A detailed Crawler Crane DAILY preventive maintenance checklists

1. Visual Inspection

  • Look for any oil or fluid leaks under the crane and around hydraulic components.
  • Check the crane structure for dents, cracks, or other signs of damage.
  • Inspect the boom for wear, cracks, and ensure attachments are secure.
  • Ensure all safety decals and labels are clear and readable.
  • Examine tracks for wear, cracks, or accumulation of debris.
  • Check undercarriage for signs of damage or excessive wear.
  • Look for loose bolts, nuts, and fasteners; tighten as needed.
  • Inspect hydraulic hoses and connections for wear, leaks, or damage.
  • Check counterweights for secure positioning and any visible damage.
  • Inspect the operator's cabin for cleanliness and unobstructed visibility.
  • Ensure mirrors are intact, positioned correctly, and provide adequate view.
  • Examine outriggers and pads for cracks, deformation, or damage.
  • Verify access ladders and handrails are secure, undamaged, and functional.
  • Look for signs of corrosion on all metal components.
  • Inspect wiring for fraying, exposure, or other signs of wear.
  • Confirm that operational lights and indicators are working properly.

2. Fluid Levels

  • Locate the dipstick and remove it.
  • Wipe clean, reinsert, and remove again.
  • Check the oil level against the marks.
  • Inspect oil color and consistency.
  • Add oil if low; ensure proper type is used.
  • Locate the hydraulic fluid reservoir.
  • Check the level against the sight gauge.
  • Inspect fluid for discoloration or debris.
  • Add fluid if necessary; ensure correct type.
  • Report any signs of contamination.
  • Check the coolant reservoir level.
  • Inspect hoses and connections for leaks.
  • Look for any signs of coolant on the ground.
  • Ensure the coolant is at the correct concentration.
  • Add coolant if low, using the specified type.
  • Check the fuel gauge on the dashboard.
  • Inspect for any visible fuel leaks.
  • Refuel if below the recommended level.
  • Use the correct type of fuel.
  • Secure the fuel cap after refueling.
  • Locate the transmission dipstick.
  • Remove, wipe, and reinsert the dipstick.
  • Check fluid level and color.
  • Add transmission fluid if low.
  • Ensure the correct type of fluid is used.
  • Locate the brake fluid reservoir.
  • Check the fluid level against the markings.
  • Inspect for leaks around the reservoir.
  • Add brake fluid if necessary; use the specified type.
  • Ensure the cap is securely fastened.
  • Locate the power steering fluid reservoir.
  • Check fluid level against the sight gauge.
  • Inspect for any signs of leaks.
  • Look for contamination or color changes.
  • Add fluid if needed, using the correct type.
  • Locate the windshield washer fluid reservoir.
  • Check the fluid level; add if low.
  • Use a suitable washer fluid solution.
  • Inspect the hoses for leaks.
  • Ensure the cap is securely closed.
  • Locate the differential and gear oil reservoirs.
  • Check fluid levels against the dipstick or sight glass.
  • Inspect for signs of contamination or leaks.
  • Add oil if levels are low; ensure correct type.
  • Securely close all caps after inspection.
  • Check labels on all fluid reservoirs.
  • Ensure each reservoir is clearly marked.
  • Inspect caps to ensure they are tightly closed.
  • Replace any missing labels.
  • Document any discrepancies in the maintenance log.
  • Inspect all hoses for wear or damage.
  • Check fittings for tightness and leaks.
  • Look for puddles or wet spots underneath.
  • Document any leaks found for repair.
  • Ensure all connections are secure.
  • Use a maintenance logbook or software.
  • Document each fluid level checked.
  • Note any discrepancies or actions taken.
  • Ensure accuracy and completeness of entries.
  • Review logs regularly for trends.

