CRAFTSMAN 917.273201 Service Manual

The CRAFTSMAN 917.273201 is a lawn and garden power tool designed for reliable seasonal use, requiring careful inspection and routine maintenance to preserve performance and safety. In this section, you will find an overview of the machine’s fundamental components, common operating concerns, and general safety considerations that apply before any maintenance or repair work begins. A clear understanding of the tool’s layout helps technicians and informed users identify critical interfaces such as the cutting deck, drive system, engine or motor, control levers, and electrical connections. This foundational knowledge supports accurate troubleshooting and service planning, reducing the risk of improper disassembly or reassembly that could compromise reliability or safety. Proper preparation also includes verifying model-specific specifications, including engine type, fuel requirements, oil capacity, and safety interlocks, which are essential to ensure that any work performed aligns with original design tolerances and warranty guidelines.

Safety guidelines and protective equipment are essential to minimize the risk of injury during service procedures. Always disconnect power sources and remove ignition keys or batteries before starting any maintenance to prevent accidental startup. Wear appropriate personal protective equipment such as cut-resistant gloves, safety glasses, hearing protection, and sturdy footwear when working around moving parts, blades, or sharp edges. Ensure the work area is well lit, clean, and free from obstructions that could cause slips or trips. Use stable supports or a service bench when lifting heavy components, and never work under a suspended or unsecured machine. Before handling fluids like fuel or oil, have a fire extinguisher and a spill kit readily accessible, and dispose of used fluids in accordance with local regulations. Adhere to torque specifications and reassembly procedures to maintain safe operation and avoid vibrations or component failures that could endanger users.

Disclaimers and service approach emphasize that ownership of a power tool carries inherent risks when performing maintenance or repairs. The information provided is intended for trained individuals who have access to proper tools and calibration equipment. If you encounter unfamiliar components, damaged wiring, or signs of a compromised engine or deck drive system, stop work and consult the manufacturer’s detailed service manual or a qualified technician. The service approach focuses on systematic diagnostics, safe disassembly, proper cleaning, inspection for wear, and correct replacement of worn parts with genuine or approved equivalents. Always follow the manufacturer’s recommended service intervals, lubrication points, and fuel handling procedures to preserve performance, efficiency, and safety. Document any nonconformities, keep a clear trail of parts substitutions, and reset safety interlocks after completing maintenance to ensure the machine is ready for safe operation.

Tools and parts required

The maintenance of the CRAFTSMAN 917.273201 requires a specific set of hand tools, metric and standard tooling, and a selection of replacement parts to ensure proper alignment, safe operation, and reliable performance. Begin with a quality metric screwdriver set, a variety of Phillips and flathead bits, and a 1/4-inch drive ratchet with breaker bar for leverage when removing stubborn fasteners. A torque wrench is essential to apply precise tightening to critical fasteners, preventing over-torque damage to housings and components. Don’t overlook pliers, needle-nose and locking types, as well as snap ring pliers for ring retained parts. A set of hex keys in 1.5 to 10 millimeters and 1/16 to 5/16 inches will handle most socket head cap screws encountered in the unit. A digital multimeter or a quality analog meter can prove invaluable for diagnosing electrical symptoms and verifying continuity on switches and safety interlocks. Safety gear such as cut-resistant gloves, eye protection, and a dust mask should accompany all service tasks to minimize exposure to sharp edges, debris, and fumes. In addition to general tools, you will need specialized items tailored to the mower’s construction. A bench vise or durable workbench with padding helps stabilize components during disassembly. A torque-limiting socket set, if available, can aid in consistent clamping force on pulleys and blade assemblies. A rubber mallet or dead-blow hammer provides gentle assistance when components are fitted, reducing the chance of cosmetic or structural damage. A magnetic parts tray or labeled containers keeps fasteners organized by location, which speeds reassembly and reduces the risk of missing hardware. A service manual or schematic printout is recommended to confirm torque values, fastener sizes, and the routing of wires and hoses. Replacement parts and sources should be chosen with care to ensure compatibility and long service life. Genuine or OEM replacement blades, spindle assemblies, drive belts, and air filters are preferred to maximize performance and reliability. Stock up on fresh spark plugs, air intake diaphragms, and carburetor components if applicable to your model, noting the correct part numbers from the manufacturer’s catalog. Replacement brake or clutch components, gasketing, and lubrication items such as engine oil, grease for pivots, and oil seals should be purchased from reputable suppliers who offer OEM-grade parts. For consumables like air filters, fuel filters, and oil, select products that meet or exceed the original specifications. When sourcing parts, verify compatibility against the model number 917.273201 and consult the service bulletin database if available to avoid incorrect substitutions. Maintain records of part purchase dates and serial numbers to simplify future maintenance and warranty considerations. After gathering the required tools and parts, organize your workspace to minimize misplaced hardware and to provide safe access to the mower’s underside and deck. Set the unit on a stable, level surface and engage the parking brake or secure stabilizers as appropriate. Use a component tray or magnetic mat to separate related hardware such as blade bolts, spindle housings, deck screws, and linkage pins. Before disassembly, disconnect any power sources and remove the spark plug cap to prevent accidental ignition or electrical shock. During the repair process, keep a detailed log of procedures, including measurements, torque values, and part replacements, so future servicing is more rapid and accurate. Finally, verify all safety systems and guards after reassembly, perform a careful functional test, and confirm there are no unusual noises, leaks, or vibrations before returning the equipment to service.

