GMC 1975 Motorhome Operating Manual

A

WordTo

The

GMC

MotorHome

Owner

Congratulations

on

your

purchase

ofaGMC

MotorHome

.

You

have

opened

the

way

to

an

endless varietyofhappy

holidays

.

This

manual

has been

prepared

to

acquaint

you

with

the

operation

and

maintenanceofyour

MotorHome,

and

to

provide

important

safety

information.It

is

supplemented

by

convenient

folders

which

provide

additional

information

on

vehicle

maintenance,

emission

control,

and

warranties

.

We

urge

you

to

read

these

publications

carefully

and

follow

the

recommendationstohelp

assure

the

most

enjoyable

and

troublefree

operationofyour

vehicle

.

When

it

comes

to

service,

remember

that

your

GMC

MotorHome

Dealer

knowsyour

vehicle

best

andisinterested

in

your

complete

satisfaction.Return

to

him

for

service

and

any

other

assistance

you

may

require

.

GMC

Truck

and

Coach maintains

a

number

of

Zone

Offices

throughout

the

country.Should

you

haveaproblem

that

cannotbehandled

through

normal

channels,

please

fol

low

the

procedure

described

under

the"Owner

Assistance"

section

.

Thank

you

for

choosingaGMC

MotorHome

.

We

extend

our

best

wishes

for

many

years

of

pleasant

traveling

.

Cordially,

R.C

.

Stelter

General

Sales

Manager

The

components

of

your

vehicle

are

designed

to

provide

satisfactory serviceifthe

vehicleisno

loaded

in

excess

of either

the Gross

Vehicli

Weight

Rating

(GVWR)

or

the

maximum

Fron

and

Rear

Gross Axle

Weight

Ratings

(GAWR's

specified

on

the

vehicle

identification

numbe

plate.Overloading

can

create

serious

potentia

safety

hazards

and

can

also

shorten

the

servcei

lifeofyour

vehicle.Your

dealer

can

advise

yoi

concerning

proper

loading

conditions

of

you

vehicle

.

When

loading

the

MotorHome,

it is

impor-

tant

thatitis

properly

loaded.All

items

should

be

loaded

as

centrally

and

as

low

as

possible

.

This

is

essential

to

maintain

proper

vehicle

handling.Even

though

a

single

item

may

not

weigh

much

alone,

severalofthese

items

may

have

considerable

weight.Proper

loading

is

essential

.

FRONT

GAWR

4,200

LBS

.

CAUTION

IMPORTANT

INFORMATION

ON

VEHICLE

LOADING

GVWR

RATING

11,700

LBS

.

MAXIMUM

TOTAL

WEIGHT

AT

GROUND

11,700

LBS

.

'Curb

weightisthe

weightofthe

vehicle

without

driver,

passenger,orcargo, but

does

include

fuel

and

coolant

.

Vehicle

Loading

1

MAXIMUM

FRONT

AND

REAR

AXLE

WEIGHTS

(AS

MANUFACTURED)

The

weight

of

the load

must

be

properly

dis-

tributed

over

both

the

front

and

rear

axles,

although

not

necessarily

evenly.The

plate

shows

the

maximum

weight

that

the

front

axle

can

carry

(front

GAWR)

and

the

maximum

weight

that

the

rear

axle

(rear

GAWR)

can

carry

.

The

GVWR

represents

the

maximum

permissible

loaded

weight

of

the

vehicle.Itisestablished

by

the

manufacturer

taking

into

consideration

the

engine,

transmission,

frame,

brake,

axle

and

tire

capabilities.Actual

front

and

rear

end

weights

at

the

ground

can

only

be determined

by

weighing

the

vehicle.This

can

be

accom-

plished

through

highway

weigh

stationsorother

such

commercial

facilities.For

assistanceinthis

regard,

consult

your

dealer.Care

should

also

be

exercised

to see that

the loadisdistributed

on

both

sides

of

the

centerline

of

the

vehicle

as

equallyaspossible

.

REAR

GAWR

7,500

LBS

.

f

CO

GENERAL

MOTORS

CORPORATION

O

1

WARRANTY

MAYBEVOIDEDIFWEIGHT

EXCEEDS

ANVOFRATINGS

SHOWN.GROSS

VEHICLE

WEIGHT

INCLUDES

WEIGHT

OF

BASE

VEHICLE,

ALL

ADDED

EQUIPMENT,

DRIVER

AND

PASSENGERS,

AND

ALL

PROPERTY

LOADED

INTOORONTO

VEHICLE

.

RATINGSINPOUNDS

- AS

MANUFACTURED

GROSS

VEHICLE

WEIGHT

FOR

THIS VEHICLE

MAXIMUM

FRONT

END

WEIGHTATGROUND

MAXIMUM

REAR

END

WEIGHTATGROUND

VEHICLE

IDENTIFICATIONNO.

Vehicle

Identification

Plate

VIN

(Vehicle

Identification

Number)

Plate

The

vehicle

identification

number

plate

shows

the

GVWR

and

the

front

and

rear

GAWR's

for

the

vehicletowhich

they

are

attached

.

Gross

Vehicle

Weight

(GVW)

is

the

weight

of

the

vehicle

itself,

all

items

added

to the

vehicle

afterithas

left

the

factory,

the

driver

and

all

occupants,

and

everything

thatisloaded

into

(or

onto)

the

vehicle.The

GVW

must

not

ex-

ceed

the

GVWR

and

the

front

and

rear

weights

of

the

loaded

vehicle

must

not

exceed the

front

and

rear

GAWR's

.

CAUTION

When

using

your

vehicletotransport

luggage

or

other

cargo,itis

recom-

mended

that

the

articles

Ire

secured

in

place.This

precaution

will

help

prevent

such

items

from

becoming

dangerous

projectiles

in

she

event

of

an

accident

.

EFFECT

ON

WARRANTY

Your

New

Vehicle

Warranty

does

not

apply

to

any

partofyour

vehicle

"which

has

been

subject

to

misuse."Any

part

which

fails

becauseofover-

loading

has

been

subject

to

misuse

within

the

meaning

of

this

provisionofthe

warranty

.

REAR

BUMPERLOADING

Care

must

be

taken

with

racks or

temporary

attachments,

when

attachedtothe

rear

bumper

.

Such

items could

nullify

the

energy

absorbing

capabilities

of the

rear

bumper.Your

GMC

MotorHome

dealer

can

advise

you

as to

suitable

means

of

attachment

.

For

continuing

satisfaction

keep

your

vehicle

all

GM.General Motors

Parts

are

identifiedbyone

of

these

trademarks

:

BEFORE

DRIVING

YOUR

MOTORHOME

DRIVER

CHECK

LIST

9

.

BEFORE

ENTERING

VEHICLE

1.See

that

windows,

mirrors,

and

lights

are

clean

.

2.Check

inflation

conditionoftires

.

3.Turn

off

LP

gas valve

on

LP

tank

(See

CAUTION

under

"LP

Gas

System"

in

SER-

VICE

AND

MAINTENANCE

section)

.

4.Check

that

sewer

connection,

all

external

compartments,

and

filler

openings

are

prop-

erly

stowedorclosed

and/or

locked

.

5.Check

that items

stored

on

exteriorofve-

hicle

are

securely

lashed

.

6.Will

any

items

storedonexteriorofvehicle

presentaclearance

problem?

7.Are

there

any

rocks, posts,

low-hanging

lines

or

branches

under

or

near

the

vehicle

you

must

avoid

before

driving

away?

8.Check

that

area to

rearofvehicleisclear

if

about

to

back-up

.

BEFORE

DRIVING

OFF

1.Lock

entrance

door

.

2.Check

that

all

windows

and

vents

are

in

suitable

position

for travel

(See

"Engine

Exhaust

Gas

Caution

(CarbonMonoxide)

"

at

the

beginning

of

STARTING

AND

OP-

ERATING

VEHICLE

section

.

3.Turn

off

living

area

water

pump

.

4.Check

that

refrigerator

doorisfastened

.

5

.

Check

that

nothing

heavy

is

storedinover-

head

or high

cabinets-it

may

fall

out

en-

route

and

cause

injury

.

6.Close

and

secure

bathroom,

closet,

and

all

cabinet

doors

and

drawers

.

7.Check

that

counter

tops,

range

top,

kitchen

sink,

table

tops

and

shelves

are

clear-even

small

items

may

become

projectiles in

an

accident.Itisnot

safetocook

while

under-

way-hot

food or

liquid

may

scaldina sud-

den

stopor

accident

.

8.Be

sure

all

LP

gas

controls

on

furnace,

range/oven

and

optional

gas/electrical

refrigerator

are

turned

off

.

Check

that

all

interior

stowage

is

securely

held

.

10.Check

that

all

lights

and

switches

are

set

in

positions

suitable

for travel

.

11.Position

driver's

seat

for

comfort

.

12.Check

that

driver's

and

front passenger's

seat,

andany

other

swivel-mounted

seats

are

locked

in

position

.

13.Check

adjustment

of

inside

and

outside

mirrors

.

