Hobart JET-EX 4 Operation And Maintenance Manual page 69

TROUBLESYMPTOM
AND CONDITION
ENGINE AND CONTROLS
1. Engine will not
start. Starter
will not crank
engine. (Cont'd)
2. Engine will not
start. Starter
DOES crank
engine.
May 20/89
PROBABLE CAUSE
E. Internal engine
seizure.
A. Engine circuit fuse
(F402) blown or-
B. Fuel valve at tank
closed, or no fuel in
tank or-
C. Defective overspeed
relay (K401) or-
D. Defective component in
ignition system:
ignition coil (L402),
distributor (E405), or
ignition module, or-
E. Defective anti-diesel
solenoid (L405).
TEST, CHECK, AND/OR
REMEDY
E. CAUTION: MAKE CERTAIN
THAT IGNITION IS OFF SO
THAT THE ENGINE DOES
NOT START.
Use a socket wrench on the
front crankshaft pulley to
try to turn engine by hand.
If engine will not turn,
internal damage is indicated.
A. Replace engine circuit fuse
(16, Fig. 2). Use type
AGC-20 fuse.
B. Check and correct as required.
C. Disconnect the black wire from
terminal 4 on the overspeed
relay (21, Fig. 1). If engine
now starts, replace overspeed
relay.
D. Check these components in
accordance with Ford Mainten-
ance and Operator's Manual.
Replace faulty component
E. The anti-diesel solenoid is
located at the base of the
carburetor in front of it.
Disconnect the red wire of the
solenoid from the engine
circuit. With a jumper lead
attached to the positive
terminal of the battery, check
the operation of the solenoid
by listening for its opening
and closing when the other end
of the jumper lead is touched
to the terminal of the red
solenoid wire. If no sound is
heard from the solenoid, it
must be replaced.
OM-2049
3-1
Page 7