3. Electrical System

  • Check voltage levels with a multimeter.
  • Inspect battery terminals for corrosion.
  • Ensure connections are tight and secure.
  • Clean any corrosion found on terminals.
  • Verify electrolyte levels if applicable.
  • Examine all accessible wiring for wear.
  • Look for exposed wires or insulation damage.
  • Check for signs of overheating or burns.
  • Ensure wires are properly secured and supported.
  • Report any damaged wiring for immediate repair.
  • Test each light individually using the control panel.
  • Inspect indicator lights for clarity and brightness.
  • Replace any non-functioning bulbs immediately.
  • Ensure all warning lights activate during tests.
  • Document any lights that require servicing.
  • Test each emergency stop switch by activating it.
  • Ensure crane stops immediately upon activation.
  • Check for any physical damage to switches.
  • Confirm reset functionality after switch activation.
  • Replace any faulty emergency stop switches.
  • Check each fuse for continuity with a multimeter.
  • Look for discoloration or burn marks on fuses.
  • Test circuit breakers by flipping on and off.
  • Replace any damaged fuses or tripped breakers.
  • Ensure all fuses and breakers are correctly rated.
  • Gently wipe down the control panel with a cloth.
  • Use compressed air to remove dust from crevices.
  • Inspect for any loose wires or connections.
  • Check that all buttons and switches are functional.
  • Document any issues found during inspection.
  • Operate the hoist and swing motors through full range.
  • Listen for unusual noises during operation.
  • Check for smooth operation without stalling.
  • Inspect motor connections for tightness and corrosion.
  • Document any irregularities for further investigation.
  • Inspect connectors for signs of rust or oxidation.
  • Ensure all connections are tight and secure.
  • Clean any corroded connectors with appropriate cleaner.
  • Replace any damaged or severely corroded connectors.
  • Verify that connectors are properly rated for application.
  • Turn on the crane and access the onboard system.
  • Check for any displayed error codes.
  • Consult the manual for troubleshooting guidance.
  • Reset the system if necessary and retest.
  • Document any persistent errors for service personnel.
  • Check grounding connections for tightness.
  • Inspect ground wires for signs of damage.
  • Test grounding continuity with a multimeter.
  • Ensure all components are properly grounded.
  • Report any grounding issues for immediate attention.
  • Test each remote control for responsive operation.
  • Check battery levels and replace if low.
  • Inspect for physical damage to remotes.
  • Ensure proper pairing with the crane system.
  • Document any remotes that require servicing.
  • Inspect the harness for loose or damaged sections.
  • Check for proper routing away from moving parts.
  • Ensure all clamps and ties are secure.
  • Look for signs of abrasion or wear on the harness.
  • Report any issues found for corrective action.
  • Activate alarms manually and listen for sound.
  • Check visual indicators for functionality.
  • Simulate overload conditions to test responses.
  • Inspect wiring to alarms for integrity.
  • Document any alarms that do not function properly.
  • Check that all components have clear labels.
  • Re-label any components that are unclear or missing.
  • Ensure labels are securely attached and not fading.
  • Verify that labeling corresponds with schematics.
  • Document any labeling discrepancies for correction.

4. Operational Checks

  • Engage the main hoist and auxiliary winch separately.
  • Observe for any unusual noises or vibrations.
  • Check the lifting speed and responsiveness.
  • Ensure both winches can lift the rated load effectively.
  • Rotate the crane 360 degrees slowly.
  • Listen for any grinding or unusual sounds.
  • Observe for any jerky movements or stalling.
  • Ensure the swing speed is consistent and responsive.
  • Extend and lock all outriggers fully.
  • Inspect the stability indicators for correct readings.
  • Look for any signs of wear or damage.
  • Ensure the ground is level and firm.
  • Power on the crane and check the display.
  • Simulate various load positions and weights.
  • Verify that the indicator responds accurately.
  • Look for any error messages or malfunctions.
  • Engage the travel function slowly.
  • Check for smooth acceleration and braking.
  • Test the steering responsiveness in both directions.
  • Look for any unusual noises during operation.
  • Extend and retract the boom fully.
  • Listen for any unusual sounds during movement.
  • Check for smooth operation without delays.
  • Inspect hydraulic lines for leaks or damage.
  • Engage the jib and check for full range of motion.
  • Listen for any grinding or resistance.
  • Verify that the jib locks securely in position.
  • Ensure smooth operation during extension and retraction.
  • Operate each lever and pedal individually.
  • Check for smooth movement without sticking.
  • Listen for any unusual noises during operation.
  • Ensure all controls return to neutral position properly.
  • Engage all operational controls.
  • Activate emergency stop and observe equipment response.
  • Ensure all movements cease immediately.
  • Reset the system and check for normal operation.
  • Simulate a two-block condition carefully.
  • Observe the system for immediate disengagement.
  • Listen for any alarms or alerts.
  • Verify that all systems return to normal post-test.
  • Power on the crane and check all lights.
  • Test each indicator by simulating conditions.
  • Ensure all warning lights activate appropriately.
  • Look for any burnt-out bulbs or malfunctioning displays.
  • Attach a known weight to the hook.
  • Lift the load slowly and monitor stability.
  • Check for any signs of strain or failure.
  • Document the results and ensure compliance with limits.
  • Engage the crane with a load and test brakes.
  • Check for responsive stopping without delays.
  • Listen for any unusual sounds during braking.
  • Inspect braking mechanism for any signs of wear.
  • Inspect the operator's view from the cabin.
  • Adjust mirrors for maximum visibility.
  • Ensure no obstructions are present in the line of sight.
  • Check for cleanliness of windows and mirrors.
  • Inspect all hydraulic lines and connections.
  • Check for any visible leaks or drips.
  • Monitor pressure gauges during operation.
  • Ensure readings fall within acceptable ranges.
  • Apply load to the winch and engage the brake.
  • Verify that the load holds without slipping.
  • Release the brake and check for smooth operation.
  • Listen for any unusual sounds during engagement.

