22 1310 3011 65
1 Unscrew the final filter element (1) from the adapter
head.
2 Clean the adapter head sealing surface. Lightly oil the
gasket of the new element and screw the latter onto
the header until the gasket is properly seated, then
tighten with both hands.
3 After replacing the final filter’s element, prime fuel
system with manual prime button (FU) located below
the fuel filter’s housing.
4 Check for fuel leaks once the engine has been
restarted.
6 Problem Solving
6.1 Problem Solving Chart
The chart helps to solve mechanical problems.
It is assumed that the engine is in good condition and that there
is adequate fuel flow to the filter and injection equipment.
? An electrical fault must be traced by an electrician.
Make sure that the wires are not damaged and that they are
clamped tight to their terminals.
6.2 Alternator Precautions
1 Never reverse the polarity of the battery or the alternator.
2 Never break any alternator or battery connections while
the engine is running.
3 When recharging the battery, disconnect it from the
alternator. Before using booster cables to start the
engine, be sure of the polarity and connect the batteries
positive to positive, negative to negative.
4 Never operate the engine without the main or voltage
sensing cables connected in the circuit.
Problem Possible faults Corrective actions
1. Lamps (H1, H2) do not
light up when switching
(S1) to ”l“ and applying
lamp test.
a. Discharged or defective
battery.
b. Loose battery cable(s) or
oxidized terminals.
c. Loose connection or
damaged wiring.
d. Contact switch (S1)
defective.
e. Circuit breaker defective.
a. Check electrolyte level and charge battery. If no cells are
shorted and battery is discharged, trace cause and
correct.
b. Check and correct as necessary.
c. Check wiring and connections, correct as necessary.
d. With (S1) switched in ” I “, check voltage between ground
and respectively each of the terminals of (S1). Voltage
must register at each of the terminals; if not, replace (S1).
e. Replace circuit breaker.
2. General alarm lamp (H2)
does not light up when
switching (S1) to “1”;
lamp (H1) lights up when
applying lamptest.
a. Lamp (H2) blown,
b. Alternator/regulator
defective.
a. Replace lamp.
b. Disconnect the wire from alternator terminal D+ and
connect it to terminal D-. If (H1) lights up, replace the
alternator; if not, test (S1); see remedy 1d.
3. Temperature alarm lamp
(H1) does not light up
when switching (S1) to
the “I“ position and
applying lamp test.
a. Lamp (H1) blown,
b. See fault 1d.
a. Replace lamp.
b. See 1d.
4. Starter motor does not
crank engine after
switching (S1) to “I”
a. Low battery output.
b. Start button (S1) defective.
c. Alternator output inlay (K4)
defective.
d. Start solenoid (KO) or
starter motor defective
a. See remedy 1a.
b. With (S1) in position “I”, check voltage between earth and
each of the terminals of (S1). Voltage must register at
each of the terminals; if not replace (S1).
c. Replace (K4).
d. Check start solenoid (K0). Have starter motor repaired.
Problem Possible faults Corrective actions
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