SCAG SWZV36A-16KAI Service Manual
The SCAG SWZV36A-16KAI is a commercial zero-turn mower designed for efficient, high-performance mowing in demanding professional environments. This service manual provides a comprehensive technical reference to support safe operation, diagnostic procedures, and routine maintenance. It covers essential systems including the engine, cutting deck, hydraulics, electrical, and chassis components, with emphasis on proper torque specs, alignment, and calibration. The information aims to aid technicians in diagnosing issues, performing repairs, and maintaining peak performance while extending the equipment’s service life. Users should follow all manufacturer recommendations and local regulations to ensure safe and compliant usage.
Safety is the foundation of effective maintenance and operation. Before any service, disconnect the battery or power source as applicable and ensure the machine is on a flat, stable surface with the parking brake engaged. Use appropriate personal protective equipment, including eye protection, gloves, hearing protection, and steel-toed footwear as required by the task. Verify that all guards, shields, and safety devices are intact and functional before operation. When working on fuel systems or hot components, allow sufficient cooling time and work in a well-ventilated area to prevent exposure to fumes or burns. Clear the work area of bystanders, and never bypass safety interlocks or protective circuitry. Adhere to lockout/tagout procedures when performing maintenance that could lead to unexpected startup. Regularly inspect for signs of wear, damage, or fuel leaks, and address them promptly to avoid hazardous conditions.
Identification and model verification is essential to ensure you are using the correct parts and procedures for the SCAG SWZV36A-16KAI. Confirm the model number on the data placard located on the chassis or frame and cross-reference with the service manual to verify compatibility. Record the serial number, plant/machine location, and purchase date in the service log. If replacement parts are required, use only SCAG-approved components that match the specified part numbers and compatibility notes. When in doubt, contact SCAG technical support with the model and serial information to confirm procedure applicability and torque specifications. Accurate identification prevents incorrect repairs and helps maintain warranty compliance and serviced life of the mower.
Specifications and tools required
The SCAG SWZV36A-16KAI is a commercial-grade zero-turn mower designed for robust performance under demanding conditions. Its electrical system features a 12-volt battery charging circuit, a direct-injection fuel system, and a fail-safe ignition module that coordinates with the engine control to ensure reliable starts. Understanding the electrical and engine specifications helps technicians diagnose issues efficiently and perform proper maintenance. The engine is typically a air-cooled, four-stroke design with a specified displacement and horsepower rating appropriate for heavy use in landscape applications. It is essential to verify voltage levels, battery condition, and charging output during routine inspections to prevent unexpected downtime. Knife-edge tolerances and sensor placements are documented by the manufacturer, and adherence to these tolerances is critical during calibration and testing. Torque specifications and fastener chart provide the blueprint for safe and effective assembly and maintenance. Correct torque ensures optimal clamping force, bearing preload, and thread integrity, reducing the risk of component failure during operation. Fastener sizes include bolts, nuts, and flange bolts used across the chassis, deck, suspension, and drive systems. When performing service, apply the recommended torque in a clean, dry state and use a calibrated torque wrench to avoid under- or over-tightening. For high-strength fasteners, follow the specified sequence and use approved thread-locking compounds where applicable. Reinstall gaskets and O-rings with care to preserve sealing performance, and replace any damaged fasteners with OEM equivalents to maintain warranty compliance and reliable operation. The recommended tools and testing equipment list is essential for accurate diagnosis and safe maintenance. This includes a standard metric and SAE socket set, a torque wrench with appropriate ranges, and service-specific specialty tools for seat removal, belt tensioning, and deck adjustments. A digital multimeter is necessary for voltage and resistance checks across the electrical system, while a scan tool compatible with the engine controller can aid in reading fault codes. A propane or ether-free starting aid should be kept on hand only if specified by the manufacturer and used strictly according to instructions to avoid safety hazards. A vibration meter, tone generator, or stethoscope can help pinpoint abnormal noises from the engine, transmission, or driveline, and a hydrometer or compression tester may be required for engine health assessment. Always reference the OEM maintenance manual for the exact tool model numbers and torque values to ensure compatibility with the SCAG SWZV36A-16KAI platform.Initial inspection and troubleshooting framework begins with a careful pre operation assessment to establish a baseline and identify any obvious safety concerns. Start by verifying operator credentials, fuel level, oil condition, and coolant status if applicable. Inspect the machine for any physical damage, loose fasteners, visible leaks, or missing safety guards. Confirm that all safety interlocks function correctly and that the seat switch and kill switch respond as expected. Document readings from the hour meter, battery condition, and charging system, as well as tire or track integrity if the equipment uses them. A systematic visual inspection can reveal issues that might not be detected by electronic diagnostics alone and sets the stage for accurate fault isolation.
