GMC 1973 Revcon User manual

Contents
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1. Quadrasonic Tape Deck
2. Map Box
3. Pull-out Desk Tops
E. Windshield Thermal Blanket
F. Reading Lights
G. Headlamp Dimmer Button
H. Fuse Box
I. Passenger Seat Adjustment
Home Section
A. Stove
1. Top Burners
8. Lighting Instructions
b. Adjustment
c. Cleaning Instructions
2. Oven
8. Lighting Instructions
b. Adjustment
c. Cleaning Instructions
3. Stove-power Vent Switch
4. Stove Light
5. Slide Damper
6. Stove Filter
·B. Refrigerator
1. Leveling
2. Gas Operation
3. Electrical Operation
4. Defrosting
5. To Shut Down Refrigerator
6. Cleaning
8. Temperature Control
9. Brake Release
10. Temperature Warning Light
11. Fuel Gauge
12. Oil Pressure Warning .Light
13. Brake Warning Light
14. High Beam Light
15. Left and Right Turn Indicator
16. Speedometer
17. Odometer
18. Transmission Gear Selector Dial
19. Radio
20. Radio to Tape Deck Control Switch
21. Cigar-Cigarette Lighter
22. Cruise Control Switch
23. Vacuum Gauge
24. Oil Pressure
25. Oil Temperature
26. AMP Gauge
27. Tachometer
28. Water Temperature
29. Air Conditioning
B. Steering Column
1. Tilt Wheel Control Lever
2. Turn Signal Indicator Lever
3. Transmission Gear Selector Lever
4. Ignition Switch
5. Hazard Warning Flasher Button
C. Driver's Seat Adjustment
D. Dashboard
Operating Instructions
A. Your Vehicle's 'Keys
B. Anti-Theft Steering ,Column Lock
C. Starting the Engine
Procedure
Cold Engine
Warm Engine
Extremely Cold Weather
If Engine Fails to Start
D. Emergency Starting
E. Transmission
Rocking the Vehicle
Forced D9wnshift
F. Break-in Period
G. Power Steering
H. Braking System
Power Brakes
I. Engine Fuel
Driver's Compartment
A. Instrument Panel
1. Headlights and Instrument Panel
Light Switch
2. Courtesy Lights
3. Windshield Wiper Control
4. Windshield Washer Control
5. Generator Warning Light
6. Heater Fan Control
7. Defrost Control

