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Symptom
Oil pressure is low
Air pressure is low
Not enough engine power
Cause
Improper engine oil viscosity
Engine oil level too low
Engine inner components
faulty
Meter, indicator/warning
lights, or switches faulty
Air compressor faulty
Air leaking from pipes and
hoses
Air governor faulty
Parking brake not fully
released
Brake dragging
Air cleaner clogged
Fuel filter clogged
Engine control system faulty
Engine faulty
DPF clogged
Driving and Operating
Corrective Action
Change to an oil with proper
viscosity
Add engine oil
Make sure it is fully released
125
Reference
See Engine Oil 0 195
See Engine Oil 0 195
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