Common fault codes and diagnostic approach require a structured interpretation aligned with the machine’s electronic control modules. Begin by recording any fault codes displayed on the instrument cluster or diagnostic interface, including the exact code and associated operating conditions. Cross reference each code with the service literature to determine its meaning and possible causes, such as sensor faults, actuator failures, or communication errors between control modules. Prioritize faults by safety impact and likelihood, and perform basic functional checks to reproduce the condition where safe to do so. Use a multi-meter or diagnostic scanner to verify sensor voltages, resistance values, and continuity of wiring harnesses, paying particular attention to grounds and power supply rails that commonly cause intermittent failures. Always clear fault codes after repair to confirm a successful reset and to ensure no residual codes reappear during initial testing runs.
Systematic troubleshooting flow emphasizes a logical, repeatable sequence to isolate root causes efficiently. Start with the most probable causes based on observed symptoms and known failure modes for the SCAG SWZV36A-16KAI model, such as fuel delivery, ignition, or hydraulic systems, depending on the job. Move from broad to specific diagnostics: verify basic power and ground integrity, then test subsystems in isolation, and finally verify interconnections between modules. Conduct pressure and flow tests where applicable, inspect filtration integrity, and examine actuators for sticking or sluggish response. When possible, substitute known-good components or use controlled diagnostics to determine whether a fault follows a particular module or a specific circuit. Conclude by validating repaired systems under load conditions to ensure performance matches specification and that no ancillary issues were introduced during the repair process.
The SCAG SWZV36A-16KAI engine is designed to deliver reliable performance under demanding outdoor power equipment use. Start by confirming the engine model, serial number, and current hour meter reading before performing any service. Follow the manufacturer’s recommended service intervals to maintain peak efficiency and prolong life, including regular oil changes, spark plug inspection, and cooling system checks. Establish a maintenance calendar that aligns with operating hours and environmental conditions, such as high-dust or extreme heat, which can accelerate component wear. Document all services performed, noting any deviations from standard procedures and the observed condition of critical parts like gaskets, seals, and the air intake system. Regularly verify fuel quality, examine for water contamination, and replace oil filters and air filters at the recommended intervals to sustain proper engine performance and emission compliance.
Engine oil and filter changes should be conducted using the correct viscosity and grade specified for the SCAG SWZV36A-16KAI. Warm the engine to operating temperature before draining to ensure complete oil removal, then replace with the manufacturer-recommended oil type and capacity. Install a new oil filter if applicable, ensuring the sealing gasket contacts are clean and free of debris. After refilling, run the engine for a few minutes and recheck the oil level, topping up as necessary to the full mark. Periodically inspect the oil cooler and lines for signs of leakage or cracking, replacing any compromised components promptly to prevent overheating and accelerated wear.
Fuel system inspection and cleaning procedures
Inspect the fuel system for proper connections, leaks, and integrity of fuel lines, clamps, and the fuel shutoff valve. Use clean, fresh fuel of the correct octane rating and avoid ethanol blends that exceed the manufacturer’s recommendations if specified. Remove the fuel tank and thoroughly inspect for varnish, sediment, or moisture; drain and replace fuel as needed. Disconnect the fuel line at the carburetor and, if permitted, use an approved fuel system cleaner according to the product instructions to loosen varnish deposits. After cleaning, inspect the carburetor, fuel pump, and filter screen for wear or clogging, and replace or service components to restore optimal fuel delivery. Finally, perform a thorough leak test by pressurizing the fuel system with the engine off and confirming there are no leaks around the fittings, seals, or tank area.