5. Safety Equipment

  • Examine each hook for cracks or deformations.
  • Check slings for cuts, frays, or discoloration.
  • Inspect lifting attachments for proper functioning.
  • Ensure load ratings are visible and unaltered.
  • Replace any worn or damaged components immediately.
  • Test limit switches for proper engagement and disengagement.
  • Verify alarm sounds at appropriate levels.
  • Inspect wiring and connections for wear or damage.
  • Document any malfunctions and schedule repairs.
  • Confirm that all safety devices are easily accessible.
  • Ensure fire extinguishers are fully charged and inspected.
  • Verify that first aid kits are stocked and sealed.
  • Check expiration dates on items within the kits.
  • Confirm signage indicates the locations of both.
  • Document any deficiencies for immediate correction.
  • Inspect helmets, gloves, and vests for damage.
  • Check that safety goggles are clear and scratch-free.
  • Ensure harnesses and lanyards are intact and functioning.
  • Verify availability of ear protection if needed.
  • Replace any defective or missing PPE immediately.
  • Examine each hook for cracks or deformations.
  • Check slings for cuts, frays, or discoloration.
  • Inspect lifting attachments for proper functioning.
  • Ensure load ratings are visible and unaltered.
  • Replace any worn or damaged components immediately.
  • Test limit switches for proper engagement and disengagement.
  • Verify alarm sounds at appropriate levels.
  • Inspect wiring and connections for wear or damage.
  • Document any malfunctions and schedule repairs.
  • Confirm that all safety devices are easily accessible.
  • Ensure fire extinguishers are fully charged and inspected.
  • Verify that first aid kits are stocked and sealed.
  • Check expiration dates on items within the kits.
  • Confirm signage indicates the locations of both.
  • Document any deficiencies for immediate correction.
  • Inspect helmets, gloves, and vests for damage.
  • Check that safety goggles are clear and scratch-free.
  • Ensure harnesses and lanyards are intact and functioning.
  • Verify availability of ear protection if needed.
  • Replace any defective or missing PPE immediately.
  • Check for the presence of warning and instruction signs.
  • Ensure signs are clean and not obstructed.
  • Verify that signage complies with local regulations.
  • Replace any faded or damaged signage promptly.
  • Document the condition and placement of all signs.
  • Press each emergency stop button to verify operation.
  • Check for immediate cessation of crane functions.
  • Inspect button casing for damage or wear.
  • Document any buttons that fail to operate.
  • Ensure all operators are aware of their locations.
  • Check harnesses for signs of wear or damage.
  • Inspect all lanyards for frays or cuts.
  • Ensure buckles and hooks function correctly.
  • Confirm proper storage when not in use.
  • Replace any compromised equipment before operation.
  • Verify that all operators possess valid certifications.
  • Check training records for completion dates.
  • Ensure ongoing training sessions are scheduled.
  • Document any training gaps for follow-up.
  • Confirm crew members understand safety protocols.
  • Inspect guardrails for stability and integrity.
  • Ensure barriers are properly positioned around hazards.
  • Verify compliance with safety regulations.
  • Replace any missing or damaged sections.
  • Document the condition of all safety barriers.
  • Examine current safety procedures for relevance.
  • Update emergency response plans as needed.
  • Ensure all crew members are informed of changes.
  • Conduct drills to reinforce updated procedures.
  • Document all revisions and distribute accordingly.
  • Check that load charts are up-to-date and accessible.
  • Inspect operating manuals for wear or damage.
  • Ensure both are stored in the operator's cab.
  • Replace any missing or illegible documents.
  • Confirm that crew members are familiar with contents.
  • Inspect for loose or missing panels and fittings.
  • Ensure visibility is unobstructed by debris.
  • Check for operational controls functionality.
  • Verify that the cab is clean and organized.
  • Document any hazards and schedule repairs.
  • Check that all lights are operational and bright.
  • Inspect wiring and connections for damage.
  • Ensure light placement provides adequate visibility.
  • Replace any non-functional lights immediately.
  • Document the condition of all lighting equipment.
  • Test radios and communication devices for clarity.
  • Check that spotters are trained and equipped.
  • Inspect auxiliary devices for physical damage.
  • Ensure all equipment is easily accessible.
  • Document any issues for prompt resolution.
  • Evaluate ground conditions for softness or hazards.
  • Check stability of the crane setup area.
  • Document assessments in the maintenance log.
  • Ensure no nearby obstructions may affect operations.
  • Review stability assessments regularly.

6. Documentation

7. Final Walk-around

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