OPERATION & MAINTENANCE MANUAL STE35SR
Engine
Always contact your CFG distributor when dealing with these items.
In cases of problems or causes which are not listed below, contact your CFG distributor for
repairs.
Problem Main causes Remedy
Engine oil pressure
monitor lights up
Engine oil pan oil level is low
(sucking in air)
Clogged oil filter cartridge
Defective tightening of oil pipe,
pipe joint, oil leakage from
damaged point
Defective engine oil pressure
sensor
Defective monitor
Add oil to specified level,
see CHECK BEFORE
STARTING
Replace cartridge, see
EVERY 500 HOURS
SERVICE
(Check, repair)
(Replace)
Steam spurts out from
top of radiator (pressure
valve)
Coolant level low, leakage of
water
Dirt or scale accumulated in
cooling system
Clogged radiator fins or
damaged fins
Defective thermostat
Loose radiator filler cap
(high-altitude operations)
Defective water level sensor
Check, add coolant, repair
Change coolant, flush
inside of cooling system,
(Replace thermostat)
Tighten cap or replace
packing
(Replace sensor)
Radiator coolant level
monitor lights up
Even after long hours of
operation, radiator
coolant level monitor
lights up
Defective thermostat ( Replace thermostat)
Engine does not start
when starting motor is
turned
Lack of fuel
Air in fuel system
Defective fuel injection pump or
defective nozzle
Starting motor cranks engine
sluggishly
Engine pre-heating monitor
does not light up
Defective compression
Add fuel, see CHECK
BEFORE STARTING
Repair place where air is
sucked in
(Replace pump or nozzle)
See ELECTRICAL
SYSTEM
See ELECTRICAL
SYSTEM
(Adjust valve clearance)
Exhaust gas is white or
blue
Too much oil in oil pan
Improper fuel
Start the engine suddenly
accelerated in the cold days
Set oil to specified level,
see CHECK BEFORE
STARTING
Change to specified fuel
Avoid suddenly
acceleration before the
warm-up operation is
completed
Exhaust gas
occasionally turns black
Clogged air cleaner element
Defective nozzle
Defective compression
Clean or replace
(Replace nozzle)
(See defective compression
above)
Combustion noise
occasionally make
breathing sound
Defective nozzle (Replace nozzle)
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