Air system maintenance and filtration
Air intake cleanliness is essential for consistent engine performance and fuel efficiency. Remove the air filter assembly and inspect the filter element for dirt, oil saturation, or damage; replace it if any degradation is observed. Clean the air intake housing and ducting to remove dust and debris that could restrict airflow, using a soft brush or compressed air in short bursts from the clean side to the dirty side to prevent contamination. Reassemble with a correctly seated filter and a fresh pre-cleaner if the design includes one. Regularly inspect the air intake seals and gaskets for signs of wear or cracking, replacing them to prevent unfiltered air from entering the combustion chamber. Schedule routine testing of the airflow and idle stability, noting any hesitations or surges which may indicate a clogged filter or vacuum leaks requiring further inspection and service.
The electrical system on the SCAG SWZV36A-16KAI combines power delivery with smart control to ensure reliable starting, charging, and operator feedback. Proper interpretation of wiring diagrams is essential for accurate diagnosis and safe repairs. Start by verifying the circuit power state and locating the corresponding harness connectors, fuses, and relays in the service manual diagram. When tracing wires, use the color-coding and reference designators as a map to identify potential shorts, opens, or damaged insulation. Always disconnect the battery before performing any continuity checks or component replacements, and document any deviations from the standard diagram to avoid misdiagnosis during reassembly. A systematic approach helps prevent accidental damage to sensitive sensors or control modules and reduces diagnostic time substantially.
The battery and charging system in this model is designed to provide consistent voltage to electronic controls and starting systems even under heavy load. Begin with a measured voltage check at the battery terminals with the engine off, then perform a load test to assess the battery’s ability to maintain voltage under load. Inspect the charging system components, including the alternator or charging regulator, for proper output and wiring integrity. Corroded terminals, loose connections, or damaged harness insulation can mimic charging failures, so clean, secure, and reseal connections after testing. If the system voltage drops under load, isolate the suspect device by performing a step-by-step circuit isolation, using the wiring diagram as your guide to identify all power feeds and ground references. Regular maintenance of the battery tray and vented areas prevents moisture ingress that could compromise performance and longevity of the electrical system.
Sensor and actuator diagnostics require careful verification of input signals, output responses, and timing relative to engine operation. Start by confirming the sensor supply voltage and ground integrity with the engine at idle, then monitor sensor data using a diagnostic tool or multi-meter while the system undergoes typical operating cycles. Compare readings against the manufacturer’s specified ranges to determine whether a sensor is within tolerance or requires replacement. Actuators such as solenoids, solenoid valves, and electronic control valves should exhibit smooth operation without intermittent sticking or arcing; verify by cycling them with the correct control signals and observing corresponding changes in system behavior. When diagnosing faults, consider electrical noise, grounding quality, and connector integrity, as high-impedance paths can produce unreliable sensor signals. Replacing a sensor or actuator should always be accompanied by a re-check of related circuits to ensure the fix resolves the symptom without introducing new issues.
The hydraulic system in the SCAG SWZV36A-16KAI employs a closed-loop design that powers the drive motors and implements responsive control for smooth operation. Inspect the primary drive circuit for signs of external damage to hoses, fittings, and the reservoir; any leakage or abrasion can lead to pressure loss and reduced performance. Be sure to verify that the hydraulic fluid is clean and at the correct level, as contaminants and low fluid can cause cavitation, reduced efficiency, and accelerated component wear. When diagnosing performance issues, monitor system temperatures and listen for unusual humming or rumbling sounds that may indicate internal wear or a restriction in the return lines. Regularly check hydraulic filters for plugging and replace them at the intervals specified by the manufacturer to maintain optimal flow and cleanliness within the circuit.
Inspect the hydraulic pump and drive motors for proper mounting alignment, securing bolts, and any signs of oil seepage around seals and gaskets. Rotation should be smooth with consistent torque delivery; if you notice binding, excessive play, or noise, remove power and perform a thorough inspection for misalignment or damaged components. Use manufacturer-recommended diagnostic tools to measure pressure and flow rates at idle and full load, and compare results to spec values to confirm proper operation. Check the venting and cooling of the hydraulic pump and motors, ensuring there is adequate airflow and that cooling fins are not obstructed. If degradation or overheating is detected, address cooling efficiency, inspect for inadequate lubrication, and replace worn seals or worn gears as required to prevent further damage to the system.
