MMD Equipment 100S-6B4 - Manual (Page 53)

6. Maintenance/Adjustment
6-5
Symptom Cause Countermeasures
Engine oil
pressure lamp goes
on.
(1) Engine oil shortage.
(2) Engine oil filter clogging.
(3) Malfunction of engine oil pump
(4) Faulty oil pressure switch.
(5) Loosened or disconnected wiring or
connector.
Replenish oil
Change
Change
Change
Check/Fasten
Coolant
temperature lamp
goes on.
(1) Radiator clogging.
(2) Faulty thermostat.
(3) Faulty coolant temperature switch.
(4) Shortage of coolant.
(5) Slippage of fan belt.
(6) Looseness, disconnection of wiring or
connectors.
Clean
Change
Change
Replenish
Adjust tension
Check/Fasten
Discharge air
temperature lamp
goes on.
(1) Oil cooler clogging.
(2) Oil filter clogging.
(3) Faulty discharged air temperature
switch.
(4) Looseness, disconnection of wiring or
connectors.
(5) Slippage of fan belt.
(6) Shortage of compressor oil.
(7) Malfunction of by-pass valve.
Clean
Change
Check/Change
Check/Fasten
Adjust tension
Replenish oil
Fuel residual level
lamp goes on. (1) Fuel runs short.
(2) Malfunction of sending unit for fuel oil
level drop.
(3) Loosened and disconnected wiring
connection and connectors.
Add fuel oil
Inspect/replace
Inspect/retighten
Contact your nearest dealer if you find it difficult to repair by yourselves.
Refer to the engine operation manual for trouble concerning the engine.