Electrical System (115-V Ac); Monitoring Instruments; Indicating Lights; Protective Modules - Hobart 140GT17P Operation And Maintenance Manual With Illustrated Parts List

OM-2029
Item Protected
Instrument panel
lights & engine
circuit
Protective relay
system
Voltage regulator
Load contactor
circuit

4. Electrical System (115-V AC)

The 400-Hz generator and controls are designed to be as maintenance free as possible. No lubrica-
tion is necessary and no periodic maintenance adjustments are required. However, some regular
checks should be made to be sure all controls, instruments, etc., are working properly.
A. Monitoring Instruments
Observe operation of voltmeter, ammeter, and frequency meter each time the unit is started.
B. Indicating Lights
Check lamps (bulbs) in all of the indicating lights at each start up. Fault indicating lights in the protec-
tive relay tray may be tested by pressing test switch.
C. Protective Modules
Check operation of all protective modules to make certain they will function if a fault should occur in
the output circuit. (See 2-3; Para. 2, B.)
D. Wiring and Connections
(1) Check all cables, leads, and wiring for broken, worn, and damaged insulation.
(2) Check all connections for tightness.
WARNING: STOP OPERATIONS AND STOP ENGINE BEFORE TOUCHING EX-
POSED CONDUCTORS OR TERMINALS.
(3) Check the output cable plug connector for damaged contactors in the end of the plug.
2-2
Page 4
Location
Engine control
panel
Generator
control panel
Voltage regulator
PC board
Generator
control panel
Circuit Breaker Identification Chart
Figure 3
Illustration Size & Type
Sect. 1-1, Fig.9, 10A Circuit breaker
item 8
Sect. 1-1, Fig.6, 2A Circuit breaker
item 6
Sect. 1-1, Fig. 8, 5A Type AGC Fuse
item 1
Sect. 1-1, Fig. 6, 2A Circuit breaker
item 4
September 30/89 Revised