Proper drive belt and pulley alignment is critical for efficient power transmission and to minimize belt wear. Begin by visually inspecting belts for cracking, glazing, fraying, or oil contamination, and replace any compromised belts promptly. Align pulleys so that the belt rides flat within the groove and maintains the correct tension as specified by the OEM guidelines. Use a belt tension gauge if provided by the manufacturer to verify the correct tension, and adjust tension gradually to avoid over-tightening which can accelerate bearing wear. After alignment and tension adjustments, rotate the drive system by hand to feel for unusual resistance or pulsing that might indicate a misalignment or a bent pulley. Finally, reinstall guards and covers securely to prevent debris ingress and ensure safe operation during future service intervals.
The SCAG SWZV36A-16KAI mower deck and cutting system are precision components designed to deliver clean, consistent harvests of grass and turf. Regular inspection of deck geometry ensures optimal cutting height, even blade contact, and uniform turf appearance. Start by checking the mower’s deck travel and side-to-side alignment, comparing each edge against manufacturer specifications. Small deviations can cause uneven cuts or localized wear, so address any misalignment promptly with proper shims, mounting hardware, or adjustment of the deck hangers. Always ensure the mower is on a level surface and the blades are not engaged during alignment to maintain safety and accuracy. Document any measurements and corrections so future maintenance can build on a reliable baseline.
Deck geometry is influenced by the relationship between blade tips and the ground plane. Verifying that the deck is level from front to rear and side to side helps preserve even cutting heights across the entire width of the mower. Use a precise deck gauge or a flat, level surface to test deck level at multiple points. If you observe a inconsistent blade gaps or a tilt, adjust the deck lift arms, hydraulic links, or anti-scalp rollers as specified in the service guidelines. After any adjustment, re-check levels to confirm that changes have achieved the intended geometry. Regular monitoring prevents scalping and improves overall cut quality.
Blades and spindle maintenance are critical to maintaining cutting performance and safety. Inspect each blade for nicks, cracks, or excessive wear, and replace blades that show any signs of damage or bending. When removing or reinstalling blades, always follow the correct torque specifications for the blade bolts and use a torque wrench to prevent uneven blade loading. Spin the spindles by hand to listen for roughness, binding, or unusual play, which could indicate worn bearings or misaligned spindle housings. Lubricate accessible spindle bearings if the manufacturer specifies lubrication intervals, and replace seals if you detect leaks. Keeping blades sharp and spindles in good condition yields cleaner cuts and reduces engine strain due to excessive resistance.
Deck belt replacement and tensioning require careful attention to ensure efficient power transfer and consistent blade speed. When replacing a deck belt, first disconnect power and ensure all moving parts have stopped. Inspect belts for cracking, fraying, or glazing, and replace any belt showing significant wear. After installation, refer to the tensioning procedure, typically involving a specified belt deflection at the center span or a particular tension measurement. Use the proper pulley alignment checks to prevent belt wear and mis-tracking, which can cause premature failure or uneven cutting. Re-tension belts after the first few hours of operation, then periodically according to the service schedule, to maintain stable blade RPMs and optimal mowing performance.
Cooling, exhaust, and emissions maintenance
The cooling system in the SCAG SWZV36A-16KAI is critical to maintaining optimal engine temperatures and prolonging component life. Begin with a thorough visual inspection of the radiator, shrouds, hoses, and clamps for signs of wear, cracks, or leaks. Check the coolant level in the reservoir and radiator when the engine is cool, and top up with the manufacturer-recommended mixture if necessary. If you notice any discoloration, sediment, or a sweet smell indicating coolant degradation, perform a coolant flush and replace with the correct specification fluid. During operation, monitor temperature gauges and listen for unusual fan noises or overheating indicators, which may signal a blocked cooling path or a failing water pump. Regularly clean the cooling fins and air intake to prevent debris buildup that can impede airflow and reduce cooling efficiency.
Exhaust and muffler inspection is essential for both performance and environmental compliance. Start by inspecting the exhaust path for any signs of rust, cracks, or leaks that could allow exhaust gases to escape into the engine bay or operator area. Ensure the muffler is securely mounted and free of holes or heavy corrosion that could affect noise suppression and emission control. Inspect all mounting hardware and hangers for looseness, which can lead to excessive vibration and potential exhaust system damage. Check for any restrictions or blockages in the exhaust outlet, such as dirt, grass, or foreign objects, and remove them with the engine off and cool. When inspecting emissions-related components, verify that the exhaust system maintains proper backpressure and that oxygen sensors, if equipped, are securely connected and free from contamination. Perform a diagnostic scan if available to confirm that emissions readings fall within the manufacturer’s specified range and address any codes promptly to prevent long-term engine degradation.
