TROUBLESHOOTING
Chart
The
following
troubleshooting chart
is
provided for assistance
in
locating
and
correcting problems
which
are
most
common.
Many
of
the
recommended
procedures
must
be
done
by
authorized Bobcat Service Personnel
only.
PROBLEM
Engine will not turn over with the starter.
Engine
will not start or is difficult to start.
Engine misses, runs
irregularly or stops.
Engine overheats.
To
much engine vibration.
KEY TO CORRECT THE CAUSE
1.
Battery has lost its charge.
2.
Loose battery connections.
3.
Loose starter connections.
4.
Damaged starter switch.
5.
Broken starter switch.
6.
Damaged starter solenoid.
7.
Wrong starting procedure.
8.
No fuel
in
tank.
9.
Air cleaner is dirty.
10.
Fuel vent
in
cap has restriction.
11.
Fuel line has air leak, dirt or water.
12.
Damaged fuel lift pump.
13. Hydraulic/Hydrostatic load on engine.
14.
Damage to fuel injection system.
15.
Crankcase oil is thick.
16.
Check glow plugs.
17.
Check
pr~heat
solenoid.
18.
Check the fuel shutoff button.
19.
Delivery valve nuts not tightened.
20. Fuel injection set wrong.
21. Dirty
fuel, or fuel filter restricted.
22. Poor compression.
23. Wrong
fuel (use diesel only).
24. Water
in
the fuel.
25. Engine is overloaded.
26. Dirty engine oil.
27. Exhaust system has restriction.
28.
Injection timing is wrong.
29.
Loose engine mounts.
30. Worn rubber mounts.
-7C-1-
CAUSE
1,2,3,4,5,6
7,8,9,10,11,12,13
,
14,15,16,17,18,19
20,21,22,23,24
25,26,27,28
29,30
741,742,743,
7430S
Bobcat
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