GMC MOTORHOME 1978 User Manual

Onan Motor Generator
MOTOR
GENERATOR
NOTICE : Before
operating motor
generator see
the carbon
monoxide caution at the
beginning of
this section .
The
motor generator will allow
operation of
all 120-volt
appliances without an
external
power connection,
thus allowing the vehicle to
be independent of an
external power source . The
motor generator is located in
an exterior com-
partment
in the left rear corner
of the vehicle .
The Onan unit is mounted
on slides and can
be
pulled out like a drawer for
ease in servicing
the
unit . To slide out the unit
depress the but-
tons on the
two latches . Then pull up on
safety
latch in upper
right-hand corner and pull
unit
out .
OPERATING INSTRUCTIONS
The unit can be
started from inside the
Motorhome by using the remote
switch . The
Onan remote switch is located at
eye level on
the side of the refrigerator . A
START-STOP
switch is also
located on the right side of
the
generator
.
Before starting the motor generator
the ex-
ternal power cord must be plugged
into the
motor generator receptacle . Both of
these com-
ponents are located in the external utilities com-
partmenton the left side of the vehicle . Be sure
the crankcase has been filled with oil to the "F"
full mark on the dipstick . Check oil only when
the motor
generator is not operating .
The
remote START-STOP switch is a three-
position
rocker switch . By pressing the
top half
of
the
switch
the starter on the motor
generator
will be activated, hold in the
switch until the
unit is started . The
switch should then be re-
leased . When the
motor generator is running
the
small
amber light next to the switch will be
lit .
To stop the unit
depress the bottom half of the
switch, and hold in
until the unit comes to a
full stop . The START-STOP
switch on the unit
itself operates in a similar manner
.
CAUTION
Do not crank
engine for longer than 30
seconds at
a time . Excessively long
cranking periods
may cause heat dam .
age to starter
motor .
NOTICE
: If the motor generator has been running
with a load
connected, disconnect the load
and
allow it to run for a few
minutes (with no-load
connected) before pushing
STOP button .
The circuit breaker on top of
the unit will trip
when
the demand for electricity
in amperes ex-
ceeds
the motor generators
capabilities . If the
circuit breaker
does trip, remove part
.of the
electrical load and
reset the breaker .
HOUR METER
Located to the left of
the START-STOF
switch is
the HOUR
METER . The HOUR
METER
indicates total amount
of hours motor
generator has
operated . This gauge
will aid it
determining when the
motor generator
shoulc
receive periodic inspections,
maintenance
anc
service
parts replacements in
conjunction witl
the Maintenance
Schedule folder . The
Mainte
nance Schedule
folder includes Onan
Motor
Generator Maintenance
.

GMC MOTORHOME 1978 Specifications

General

Brand	GMC
Model	MOTORHOME 1978
Category	Motorhomes
Language	English