The SCAG SWZV36A-16KAI requires a disciplined preventive maintenance routine to ensure reliable operation and optimal performance. Daily tasks should focus on core safety and functional checks, such as inspecting for obvious signs of wear, leaks, or damage, verifying fluid levels, and confirming that guards and safety switches are intact and operational. Operators should also ensure the machine is clean, removing debris from the cutting deck area and discharge chutes to prevent buildup that could affect cutting performance or engine cooling. It is essential to check battery connections if applicable, ensuring terminals are clean and secure, and to note any irregular noises, vibrations, or changes in engine response during normal operation. Adhering to these daily checks can help catch issues early and reduce the risk of unexpected downtime on the job site.
Weekly maintenance expands the scope to include more thorough inspections and adjustments. A visual inspection of belts, pulleys, and blade hardware is important to identify wear, cracks, or looseness that could affect cutting efficiency or safety. Check air filters and replace or clean them according to the manufacturer’s recommendations to maintain proper engine performance and fuel efficiency. Inspect the cooling system, including the radiator and hoses, for signs of blockage or leakage, and ensure cooling fins are free of debris. Lubrication should be performed on all user-serviceable joints and pivot points, and any seized fasteners should be addressed with proper torquing procedures. Conduct a thorough test of all electrical systems, including lighting and safety interlocks, to confirm reliable operation before returning the machine to service.
Monthly maintenance should be more comprehensive, combining inspection, adjustment, and part replacement as necessary. Replace or clean the air cleaner element to maintain optimal engine performance, and inspect the fuel system for signs of varnish or sediment that could indicate degradation or contamination. Examine the hydraulic system for leaks, check fluid levels, and verify that hoses and fittings are secure and free from abrasion. Perform a detailed inspection of the cutting deck, including blade balance, spindle bearings, and blade bolts, and replace worn components to prevent out-of-balance operation or blade failure. Inspect tires or tracks for wear, proper inflation, and alignment, and recalibrate any operator controls to ensure precise response to inputs. Document all findings and actions in the service log for traceability and future planning.
Seasonal service recommendations address changes in operating conditions and storage periods. Prior to peak season, perform a comprehensive engine tune-up if applicable, including spark plug replacement, fuel system cleaning, and a thorough check of ignition timing or electronic control parameters. Prepare the cooling system for temperature extremes by inspecting hoses, clamps, and the thermostat, and ensure the radiator is clean and free of obstructions. For equipment stored over the off-season, perform a full system purge of fuel, update protective coatings, and lubricate all moving parts to inhibit rust and corrosion. Reassemble any disassembled components with fresh fasteners if needed and verify that all safety devices are functional, including seat or operator presence switches and blade-stop mechanisms. Schedule professional service if unusual performance issues are detected during seasonal checks, and maintain an updated inventory of spare parts to minimize downtime when replacements are required.
Record keeping and service logs are essential for long-term reliability and resale value. Maintain a chronological history of all inspections, replacements, and adjustments, noting the date, operator, and observed condition. Use standardized checklists to ensure consistency across service events and enable quick trend analysis to identify recurring issues. Store receipts, part numbers, and warranty information in a dedicated folder or digital repository accessible to service personnel. Review the logs periodically to plan proactive maintenance intervals and to forecast parts stock or technician availability for upcoming seasons. Ensuring accurate and complete documentation helps support warranty claims, improves diagnostics, and facilitates efficient handovers between operators and technicians.
Disassembly, reassembly, and tuning procedures for the SCAG SWZV36A-16KAI require a methodical approach to ensure safety and preserving the integrity of all components. Begin by disconnecting the spark plug lead and removing the battery or power source where applicable to prevent accidental cranking. Establish a clean, well-lit workspace with labeled containers for fasteners and small parts. Document each step with photos or notes as you proceed, because many assemblies use specific torque values and orientation that are critical for correct function. When handling the cutting deck, use proper lifting methods and support stands to avoid personal injury or deck damage. Wear appropriate PPE, including safety glasses and gloves, to protect yourself from sharp edges, hot components, and moving parts during disassembly.
