Product Manual

Owner’s Manual for Mobile Generator 31
Operation
Figure 3-8. Receptacle and Breaker Locations
NOTE: Power to the receptacles is available any time
the generator is running, even if the main circuit breaker
is OFF (O). Verify equipment connected to the
receptacles is turned OFF before turning the breakers
ON (I).
NOTE: When the voltage selector switch is in position for
480/277V 3Ø, voltage at the two GFCI receptacles is 139
volts and the voltage at the three twist-lock receptacles is
240/139 volts. Generac Mobile does not recommend
using the receptacles in the 480V position. When the
voltage selector switch is in position for 208/120V 3Ø,
voltage at the three twist-lock receptacles and the two
GFCI receptacles is 208/120 volts.
Main Circuit Breaker
See Figure 3-9. The main circuit breaker is located on
the main control panel. When the breaker is OFF (O),
power is interrupted to the connection lugs, the optional
cam lock receptacles, and the generator. The breaker
may be switched ON (I) once the connections have been
made to the connection lugs or the optional cam lock
receptacles, and the unit has been started and allowed to
reach normal operating temperature.
Figure 3-9. Main Circuit Breaker
Reasons the main circuit breaker may trip:
• Overload of the generator circuits to the connection
lugs or the optional cam lock receptacles.
• The door covering the connection lugs or the
optional cam lock receptacles is opened.
• If the emergency stop switch is activated.
Verify any problems that cause the main circuit breaker to
trip are corrected before returning the switch to ON (I).
NOTE: The main circuit breaker only interrupts power to
the connection lugs and the optional cam lock
receptacles. The customer convenience receptacles
have power even if the main circuit breaker is OFF (O).
Use the individual circuit breakers located near each
receptacle to disconnect power to these receptacles.
DOC and SCR Cleaning
Operations
When enabled, the exhaust after-treatment system goes
through an automatic cleaning process known as
regeneration. Under normal circumstances, regeneration
occurs without interrupting the unit operation and with
minimal operator involvement. In the event there are
conditions requiring the operation of the unit with the auto
exhaust after-treatment cleaning disabled, the operator
may be required to perform procedures to enable or
disable the auto exhaust after-treatment cleaning. The
operator may also be required to perform a manual
regeneration.
NOTE: Always park the unit in a safe location for
elevated exhaust temperatures and check for adequate
fuel level before beginning the exhaust after-treatment
cleaning process. The cleaning cycle can take an
extended period of time (approximately 45 minutes).
A 20A circuit breaker (2)
B 50A Circuit breaker (3)
C 120/240V twist-lock receptacle (3)
D 120V GFCI receptacle (2)
A
B
C
D
006234
On/I
On/I
Off/O
Off/O
002814
WARNING
Risk of Burn. Stay clear of the exhaust system
during operation and exhaust filter cleaning.
Exposure to hot exhaust gases and components
could result in serious injury.
(000304)