Adjust

curtains

where

necessary

for

visibility

.

14.If

vehicleisequippedwith

optional

Power

Level

System,

check

that

both

control

knobs

are

setto"TRAVEL"

position

.

15.Fasten

lap

belts

.

16.Check

that

warning

light

bulbs

light

when

keyisturnedtoON

or

START

position

.

17.With

engine

running,

check

that

warning

lights

are

now

out

.

18

.

Be

sure

you

understand

your

vehicle

and

how

to

operateitand

its

systems

safely

.

19

.

Itisrecommended

that

you

referto"TRIP

TIPS"

and

"DRIVING

TIPS"

at

the

end

of

this

section

for

additional

information

.

CAL1T10~!

Counter

and

table

tops

should

not

be

used

for

storage

when

underway-even

for

light

weight,

small

articles-

Thoy

might

becamedangerous

projectiles

dur-

ing

an

aWdent

.

Heavy

items

stored

in

overhead

or

waist-high

cabinets

may

also

cause

injuryifu sharp

turn

or

stop

rouses

thern

to

toppte

against

inside of

cabinet

door,

forcing

it

open.Store

connedgoods

and

other

heavy

iterns

down

low,

INSIDE

REARVIEW

MIRROR

Switch

inside

mirror

(see

next

page)

to

night

positiontoreduce

glare

from

following

head-

lights

.

To

raiseorlower

mirror

to

achieve

desired

fieldofview,

grasp

mirror

and

exert

sufficient

pressure

by

pushing

or

pulling

up,

down,

or

sideways

.

Inside

Rearview

Mirror

KEYS

Two

setsofkeys

are

furnished

with

your

ve-

hicle.Each

key

hasadifferent

cross

section

so

thatitcan

be

inserted

onlyincertain

locks

.

Key

with

Square

Head-For

ignition

switch

only

.

Key

with

Oval

Head-For

door

lock,

glove

box

and

external

utilities

compartment

.

NOTE:A

third

keyisprovided

for

the

water

tank

filler

door

when

locatedonrearofvehicle

.

M0VE

Lcv'EQ

.

.1111

,

NAaC.fo

RELEASE

Seat

Track

Mechanism

MOVE

LEVER

;

?FAR

ARD

TO

REL

FASO

SEATS

Seat

Swivel

Mechanism

The

code

number

of

each

key

is

stamped

on

the

"knock

out"

plug

in

the

key

head

.

Your

dealer

removed

these

plugs

and

placed

them

with

the spare

set

of

keys

in

the

special

key

envelope

that

was

given

to

you

at

the

time

of

delivery.For

your

protection

Record

the

numbers

on

the

key

envelope

and

discard

the

key

plugs

.

Keep

the

key

envelope

inasafe

place

such

as

your

wallet,

NOT

IN

THE

VEHICLE

.

In

the

event

the

original

keys

are

lost,

dupli-

cates

canbemade

by

your

dealer or a

locksmith

using

the

key

code

information.When

leaving

the

vehicle

unattended,

remove

the

keys

and

lock

the

entrance

door

.

The

driver

and

passenger

seats

in

the

driver

compartment

may

be

adjusted

to

suitanindi-

vidual's

preference.To

move

seat

forward

or

backward,

simply

release

the

seat

locking

lever

located

on

the

aisle

side of

the

seat

.

Once

re-

leased,

exert

slight

body

pressureinthe

direction

desired.Release

lever

to

lock

the

seat in

the

desired

position

.

The

seats

can

be

swiveled

to provide

easy

entrance

and

exit.To

turn

swivel

seat,

release

locking

mechanismby

moving

seat

swivel

lever

(as

shown),

then

turn

seat

.

Check

that

all

swiveling

seats

are

locked

in

position

before

driving

off.If

any

seat

swiveled

during

an

accident

the

occu-

pant

may

be

more

likely

injured.DO

NOT

adjust

the

driver's

seat

swivel

or

fore

and

aft

mechanism

while

the ve-

hicleismoving.The

seat

could

move

unexpectedly

causing

lossofcontrol

of

the

vehicle

.

DOOR

LATCH

CAUTION

ENTRANCE

DOOR

Door

must

be

locked

from

outside the

vehicle

by

inserting

the

key

into

the

door

key

lock

and

turning.To

unlock,

turninthe clockwise

direc-

tion.Reverse

the

direction

to lock

.

To

lock

door

from

inside

vehicle,

push

the

lock

button

DOWN

.

To

unlock

and

open

door

from

the

inside,

pull

the

lock

button

UP

and

pulloninside

door

handle

.

REMINDER:Always

lock

entrance

door

when

driving

for

greater

securityinthe

eventofan

accident,tohelp

keep

chil-

dren

from

inadvertently

opening

door,

and

for

security

against

entry

by

un-

welcome

persons

while

momentarily

stopped

.

LAP

BELTS

Your

GMC

MotorHome

is

equipped

with

lap

beltsinthe

driver

and

front

passenger

seating

Entrance

Door

Latch

VIEW'

FROM

OUTSIDEVEHICLE

position

(s),

as well as

certain

other

seating

loca-

tions

in

the

MotorHome

.

It

is

recommended

that while the

vehicleisin

motion,

all

occupants

remain

seated

and

keep

lap

belts

buckled

snugly

at

all

times

.

The

driver

and

front

passenger

seating

posi-

tions-have

retractors

which

are

designed

to

automatically

take

up

excess

webbing

.

Adjust

seattodesired

position

and

sit

erect

and

well

backinthe

seat

.

Inasingle

motion,

pull

webbing

across

lap

far

enough

to

permit

inserting

metal

latch

Lap

Belt

(Front

Seating

Positions)

plate

endoflap

belt into

the

buckle,

until

a

snapisheard.If

webbingisnot

pulled

out

far

enough

to

reach

the

buckle,

let

the

belt

re-

wind

into

the

retractortorelease

lock

mech-

anism,sobelt

can be

pulled

outtothe proper

length

.

Position

belt

across

lapasLOW

ON

HIPS

as

possible.To

reduce

the

risk

of sliding

under

the

belt

duringanaccident,

adjust

to

a

SNUG

FIT

by

pulling

belt

firmly

across

lapindirectionofretractorsoit

can

take

up

slack

.

NOTE:Take

care

nottolet

the

lap

belt

twist

whileitis

being

rewound

into

the

retractor

.

The

bulk

of

the

twisted

belt

may

cause

the

retractor

to

jam

soitwill

not

rewind

further,

while

at

the

same

time

the

retractor's

locking

mechanism

may

prevent

the

belt

from

being

withdrawn.Ifabelt

should

become

jammed,

you

may

be able

to

release

itbyworking

the

beltinand

out

until

the

belt

rewinds

far

enough

to

unlock

.Iflap

belt

remains

jammed

or

other

parts

of

the

restraint

system

do

not

operate

properly take

the

vehicletoyour

dealer

for

service

.

Lap

belts at

seating

positions

other

than

the

driver

and

front

passenger

positions-should

be

positioned

and

securedasabove,

and

adjusted

toaSNUG

FIT

by

pullingonthe

endofthe

belt

extending

from

the

buckle

.

"

To

lengthen the lap

belts

at

these

seating

positions,

place

buckle

at

right

angletothe

belt

webbing

and

pullonbuckle;belt

should

then

slide easily

through

the

adjustment

feature

.

To

unfasten

seat

belts,

depress

push

button

in

centerofbuckle

.

CAUTION

A

snug

fir

and

a low

lop

belt

position

are

essenriafTolessen

the

chance

of

in-

jury

in

11ne

eventofan

accident,

because

this

spreads

the

force

exertedbythe

lup

belt

in a

c16ll1sian

over

the

strong

hip

bone

structure

rather

than

across

the

soft

abdominal

area

.

To

lessen

the

chance

of

injuryinthe

event

of

an

Qrcident

-

never

use

the

same

belt

for

mare

than

one

person

atatime:avoid

wearing

beltsino

twisted

condition,donot

allow

belts

or

hardware

to

become

pinched

between

The

seat

structural

(metallic)

member

or

in

the

door

.

6

LAP

BELT

INSPECTION

Periodically

inspect

belts,

buckles,

retractors,

and

anchors

for

damage

that

could

lessen

the

effectivenessofthe

restraint

system

.

s

Keep

sharp edges

and

pointed

objects

away

from

belts

.

Replace

beltsifcut,

weakened,

frayed,

or

subjectedtocollision

loads

.

Check

that

the

anchor

mounting

bolts

are

tight

.

Have

questionable

parts

replaced

.

Keep

belts

clean

and

dry

.

Clean

only

with

mild soap

solution

and

luke-

warm

water

.

Do

not

bleach or

dye

belts

since

this

may

severely

weaken

them

.

CHILD

RESTRAINT

Children

in

vehicles

should

be

restrained

to

lessen

the

risk of

injuryinaccidents,orsudden

stops

.

In

using

any

infantorchild

restraint

sys-

tem,

read

and

follow

all

installation

and

usage

instructions

.