Machine identification and specifications are essential for proper maintenance, parts compatibility, and safe operation of power equipment. Accurate identification ensures you reference the correct service procedures, torque values, and replacement components specific to your unit. If the model number or serial reference does not match the documented data, service actions may be inappropriate and could compromise performance or safety. Begin by confirming the exact model and revision of the unit, then cross-check against the manufacturer’s published specifications to confirm compatibility with tools, oils, and attachments. Documenting these details in a service log helps technicians track wear patterns and anticipate part replacements before they impact performance.

Model number verification is a critical step that can prevent errors during repair or maintenance. The model number typically appears on a nameplate or label located on the chassis or engine compartment, and it should correspond to the official catalog or service manual. When verifying, record the full string of characters, including any letters that denote regional variants or production runs. If there is any discrepancy between the observed marking and the documented model, consult the manufacturer’s parts database or contact technical support before proceeding. This verification protects both the operator and the equipment by ensuring the correct safety features and calibration standards are applied.

Key dimensions and capabilities include overall length, width, height, wheelbase, and weight, as well as engine displacement, horsepower, and rated duty cycle. Understanding these measurements helps with transportation, storage, and the establishment of safe operating envelopes. The manual should provide tolerance ranges for critical dimensions and specify permissible operating loads, as well as any required clearances for service access. In addition, be aware of accessibility for routine maintenance tasks such as filter changes, belt inspections, and lubrication points. Precise dimension data supports accurate parts ordering and reduces the risk of improper fit or misalignment during reassembly.

Operational capabilities describe the machine’s intended tasks, performance limits, and control interfaces. This includes maximum speed, cutting or working capacity, hydraulic or electrical system specifications, and safety interlocks. Familiarize yourself with the standard configuration as shipped, and note any optional equipment that may alter performance or maintenance requirements. Recording capabilities such as fuel type, oil grade, filter specifications, and recommended service intervals ensures you perform maintenance on schedule and maintain warranty compliance. A thorough understanding of these specifications underpins safe operation, efficient diagnostics, and longer equipment life.

The initial inspection and troubleshooting phase of any outdoor power equipment service is critical to accurately diagnose issues and establish a safe, efficient repair plan. Begin by verifying the model, serial number, and reported symptoms to ensure you are working with the correct parts and service procedures for the CRAFTSMAN 917.273201. Prepare a clean, well-lit workspace and gather the necessary hand tools, a multimeter, a service manual, and safety equipment such as gloves and eye protection. Confirm that the unit is on a stable surface, the engine is cool, and the spark plug wire is disconnected before performing any inspections to avoid accidental starting or electrical shock. Documenting observations with notes or photos can help track symptoms over time and assist in ordering the correct replacement components when needed.

Common symptoms and their likely causes provide a framework for targeted testing. For instance, if the engine fails to start, potential causes include a stale or contaminated fuel supply, a fouled or damaged spark plug, a clogged fuel filter, or issues within the ignition system. If the engine runs but lacks power or stalls under load, investigate air intake restrictions, a dirty or obstructed carburetor, a misadjusted throttle linkage, or a failing fuel pump. Odd noises, excessive vibration, or abnormal exhaust emissions may indicate worn bearings, loose or damaged belts, or misalignment within the cutting system. Electrical symptoms such as blown fuses or hard-start conditions can point to wiring harness damage, short circuits, or a degraded battery in models with electric starters. Each symptom warrants a systematic check of related components to avoid misdiagnosis and unnecessary part replacement.

Visual inspection and diagnostic steps guide the hands-on portion of the process. Start with a thorough exterior check for loose fasteners, cracked housings, or signs of oil leaks, which can affect performance and safety. Inspect the carburetor for deposits, gumming, or fuel leaks, and examine the air filter for blockages that reduce airflow. Check the fuel system for stale fuel, contamination, and proper line routing; replace the fuel filter if present and verify that the fuel is fresh. In the ignition system, inspect the spark plug electrode, gap, and boot condition, and test for spark with a spark tester to confirm proper ignition. For safety-related items, verify that blade engagement mechanisms, mowing deck connections, and belt guards are intact and properly aligned. Finally, use the appropriate diagnostic tools to verify electrical continuity, resistance, and component function, recording readings for reference and future maintenance planning.

Disassembly and component access requires careful preparation and methodical steps to prevent damage to the equipment. Begin by disconnecting the power source and removing any battery or fuel connections to ensure no accidental startup during service. Photograph or document the position of wires and fasteners before removal to simplify reassembly. Use the correct size tools and take note of fastener types, as exterior panels and covers may use different thread standards. When removing panels, work slowly to avoid bending or cracking plastic housings, and set hardware in labeled containers to keep track of each component’s location. Maintain a clean, organized workspace so small parts are not misplaced, and wear eye protection to guard against debris that can be dislodged during panel removal. Safe removal of exterior panels begins with identifying the panel layout and any hidden fasteners behind decals or labels. Prior to loosening screws, inspect for hidden locking clips or torx screws that may require a specific driver. Gradually loosen fasteners in a crisscross pattern to alleviate stress and reduce the risk of bending the chassis. If panel seams are tight, apply a small amount of non-molid or plastic-safe lubrication along the edges to ease separation without damaging the finish. When panels are detached, support them to prevent accidental scratches on the body and set them aside in order with their corresponding hardware. Re-check all connections and wiring harnesses as panels are removed to avoid pinching during reassembly. Accessing the engine and drive system involves removing the belt guards, shrouds, and any protective covers that enclose the engine and drive components. Start by identifying the location of the drive belt, pulleys, and tensioning device, then carefully release belt tension following the manufacturer’s recommended procedure to avoid snap-back injuries. Document and photograph the alignment marks on pulleys and sheaves before removal to facilitate correct reinstallation. With covers removed, inspect air intake, carburetor linkage, exhaust connections, and fuel lines for wear or damage, replacing any compromised parts as needed. When accessing internal components, support the engine with stands or supports if required and avoid prying against delicate fins or bearings. After completing inspections or repairs, reassemble in the exact reverse order, ensuring all fasteners are torqued to spec and all guards are reattached securely to maintain proper operation and safety.

