Hobart 120CU20, Operation And Maintenance Manual With Illustrated Parts List

Page: 60 / 246

OM-2228 / Operation and Maintenance Manual
120CU20 / Series 500120 / 400 Hz. Generator Set
October 15, 2013 Chapter 2-1
Page 6
e Check Fault Code Meter.
At each daily start-up, observe the fault code meter on the control panel. If the display shows
“air”, change the air filter. See Section 2-4 for other fault codes.
f Check Exhaust System.
Visually inspect muffler and exhaust pipes for rust and signs of approaching failure. Listen for
any gasket or joint leaks.
WARNING
A leaking and defective exhaust system could be a fire hazard.
(2) Electrical System (12 VDC).
a Check All Lights.
Check all indicating lights to be sure they will operate when they should. If any light fails to
operate, check both the lamp and its protective circuit breaker. Figure 5 lists all lamps with
their location and part number. Figure 6 lists all circuit breakers.
b Check Engine Battery Voltage.
Observe the 12-VDC engine voltmeter each time the engine is started to be sure the
alternator is functioning correctly and charging the batteries. If the batteries need to be
replaced, be sure the replacements meet the specifications for Cold Cranking Amps (CCA)
and Reserve Capacity.
c Check the operation of all the engine meters.
Water Drain