All

unused

lap

belts

near

the

child

should

be

stowed

properly

to

help

prevent

them

from

striking

the

childinthe

eventofan

accident.Lap

belts

without

storage

provisions

should

have

buckles

latched

and

belts

adjustedtoremove

slack

.

Ifachildistravelingina

vehicle

not equipped

with an

appropriate

infantorchild

restraint

sys-

tem,

the

following

precautions

should

be taken

:

1.Infants

unable

to

sit

up

by

themselves

should

be

restrainedbyplacing

them

inacov-

ered,

padded

bassinet

placed

crosswaysinthe

vehicle

(widthwise)

on the

REAR-FACING

dinette

seat.The

bassinet

shouldbesecurely

re-

strained

with

the

regular vehicle

lap

belts

.

2.Children

able

to

sit

up

by

themselves

shouldbeplaced

on a

seat

and

lap

belted.Never

allow

a

childtostand

or

kneel

on

any

seat

or

elsewhereinthe

vehicle,

onceitis

underway

.

TRAILER

HAULING

Towing

a

trailer

will

affect

handling,

durabil-

ity

and

economy.Maximum

safety

and

satisfac-

tion

depends

upon

proper

useofcorrect

equip-

ment

and

avoiding overloads

and

other

abusive

operation

.

The

maximum

loaded

trailer

weight

which

you

can

pull

withyour

vehicle

depends

on

what

special

equipment

has

been

installed.GMC

does

not

recommend

towing

any

trailer

OVER

1,000

POUNDS

GROSS

TRAILER

WEIGHT

unless the

vehicle

HAS

THE

REQUIRED

EQUIPMENT

.

Information

on

trailer

hauling

capabilities,

special

equipment

required,

and

optional

equipment

offered

can

be

obtained

by

writing to

GMC

Truck&Coach

Division,

Gen-

eral

Motors

Corporation,

Technical

Service

Department,

Pontiac,

Michigan

48053

(or

in

Canada,

by

writingtoGeneral

Motors

of

Can-

ada

Limited,

Owner

Relations

Department,

Oshawa,

Ontario

LIJ

5Z6)

.

To

assistinattaining

good

handling

of

the

Vehicle

Trailer

Combination,

it is

important

that

the

trailer

tongue

load

be

maintained

at

approximately

10%of

the

loaded

trailer

weight

.

Tongue

loads

can

be

adjusted

by

proper

distri-

bution

of the

load

in

the

trailer,

and

can

be

checked

by

weighing

separately

the

loaded

trailer

and

then

the

tongue

.

When

towing

trailers,

tires

should

be

inflated

to

the

highest

inflation

pressures

shown

on

tire

placard

located

on

glove

box

door.The

allow-

able

passenger

and

cargo

load

(GVW)

of

this

vehicleisreduced

by an

amount

equal

to

the

trailer

tongue

loadonthe

trailer

hitch

.

MAINTENANCE

More

frequent

vehicle

maintenance

is

required

when

being

used

to pullatrailer

.

Refer

to

"SERVICE

and

MAINTENANCE"

section

in

this

manual

.

BREAK-IN

SCHEDULE

In

addition

to the

"New

Vehicle

Operating

Speeds"

given

laterinthis

section,itis

recom-

mended,

that

your

new

vehicle

be

operated

for

500

miles

before

trailer

towing.If

it is

necessary

to

tow

during

this

period,

avoid

speeds

over

50

MPH,

and

full

throttle

starts

.

CAUTIONS

1.Trailer

brakes

are

required

on

trailers

over

1,000

lbs.loaded

weight

.

2.DO

NOT

tap

into

vehicle's

hydraulic

brake

system

if

operation

of

the

trailer

brake

system

requires

more

than0.02cu.-in.of

fluid

displace-

ment

from

the

vehicle's

master

cyl-

inder.The

vehicle's

master

cylinder

fluid

capacity

will

not

be

sufficient

to

operate

both

vehicle

and

trailer

brakes

under

all

conditions

of

use

if

more

than0.02 cu

.-in.of

fluid

dis-

placement

is

required

.

3.Whenever

a

trailer

hitchisremoved,

be

certain to

have

any

mounting

holes

in

underbody

properly

sealed

to

prevent

possible

entry

of

exhaust

fumes,

dirtorwater.(See

"ENGINE

EXHAUST

GAS

CAUTION"

in

the

fol-

lowing

section

.)

OPERATION

IN

FOREIGN

COUNTRIES

Your

vehicle's

engine

is

designed

to

operate

on

unleaded

fuelofapproximately

91

research

octane

number

.

If

you

plan

to

operate

your

vehicle

outside

the

continental

limits

of the

United

States

or

Canada,

thereisa

possibility

that the

best

fuels

available

are so

low

in

anti-knock

quality

that

excessive

knocking

and

serious

engine

damage

may

result

from

their

use.To

obtain

informa-

tion

on

the

quality

of

fuels

available

in

the

countries

in

which

you

plan

to

travel

write

to

GMC

Truck

&

Coach

Division,

General

Motors

Corporation,

Pontiac,

Michigan

48053

(or

in

Canada

write

to

General

Motors

of

Canada

Limited,

Owner

Relations

Department,

Oshawa,

Ontario),

giving

:

The

vehicle

identification

number

(from

plate

attached

to

right

sideofdash

panel

or

from

the

registration

sliportitle)

.

The

country

or

countriesinwhich

you

plan

to

travel

.

Itisrecommended

that

you

do

not

operate

your

vehicle

in

any

country

not

having

fuels

meeting

the

requirements

of

your

vehicle's

en-

gine

as

these

MAY

CAUSE

ENGINE

DAM-

AGE

for

which

GMC

Truck

&

Coach

is

not

responsible

under

the

terms

of

the

New

Vehicle

Warranty

or

Emission

Control

Systems

War-

ranty

.

A

small

amount

of

preparation

prior

to a

trip

will

savealotoftime

when

traveling

.

When

loading

heavy

items

into

your Motor-

Home

trytostore

them

as

low

and

centrally

as

possible.This

will

aid

performance

and

handling

of the

vehicle.Remember

even thoughan

item

may

not

weigh

much

individually

the

sum

weight

of

severalofthese

articles

may

be

sub-

stantial

.

When

transporting

luggage

or

other

cargo

in

your

MotorHome,

it is

recom-

mended

that

all

articlesbesecured

in

place.This

precaution

will

help prevent

such

items

from

becoming

projectiles

in

the

event

of

an

accident

.

The

following

emergency

equipmentisrecom-

mended,

at

minimum

"

Fire

Extinguisher

"

Hydraulic

Jack

and

LugWrench

"

Spare

Tire

"

Flashlight

"

First

Aid

Kit

"

Road

Emergency

Flares

"

Basic

Tool

Kit

These

items

might

be

found

useful

:

"

Plastic

Bucket

and

Funnel

"

Water

Hoseand

"Y"

Connection,incase

of

two

unitsonone

water

system

"

Level

"

Shovel

"

Spare

Automotive

Fuses

and

Bulbs

"

2"x4"

Chocks

or

Blocks

The

following

checks

should

be

made

before

startingona

trip

:

OUTSIDE

VEHICLE

TRIP TIPS

CAUTION

1.Run

through

"Driver

Check

List"

at

the

beginning

of

this

section

.

2

.

Check

engine

oil

level

.

3.Check

fluid

levelsonbatteries

.

4.Visually

inspect

radiator

coolant

level

.

5

.

Fill

windshield

washer

reservoir

.

6.Check

tire

pressure,

and

inspect

tires

for

road

damage,

foreign objects

.

7.Check

operation

of

all

outside

lights

.

8.Check

that

all

exterior

vents

are

unob-

structed

.

9.Check

and

empty

holding

tank

.

INSIDE

VEHICLE

1.Check

operation

of

optional

Power

Level

System

.

2.Check

gasoline

supply

.

3.Check

transmission

fluid

level

.

4.Check

power

steering

fluid

level

.

5.Check

operation of

windshield

wipers

and

windshield

washers

.

6.Check

operationofbrakes

.

7.Check

operation of

interior

lights

.

8.Check

all

appliances

and

fixtures

for

proper

operation

.

9.Check

operationofmotor

generator

.

10.Checkand

fill

living

area

water

system

11.Check

and

fill

LP

gas

tank

.

12.Check

Maintenance

Schedule

foldertomake

sure

all

periodic

maintenance

and

safety

checks

have been

performed

.

13

.

After

the

vehicle

has

been

loaded,

check

to

see

that the

vehicle's

Gross

Vehicle

Weight,

and

front

and

rear axle

capacities

have

not

been

exceeded.This

check

should

be

made

fully

loaded

including

passengers.(Refer

to

the

"IMPORTANT

INFORMATION

ON

VEHICLE

LOADING"

sectionofthis

manual

for

further

information

.)

Before

leaving

any

camp-site

make

sure

all

litter

has

been

pickedup.