Engine and fuel system service

The engine and fuel system form the core of reliable outdoor power equipment performance. Begin by confirming that the equipment is on a level surface and the spark plug boot is disconnected to prevent accidental cranking. Inspect the engine for signs of oil leakage, fuel seepage, or damaged hoses and fittings. Check the air intake for blockages such as excessive dust, debris, or nests, and remove any obstructions with a soft brush or compressed air. Establish a routine that includes cleaning the exterior surfaces to prevent dirt from entering the cooling fins or air passages during service. When performing any procedure near the fuel system, ensure proper ventilation and keep ignition sources away to minimize the risk of fire or fumes exposure.

Drain and replace the fuel with fresh, clean gasoline appropriate for the engine. If ethanol-containing fuel has been used, consider adding a fuel stabilizer to prevent gum formation and varnish buildup inside the carburetor and fuel lines. Inspect and replace the fuel filter if equipped, noting any signs of restriction such as a noticeable drop in engine performance or hard starting. Remove the air filter carefully, inspect for damage or excessive dirt, and replace it if it is water-soaked, torn, or degraded. A clean air filter is essential for proper air-fuel mixture and optimal engine performance, so avoid running the engine with a dirty or saturated filter. When reinstalling components, torque fasteners to the manufacturer’s specified limits to prevent leaks or component failure.

Regular inspection of the fuel line connections is critical to prevent leaks and potential fire hazards. Look for cracks, stiffness, or soft spots in rubber hoses and replace any compromised lines. Ensure the fuel tank cap seals correctly and that the vent is not blocked. Examine the carburetor for buildup of varnish or gum, especially after prolonged storage. If fuel has sat in the system for an extended period, flushing the lines with fresh fuel may be necessary, followed by a quick idle to observe for leaks or abnormal operation. Maintaining clean and secure fuel paths improves starting reliability and engine longevity.

Resolve any symptoms of detonation, misfiring, or hard starting by checking the fuel supply, air intake, and exhaust paths for obstructions. If the engine requires adjustments, consult the service manual for the correct procedure to avoid altering timing or compression characteristics unintentionally. When performing maintenance, ensure the cooling fins and muffler area are free of debris to prevent overheating. Reassemble all components with attention to gasket integrity and proper seating to maintain compression and prevent leaks. A careful, methodical approach to the fuel system will reduce downtime and extend the usable life of the engine.

Spark system and ignition checks

The spark system is essential for consistent ignition and reliable starting. Start by disconnecting the spark plug wire and removing the plug to inspect electrode wear and insulation condition. Look for signs of fouling such as oily deposits, carbon buildup, or glazing on the ceramic insulator. Replace the spark plug if the gap is incorrect or the electrode margins are rounded, as improper gap can cause weak ignition and misfires. When reinstalling, ensure the spark plug is torqued to the specified value and that the boot seats firmly on the plug to prevent arcing. Keep the area around the spark plug clean to avoid contaminants entering the combustion chamber during installation.

Perform a functional ignition test using a known-good spark plug tester or by substituting a confirmed good plug in a controlled manner. Verify that the ignition coil produces a strong, consistent spark across a range of compression temperatures. If the engine exhibits intermittent ignition, inspect the ignition switch, wiring harness, and kill switch for corrosion, frayed conductors, or loose connections. Address any electrical issues promptly, as intermittent sparks can cause unstable engine performance and increased wear on components. Maintaining a solid, uninterrupted spark is key to crisp starting and smooth operation.

Inspect the flywheel key for shearing or damage, which can cause timing errors and poor performance. If timing is suspected, use the manufacturer’s timing procedure to check the relation between the crankshaft and the ignition system. Avoid forcing components or using improvised timing methods, as incorrect timing can lead to severe engine damage. Regular checks of the ignition system help ensure predictable starting, consistent power delivery, and longer engine life.

Fuel system inspection and cleaning

Begin with a visual inspection of the entire fuel system, including the fuel tank, lines, filter, and carburetor. Look for cracks, leaks, or soft spots in hoses, as well as signs of deterioration near the fuel fitting and clamp areas. Replace any damaged hoses and verify that fuel is able to flow freely from the tank to the carburetor without obstruction. When disconnecting lines, cap open ends to prevent moisture ingress and debris contamination. Keep a log of any parts replaced and the observed symptoms to aid in future maintenance decisions.

