EasyManua.ls Logo

GMC MOTORHOME 1978 User Manual

GMC MOTORHOME 1978
147 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
A
Word
To
The
GMC
Motorhome
Owner
. . .
Congratulations
on
your
purchase
of a
GMC
Motorhome
.
You
have
opened
the
way
to
an
endless variety
of
happy
holidays
.
This
manual
has
been
prepared
to
acquaint
you
with
the
operation
and
maintenance
of
your
Motorhome,
and
to
provide
important
safety
information
.
It
is
supplemented
by
two
convenient
folders
which
provide
additional
information
on
vehicle
maintenance
and
warranties
.
We
urge
you
to
read
these
three
publications
carefully
.
Follow
the
recommen-
dations
to
help
assure
the
most
enjoyable
and
troublefree
operation
of
your
vehicle
.
While
reading
this
manual
you
will
notice
that
some
specifications
are
given
in both
metric
and
customary
units
.
Where
precise
accuracy
is
not
needed,
some
conversions
have
been
rounded
to
even
numbers
for
your handy
use
.
An
Operating
Manual
Appendix
is
provided
with
vehicles
built
after
January
1,
1978,
which
have
a
gross
vehicle
weight
rating
(GVWR)
in
excess
of
10,000
pounds
.
This
Appendix
covers
items
relating
to
com
pliance
with
Federal
noise
emission
standards
and
includes
the
noise
emission
warranty
.
It
also
contains
information
on
maintenance
of
the
noise control
system
and
lists
acts
which
are
considered
to
be
tampering
with
the
system
.
As
noted
in
the
Appendix, tampering
with
the
noise
control
system
is
prohibited
by
Federal
Law
.
When
it
comes
to
service,
remember
that
your
GMC
Motorhome
Dealer
knows
your
vehicle
best
.
Your
dealer
is
interested
in
your
com-
plete
satisfaction
.
Return
to
him
for
Guardian
Maintenance
Service
and
any
other
repairs
you
may
require
.
To
assist
dealers
in
handling
your
needs
GMC
Truck
and
Coach
maintains
a
number
of
Zone
Offices
throughout
the
country
.
If
you
have
a
problem
that
has not
been
handled
to
your
satisfaction,
please follow
the
procedure
described
under
the
"Owner
Assistance"
section
.
Thank
you
for
choosing
a
GMC
Motorhome
.
We
extend
our
best
wishes
for
many
years
ofpleasant
traveling
.
Cordially,
General
Sales
Manager

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the GMC MOTORHOME 1978 and is the answer not in the manual?

GMC MOTORHOME 1978 Specifications

General IconGeneral
BrandGMC
ModelMOTORHOME 1978
CategoryMotorhomes
LanguageEnglish

Summary

Important Information on Vehicle Loading

Maximum Front and Rear Axle Weights (As Manufactured)

Specifies the maximum weight limits for the front and rear axles.

VIN (Vehicle Identification Number) Plate

Describes the VIN plate and its information regarding vehicle weight ratings.

Effect on Warranty

Details how overloading can void the new vehicle warranty.

Before Driving Your Motorhome

Driver Check List

Comprehensive checklist for pre-driving inspections inside and outside the vehicle.

Seats

Driver and Front Passenger Seats

Details on adjusting and swiveling the driver and front passenger seats.

Belt Restraints

Guidelines for using seat belts to ensure safety during travel.

Child Restraint

Trailer Towing

Trip Tips

Driving Tips

Starting and Operating Vehicle

Engine Exhaust Gas Caution (Carbon Monoxide)

Information on carbon monoxide hazards and precautions.

Steering Column Controls

Anti-Theft Steering Column Lock

Explanation of the steering column lock positions and operation.

Guard Against Theft

Measures to prevent vehicle theft, focusing on securing the vehicle.

Parking

Starting the Engine

If Engine Fails to Start:

Troubleshooting steps for when the engine does not start.

Automatic Transmission

Turn Signal Lever

Cruise Control

Floor Controls

Power Brake System

Details on the dual hydraulic split system with power assist.

Self Adjusting Brakes

Explanation of the self-adjusting brake system.

Parking Brake

Information on applying and releasing the parking brake.

Instrument Panel and Controls

Speedometer and Odometer

Description of the speedometer and odometer functions.

Fuel Gauge

Explanation of the fuel gauge operation and reading.

Temperature Gauge

Information on the engine coolant temperature gauge.

Oil Pressure Gauge

Details on the engine oil pressure gauge and its readings.

Charging System Warning Light

Explanation of the charging system warning light.

Brake System Warning Light

Information on the brake system warning light and its function.

Tell-Tale Warning Light Cluster

Overview of various indicator lights on the instrument panel.

Voltmeter

Explanation of the voltmeter and what its readings indicate.

Headlight Switch

Windshield Wiper Lever

Windshield Washers

Automotive Heating and Air Conditioning System

For Cooling

Instructions for operating the air conditioner for cooling.

For Ventilating

Instructions for using the system for ventilation.

Radio and Tape Player

Electro-Level System

120-Volt to 12-Volt Converter and Battery Charger

External Power

Motor Generator

Exterior Receptacle

Testing the Exterior Receptacle

Procedure for testing the exterior ground-fault circuit interrupter receptacle.

Living Area Water System

Filling Water Tank

External Water Connection

Water Pump

Water Heater

Kitchen Facilities

All-Electric Refrigerator

Information on the refrigerator's operation, tips, leveling, and defrosting.

Power Range Hood

Operation and cleaning of the power range hood.

Kitchen Range/Oven

Details on operating and cleaning the LP gas kitchen range and oven.