When

travelinginwinter

it is

recommended

that the

water

tank

not

be

filled

until

the

des-

tination

is

reached.This

will

ensure

that

the

vehicle

has

thoroughly

warmed

up.The

water

and

holding

tank systems

should

be

drained

be-

fore

leaving

for

home.Also,

at

this

time,

put

some

non-toxic,

non-flammable

anti-freeze

into

the

sink

and shower

traps.Heat

tape

has

been

found

useful

in

preventing

pipe

freeze-up,

wherepower

is

available.Some

non-toxic,

non-

flammable

anti-freezeinthe

holding

tank

will

help

keep

the

tank

contents

from

freezing.The

recirculating

toilet

should

be

drained

immedi-

atelyatthe

end

of the

trip

.

DRIVING

TIPS

The

MotorHome

driver

controls

are auto-

motive-type

to

make

the

vehicleascomfortable

as

possible.The

steering

and

braking

controls

are

power

assistedtohelp

make

driving

as

effortless

as

possible.However,

it

must

be

remembered

that the

MotorHome

is

much

higher,

wider,

and

heavier

than

a

family

automobile

.

Since the

MotorHome

is

9-ft.2-in.high,

with

the

roof

mounted

air

conditioner,

additional

care

is

requiredtowatch

for

low

bridges

and

over-

passes.TREEBRANCHES

CAN

DO

CON-

SIDERABLE

DAMAGE

TO

THE

WIND-

SHIELD

ORROOF

OF

THE

VEHICLE

TOO,

SO

WATCH

FOR

THEM

.

For

continuing

satisfaction

keep

your

vehicle

all

GM.General

Motors

Parts

are

identifiedbyone

of

these

trademarks

:

[131

The

MotorHome

power-to-weight

ratio

is

lower

than

that

of

the

average

automobile

.

Therefore

it is

essential to

compensate

for

less

acceleration

when

moving

into

traffic,orwhen

passing

another

vehicle

.

NEW

VEHICLE

OPERATING

SPEEDS

Driving

speeds

for

your

new

vehicle

should

be

limitedtoa

maximum

of

50

MPH

for

the

first

100

miles,

and

65

MPH

for

the

next

400

miles

with

no

heavy

throttle

accelerations.If

your

initial

mileage

isofthe

around-town

vari-

ety,

which

is

considered

"severe

service"

espe-

ciallyincold

weather,besuretoinclude

some

25

to

50

mile

highway

trips

during

the

break-

in

period

and

vary

the

vehicle's

speed

.

GMC

MOTORHOME

NOTES

STA

CLE

ENGINE

EXHAUST

GAS

CAUTION

(CARBON

MONOXIDE)

Avoid

inhaling

exhaust

gases

because

they

contain

carbon

monoxide

which by

itselfiscolorless

and

odorless.Carbon

monoxideisa

dangerous

gas

that

can

cause

unconsciousness

and

is

potentially

lethal

.

If,atany

time,

you

suspect

that

exhaust

fumes

are

entering

the Motor-

Home

from

any

source

have

the

cause

determined

and

correctedassoon

as

possible.If

you

must

drive

before

the

cause

is

corrected,

drive

only

with

ALL

except

two

rear

windows

FULLY open

and

heating

or

cooling

system

adjusted

for

maximum

ventilation

(see

below)

.

The

best

protection

against

carbon

monoxide

entry

into

the

vehicle

body

isaproperly

maintained

engine

exhaust

system,

body

and

body

ventilation

system

.

It is

recommended

that

the

exhaust

system

and

body

be

inspected

by

a

competent

mechanic

:

Each time

the

vehicle

is

raised

for

lubrication

or

oil

change

.

"

Whenever

a

changeisnoticedinthe

sound,

alignment,orappearance

of

the

exhaust

system

.

Whenever

the

exhaust

system,

underbody

or

rear

of

the

vehicle

is

damaged

.

See

your

Maintenance

Schedule

folder

for

inspection

procedure

.

To

allow

proper

operationofthe

vehicle's

ventilation

system,

keep

front

inlet

grille

clearofsnow,

leaves,

or

other

obstructionsatall

times

.

OCCUPYING

A

PARKED

VEHICLE

WITH

ENGINE

RUNNING

FOR

AN

EX-

TENDED

PERIOD

OF

TIME

IS

NOT

RECOMMENDED

.

Do

not

run

engine

in

confined

areas

such

as

garages

any

more

than

needed

to

move

vehicleinor

outofarea

.

When

vehicleisstoppedinan

UNCONFINED

area with

the

engine

running

for

any

more

thanashort

period

of

time,

adjust

heating

or

cooling

systemtoforce

outside

air

into

the

vehicleasfollows

:

1

.

On

vehicles

not

equipped

with

automotive

air

conditioning,

set

fan

to

medium

or

high

speed

and

upper

control

levertoany

position

except

"OFF

."

Lower

control

lever

shouldbeadjustedtoany

position

except

extreme

left

"RECIRC

."

2.On

vehicles

equipped

with

automotive

air

conditioning,

set

fan

to

medium

or

high speed,

upper

control

levertoany

position

except

"OFF,"

and

lower

control

lever

to

any

position

except

extreme

left

"RECIRC

."

The

two

rear

windows

shouldbeclosed

while

drivingtoavoid

drawing

dangerous

exhaust

gases

into

the

vehicle

through

those

openings.In

addi-

tion,

it

is

recommended

that roof

vent(s)

be

closed

while

driving.If,

for

some

reason,arear

window

or

roof

vent

must

remain

open

foraperiod

while

driving, or

electrical

wiring

or

other cable connectionstoa

trailer

must

pass

through

the

seal

between

them

and

the

body,

the

following

precautions should

be

observed

.

Close

all

windows

.

"

Adjust

heatingorcooling

systemtoforce

outside

air

into

the

vehicle

as

describedinStep1or2above

but

with

fan

set at

high

speed

.

"

Air

ventsinthe

instrument

panel

shouldbefully

open

.

Itisimportant

that

the

inside

engine

coverbeproperly

seatedtoprevent

possible

leakage

of

exhaust

fumes

into

the

vehicle

through

this

opening

.

See

"LIVING

AREA

FACILITIES

CAUTION(CARBON

MONOXIDE)"

on

page29.

The

anti-theft

ignition

switch,

located

on

the

right

side of

the

steering

column,

has

five

posi-

tions

r

STEERING

COLUMN

CONTROLS

ANTI-THEFT

STEERING

COLUMN

LOCK

A.CRUISE

COr3TRO4

6r1GArF6U:Tgt4

TURN

5L[~NAL

LEY9

C.TrLT

AWAY

STEF

;IlNq-,WHEFL

LEYtTi

1]

.

IC,NIrjON

5WITCn

E,IJO#N

BUTTON

f

HA?ARD

WAgNING

NASHEk

BUITO-14

G

TRANSM

;5SION

SELECTOR

LrVEN

Steering

Column

Controls

Anti-Theft Steering

Column

Lock

1 2

ACCESSORY-Permits

operation

of

electri-

cal

accessories

when

the

engine

is

not run-

ning.To

engage,

push

keyinand

turn

toward

you

(counterclockwise)

.

LOCK-Normal

parking

position,

locks

igni-

tion

and

provides

added

theft

protection

by

preventing

normal

operation

of

steering

wheel

and

shift

controls.Key

cannot

be

turned

to

"LOCK"

position

and

removed

until

transmission.is

placed

in

"PARK

."

OFF-Permits

turning

engine

off

without

locking

steering

wheel

and

shift

controls

.

RUN-Normal

operating

position

.

START-Permits

engagement

of

starter

.

NOTE

:

The

anti-theft

steering

column

lockisnot

a

substitute

for

the

parkingbrake.Always

set

the

parking

brake

when

leaving

the

driver's

seat

unattended

.

If

difficultyisexperiencedinturning

the

igni-

tion

key and

lock

knob

to

unlock

the

ignition,

attempt

to

turn the

steering

wheel

as

hard

as

possible

in

the

direction

the

wheels

are

turned

.

At

the

same

time

turn the

ignition-lock

knob

in

a clockwise

direction

withasmuch

effortasyou

can

apply

with

your

own

hand.Do

not

attempt

to

useatool of

any

kind

to

apply

additional

force

on

the

lock

knob,

as

this

could

break

the

knob

.

PARKING

When

leaving the

driver's

seat

unattended

:

SET

PARKING

BRAKE

FIRST.(See

note

on

page 17

.)

Place

transmission

selector

leverin"PARK

."

Turn

keytoLOCK

position

.

Remove

key

from

steering

column

lock (the

buzzer

will

remind

you)

.

Lock

entrance doorifleaving vehicle

.

STARTING

ENGINE

1.Apply

the

parking

brake

.

2.Place

the

transmission

selector in

"P"

or

"N"

("P"ispreferred).A

starter

safety

switch

is

designed

to

prevent

starter

operation

while

the transmission

selectorisin

any

drive

position

.

(Ifitis

necessarytore-start

the

engine

with

the

vehicle

moving,

place

the

selector

leverin"N"

.)

3.Depress

accelerator

pedal

and

activate

starterasoutlinedinthe

following,

for different

conditions

.