Cleanliness is paramount when inspecting the carburetor and fuel passages. Use approved carburetor cleaner and compressed air to remove varnish, gum, and dirt from jets, passages, and the throat of the carburetor. Avoid disassembly beyond what is specified in the service manual to prevent misalignment of metering components. After cleaning, reinstall all parts in the correct orientation and ensure that seals and gaskets are intact. Reconnect fuel lines securely and verify there are no leaks under pressure before attempting startup.

Check the fuel filter for particulates and replace it if it shows signs of restriction or heavy contamination. If the fuel tank has a screen or a filter screen, remove and clean or replace it as recommended by the manufacturer. Ensure that the fuel shutoff valve, if present, operates smoothly and seals properly when closed. By maintaining a clean, unobstructed fuel system, you reduce the risk of lean conditions, misfires, and carbon buildup in the combustion chamber.

During testing, monitor engine performance for consistent idle, smooth acceleration, and stable operation under load. Address any symptoms such as surging, stalling, or misfiring by tracing them back to the fuel path, air intake, and ignition system. Maintain records of fuel type, storage duration, and any additives used to help diagnose future issues. A clean and well-maintained fuel system contributes significantly to engine reliability and overall mower or power equipment performance.

Compression and timing procedures

Compression testing provides a snapshot of the engine’s health and aids in diagnosing internal wear. Use a properly calibrated compression gauge and perform the test with the spark plug removed to obtain an accurate reading. Record the reading and compare it to the manufacturer’s specifications for your model. If compression is consistently below spec across all cylinders, investigate potential issues such as worn piston rings, damaged cylinder walls, or a blown head gasket. If compression is uneven, examine valve seating, gaskets, and pushrod alignment for signs of wear or obstruction. A high-quality compression test supports proactive maintenance and reduces unexpected failures in the field.

Timing procedures ensure that the ignition and valve system work in harmony for optimal performance. Refer to the engine’s timing marks and align components according to the manufacturer’s specification. Use the correct tools and avoid forcing gears or cogs into misalignment, as this can cause severe valve damage or piston interference. If timing is out of spec, follow the documented sequence to adjust camshaft or crankshaft positions as required. After adjustments, recheck compression and fuel consistency to confirm that timing changes have restored proper engine behavior.

Inspect the valve train for wear, lubrication adequacy, and proper clearance. If you observe abnormal ticking noises, reduced performance, or poor cold starts, investigate valve lash and ensure rocker arms or lifters are properly seated. Proper lubrication reduces wear and ensures smooth valve movement, contributing to consistent compression and efficient combustion. Completing a thorough compression and timing check helps prevent severe engine damage and extends service intervals for the equipment.

Conclude by performing a controlled restart after all adjustments and checks. Observe starting reliability, idle stability, and response to throttle input. If the engine exhibits any abnormal behavior during run, shut down safely and re-evaluate the affected system. Document the procedure outcomes and maintenance performed to maintain a reliable service history for the unit. A disciplined approach to compression and timing secures engine longevity and dependable operation in demanding outdoor environments.

Maintenance of the lubrication and cooling systems is essential for the reliable operation and longevity of the Craftsman 917.273201 lawn mower. Proper lubrication reduces friction, minimizes wear, and helps to dissipate heat generated during engine operation. Regular attention to both oil management and cooling pathways ensures that the engine maintains optimal performance, which in turn extends service intervals and reduces the likelihood of unexpected breakdowns. Start by establishing a routine inspection schedule that coincides with the mower’s hours of operation and environmental conditions, particularly in dusty or high-temperature environments. Consistent maintenance habits also support better performance in starting reliability and fuel economy over the life of the equipment. Oil type and capacity is a critical specification for this model, and using the correct viscosity and amount ensures proper lubrication under varying temperatures. Confirm the oil grade recommended by the manufacturer and check that the oil meets the specified performance standards for engines of similar design. Use a clean, labeled container to drain the old oil, and inspect the drained oil for metal shavings or an unusual color, which can indicate internal wear or contamination. When refilling, pour slowly to avoid overfilling and check the level with the dipstick or sight gauge according to the engine design. Replace the oil filter if your model uses one, and replace the gasket or seal with every oil change to prevent leaks. After completing an oil change, run the engine briefly and recheck the level, ensuring the reading is within the recommended range with the engine stopped on a level surface. Cooling system inspection and flushing is required to prevent overheating, which can lead to reduced performance and accelerated component wear. Inspect cooling fins, shrouds, and air paths for grass clippings, dirt, and debris that can obstruct airflow. Clean the cooling area carefully using compressed air or a soft brush, taking care not to bend or damage delicate fins. If the cooling passages appear clogged or flow is restricted, perform a controlled flush with an appropriate coolant or system cleaner recommended for the engine, following the product’s instructions precisely. After flushing, dry all components thoroughly and verify that the air intake and exhaust paths are clear. Periodically inspect the cooling system seals and hoses for signs of cracking or leakage and replace any worn parts to maintain effective heat transfer and prevent engine overheating.

The electrical system of the Craftsman 917.273201 contains several integrated subsystems that work in concert to provide reliable starting, charging, and operation of all accessories. Begin with a careful visual inspection of the battery terminals and cable connections for corrosion, looseness, or bent contacts. Use a digital multimeter to verify battery voltage, ensuring it remains within the specified range when the engine is off and under load during cranking. If the voltage is consistently low, perform a load test or load the battery with a professional tester to determine remaining capacity and replace the battery if it cannot sustain proper voltage. Always disconnect the negative cable first and reconnect it last to prevent short circuits during inspection or service.

