ELECTRICAL SYSTEM
SECTION 10B. FAILURE ANALYSIS
10B-1
10B
PROBLEM PROBABLE CAUSE REMEDY
1. Engine will not turn over a. Battery dead. a. Charge or replace (Section 10D).
when ignition switch is
b. Parking brake not set. b. Set brake.
engaged.
c. Implement switch not in the OFF c. Push into OFF position.
position.
d. 10 amp shut-off system circuit d. Reset/test (Section 10J).
breaker tripped.
e. 50 amp tractor circuit breaker e. Reset/test (Section 10J).
tripped.
f. Faulty starter solenoid. f. Test (Section 10F).
g. Faulty ignition switch. g. Test (Section 10G).
h. Faulty starter. h. Test (Section 10F).
i. Faulty wiring or bad electrical i. Test (Section 10C).
ground.
2. Engine turns over, but a. Battery low. a. Charge or replace (Section 10D).
will not start.
b. Glow plugs not set. b. Set glow plugs for 7 seconds
before starting. Test/replace
(Section 10L).
c. Faulty glow plug switch. c. Test (Section 10G).
d. 30 amp implement/fuel circuit d. Reset/test (Section 10J).
breaker tripped.
e. Faulty fuel solenoid relay. e. Test/replace (Section 10H).
f. Faulty fuel solenoid. f. Test/replace (Section 10I).
g. No fuel/obstructed fuel supply. g. Check fuel level and/or obstruc-
tion. Purge system (Section 3D).
h. Internal engine problem. h. Refer to Engine Manufacturer’s
Manual.
i. Faulty glow plug relay. i. Test/replace (Section 10H).
3. Engine starts, but shuts a. Faulty fuel solenoid. a. Test/replace (Section 10I).
down when ignition
b. Faulty ignition switch. b. Test/replace (Section 10G).
switch is released.
c. Fuel solenoid linkage misadjusted. c. Adjust (Section 10I).
4. Battery does not charge. a. Bad battery. a. Replace.
b. 50 amp glow plug/light circuit b. Test (Section 10J).
breaker tripped.
c. No alternator output. c. Test (Section 10E).
d. Faulty regulator. d. Test (Section 10E).
e. Faulty time delay relay. e. Test/replace (Section 10H).
5. Battery over charges. a. Bad battery. a. Replace.
b. Faulty regulator. b. Test (Section 10E).
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