COLD

ENGINE

Fully

depress

accelerator

pedal

and

slowly

release.With

foot

off

the

pedal,

crank

the

engine

by

turning the

ignition

key

to

the

"START"

position-release

when

engine

starts.If

engine

starts

but

failstorun,

repeat

this

procedure

.

When

engineisrunning

smoothly

(approx.30

seconds) the

idle

speed

may

be

reduced

by

slightly

depressing the

accelerator

pedal

and

then

slowly

releasing

.

WARM

ENGINE

CAUTION

Extended

running of

the

engine

(5

minutesormore)

without depressing

the

accelerator

pedal,

could

cause

damage

to

the

engine

or

exhaust

system

due

to

overheating

.

Depress

accelerator

pedal

about

halfway

and

hold

while

cranking

the

engine

.

EXTREMELY

COLD

WEATHER

(BELOW

0°F.)

OR

AFTERVEHICLE

HAS

BEEN

STANDING

IDLE

FOR

SEVERAL

DAYS

Fully

depress

and

release

accelerator

pedal

two

or

three

times

before

cranking

the

engine

.

With

foot

off

the

accelerator

pedal,

crank

the

engine

by

turning

the

key

to the

start

position

-

release

key

when

engine

starts

.

IF

ENGINE

FAILS

TO

START

:

First,

fully

depress

and

release

the

accelera-

tor

pedal

several

times,

then

remove

foot

from

accelerator

pedal

and

crank

engine

.

If

engine

still

does

not

start,

fully

depress

the

accelerator

pedal

and

hold

to the

floor

while

cranking

the

engine

.

If

the

engine

has

been

flooded

with

gasoline,

it

may

start

to

run

but

not

have

enough

powertokeep

running

.Inthis

case,

continue

1

3

Transmission

Shift

Indicator

and

Speedometer

crankingwith

the

accelerator

pedal

fully

de-

pressed

until

the

engine

cleans

itselfofexcess

gasoline

and

runs

smoothly

.

If

engine

doesn't

crank

properly

due

to

a

discharged

main

battery

(automotive

bat-

tery),

place

the

battery

switchinthe

"BAT

BOOST"

position.Switch

is

designed

to

re-

turn

to

the

"BAT

NORMAL"

position

after

use

.

NOTE:Do

not

continue

cranking

the

engine

for

more

than

30

seconds

atatime

to

prevent

start-

ing

overheating

.

AUTOMATIC

TRANSMISSION

The

transmission

selector

lever

is

located

on

the

right

side

of

the

steering

column

and

the

shift

indicatorislocatedinthe

bottom

section

of

the

speedometer

clusteronthe

dash

.

"PARK"-Transmission

lock

when

parking

or

while

starting

the engine.Pull the

selector

lever

towards

you

to selectorrelease

this

position.Never

move

the

selector

lever

to

"PARK"

position

unless

the

vehicleiscom-

pletely

stopped."NEUTRAL"

is

the

only

other

positioninwhich

your

vehicle

may

be

started

.

REVERSE

"R"-For

backing

the

vehicle

.

Bring

the

vehicle

to a

complete

stop

before

moving

the

selector

lever

into

Reverse

.

NEUTRAL

"N"-

The

out-of-gear

position

.

Itisprovided

for

startingastalled

engine

Turn

Signal

Lever

while

the

vehicle

is

in

motionorrunning

the

engine while

standing

with

brake

applied

.

DO

NOT

COAST

IN

NEUTRAL

.

DRIVE

RANGE

"D"-

The

driving

range

for

city

and

highway

driving.This

position

per-

mits the transmission

to

operate

through

its

complete

range

of gear

ratios

and

to

select

automatically

the

proper

ratio

for

road

and

load

conditions

.

SUPER

RANGE

"S"-Used

when

super

per-

formanceisneeded

for

increased

acceleration

in

traffic, hill

climbing,

or

"Engine

Braking"

down-hill.The

selector

lever

may

be

moved

from

"D"

to "S"

and

vice

versa,

under

most

operating

conditions."SUPER"

should

not

be

usedatspeeds

above

75

MPH

.

LOW

"L"-Available

for

heavy

pulling

through

mud

or

sand

and

for

engine

braking

when

descending

steep

hills.The

selector

lever

may

be

moved

to

"L"atany

speed

but

the

transmission

will

only

shift

automatically

into

Low

range

when

the

vehicle

speed

is

under

approximately40MPH

.

The

trans-

mission

will

not upshift

from

Low

range

as

long as the

selector

leverisin

the

"L"

position

.

CAUTION

Before

descending

a

steep

or

long

grade,

down

a

ma+ontain

or

hrilside,

reduce

speed

and

shift

into

a

lower

gear

.

Use

the

lower

gear

rangesxocon-

trol

vehicle

speed,

Avoid

prolonged

or

frequent

application

of

the

brakes

which

could

cause

overheating

and

thus

reduce

brake

effectiveness.Use

caution

1

4

when

shifting

into

lower

rangeorlower

gear

on

slippery

surfaces

with

vehicle

moving-abrupt

engine

braking

action

could

cause

the

front

wheels

to

skid,

possibly

leading

to

lossofvehicle

con-

trol

.

FORCED

DOWNSHIFT

-

When

additional

acceleration

is

desiredtopass

moving

ve-

hicles

or to

climb

steep

grades

at

speeds

between

approximately

35 and 65

MPH,

the

transmission

can

be

downshiftedbydepress-

ing

the

accelerator

pedal

completelytothe

floor

.Itis

also possible

to

obtain

a forced

downshift

in

"DRIVE"

rangeatspeeds

under

3 5

MPH

by

depressing

the

accelerator

pedal

part

way

down

.

TURN

SIGNAL

AND

LANE

CHANGE

FEATURE

Whenever

a

rightorleft

turnisintended,

when

changing

lanes,

or

when

pulling

away

from

the

curb,

use

the

turn

signals

.

FULL

TURN

-

For

normal

turns,

move

the

turn

signal

levertoposition

"A"

for

right

turn

and

"B"

for

left

turn.Lever

will

remain

in

position

without

manual

effort

until

the

turniscompleted,

then

cancel

automatically

.

LANE

CHANGE

-

Move

lever

to the detent

position

"C"

for

change

to

right

lane

or to

"D"

for

change

to

left

lane.Hold

lever

in

position

until

lane

maneuver

is

completed,

then

release

.

Lever

will

returnto"OFF"

position

.

HAZARD

WARNING

FLASHER

For

operation of

hazard

warning

flasher,

see

"In

CaseofEmergency"

later

in

this

manual

.

HORN

CONTROL

The

horn

is

actuatedbydepressing

the

circu-

lar

shaped

button

locatedinthe centerofthe

steering

wheel

.

POWER

STEERING

If

the

steering

system

power

assist

fails

due

to

some

malfunction,orbecause

the

engine

has

stalled,

the

vehicle

can

still

be

steered.However,

much

greater

effortisrequired, particularly

in

sharp

turns

.

TILT

STEERING

WHEEL

The

tilt

steering

wheel

can

be

tiltedupabove

normal

positiontoprovide

additional

room

for

entrance

and

exit as

well

as

selected

driving

positions

above

or

below

normal

height

.

The

tilt

mechanism

is

operated

by

lifting

up

on

the small

control

lever,onthe

left

side of

the

steering

column

just

below

the

directional

signal

lever,

then

moving

the

steering

wheel

to

the

selected

position

and

releasing

the

lever

.

CRUISE

CONTROL

The

optional Cruise

Controlisan

automatic

speed

control

system

whichisdesignedtoallow

the

vehicletohold a

selected

speed

of

approxi-

mately

30

MPH

or

higher-depending

on

engine

limitations-thus

increasing

comfort

and

econ-

omy

on

turnpikes,

and

other

non-congested

highways

.

TO

OPERATE

-

The

Cruise

Control engage-

ment

buttonislocated

in

the

end

of the

turn

signal

lever.Accelerate

the

vehicle

to

the

desired

speed

and

momentarily

push

in

the

engagement

button,

take

your

foot

off

the

accelerator

and

this

speed

willbemaintained

.

TO

RESET

ATA

FASTER

SPEED

-

Ac-

celerate

the

vehicle

to

the

desired

higher

speed,

push

in

the

engagement

button

fully

and

release

slowly

.

TO

RESET

AT

A

SLOWER

SPEED

-

Depress

the

engagement

button

fully

and

HOLD

.

Allow

vehicle

to

decelerate.When

vehicle

reaches

desired

speed,

release

the

engagement

button

slowly

.

FOR

PASSING

-

You

can

increase

your

speed

by

depressing the

accelerator

pedal

.

When

you

remove

your

foot

from

the

pedal,

the

vehicle

will

slow

down

to

the

cruising

speed

set

prior

to the

acceleration

.

TO

DISENGAGE-Lightly

apply

the

brake

pedal to

disengage

system

.