In diagnosing the charging system, verify the alternator or charging module is producing the correct output by measuring the system voltage with the engine running at a moderate idle. A healthy charging system should maintain approximately 12.6 to 12.8 volts with the engine off and about 13.8 to 14.8 volts with the engine running and under light to moderate electrical load. If the output is low or fluctuates, inspect the drive belt for wear, tension, and proper alignment, as a slipping belt can cause reduced charging. Inspect wiring from the stator or alternator to the voltage regulator for obvious damage or loose connections, and use a wiring diagram to confirm that the regulator ground path is solid. Any abnormal readings should prompt tracing the circuit to locate broken wires, high-resistance connections, or blown fuses that can impede charging performance.

Wiring harness and connector inspection requires a methodical approach to identify damaged insulation, pin misalignment, or corrosion at connector interfaces. Disconnect power and gently separate harness sections to inspect for exposed copper, melted insulation, or pin deformation. Pay particular attention to connectors exposed to vibration in the mower deck area, under-seat compartments, and near the engine compartment where heat can accelerate insulation degradation. When inspecting connectors, ensure that terminals are fully seated, and use contact cleaner as needed to restore reliable conductivity. If a harness shows signs of wear or heat damage, replace the affected sections or the entire harness to prevent intermittent electrical faults that could affect starting, charging, or safety-related circuits.

Ground integrity is essential for system stability; verify that all engine and chassis grounds are clean, tight, and free of corrosion. Use a dedicated grounding point to measure low resistance between the battery negative terminal and the engine block or frame. A high resistance reading indicates a marginal ground path that can cause fluctuating electrical behavior, including starter or accessory failures. Clean ground contacts with emery cloth, reassemble with clean, dry hardware, and apply an appropriate dielectric or anti-corrosion compound where specified. After reassembly, perform a functional test of critical circuits such as ignition, lights, and the charging system to confirm that improvements are realized across the board.

When diagnosing intermittent electrical issues, employ a systematic approach: replicate the fault, isolate the suspect circuit, and test in a controlled manner. Use a digital multimeter to monitor voltage drops across harnesses and connectors under load, and consider adding inline fuses or circuit breakers where permissible to protect harnesses during testing. Document all findings, including resistor and diode checks if applicable, and compare measurements to the service data to decide between repair or replacement. Always follow the manufacturer’s safety precautions, disconnect power before disassembly, and secure the mower to prevent movement during diagnostic work.

Battery and charging system sections should be complemented with routine preventative maintenance. Schedule periodic cleaning of battery terminals, replacing aging cables, and ensuring venting caps are intact to prevent gas buildup. Regularly inspect the condition of the charging system belts and pulleys for wear, noise, or misalignment, and replace worn components promptly to avert belt failure that could compromise electrical performance. By adhering to these procedures, technicians can maintain reliable operation, extend component life, and reduce the likelihood of electrical trouble that disrupts mowing productivity.

In summary, a thorough electrical diagnosis on the Craftsman 917.273201 involves careful battery testing, verification of charging output, meticulous inspection of wiring harnesses and connectors, and solid grounding checks. By following a structured approach and referencing the service data, technicians can identify faults efficiently, perform precise repairs, and restore full functionality to the mower’s electrical systems with confidence and safety.

Craftsman 917.273201 Service Manual Drive system and transmission service The drive system and transmission of the Craftsman 917.273201 mower are critical for reliable operation and safe performance. Begin by disconnecting the power source and removing the ignition key to prevent accidental starting during inspection. Inspect the drive belt paths for signs of wear, cracking, fraying, or glazing on all pulleys, idlers, and tensioners. When inspecting belts, measure width and thickness against the manufacturer’s specifications and replace any belt that shows deep cracks, missing teeth, or significant stretching. Take care to check for oil contamination on belts, which can reduce grip and accelerate wear; if oil presence is detected, identify and repair the oil source before belt replacement. For the transmission case, look for fluid leaks around seals and gaskets, and verify all fasteners are torqued to the recommended values. If leakage is present or the transmission demonstrates unusual noises or slipping, perform a more thorough inspection of gear trains and shaft seals, as lingering issues can cause accelerated wear and potential failure. When road-testing the mower after service, operate at a low speed initially to confirm smooth engagement of drive gears and consistent belt tension. Listen for any abnormal squeals, grinding noises, or hesitations that could indicate misalignment or worn components. Maintain a clean work area and document all inspections and replacements for future reference. Clutch and belts inspection and replacement Clutch and belts are integral to the engagement and disengagement of the drive system and to overall propulsion. Start with a visual inspection of the drive belt for glazing, cracks, or missing teeth; use a belt gauge if available to verify proper width and thickness. Inspect the clutch assembly for signs of wear on the friction surfaces, springs, and engagement pins; uneven wear or a rough engagement can indicate the need for a clutch rebuild or replacement. If the mower exhibits delayed or incomplete engagement, check belt tension in addition to clutch linkage alignment, as improper tension can mimic clutch failure. When replacing belts, ensure the belt seats correctly in all pulleys and that the belt routing follows the original path precisely to prevent misfeeds or early wear. For clutches, remove the belt and slowly rotate the clutch. Check for smooth rotation with consistent resistance and listen for any grinding sounds that may reveal internal bearing wear. Reassemble using the manufacturer’s torque specifications for all mounting bolts and recheck alignment after installation. After any clutch or belt service, perform a careful test run at low speed before returning the mower to normal operating conditions, confirming full engagement and disengagement without slipping. Drive belt alignment and tensioning Proper drive belt alignment and tension are essential for efficient power transfer and long belt life. Start by inspecting the belt’s routing to confirm it sits squarely within pulley grooves and that there are no twists or kinks that could cause sensor errors or belt wear. Use alignment marks or a straightedge to verify that the pulleys are coplanar and parallel; even small misalignments can lead to edge wear and premature belt failure. When adjusting tension, consult the service manual for the correct tension range and apply tension gradually using the tensioner device or an appropriate wrench, ensuring the belt has a slight deflection as specified. After tensioning, rotate the drive system manually to feel for binding or binding points and listen for any unusual noises that would indicate misalignment or foreign objects lodged in the belt path. Recheck belt tension after a brief operation since heat can cause belts to expand slightly and require a minor re-tension. Finally, inspect all related bearings and idlers for smooth rotation and absence of side play; replace worn bearings to prevent future misalignment or belt wear. Document the procedure, including measured tension and any parts replaced, to support future maintenance cycles.

