QUANCHAI N485D, Руководство по обслуживанию

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ANHUI QUANCHAI ENGINE CO., LTD
15. No oil pressure or too low oil pressure
Seque
nce
No. Position tested Normal Abnormal
1 Engine oil level
The engine oil level in the engine
oil casing is within the specified
scale range. Fill engine oil until its level gets
between the upper and lower scale
lines of the engine oil gauge.
2
Engine oil
pipeline
There is no leakage in the engine oil
pipeline. Check the engine oil pipeline and
remove faults found.
3
Engine oil
pipeline and oil
filter
The engine oil pipeline and the oil
filter are unblocked.
Clean the pipeline and filter, and
replace the oil filter element if
necessary.
4
Engine oil
pressure gauge
The engine oil pressure gauge
works normally upon testing. Check or replace the pressure
gauge.
5 Oil pump
The inner and outer rotors of the oil
pump are not worn and work
normally.
Repair or replace the rotors by a
professional maintenance factory.
6
Main bearing
shell, connecting
rod bearing shell
and
camshaft
bushing
The main bearing shell, connecting
rod bearing shell and camshaft
bushing are not worn, and have
normal clearance.
Check, adjust or replace parts.
7
Pressure-adjusting
spring of oil pump
There is no deformation or fracture
in the pressure-adjusting spring of
the oil pump.
Replace the pressure-adjusting
spring of the oil pump.
8 Oil pump gasket
The oil pump gasket is not
damaged.
Replace the gasket.
9 Fuel passage The fuel passage is unblocked. Clear the fuel passage.
16. Too high engine oil pressure
Seque
nce
No.
Position
tested
Normal Abnormal
1
Pressure-
limiting valve
of oil pump
The pressure-limiting valve of the oil
pump works normally, and the fuel
returns smoothly.
Check and adjust it.
2
Viscosity of
engine oil
The viscosity of engine oil meets the
operating requirements.
Use engine oil of specified grade,
and the warmed machine will then
reduce the viscosity automatically.