Caterpillar — Walk-Around Inspection
Maintenance · Engine compartment
From a Caterpillar owner's manual covering: C3.3, C3.3 Rental Generator Set, C4.4, C4.4 Rental Generator Set, D4D1-Up, GLE1-Up, N3X1-UP, N4R1-Up, N4X1-Up, X3B1-UP, XYC1-Up, XYD1-Up. Check it applies to your exact model before use.
Applies to: Caterpillar C3.3, Caterpillar C4.4
Before you start
- Accumulated grease and/or oil on an engine or deck is a fire hazard
Procedure
- Inspect for oil leaks, coolant leaks, loose bolts, worn belts, loose connections and trash buildup.
- Ensure guards are in the proper place. Repair damaged guards or replace missing guards.
- Wipe all caps and plugs before the engine is serviced.
- Ensure cooling lines are properly clamped and tight. Check pipes for leaks.
- Inspect the water pump for coolant leaks.
- Inspect lubrication system for leaks at crankshaft seals, oil pan, oil filters and valve cover.
- Inspect the fuel system for leaks and loose fuel line clamps.
- Inspect air inlet piping and elbows for cracks and loose clamps.
- Inspect the alternator belt and accessory drive belts for cracks, breaks or damage.
- Drain water and sediment from fuel tanks daily.
- Inspect wiring and wiring harnesses for loose, worn or frayed wires.
- Inspect the ground strap and engine-to-frame ground strap for good connection and condition.
- Check battery condition and electrolyte level unless a maintenance free battery is installed.
- Check gauge condition. Replace gauges that are cracked or cannot be calibrated.
Specs & values
- Belts for multiple groove pulleys must be replaced as matched sets
Full service-parts list: Caterpillar C3.3 →, Caterpillar C4.4 →
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.