CRAFTSMAN 917.273201 Service Manual details are essential for maintaining reliable mowing performance, especially when the mower deck and cutting system begin to show signs of wear. A well-maintained deck ensures even blade contact with the grass, reduces vibration, and promotes consistent cutting heights across the full width of the deck. Begin with a careful visual inspection of the deck surface for cracks, corrosion, or warping, and examine the underside for grass buildup that can impede blade motion. Keep the deck clean and free of debris, and remove the spark plug boot or disconnect the battery as a safety precaution before performing any handling or inspection. Regular checks help identify potential problems early and extend the life of the mower’s cutting system.

Proper blade geometry is critical for achieving an even cut and reducing stress on the engine and spindle assemblies. When inspecting the blades, verify the mounting holes align properly with the spindle mandrels, and look for nicks, cracks, or excessive corrosion along the blade edges. Use a straight edge or a blade gauge to confirm that each blade sits true without bending, and ensure the blades are balanced to prevent vibration that can shorten bearing life. If you detect any blade damage, replace the affected blade pair with manufacturer-approved replacements and ensure both blades are the same weight and length to maintain balanced cutting performance. After blade inspection or replacement, run the deck for a test cut at a safe, low height to observe any unusual noise or vibration and address underlying causes promptly.

Deck belt replacement and tensioning are vital to preserving drive efficiency and the cutting system’s effectiveness. Start by removing the deck belt cover and noting the belt routing as you disconnect the belt from pulleys to avoid misrouting during reassembly. Inspect the belt for signs of wear, cracking, glazing, fraying, or missing ribs, and replace the belt if any damage is evident. When installing a new belt, route it according to the original path and tension it to the manufacturer’s specified setting using a belt tension gauge or the recommended method for the model. After installation, rotate the blades by hand to ensure smooth operation without binding, and recheck belt tension after a brief run to account for any settling. Regular belt maintenance reduces slippage, improves cutting performance, and minimizes heat buildup in the engine and drive system.

The safety devices on a CRAFTSMAN 917.273201 are designed to protect the operator and bystanders during normal operation and under fault conditions. Begin by inspecting all safety features for signs of wear, damage, or incorrect installation. Verify that the full sequence of operations can be performed manually with the engine off, and that any interlocks, switches, and blades engage properly when the control levers are activated. When testing, ensure the machine is on a flat, stable surface with the spark plug wire disconnected to prevent accidental starting. Document any discrepancies and address them before attempting functional testing with the engine running. Regular inspection of safety components helps prevent unexpected shutdowns and reduces the risk of injury during operation or maintenance.

Brake and blade shutoff testing ensures that loss of blade motion is immediately detected and that the equipment halts safely under various fault conditions. Begin by testing the blade brake if equipped, allowing the engine to run at operating speed and engaging the blade control to confirm that the blade stops within an acceptable time frame. Next, verify that the blade stop mechanism engages when the operator presence control is released or when the brake control is applied, depending on the specific configuration of the model. For the parking brake, apply and release it several times to confirm that it secures the machine on level ground and releases without binding. Always re-check the ignition switch, blade clutch, and kill switch behavior after any adjustment to ensure coordinated shutdowns in all modes. If the blade does not stop promptly, inspect the brake lining, linkage, and stopping mechanism for wear or obstruction and perform necessary maintenance before proceeding.

Operational test procedures cover normal cutting functions and emergency stop behavior under representative load conditions. Start by performing a dry run with the engine off to confirm that all control levers move freely and return to the neutral position without binding. With the engine running, engage the throttle to operating speed and verify that all safety interlocks respond correctly when the operator presence control is released, the bail arm is engaged, or the blade switch is activated. Conduct a cutting test in a safe, unobstructed area using light load to verify that the drive system, steering, and vibration controls operate smoothly. In an emergency scenario or fault condition, trigger the emergency stop and confirm that all power to the cutting system ceases immediately, and that the engine can be restarted only with the correct sequence. Document any anomalies and perform the appropriate maintenance or part replacement before returning the machine to service.

