Quarterly Wheel Loader Comprehensive Inspection Checklist
Operator Name
Date
/
Month
/
Day
Year
Date
Truck ID/Model
Odometer Reading
Exterior & Structural Inspection
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
No cracks or rust compromising truck frame or bed structure
Hydraulic lines, hoses, and fittings (including
hydraulic brake lines) free of wear, cracks, or bulges
Wheel Loader frame mounting and support brackets secure and crack-free
Mirrors, steps, and grab handles securely fastened and damage-free
Exhaust system secure, no leaks or excessive soot deposits
Reflective tape, safety decals, and company branding visible and legible
Cab & Safety Equipment
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Fire extinguisher fully charged, inspected, and accessible
First aid kit stocked and within expiration dates
Emergency triangles/flares present and functional
Seat belts, buckles, and retractors operational with no fraying
All dashboard warning lights verified operational
Interior clean and free of clutter, loose tools, or trash
Tires, Wheels & Suspension
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Tread depth above minimum legal requirement
Sidewalls free of cuts, bulges, or abnormal wear
Wheel lug nuts torqued to spec, no missing lugs
Suspension springs, shocks, and bushings in good condition
Air ride (if equipped) holds pressure and inflates evenly
Knuckle Wheel Loader Frame & Hitch System
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
All boom articulation joints greased and inspected
Hydraulic cylinders (including telescopic/extension) leak-free
Wheel Loader tracks straight and stable under load
Wheel Loader load rating and weight distribution label legible and present
Center articulation pins and bearings smooth and stable
Safety interlocks and limit switches functional
Bucket lift cylinders and safety stops deploy fully and hold position
Wheel Loader cargo or container properly attached and secured
Dump Bed & Tailgate (if equipped)
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Bed hinge points greased and secure
Tailgate latches and locks operational
Safety props tested to hold bed securely
Bed floor and sides checked for excessive wear or corrosion
Engine, Drivetrain & Fluids
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Engine oil level and condition acceptable
Coolant level and protection strength tested
Transmission fluid inspected (color/smell/level)
Power steering system fluid topped and checked
Fuel and air filters replaced as needed
Belts and pulleys aligned and in good condition
Engine mounts secure and undamaged
Brake & Air System
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Brake lining thickness within safe range
Parking brake holds under full load
Air tanks drained and checked for excess water
Air lines inspected for chafing, leaks, and wear
Electrical System
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Battery voltage good; terminals clean and tight
Alternator output within proper range
Work lights, beacons, and strobes operational
All wiring secure and free from visible damage
Final Operational Test
Inspection Item
Rows
Pass
Fail
Corrective Action Taken
Engine starts and idles properly
Transmission shifts smoothly with no slippage
Steering system responsive, no excessive play
Wheel Loader handles normally smoothly under load
No abnormal vibrations, noises, or overheating
Inspector Name
Signature
Next Scheduled Quarterly Inspection Date:
/
Month
/
Day
Year
Notes/Deficiencies Found
Submit
Should be Empty: