Some common issues with caterpillar dozer parts include:
Wear and tear of tracks, idlers and sprockets:
The tracks, idlers (rollers) and sprockets bear the weight of the dozer and endure a lot of stress. They can wear out, break or fall apart over time with heavy use.
Hydraulic system problems:
Hydraulic pumps, motors, valves, cylinders can develop leaks, become inefficient or fail completely. This can affect lift, tilt, blade functions.
Turbocharger issues:
Turbochargers force air into the diesel engine for power. Turbo shaft damage, clogged intercoolers, oil leaks are common turbo problems.
Engine problems:
Heat exchanger damage, emission control system faults, injector issues, blown head gaskets, etc. can lead to power loss or complete engine failure.
Blade Issues:
The blade has to withstand impacts without cracking or detaching from the lift arms. Leaky seals, damaged lift links or a twisted/broken blade can occur.
Wheel and Rim Wear:
Excessive side to side movement can bend rims, break studs and damage tires beyond repair.
Electrical Problems:
Bad alternator, starter issues, faulty sensors, corroded wiring, etc. can cause the dozer to become immobilized.
Structural Wear:
Cracks form in the frame, housings and other structures due to metal fatigue over a long service life.
Fluid Leaks:
Besides hydraulic oil, leaks can develop for power steering, braking, lubrication fluids which then contaminate other components.
Safety Device Issues:
Things like seat switches, proximity switches, emergency brakes may fail to function properly which compromises safety.
Compliance Issues:
If the dozer is not up to date with current emission regulations or safety standards, it becomes non-compliant which limits use. Upgrades or retrofits become necessary.