Troubleshooting guide and repair flowchart

The troubleshooting guide for the CRAFTSMAN 917.273201 focuses on a systematic approach to diagnosing common operational faults in outdoor power equipment. Begin with a visual inspection to confirm there are no obvious mechanical obstructions, loose fasteners, or damaged wiring harnesses. Take careful notes of any symptoms such as unusual noises, failure to start, loss of power, or irregular idling, and correlate them with the machine’s typical operating conditions. Use a logical flow to move from broad checks to specific component tests, ensuring that safety procedures are observed at every stage. Document each finding and correlate it with the recommended repair path to support accurate maintenance history for future service intervals.

The repair flowchart begins with safety verification: disconnect power sources, remove spark plugs if applicable, and drain fuel or disconnect electrical lines as required. Once the system is isolated, perform a functional check of the starting apparatus, including the ignition system or safety interlocks. If the engine fails to start or runs intermittently, progress to fuel quality, carburetor condition, and air intake cleanliness before evaluating ignition timing and compression. For performance issues like loss of power or smoking, inspect the air filter, exhaust path, muffler condition, and exhaust restriction, followed by a targeted check of the fuel delivery system. By documenting the sequence of checks and their outcomes, technicians can narrow down causes efficiently and avoid unnecessary component replacement.

When confronted with electrical symptoms such as intermittent shutdowns or erratic operation, validate battery condition or charge state, assess ignition coil health, inspect wiring for shorts or opens, and verify that safety switches and PTO mechanisms function correctly. In cases of abnormal noises or vibration, examine the drive belt or linkage, check pulley alignment, and look for worn bearings or misaligned components. The flowchart encourages repeating suspect-area tests after any repair or replacement to confirm that the fault is resolved and that no new issues have been introduced during maintenance. Adhering to this structured approach helps ensure reliable restoration of full functionality while protecting operator safety and equipment longevity.

Symptom based diagnostic path

Begin with a clear account of the symptom and its onset. For starting problems, categorize whether the engine turns over and does not start, starts briefly and dies, or fails to turn over at all. If the engine is cranking but not starting, check fuel quality, carburetor cleanliness, and air filter integrity first before moving to ignition components. If there is no crank or the engine exhibits a hard start, verify compression levels, spark plug condition, and the presence of a proper ignition signal. For idling or stall issues, evaluate the idle speed setting, throttle linkage, and air intake for obstructions, followed by carburetor adjustments if needed. Document each diagnostic step and its result to guide efficient decision-making about repairs or replacements.

If the unit operates but exhibits reduced power under load, inspect the air intake, exhaust path, and fuel line integrity for leaks or restrictions. Check for clogged filters, dirty carburetor jets, or restricted mufflers. In cases of excessive smoke or fuel smell, assess fuel metering, choke operation, and the cleanliness of the carburetor passages. For abnormal vibrations or unusual noises, inspect drive components including belts, pulleys, bearings, and deck attachments, ensuring all fasteners are secure and aligned. Each symptom path should guide you toward the smallest, most cost-effective remedy while maintaining the safety and reliability of the machine.

When to replace versus repair

A repair-first mindset is appropriate for components that are frequently serviceable, affordable, and critical to safe operation, such as air filters, spark plugs, and fuel lines. If a component demonstrates excessive wear, corrosion, or repeated failure under normal use, replacement becomes the more economical and reliable option. For complex assemblies like the carburetor or ignition module, assess the cost of replacement versus refurbishment, availability of spare parts, and the ease of installation. If ongoing repairs are required within a short interval or if testing reveals inconsistent performance, replacement of the affected subassembly is often the prudent choice to restore reliability. Always compare the total cost of ownership, including labor time and downtime, against procuring a new or remanufactured unit when appropriate.

When evaluating mechanical vs electrical faults, consider the long-term implications: a worn belt or bearing can affect multiple subsystems and lead to cascading failures if left unaddressed. In contrast, an electrical fault such as a failing ignition coil may be isolated and resolved with a straightforward replacement, reducing downtime and risk. For safety-critical systems like PTO interlocks or starting switches, replacement may be mandatory to meet reliability and safety standards. Ultimately, the decision to repair or replace should be grounded in a clear cost-benefit analysis, certified safety considerations, and an honest assessment of the equipment’s remaining usable life based on maintenance history and observed wear patterns.

Reassembly and final checks require a methodical approach to ensure optimal performance and safety after servicing a power equipment unit such as the CRAFTSMAN 917.273201. Begin by verifying that all components removed during disassembly are accounted for, and confirm that replacement parts meet the manufacturer’s specifications. Carefully re-install major assemblies in the reverse order of disassembly, taking care to align mating surfaces and fasteners, and use the correct fastener types and torque where specified. Pay particular attention to areas involving seals, gaskets, and grommets, inspecting for proper seating and absence of damage to prevent leaks or air leaks that could compromise performance. After reassembly, perform a visual inspection to confirm that no tools or loose parts remain in the housing or linkage pathways, and ensure that all cables and linkages move freely without binding.

During reassembly, cleanliness is essential. Wipe down mating surfaces to remove oils or debris that could interfere with seals, and replace any worn or damaged components, such as bearings, bushings, or seals, with OEM parts. When reinstalling the engine cover, ensure that all timing marks, alignment pins, and electrical connectors align correctly to avoid mis-timing or connectivity issues. Recheck the routing of hoses and ignition wires to prevent chafing or interference with moving parts. Finally, verify that all safety interlocks are correctly re-engaged to maintain safe operation of the equipment.