Tilt

Steering

Wheel

Cruise

Control

Lever

CAUTION

DO

NOT

use

the

guise

Control

when

conditions

are

not

suitable

for

rnuinluin-

inn

o

constant

speed,

such asinheavy

or

varying

traffic,oronwinding

or

slip-

pery

roods.With

the

Cruise

Central

en-

ga9edrremoving

foot

from

the

arrel-

erptor

pedal

does not permit

engine

speed

to

return

to idle_

PARK$NC

BRAKE

BRAKE

PEDAL

POWER

BRAKE

SYSTEM

This

vehicleisequipped

withaDual

Hy-

draulic

Split

SystemWith

Power

Assist.It

is

also

equippedwith

disc

type

brakesonthe

front

wheels

and

drum

type

brakes

on

the

tandem

rear

wheels

.

NOTE:Operation

of

the

brake

system

warning

lightiscovered

(on

page

19)

(in

the

section

on

"Instrument

Panel

and

Controls")

.

CAUTION

Driving

through

deep

water

may

w

the

brakes

and

adversely

affect

bra

performance

so

that

the

vehicle

will

r

Vehicle

Floor

Controls

FLOORCONTROLS

1

6

f

pull to

the

rightorlefi.Applying

the

brakes

lightly

will

indicate

whether

they

have

beensoaffected,Todry

them

quickly,

lightly

apply

the

brakes

while

maintainingasafe

forward

speed

with

an

assured

cleor

distance

ahead

until

brake

performunce

returnstonormal

.

On

your

vehicle,ifpower

assisttothe

brakes

is

interrupted

duetoa

stalled

engineorsome

malfunction,

two

or

more

brake

applications

can

normally

be

made

using

reserve

power

.

If

the

brake

pedalisheld

down,

the

system

is

designed

to bring the

vehicle

to

a

full

stop

on

reserve

power.However,

the

reserve

power

SELF-ADJUSTING

BRAKES

Brakes

on

this

vehicle

(except

for

the

Park-

ing

Brake)

are

self-adjusting,

designed

to elimi-

nate

periodic

adjustments

.

Drum

brake

adjustments

are

made

automati-

cally

as,the

brakes

are

applied

while

vehicle

is

moving

backwards

.

Disc

brake

adjustmentismade

automatically

with each

brake

application

.

If

excess

brake pedal

travel

develops,

drive

alternately

backward

and

forward

several

times

and

apply

brakes

firmlyineach

direc-

tion

.

See

your

dealerifnormal

pedal

travelisnot

restored,orif

there

is

a rapid

increase

in

pedal

travel,

which

could

beasignofother

brake

trouble

.

NOTE:"Riding

The

Brake"

by

resting

your

foot

on

the

brake

pedal

when

not

intendingtobrake

can

cause

abnormally

high

brake

temperatures,

excessive

lining

wear

and-

possible

damage

to

brakes

.

REMINDER:Front

disc

brakes

have

a

built-in

wear

indicator

thatisdesigned

to

makeahigh

frequency,

squealing,

or

cricket-like

warning

sound

when

the

linings

are

worn

to

where

re-

placement

is

required.The

sound

will

occur

intermittentlyorcontinuously

when

wheels

are

rolling,

but

will

disappear

when

the

brake

pedal

is

applied

firmly.See

also

the various

brake

checks

listedinthe

maintenance

schedule

folder

.

PARKING

BRAKE

To

set

parking

brake,

pull

up

the

handle

locatedonthe

floor

against

the

left

wall,

be-

low

the

instrument

panel

.

For

maximum

holding

power,

depress regular

brake

pedal

with

the

right

footatthe

same

time

.

To

release

parking

brake

push

the

handle

down

.

1

7

Parking

Brake

Control

the

level.If

"torque

lock",

as this

condition

is

called,

does

occur,itmay

be

necessary

to

have

another

vehicle

nudge

this

vehicle

up

hill,

to

take

some

of

the

pressure

off

the

transmission

while the

driver

pullsonthe

transmission

selec-

tor

lever

.

HEADLIGHT

DIMMER

SWITCH

To

obtain

highorlow

beam

headlights,

push

the

foot

dimmer

switch

located

on

the

floor

to

the

leftofthe

brake

pedal.Each

time

the

switch

is

depressed,

the

light

beam

changes.A

headlamp

Instrument

Panel

18

beam

indicator,onthe

face

of the

speedometer,

is

designedtolightupwhen

the

headlights are

on

high

beam

.

HEADLIGHT

"FLICKER"

The

headlight

circuits

are protected

by

a

circuit

breakerinthe

light

switch

.

An

overload

on

the

breaker

will

cause

the

lights

to

"flicker"

on

and

off,

or in

some

casestoremain

off.If

this

condition

develops,

have

your

headlight

electrical circuit

checked

immediately

.

1.WINDSHIELD

WIPER

CONTROL

7.OIL

PRESSURE

GAUGE

13

.

GENERATOR

LIGHT

2.SPEEDOMETER

8.WARNING

LIGHTS

14

BRAKE

SYSTEM

WARNING

LIGHT

3.HIGH

BEAM

INDICATOR

9.HEATER/A.C.

CONTROLS

15.FUEL

SELECTOR

SWITCH

4.ODOMETER

10

.

LIGHT

SWITCH

16.BATTERY

BOOST

SWITCH

5.TEMPERATURE

GAUGE

11.WINDSHIELD

WASHER

17.RADIO&CONTROLS

6.FUEL

GAUGE

12.SHIFT

INDICATOR

18.CIGAR

LIGHTER

INSTRUMENT

PANEL

AND

CONTROLS

SPEEDOMETER

AND

ODOMETER

The

speedometer

indicates

the

forwardspeed

of

the

vehicleinmiles-per-hour.The

odometer

registers

the

accumulated

mileage

the

vehicle

has

been

driven.Also,

locatedinthe

speedome-

ter

cluster

are

the turn

signal

indicators

which

show

direction

and

proper

operationofthe

turn

signals,

the high

beam

indicator

light,

and

the

shift

indicator

.

FUEL

GAUGE

This

gaugeshows

the

approximate

fuel

level

in

the

main

tank

when

fuel

selector

switchisin

the

"FUEL

MAIN"

position,

and

the

fuel

level

in

the

auxiliary

tank

when

fuel

selector

switch

isinthe

"FUEL

AUX"

position.The

pointer

will

indicate

the

correct

positions

only

when

the

ignition

isinthe

"ON"

position

.

Since

both

fuel

tanks

are

interconnected,

the

indicated

levelisdesigned

to

read

the

same

(with

the switch

in either

position)

until

ap-

proximately

60%

of

the

total

fuel

capacity

has

been

used.See

"Fuel

Selector

Switch"

later

in

this

section

.

TEMPERATURE

GAUGE

This

gauge

registers

the

temperature

of

the

engine

coolant.The

center area

of

the

water

temperature

gauge

marks

the

normal

operating

range

.

However,ifthe

needle

moves

beyond

the

center

area

marks

into

the

"H"

sideorhot

area

of

the gauge, stop

the

engineassoonaspossible,

and

remain

stopped

until

the

cause

of the over-

heating

is

determined

.

OIL

PRESSURE

GAUGE

This

gauge

registers

engine

oil

pressure.The

consistencyofthe

oilina

cool

engine

will

cause

a

high

reading

when

the

engineisfirst

started

.

As

the

engine

warms,

the pressure

will

recede

to

normal

.

With

the engine

warmed

uptonormal

operating

temperature,

minimum

pressure

at

idle

shouldbeslightly

above

the

"L"

graduation

(8

PSI)

.

At

normal

operating

speeds,

minimum

pressure

should

be

between

the

second

and

middle

graduations

(35

PSI).Should

the

pres-

sure

drop

below

these

minimums,

stop the

en-

gine

immediately

and

check

the

causeofthe

low

1

9

oil

pressure.This

couldbethe

result

of a

danger-

ously

low

oil

levelinthe

crankcase.Driving

the

vehicle

with

low

oil

pressure

can

cause

extensive

engine

damage

.

CHARGING

SYSTEM

WARNING

LIGHT

Located

to

the

right

of

the

temperature

gauge

is

the

charging

system

warning

light.A

red

light

"GEN"

will

appear

with

the

ignition

key

in

the

"ON"

position

and

the

engine

not

running.This

light

lets

you

know

the

warning

signalisoper-

ational.Should

the

light

failtocome

on,

see

your

MotorHome

dealer.When

the engine

is

started,

the

warning

light

should

go

out

and

re-

main

out.If

the

light

remains

on

when

engine

is

running,

have

your

dealer

locate

and

correct

the

trouble as

soonaspossible

.

BRAKE

SYSTEM

WARNING

LIGHT

The

service

brake

systemisdesignedsothat

half

of the

brake

system

will

provide

some

braking

actioninthe

eventofa

hydraulic

leak

in

the

other

half

of the

system.If

the

red

warn-

ing

light,

located

to the

leftofthe

oil

pressure

gauge,

glows

continuously

when

the

engine

is

running

and

after

the

brakes

have

been

firmly

applied,itmay

indicate

that

there

isamalfunc-

tion in

one

part of the

brake

system

.

Asa

check

on

bulb

condition

the

light

should

glow

during

engine

starting

.

Have

system

repairediflight

does

not

come

on

during

check

.

