MAINTENANCE
121
Lubricant - pressure excessively low
Cause
Solution
Oil level not correct
Check the level
Lubricant specifications unsuitable
Make sure a suitable lubricant is used.
Check contamination by fuel
Pressure gauge fault
Check the correct working
Oil filter clogged
Change the oil and filters. If operating in particularly heavy
duty conditions, increase the maintenance frequency.
Make sure a suitable lubricant is used
The oil priming pump pressure limiter valve is
blocked in the open position
Contact your dealer
The oil pump pressure limiter valve is blocked in
the open position
Contact your dealer
Oil pump worn
Contact your dealer
Lubricant
–
excessive pressure
Cause
Solution
Lubricant specifications unsuitable
Make sure a suitable lubricant is used.
Check contamination by fuel
Pressure gauge fault
Check the correct working
The oil pump pressure limiter valve is blocked in
the closed position
Contact your dealer
Coolant - leaks
Cause
Solution
Coolant level not correct
Check the level
Liquid leaks from radiator
Check the radiator, hoses and piping for leaks
Liquid leaks from engine
Check the engine for leaks from gaskets,
pipes or unions. Make sure all the clamps are tightened
properly and in good condition
Leaks from the head gasket
Contact your dealer
Engine head cracked or shows porosity
Contact your dealer
Leaks from lubricant passages in the base
Contact your dealer
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