LP Gas Cook Top

Microwave Oven

Precautions to Avoid Possible Exposure to Excessive Microwave Energy.

Safety precautions to prevent exposure to microwave energy.

Safety

Features that ensure microwaves remain inside the oven.

Microwave Cooking

Microwave Cooking Techniques

Techniques for adapting recipes and cooking with microwaves.

How to Use the Three Microwave Power Levels

Foods Not Recommended for Microwave Cooking

Selecting Proper Cooking Utensils

Kitchen Sink and Faucet

Water Treatment Unit

Bathroom Facilities

Standard Toilet

Information on the standard toilet's operation and tips.

Recirculating Toilet

Bathroom Sink and Shower Control Valve

Ventilation

Roof-Mounted Air Conditioner

Furnace

Duo-Therm Direct Spark Ignition Furnace

Details on the furnace's ignition system and normal operation.

Furniture

Double Dinette

Adjustability and conversion of the double dinette to a bed.

Front Davo

Instructions for converting the front davo into bunk beds.

Side Facing Settee

Rear Dinette

Gun and Ammunition Cabinets

Engine Coolant

Jacking

Wheel Nut Torque Caution

Towing

Rear Suspension Failure

Emergency Operation

Driving instructions in case of total rear suspension air loss.

Emergency Exit

Fire Extinguisher

Appearance Care

Care and Cleaning of Interior

Guidelines for cleaning interior surfaces and materials.

Cleaning General Soilage or Water Spots from Fabric Type Trim with Foam Type Cleaner

Instructions for cleaning fabric trim with foam cleaner.

Spot Cleaning Fabric Type Trim Materials with Solvent Type Cleaner

Window Screen Removal

Window Screen Installation

Vacuum Cleaner

Kitchen Sink

Refrigerator

LP Gas Range/Oven

Exterior Appearance Care

Polishing and Waxing

Protection of Exterior Bright Metal Parts

Underbody Maintenance

GM Appearance Care and Maintenance Materials

Service and Maintenance

Maintenance Schedule

Schedule for vehicle maintenance tasks.

GMC Truck and Coach Division Supports NIASE Mechanic Certification

Information about NIASE certification for mechanics.

Accessibility

Exterior Compartments

Locations and securing of vehicle compartment doors.

Engine Compartment

Engine Accessibility

Hoisting Instructions

Engine

Engine Oil and Filter Recommendations

Recommendations for engine oil type and filter changes.

Lubrication Details

Steering System

Power Steering System

Checking power steering fluid level and recommendations.

Brake System

Brake Master Cylinder

Checking brake fluid level and potential causes of low fluid.

Checking Oil Level

Automatic Transmission Fluid Recommendations

Automatic Transmission

Information on automatic transmission fluid levels and checks.

Automatic Transmission Drain Intervals

Transmission Oil and Filter Replacement

Final Drive

Final Drive Lubricant

Checking and adding lubricant to the final drive.

Servicing Details

Engine Cooling System

Details on the engine cooling system, including coolant levels.

Cooling System Care

Procedures for checking and maintaining the cooling system.

Checking Coolant Level

Steps for checking the coolant level via the recovery tank.

Engine Fuel System

Fuel Requirements

Information on recommended gasoline grades and octane ratings.

Carburetor

Filter Replacement

Engine Air Cleaner

Chassis Electrical System

Spark Plugs

Headlights

Headlight Replacement

Chassis Fuses, Fusible Links, Circuit Breakers

Wheels and Tires

Vehicle Loading

Inflation Pressure

Inspection and Rotation

Alignment and Balance

Traction

Tire Replacement Considerations

Wheel Replacement Considerations

Warranty

Tightening Wheel Nuts

Wheel Bearings

Front Suspension

Ride Height

Rear Suspension

LP Gas System

Living Area Electrical System

Batteries

Onan Motor Generator Maintenance

Checking Oil Level

Procedure for checking the oil level in the motor generator.

Changing Oil

Cooling System

Air Cleaner

Standard Toilet

Draining Holding Tank

Draining Living Area Water System

Water Tank Filter

Sanitizing Living Area Water System

Vehicle Storage

Short Term Storage-Up to 60 Days and Above 32°F. (0°C.)

Procedures for short-term vehicle storage above freezing.

Winterization

Long Term Storage - 60 Days or More and Above 32°F. (0°C.)

Procedures for long-term storage above freezing.

Winter Storage-Below 32°F. (0° C.)

Procedures for winter storage below freezing.

Vehicle Trip Preparation

Spring and/or Summer Trip Preparation

Preparation checklist for spring and summer trips.

Fall and/or Winter Trip Preparation

General Data and Specifications

Vehicle Identification Number (VIN)

Vehicle Dimensions

Tire Information

Capacities

Engine*

Miscellaneous

Vehicle Fuses and Circuit Breakers (Con't)

Living Area 12-Volt System Fuses

Living Area 12-Volt System Fuses (Con't)

Onan Motor Generator (6000 Watt-50 Amp)

Light Bulb Specifications (Instrument Panel)

Light Bulb Specifications (Living Area)

Light Bulb Specifications (Exterior)

120-Volt System Current Rating

12-Volt Living Area Components Current Rating

Front End Alignment

Owner Assistance

Emergency Service

Maintenance Manual and Parts Book

U.S. Zone Territories

U.S. Zone Offices

General Motors Overseas Distribution Corp. Offices

GM of Canada Limited-Zone Offices

After-Hour Information Service

Important Facts You Should Know About Gasoline Mileage and How to Improve It

Gas Station Information

Related product manuals