This

warning

lightisnotasubstitute

for

the

visual

checkofbrake

fluid

level

required as

partofnormal

maintenance

.

r

Speedometer

and

Gauge

Clusters

Warning

Light

Cluster

WHAT

TO

DO

IF

LIGHT

GLOWS

RED

:

The

service

brake

systemispartially

inop-

erative

.

1.Pull

off

the

road

and

stop,

carefully-re-

membering

that

:

Stopping

distances

may

be

greater

.

Greater

pedal

effort

may

be

required

.

Pedal

travel

may

be

greater

.

2.Try

out

brake

operationbystarting

and

stoppingonshoulderofroad-then

If

you

judge

such

operationtobe

safe,

pro-

ceed

cautiously

at a

safe

speedtonearest

service

outlet

for

repair,

or

Have

vehicle

towedtodealer

for

repair

.

Continued

operation of

the

vehicle

in this

con-

ditionisdangerous

.

Windshield

Wiper,

Washer,

and

Headlight

Controls

2

0

TELL-TALE

WARNING

LIGHT

CLUSTER

A

clusterofindicator

lightsislocated

just

to

the

left

of the heater

controls.These

are de-

signed to

inform

the

driverofthe

status

of

certain

systemsorconditionsofwhichheshould

be

aware.Among

these

are

"CRUISE"

(Optional

Equipment)

-

This

indicator

is

designedtoglow

GREEN

when-

ever the Cruise

Control

System

is

engaged

and

working

.

"DOOR"-The

door

lightisdesignedtowarn

the

driver

that the

entrance

doorisnot

prop-

erly

closed

.

LOW

AIR-The

low

air

light

is

designed

to

warn

the

driver

that

air

pressure in the

rear

suspension

systemisabnormally

low.(See

"Emergency

Operation,"

page

26,

laterinthis

section

.)

"PARK

BRAKE"

-As

a

reminder,

the

"PARK

BRAKE"

brake

reminder

light

is

de-

signedtoglow

whenever

the

parking

brake

controlisnot

fully

released

and

the

ignition

ison.
"LOW

FUEL"

(Optional

Light)-The

low

fuel

warning

lightinyour

vehicleisdesigned

to

comeonwhen

the

main

tank

has

less

than

five

gallons

of fuel

left

and

the

fuel

selector

switchisin

the

"FUEL

MAIN"

position

.

If,

at

any

point

after

this,

the

fuel

selector

switchischanged

to

"FUEL

AUX"

the

"LOW

FUEL"

warning

light

will

then go

out

and

come

on

again

when

the

fuel in

the

auxiliary

tank

goes

below

five

gallons

.Atthis

point

both

fuel

tanksofyour

vehicle

are

nearly

depleted

.

"SET

POWER

LEVEL

TO

TRAVEL"

(Op-

tional

Light)

-This

lightisdesignedtoinform

the

driver

that

the

optional

power

level

con-

trols

shouldbeset

to the

"TRAVEL"

position

before

driving

the

vehicle

(alsoabuzzer

will

sound

for

approximately10seconds).This

will

allow

your

vehicle's

air

suspension

sys-

tem

to

automatically

maintain

the

proper

suspension

pressure

while

the

vehicleisbeing

driven.(See

"Power

Level

System"

later

in

this

section

.)

HEADLIGHT

SWITCH

The

headlight switch

serves

four

functions

:

1

.

Pulling

the

switch

half-way

out provides

parking

lights,

instrumentpanel

lights, tail lights,

side

marker

lights,

and

clearance

and

identifi-

cation

lights

.

2.Pulling

the switch

all

the

way

out

provides

all

driving

lights,-this

includes

headlights,

plus

those

mentioned

above

.

3.To

dim

instrument

panel

lights,

turn

switch

knob

clockwise

.

4.To

operate

the

dome

lights,

turn

switch

knob

fully

counterclockwise

.

WINDSHIELD

WIPER

LEVER

The

windshield

wipers

are

variable

speed,

and

hydraulically

powered.The

lever

control,

on the

left

side

of

the

instrument

panel

varies

the

speed

of

the

wiper

blades

from

stop

("DOWN"

position)

to fast

(extreme

"UP"

position)

.

WINDSHIELD

WASHERS

The

windshield

washers

are

controlledbythe

washer

switch

located

under

the

windshield

wiper

lever

.

To

operate the washers,

turn

the

wipers

to

an

ON

position,

then

push

down

on

the

switch

until

the desired

amount

of

washer

fluid

has

been

directed

to

the

windshield

.

Check

washer

fluid

level

regularly-do

it

frequently

when

the

weather

is

bad

.

Use

a

fluid

such

as

GM

OPTIKLEEN

to

prevent

freezing

damage,

and

to

provide

bet-

ter

cleaning

.

Do

not

use

radiator

anti-freezeinwindshield

washer;it

could cause paint

damage

.

In

cold

weather,

warm

the

windshield

with

defrosters

before using

washer

-

to

help

prevent

icing

that

may

seriously

obscure

vision

.

FUEL

SELECTOR

SWITCH

The

fuel

selector

switch,

located

below

the

warning

light

cluster,

has

two

positions-"FUEL

MAIN"

and

"FUEL

AUX

."

This

switch

allows

the

driventochange

the

fuel

pick-up

and

fuel

gauge

sending

unit

from

the

main

tank,asit

2

1

Fuel

Tank

and

Battery

Switches

goes

empty,

to

the

auxiliary

tank

which

will

normally

contain7to9gallons

of fuel

.Itis

recommended

that

any

time

the

fuel

system

is

filled,

this

switchbeputinthe

"FUEL

MAIN"

position

and

left

there

until

auxiliary

fuel

is

needed

.

BATTERY

BOOST

SWITCH

The

GMC

Dual

Battery

System

provides

power

from

two

batteriestothe

vehicle's

12-volt

electrical

system

eitherincombination

or

singu-

larly.The

components

usedtoprovide

charging

and/or

switching

are

conventional,

except

for

a

diode

assembly

with

which

both

batteries

will

receive

charging

current

whenever

the

vehicle

is

running.The

diode

assembly

has separate

out-

putstothe

two

batteries

and

provides

isolation

between

the

batteries

and

their

associated

cir-

cuits

whenever

the

engineisnot

running

.

The

main

battery (or

automotive

battery)

supplies

power

to

the

chassis

circuit

; i.e.,

engine,

external

lights,

etc.The

auxiliary

battery

(liv-

ing

area

battery)

powers

the

MotorHome

living

area;i.e.,

internal

lights,

refrigerator,

etc

.

When

additional

power

is

needed

for

either

battery

circuit,

hold

switch

momentarily

in

"BAT

BOOST"

position.After

use,

switch

is

designed

to

return

to the

"BAT

NORMAL"

position

.

NOTE:If

the battery boost switchisretained

in

the

"BAT

BOOST"

position

for

extended

periods

this

can

resultinboth

batteries

being

discharged

.

Automotive

Heating

System

Controls

(with

Type1Fan

Switch)

The

auxiliary

(living

area)

battery

will

re-

charge

itself

whenever

the

motor

generator

is

running, or

whenever your

MotorHome

is

con-

nectedtoan

external

power

source

(see

page

30),

in

additiontobeing

recharged

while

the

vehicle's

engineisrunning

.

CIGAR-CIGARETTE

LIGHTER

Push

the

lighterinall

the

way

to

operate

.

When

it is

heated

sufficientlytouse,

it is

de-

signed to "snap"

backtonormal

position

with

noticeable

sound.Avoid

holding

the

lighterinby

hand

whileitis

heating

.

For

added

safety,

the

cigar-cigarette

lighter

hasaheat-sensitive

terminal

whichisdesigned

to

melt

and

break

the

circuitifthe

lighter

be-

comes

overheated

.

HEATING

SYSTEM

(WITHOUT

AUTOMOTIVE

AIR

CONDITIONER)

The

heating

system

controls

are located

on

the

instrument paneltothe

rightofthe

steering

column.There

are three separate

controls

;

"FAN"

lever

to

control

speedofblower

operation

;

"RECIRC,"

"COLD,"

"HOT"

levertocontrol

temperatureofair;"OFF,"

"VENT,"

"HEATER,"

"DEF"

levertocontrol

directionofair

flow

.

The

"FAN"

lever

works

vertically

and

the other

two

levers

work

horizontally.The

three

levers

may

be

placedinany

combined

positiontodeliver

the climate conditions

most

desirableatany

given

time

.

"

TYPE

1

"FAN"-The

fan switch

has

four

positions;"OFF"

and

three

blower

speeds

rangingto"HI"

and two

unmarked

posi-

tions

between

"OFF"

and "HI."The

fan

will

not operate

unless

the

top

lever

has

been

moved

from

the

"OFF"

position,

andinorder

2

2

Automotive

Heating

System

Controls

(with

Type 2

Fan

Switch)

to

operate

the

fan

in

the

"HI"

position

the

engine

mustberunning

.

