Hobart JET-EX 4 Operation And Maintenance Manual page 78

OM-2049
TROUBLESYMPTOM
AND CONDITION
ENGINE AND CONTROLS
17. Engine does
not slow down
to idle with
speed control
switch in IDLE
position.
(Cont'd)
18. Engine will
not shut off.
Speed control
switch in IDLE
position and
ignition
switch in OFF/
SHUTDOWN
position.
3-1
Page 16
PROBABLE CAUSE
(3) Idle solenoid
(L403) defective.
A. Plunger of anti-diesel
solenoid (L405, on
front of carburetor
just above its base)
becomes stuck while
engine is running.
TEST, CHECK, AND/OR
REMEDY
(3) Idle solenoid is located
just behind carburetor.
Disconnect idle solenoid's
wire leads at the quick-
disconnect clips which
wire the solenoid to
engine circuitry. With
clip leads, attempt to
operate the solenoid by
putting 12-V DC directly
into the solenoid from
the engine battery. The
white wire is positive
and the black wire is
negative.
A. Remove engine circuit fuse to
stop engine. Replace idle
solenoid.
May 20/89