Torque specifications and alignment checks are critical to long-term reliability. Use a calibrated torque wrench and the manufacturer’s specified torque values for all fasteners, ensuring uniform tightening to prevent warping or improper clamping. For areas involving rotating shafts or flywheels, confirm proper belt tension and pulley alignment with the specified deflection or tension range, and verify that sheaves run true with no lateral play. Alignment checks should include the engine, blade or cutting assembly, and drive components to ensure smooth power transmission and balanced operation. If misalignment is detected, re-check shims, mounting brackets, or spacer thickness and correct as necessary before final reassembly.

Operational readiness and test run procedures should follow a successful reassembly and alignment check. Start with a low-idle test to verify that the engine runs smoothly and reaches normal operating temperature without overheating. Listen for unusual noises, vibrations, or smoke, and inspect for any fluid leaks during the initial operation. Monitor electrical systems, including the ignition system, safety switches, and battery or charging circuit, ensuring all indicators function correctly. Conduct a controlled test of all functions, such as speed control, blade engagement, and clutch systems, in a safe, open area away from bystanders. If any anomalies arise, shut down immediately, re-inspect affected components, and address issues before proceeding with extended operation. Finally, perform a post-test inspection to confirm that all safety devices remain functional and that there are no signs of premature wear or misalignment after the test run.

Maintenance intervals and records for outdoor power equipment require a disciplined schedule to ensure reliable operation and safe performance. Properly timed inspections, lubrication, filter changes, and blade or cutting component servicing help prevent unexpected breakdowns and extend the life of the machine. By establishing a routine, you can identify wear patterns early, address potential issues before they become costly repairs, and maintain peak engine efficiency. Adhering to these intervals also supports safer operation by ensuring critical safety features and protective guards are functioning as designed. Consistency in maintenance reduces downtime and helps retain the resale value of the equipment over time.

Recommended service intervals vary with usage, environment, and model specifications, but a general framework can guide most routine maintenance tasks. Daily or every-use checks should include a visual inspection for loose fasteners, fuel leaks, and obvious wear; cleaning of debris from the air intake and cooling surfaces; and ensuring belts and pulleys rotate freely without abnormal noise. Weekly tasks typically involve checking and cleaning or replacing air filters, inspecting spark plugs or glow plugs, and verifying oil levels and coolant if applicable. Monthly or every 25 operating hours tasks expand to more thorough lubrication of moving joints, inspection of electrical connections for corrosion, sharpening or repairing cutting components, and confirming the integrity of safety guards and shields. Seasonal or annual maintenance should address deeper inspections of the engine, fuel system, hydraulic lines if present, and a comprehensive tune-up that may include carburetor adjustments, valve clearance checks, and a detailed inspection of the drive system and transmission if equipped.

Keeping a service log and parts inventory is essential for traceability and future maintenance planning. A well-maintained log should document the date of each service, the specific tasks performed, parts replaced, and any measurements or readings taken (such as oil level, filter condition, or blade height). Recording the operating hours or usage since the last service helps correlate wear with workload and informs the next interval. An up-to-date parts inventory ensures that commonly used components—filters, gaskets, spark plugs, belts, and lubricants—are readily available to reduce downtime when a service is required. When bookkeeping, categorize entries by task type, note supplier and part numbers, and attach receipts or warranty information for quick reference. Regular audits of the log and inventory help identify trends, approve recurring maintenance budgets, and support compliance with warranty requirements or safety certifications for the equipment.

Appendix and reference materials

The Appendix and reference materials provide essential data for the ongoing maintenance and repair of the CRAFTSMAN 917.273201 mower. This section consolidates critical fastener specifications, safety reminders, and cross-reference information to support accurate servicing. Users should review these materials after performing major repairs to verify all tolerances and ratings meet the manufacturer’s recommendations. Keeping these references on hand ensures consistent results and helps prevent common reassembly errors that can affect performance and safety.

Within the reference materials, you will find a consolidated list of torque specifications for common components used on this model. Adhering to the correct torque values is crucial to ensure proper clamping force without overstressing parts. When torquing fasteners, use a calibrated torque wrench and verify the tool is within its recommended calibration interval. Always tighten in the sequence specified by the service manual to avoid misalignment or uneven load distribution that could compromise reliability.

The wiring diagrams and schematics section is a critical resource for diagnosing electrical issues and for performing safe, accurate repairs. These diagrams illustrate the routing of power, ground, and signal lines, as well as connector pinouts and color codes. When tracing circuits, work with the battery disconnected and use insulated tools to minimize the risk of short circuits. If you encounter a damaged harness or connector, compare the actual part to the diagram to identify replacements or repair options that maintain original electrical performance.

Torque charts and fastener specs provide quick-reference guidance for selecting appropriate screws, bolts, and nuts during assemblies and reassemblies. This material includes recommended thread engagement depths, material compatibility notes, and any special coatings or anti-seize requirements. Before replacing hardware, verify thread sizes and compatibility with adjoining components to prevent stripping or cross-threading. Document any deviations from standard specifications if you use alternative fasteners, ensuring compliance with service safety practices and warranty considerations.

Additionally, you can expect lists of tool identifications, maintenance intervals, and test procedures designed to validate repair quality after service. These references help technicians confirm that adjustments, alignments, and calibrations meet factory standards. Use the charts as a checklist during final inspection to ensure the mower operates as intended, with stable idle, accurate cutting height, and reliable safety interlocks. Maintaining thorough notes from each service visit supports traceability and future troubleshooting efforts.