13/1
1/14 M40-2 (1500g)_EN
ENGLISH
ENGLISH
Problem
Possible cause
Solution
ENGINE
The motor does not start up
1) Start-up switch (I6) (where it is assembled) in incor-
rect position
2) Emergency button (L5) pressed
3) Preheating (where it is assembled)
4) Engine control unit or starting key faulty.
5) Battery low
6) Battery cable terminals loose or corroded
7) Start-up motor defective
8) No fuel or air in feed circuit
9) Malfunction on feed circuit: defective pump, injector
blocked, etc.
10) Air filter or fuel filter clogged
11) Air in the gasoil filter.
12) Motor stopping device defective
13) Malfunction on electrical power circuit on generator
control panel
1) Check position
2) Unblock
3) Lacking or insufficient preheating phase for
sparkplugs.
Malfunction in circuit: repair.
4) Replace
5) Recharge or replace.
Check the battery charge circuit on motor and
automatic panel.
6) Tighten and clean. Replace if corroded.
7) Repair or replace.
8) Refill tank, un-aerate the circuit.
9) Ask for intervention of Service Department.
10) Clean or replace
11) Take the air out filling the filter with gasoil.
12) Replace.
13) Check and repair.
The motor does not accelerate.
Inconstant speed.
1) Air filter or fuel filter clogged.
2) Malfunction on feed circuit: defective pump, injector
blocked, etc.
3) Oil level too high.
4) Motor speed regulator defective.
1) Clean or replace.
2) Ask for intervention of Service Department.
3) Eliminate excess oil.
4) Ask for intervention of Service Department
Black smoke
1) Air filter clogged.
2) Overload.
3) Injectors defective. Injection pump requires calibra-
tion.
1) Clean or replace
2) Check the load connected and diminish.
3) Ask for intervention of Service Department.
White smoke
1) Oil level too high.
2) Motor cold or in prolonged operation with little or no
load.
3) Segments and/or cylinders worn out.
1) Eliminate excess oil.
2) Insert load only with motor sufficiently hot
3) Ask for intervention of Service Department.
Too little power provided by motor.
1) Air filter clogged.
2) Insufficient fuel distribution, impurities or water in
feed circuit.
3) Injectors dirty or defective.
1) Clean or replace.
2) Check the feed circuit, clean and refill once again.
3) Ask for intervention of Service Department.
Low oil pressure
1) Oil level insufficient
2) Air filter clogged.
3) Oil pump defective.
4) Alarm malfunction.
1) Reset level. Check for leaks.
2) Replace filter.
3) Ask for intervention of Service Department.
4) Check the sensor and electrical circuit.
High temperature
1) Overload
2) Insufficient ventilation.
3) Insufficient coolant liquid (Only for water cooled
motors)
4) Water radiator or oil clogged (where it is assembled)
5) Water circulating pump defective (Only for water
cooled motors)
6) Injectors defective. Injection pump requires calibra-
tion
7) Alarm malfunction
1) Check the load connected and diminish.
2) Check the cooling vent and relative transmission
belts
3) Restore level. Check for leaks or breakage in the
entire cooling circuit, pipes, couplings, etc.
4) Clean cooling fins on radiator
5) Ask for intervention of Service Department
6) Ask for intervention of Service Department
7) Check the sensor and electrical circuit
M
40.2
TROUBLESHOOTING
REV
.3-07/06
27
Summary of Contents for CD4R90119003
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