4
Failure cause and measures
4-6
Symptom Cause
Countermeasures
Insufficient free air delivery.
(1)Air filter element clogging
(2)Unloader valve cannot fully open
(3)Engine does not reach rated speed
Clean or change of
element
Call your nearest dealer
Call your nearest dealer
It is indicated that engine oil
pressure is abnormal, and
engine stops.
(1)Engine oil shortage
(2)Engine oil filter clogging
(3)Faulty oil pressure sensor
(4)Loose wiring, connectors and
disconnection.
Replenish oil
Change
Change
Check/Fasten
High water temp.
warning/shutdown
(1)Radiator clogging
(2)Faulty thermostat
(3)Faulty coolant temperature sensor
(4)Low coolant level
(5)Belt slippage
(6)Loose wiring, connectors and
disconnection.
Clean
Change
Change
Replenish
Re-adjust tension
Check/Fasten
Discharge air temp. sensor or
separator temp. sensor are
disconnected, cause the
engine to shutdown
(1)Coolant temperature sensor is
disconnected.
(2)Separator outlet air temperature
sensor is disconnected.
Repair/Change
Repair/Change
High separator temp
shutdown.
(1)Oil cooler clogging
(2)Oil filter clogging
(3)The discharge air temperature sensor
is defective
(4)Loosened or disconnected wiring or
connector
(5)Belt slippage
(6)Shortage of compressor oil
(7)Malfunction of by-pass valve
(8)discharge air temperature sensor is
disconnected
(9)Separator clogging
(Separator outlet air temperature
alarm. Displayed only during
irregular conditions.)
Clean
Change
Disassemble/Check
Check/Fasten
Re-adjust tension
Replenish oil
Check/Change
Repair/Change
Change
It is indicated that engine
speed down is abnormal, and
engine stops.
(1)Malfunction controller.
(2)Loose wiring connectors and
disconnection
(3)Shortage of feeding fuel caused due to
fuel filter and feed pump strainer
clogging.
(4)Air mixed in fuel line system
(5)Output reduction due to clogged
engine air filter
Change
Check/Retighten
Replace filter and/or clean
the strainer
Bleed the air
Clean and/or replace air
filter
Contact our office nearby or distributor if you find it difficult to repair by yourselves.
Refer to the engine operation manual for trouble concerning the engine.
Go
to
Discount-Equipment.com
to
order
your
parts