"

TYPE

2

"FAN"-The

fan

switch

has

four

positions;"LO" and

three

blower

speeds

rangingto"HI."Fan

will

operate

whenever

the

keyisin

the

"RUN"

or

"ACCESSORY"

position.In

ordertooperate

the

faninthe

"HI"

position

the

engine

mustberunning

.

"

"OFF,"

"VENT,"

"HEATER,"

"DEF"-With

the

leverinthe

"OFF"

position

the

system

is

off.With

the

leverinthe

"VENT"

position

100%

outside

air

enters

the

driver's

com-

partment

.

The

air

enters

through

the

dash

mounted

outlets

and

through

the

heater out-

lets.Temperatureofincoming

air

maybecon-

trolledbymoving

the

"RECIRC,"

"COLD,"

"HOT"

(temperature)

levertodesired

posi-

tion.Any

oneofthe

blower

speeds

may

be

selected

.

With

the

leverinthe

"HEATER"

position,

air

will

flow

through

the

heater

floor

distribu-

tor

outlet

(with

slight

flow

of

airtothe

de-

froster

outlet).For

maximum

heat,

move

temperature

leverto"HOT"

position

and

"FAN"

switch

leverto"HI"

position.Heat-

ing

system

output

canbevaried

by moving

temperature

lever

and

"FAN"

levertodiffer-

ent

positions

.

With

the

leverinthe

"DEF"

position,

the

sys-

tem

operates the

same

as in

the

"HEATER"

position

except

mostofthe

air

flow

will

be

through

the

defroster

outletsatthe

wind-

shield

.

"

"RECIRC,"

"COLD,"

"HOT"-This

lever,

used

in

conjunction

with

the

system

selector

lever

("OFF,"

"VENT,"

"HEATER,"

"DEF")

and

the

"FAN"

switch

lever,

will

control

the

tem-

peratureofthe

output

air

being

distributed

.

Automotive

Air

Conditioner

Controls

(with

Type1Fan

Switch)

Clear

windshield,

rear

window,

outside

mir-

ror,

and

all

side

windows

of

ice

and

snow

before

driving vehicle

.

Operate

bloweron"HI"

forafew

seconds

before

moving

the

vehicle,toclear

the

air

intakeofsnow

.

AUTOMOTIVE

AIR

CONDITIONER

The

Automotive

Air

Conditioning

System

offers

year-round

driving

comfort.In

addition

to

providing

circulation

of cool

air

during

hot

weather,

the

system

can

provide

warm

air

in

cold

weather

and

dehumidify

outside

air

in

humid

weather

.

Combined

air

conditioning

and

heating

sys-

tem

controls

are located

on

the

instrument

panel

in

the

upper

right-hand

corner.There

are three

separate

controls;"FAN"

lever,tocontrol

speed

of

blower

;

"OFF,"

"A/C,99"VENT,"

"HEATER,"

"DEF"

levertocontrol

directionofair

flow

and

which

systemisto

be

operated;"RECIRC,"

"COLD,"

"HOT"

levertocontrol

the

tempera-

ture of

the

air.The

three

levers

may

be

placed

in

many

combined

positionstodeliver

the

cli-

mate

conditions

most

desirableatany

given

time

.

TYPE

1

"FAN"-The

fan

switch

has

four

positions;"OFF"

and

three

blower

speeds

ranging

from

"LO"to"HI."The

fan

will

not

operate

unless the

top

lever

has

been

moved

from

the

"OFF"

position,

and

in

order

to

operate

the

fan

in

the

"HI"

position

the

engine

mustberunning

.

TYPE

2

"FAN"-The

fan

switch

has

four

positions;"LO"

and

three

blower

speeds

rangingto"HI."Fan

will

operate

whenever

23

Automotive

Air

Conditioner Controls

(with

Type2Fan

Switch)

the

keyisin

the

"RUN"

or

"ACCESSORY"

position.In order to

operate

the

faninthe

"HI"

position

the

engine

mustberunning

.

"OFF,"

"A/C,"

"VENT,"

"HEATER,"

"DEF"

-With

the

leverinthe

"OFF"

position

the

systemisoff

.

With

the

leverinthe

"A/C"

position

(and

the

"RECIRC,"

"COLD,"

"HOT"

leverat"RECIRC"

position)

the

air

conditioning

system

is

activated

and

the

blower

automatically

goesto"HI"

speed

pro-

viding

the

engineisrunning.This

position

uses

80%

recirculated

air.This

setting

will

provide

maximum

cooling.In

combination

with

"A/C"

setting

moving

the

tempera-

ture

lever

to the

"COLD"

position

provides

100%

outside

air.Further

movementofthe

temperature

lever

to

the

right

(toward

"HOT"

position)

will

heat the

dehumidified

air

to the

desired

temperature.The

"FAN"

switch

can

be

settomeet

air

flow

require-

ments

.

With

the

leverinthe

"VENT"

position,

100%

outside

air

enters

the

driver's

com-

partment.This

settingisfor

use

during

peri-

odsofless

severe heat

and

humidity,

air

flow

is

identical

to

air

flowin"A/C"

position,

how-

ever,

the

air

conditioning

compressorisnot

operating.Temperatureofincoming

air

may

be

controlled

by moving

the

temperature

levertothe

desired

position

.

Any

oneofthe

blower

speeds

may

be

selected

.

With

the

leverinthe

"HEATER"

position,

air

will

flow

through

the

heater

floor

dis-

tributor

outlets

(with a

slight

flowofair

to

the

defroster

outlet).For

maximum

heat,

move

the

temperature

leverto"HOT"

posi-

tion

and

"FAN"

switch

lever

to

"HI"

position

.

Heating

system output

can

be

varied

by

moving

temperature

lever

and

"FAN"

lever

to different

positions

.

With

the

lever

in

"DEF"

position,

system

op-

erates

the

same

as

in

the

"HEATER"

position

except

mostofthe

air

flow

willbethrough

the

defroster

outlets

at the

windshield

.

"RECIRC,"

"COLD,"

"HOT"

-This

lever,

used

in

conjunction

with

the

system

selector

lever

("OFF,"

"A/C,""VENT,"

"HEATER,"

"DEF")

and

the

"FAN"

switch

lever,

will

control

the

temperatureofthe

output

air

being

distributed

.

CAUTION

Operate

in

"DEF"

po5ilion

for

30

sec-

onds

before

switching

I*

"A/C

."

This

will

remove

humid

air

from

the

system

and

minimize

rapid

fogging

of

the

glass

which

can

occur

if

humid

air

is

blown

onto

a

cool

windshield_

Clear

windshield,

rear

window,

outside

mir-

rors,

and

all

side

windows

of

ice

and

snow

before

driving vehicle

.

Operate

blower on "HI"

for

a

few

seconds

before

moving

the

vehicle, to

clear

the

air

intakeofsnow

.

RADIOS

AND

TAPEDECK

PUSH

BUTTON

"AM"

RADIO

The

"ON-OFF"

switch

is

on

the

left-hand

center

knob

with

the

volume

control.The

left-

hand

outside

knob

varies

the

tone

response

of

the

receiver.The

right-hand

center

knob

is

used

to

select

the

station

desired.The

right-hand

outside

knob

adjusts

the

volume

of

front

and

rear

speakers

.

2

4

ANTENNA

AM-FM

Stereo

Radio

with

Tape

Deck

(Tape

Removed)

In

additiontothe

manual

controls,

this

radio

provides

five

push

buttons

with

whichtoauto-

matically

select

pre-set

stations.To

pre-set,

pull

the

push

button

"out"asfarasit

will

go,

tune

in

the

desired

station

manually,

and

then push

the

button

"in

."

Repeat

this

operation

for

each

push

button

.

AM-FM

RADIO

In

addition

to

providing

standard

AM

recep-

tion,

this

set

permits

youtoreceive clear

static-

free

FM

broadcasts

.

Move

the

slide

bar,

above

the

push

buttons

to the

rightorleft

to select

AM

or

FM

reception.All

other

controls

remain

the

same

as

described

for

push

button

radios

.

FM

broadcasts

may

be

received

as

faras25

miles

from

the

sending

station,

depending

on

the

powerofthe

station

and

the

existing

terrain

.

In

fringe

areas,

it

may

be

possibletoretune

the

radio

slightly

to

maintain

peak

reception.If

not,

retune

to a

closer

or

stronger

FM

station

or switch to

AM

operation.Push

buttons

may

be

set for

both

AM

or

FM

stations

as

follows

:

Place

slide

barinAM

position

.

Pull

push

button

out as

farasit

will

go,

tune

in

desired

AM

station

manually

and

then

push

button

in to

LOCK-IN

position

.

Repeat

for

each

remaining

push

button

.

Place

slide

barinFM

position

and

repeat

procedures

outlined

for

AM

band

setting

.

IMPORTANT

:

Bands

should not

be

changed

if

push

button

is

unlocked

or

radio

may

be

damaged

.

The

radio

antennaismounted

on

topofthe

vehicle.If

necessary,

adjustments

for

maximum

antenna

effectivenessonAM

can

be

made

by

your

authorized

GMC

MotorHome

dealer

.