Diesel Gen-set Operation Instructions
85
controller, oil pressure sensor
replace them if necessary.
2
Machine oil is insufficient.
Fill machine oil.
3
Viscosity of machine oil decreases due to
high temperature, which reduces oil
pressure.
Clean cooling system and oil cooler.
4
Leakage of lubricating oil circuit of diesel
engine
Replace the leaking part.
5
Blocking of oil filter
Clean the oil filter, and replace filter
element if necessary.
6
Suction filter of oil pump is blocked.
Clean the suction filter.
7
The machine oil goes bad or is mixed with
other liquids, which decreases viscosity
and thereby reducing oil pressure.
Replace machine oil with method in
instructions.
8
Oil pump capacity is insufficient.
Replace oil pump.
9
Fit clearance between crankshaft and
bearing is too big due to wear and tear
after long-term use.
Replace main bearing and connecting rod
bearing.
6.
High coolant temperature
Serial
number
Cause
Elimination method
1
Coolant is insufficient.
Fill coolant to 5cm below the tank cover.
2
Fault of water pump
Contact with after-sales service personnel
to repair or replace.
3
Fault of thermostat
Contact with after-sales service personnel
to repair or replace.
4
Hose is damaged.
Replace the connecting hose.
5 Radiator
is
blocked.
Clean the radiator. (See Chapter 9 for
method)
7.
Fuel consumption is too high
Serial
number
Cause
Elimination method
1
Fault of fuel injector
Contact with after-sales service personnel
to repair or replace.
2
Poor quality of diesel
Select fuel of appropriate trademark.
3
Air intake system is blocked.
Clean intake manifold and air filter, and
replace them if necessary.
4
Exhaust back pressure is too high.
Clear the carbon deposit in exhaust
manifold and silencer.
5
Turbocharger is dirty.
Clean the turbocharger.
6
Oil supply system is blocked.
Inspect and replace fuel filter, sealing
gasket and oil supply line.