Safe disassembly guidelines emphasize a controlled, stepwise process that minimizes risk to you and to the machine. Begin by removing the obvious removable covers and shields to access underlying hardware. Keep track of all fasteners by size and location, as different sections may use similar screws but with subtle length differences. Use the correct tools, avoiding improvised devices that could strip fasteners or damage parts. As you expose critical systems such as the fuel line, carburetion, and ignition components, pause to verify engine is not hot and that fuel is contained in a safe manner. When disconnecting fuel or electrical connections, take care to note the exact mating orientation to ensure proper reassembly. Finally, verify that each disconnected component is secured and labeled before moving to the next subsystem to prevent misassembly.
Component reassembly sequencing is essential to restore reliable operation after maintenance. Start with the foundational chassis and subassemblies, ensuring the frame mounts are clean and free of debris before applying any bolts. Reinstallthe drive and linkage components in the same relative positions they occupied during disassembly, confirming that control levers actuate smoothly with no binding. Reconnect electrical harnesses with attention to routing, zip-tying where appropriate to prevent chafing, and verify that solenoids and sensors seat properly in their housings. Reattach the fuel system with fresh lines or clamps if inspection indicates wear, ensuring there are no leaks prior to test operation. Finally, reinstall covers and guards, confirming that all fasteners are tightened to the specified torque values from the service data.
Calibration and testing after reassembly focus on verifying safe, accurate performance and identifying any leak or misalignment issues before normal operation. Begin by performing a static inspection to ensure there are no loose bolts, cracked components, or unsecured wiring. Conduct a compression and ignition check according to the manufacturer’s specifications, listening for uniform operation and absence of abnormal noises. If the mower features an idle and throttle calibration procedure, follow the exact sequence to synchronize the carburetor or EFI settings with the engine ECU, observing any recommended warm-up cycles. After calibration, perform a controlled functional test on a stable surface, checking for smooth acceleration, consistent RPMs, and proper engagement of the PTO and drive systems. Finally, recheck all fluid levels, including fuel, oil, and coolant if applicable, and confirm that no leaks or hot spots appear during the run test.
Part identification and order guidance. Accurate part identification is essential to ensure compatibility and maintain performance. Begin by verifying the model and serial number on the SCAG SWZV36A-16KAI unit before sourcing any replacement components. Use the official parts diagram and bill of materials to cross-check part numbers against your machine’s configuration. When ordering, include the complete part number, quantity, and any applicable revisions or batch codes to avoid substitutions that could affect fitment or warranty coverage. For components subject to wear, such as belts, pulleys, and filters, consider standard service life and operating conditions to determine replacement timing. Maintain a current parts catalog on your service bench for quick reference, and document any substitutions with notes for future maintenance cycles. If a part is available only through SCAG-authorized distributors, request an official sourcing channel to ensure genuine parts and support data remain intact.
Common replacement intervals. Establishing practical replacement intervals based on usage helps prevent unexpected downtime and preserves operator safety. Start with the manufacturer’s recommended service intervals found in the product data sheet and adapt them to your maintenance regime depending on workload and environment. Regular components to inspect include filters, spark plugs, air intake elements, and fuel system components, as these directly influence engine efficiency and emissions performance. For metal wear parts like blades, belts, and drive components, schedule inspections at defined run-hour milestones and seasonal shutdowns, replacing any worn items proactively. Document the intervals in a maintenance log, including inspection results and any corrective actions taken, so you can refine future schedules. In high-use or harsh conditions, shorten intervals by monitoring performance indicators such as unusual vibration, loss of power, or abnormal engine noise, which may precede a failure.
Special tools and service aids. Access to specialized tools and service aids can significantly reduce repair time and improve diagnostic accuracy. Gather the correct torque wrenches, pullers, and calibration tools specified for the SWZV36A-16KAI when performing fastener or alignment work, and ensure they are calibrated to the manufacturer’s tolerance. For fuel and ignition system servicing, use appropriate diagnostic meters, compression testers, and smoke machines as recommended by SCAG’s service guidelines to isolate issues efficiently. Keep high-quality extraction and installation aids on hand for belts and pulleys to minimize the risk of damage to components during replacement. When working with electrical systems, verify continuity and insulation with a multimeter rated for the equipment’s voltage class, and always disconnect power before servicing. Store service aids in labeled, corrosion-resistant containers to preserve their accuracy and longevity, and replace any worn or damaged tools promptly to maintain a safe and effective maintenance workflow.