Hobart 140GT17P Operation And Maintenance Manual With Illustrated Parts List page 109

TROUBLE, SYMPTOM
AND CONDITION
GENERATOR CONTROLS AND INSTRUMENTS (CONTINUED)
2. Load contactor will
close when control
switch (20, Fig. 1)
is held in momentary
ON position.
Opens immediately
when switch is released
to center ON position.
3. Load contactor
opens during power
delivery. NO fault
indicating lights
on.
September 30/89 Revised
PROBABLE CAUSE
E. Defective fuse-
interlock relay (K17)
or resistor (R46)
A. Fuse (1F or 2F) blown
B. A fault has developed
in the load
contactor holding
circuit.
C. Cable accidentally
disconnected from
Trouble Shooting Chart (Sheet 15 of 20)
Figure
TEST, CHECK, AND/OR
REMEDY
E. Open protective relay tray
and connect a jumper across
the resistor R46) (Sect.
1-1; 21, Fig. 8). If the
contactor will now remain
closed, replace the resistor
(R46). If the contactor will
not remain closed, replace
fuse-interlock relay (K17)
(Sect. 1-1; 2, Fig. 8) or
replace the protective relay
tray assembly.
A. Remove and inspect fuses
(1-1; 16 and 17, Fig. 8).
Replace as required.
B. If the load contactor cannot
be closed by operation of
the control switch (S5) (20,
Fig. 1), check the circuit
in accordance with instruc-
tions in Trouble 1, above
under LOAD CONTACTOR
OPERATING CIRCUIT. If the
load contactor can be closed, but
opens as soon as control
switch (S5) is released,
check for trouble under
Trouble 2, above.
C. Reconnect cable.
OM-2029
3-1
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