C. Kitchen Sink Area
1. Double Sink &Spray
2. Hot Water Tank &Water Purifier
3. Water Heater Lighting Instructions
4. Soap Dish &Waste Disposal
5. Electrical Outlets
iD. Dinette and Bunk Combination
E. Double Bed-Cou~h
F. Upper Bunk.
·G. Vanity
.1. Single Bed
H. Furnace
1. Lighting Instructions
2. Burner Adjustment
I. TV Antenna
J. Light and Power'Switches
" 1. Overhead \Lights
2. Entry Light
3. Step Light
K. Bathroom
1. Toilet
,,2. Lavatory
3.' Shower-tub
L. ,Air Conditioning (Off-the-Road)
M. Auxiliary Power Plant
1. Gasoline Fuel
2. Oil.
3. Starting
'4. Stopping
5. Circuit Breakers
N. LP Gas Tank (Butane or Propane)
O. Fresh Water Filler and Gasoline Filler
P. City Water Hookup
Q. Instructions for Sanitizing Potable
Water System
R. Dump Outlet
S. Winterizing Procedure
T. Slide Out Bumper
DriveTrain and
Electrical Maintenance
A. Engine Air Cleaner
B. Air Conditioner
C. Brakes
D.Carburetor
E. Distributor and Spark Plugs
F. Engine Cooling System
G. Crankcase Ventilation Filter
H. Positive Crankcase Ventilation
(PCV) System
I. Cooling System Thermostat
J. EXh~u~t System
K. Power St,ering
L. Wheels and Tires
1. Changing Wheels
·M. Lights
N. Batteries
o. Electrical System
1. Shore Power
2. Auxiliary Power
P. Lubrication Service
Q. Windshield Washer and Wiper
R. Paint
S. Washing
T. Waxing and Polishing
U. Chrome Plated and
Stainless Steel Parts
v. Glass and Mirrors
W. Towing
Specifications
A. Capacities
B. Lubricant Recommendations
C. Recommendations for Filters
D. Engine (455 4bbl.)
E. Fuse Specifications:,.
Fuse $pecification:for DC Cabin Systems
Fuse Specifications
.for. DC Converter and
Charging Circuit
F. Lamp Specifications
1. Internal
2. External
Wiring Diagram
Electrical Schematic
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Operating Instructions
A. Your Vehicle's Keys
Your new REVCON MOTOR HOME comes
with three keys. The key with the GM trademark
operates the ignition switch. The key with the
square head and marked with a"B" locks and
unlocks the entry door. The engine
compartment, side compartment, spare tire,
gasoline filler, fresh water filler and rear
compartment are all operated by the gold key.
~. Anti-Theft Steering
Column Lock
The anti-theft ignition lock on the right side of
the steering column has five positions.
Starting nearest the driverthey are:
1. Accessory 2. Lock 3. Off 4. On and 5. Start
For theft protection, the system is designed to
prevent normal operation of the steering and
shift controls when the ignition switch is in the
"LOCK" position. The transmission selector
lever must be
in "PARK" before the key can be
turned to the "LOCK" position. The
"ACCESSORY" position permits operation of
electrical accessories when engine is not
running. It can be engaged only by pushing in on
the ignition key and turning the key toward you
(counterclockwise). The "OFF" position is
provided so that the ignition can be turned off
without locking the steering column or
transmission selector lever. The key can be
withdrawn only when switch is
in the "LOCK"
position.
NOTE: Set your parking brake firmly when
leaving the vehicle unattended. The Anti-Theft
Steering Column Lock is not meant to be a
substitute forthe parking brake.
When Leaving Your REVCON Unattended:
1. Set the parking brake.
2. Place transmission selector lever in "P"
park.
3. Turn key to "LOCK" position.
4. Remove key.
5. Close all windows firmly and lock the door.
6. Turn water pump switch off (see p. 00 under
Lavatory
in Home Section).
7. Turn master battery sW,itch to "OFF."
CAUTION: Always let go of
the steeri ng wheel
before turning the ignition key to "LOCK"
position. When parking on ahill with the wheels
turned into the curb, be sure the vehicle has
come to acomplete stop before turning key to
"LOCK." Turning the wheels left or right after
the vehicle is stopped,
"winds,up" the steering
system, which can result
in a "spring back" of
the steering wheel when the lock is released. As
afurther precaution, never reach through the
steering wheel to operate the controls, or for
any other reason.
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c. Starting the Engine
CAUTION: When starting the engine with the
car parked, always keep the foot brake applied.
NOTE: To prolong battery life, turn off radio,
lights, air conditioning and all other accessories
prior to starting the engine. Leave accessories
off until the engine is running smoothly.
PROCEDURE
Place transmission selector lever in "P" or "N."
(A safety switch prevents starting in any'drive
position.) If it ever becomes necessary to start
the engine when the vehicle
is moving, place the
selector lever in "N"-never in "P"-as this
could cause severe transmission damage.
COLD ENGINE
Fuily depress accelerator pedal and slowly
release. With foot off the accelerator pedal, turn
the key to the "START" position. Release the
ignition key when the engine starts. If the engine
starts but fails to run, repeat the above
procedure. When the engine
is running
smoothly, the idle speed may be reduced by
slightly depressing the accelerator pedal and
then slowly releasing.
WARM ENGINE
Depress the accelerator pedal about halfway
and hold while starting engine.
EXTREMELY COLD WEATHER (Below 0° F.)
If the vehicle has been standing idle for several
days
or the weather is extremely cold, fully
depress and release the accelerator pedal two
or three times before starting the engine. With
foot off the accelerator pedal, turn the key to the
"START" position and release when engine
starts.
IF E'NGINE FAILS TO START
After first using the appropriate procedure
above, fully depress and release the accelerator
pedal several times. Then remove foot from the
accelerator and turn the key to "START." If the
engine still does not start, fully depress the
accelerator pedal and hold it to the floor while
holding the key on "START." If the engine has
been flooded with gasoline it may start to run,
but without enough
power to keep running. In
that case, continue cranking with accelerator
fully depressed until the engine clears itself of
excess gasoline and runs smoothly.
D. Emergency Starting
The engine cannot be started by pushing the
vehicle. To start the engine when the batteries
are discharged, one of three methods may be
used.
1. If city power is within extension cord length,
you can simply plug shore line into
an
available 110 volt inlet and the batteries will
be charged automatically.
2. If no shore (outside) power is available, start
the Power Pak Generator and allow to run for
approximately one-half hour; the converter
will then provide sufficient current to start the
engine.
3. One of the batteries may be removed and
taken to agarage or gas station for charging.
When replaced, be sure to turn the "battery
switch" to the position of the freshly charged
battery.
4. If jumper cables are available, acar battery
(12 volt) may be jumped for the required
starting power.
CAUTION: When using this method, be
absolutely certain that the
"positive" terminal
of one battery connects to the "positive"
terminal of the other. Not all cars use
negative ground systems, but the larger
terminal will always be
"positive" and the
smaller "negative."

E. Transmission
The transmission in your REVCON MOTOR
HOME is
an Oldsmobile Turbo Hydra-Matic.
The selector lever is located on the right side
of
the steering column.
"Park" provides apositive transmission lock
when parking
or while starting the engine. Pull
the selector lever toward you to select
or release
this position. Never move the selector to
"Park"
unless the vehicle is completely stopped.
"Neutral" is the only other position in which the
engine may be started.
"Reverse" ("R") position is for backing the
vehicle. Come to acomplete stop before moving
the selector lever into reverse.
"Neutral" ("N") is the out-ot-gear position. It is
provided for starting astalled engine while the
vehicle is
in motion or running the engine while
standing with the brakes applied. Do not coast
in neutral
as it could cause serious transmission
damage.
"Drive Range" ("0") is the driving range for
normal acceleration and cruising speeds for
city and highway driving. This position permits
the transmission to operate through its complete
range of gear ratios and to select the
proper
ratio for all· road conditions.
"Super Range" ("5") position is used when
super performance is needed for increased
acceleration in traffic, hill climbing or
"engine
braking" downhill. The selector lever may be
moved from
"0" to "5" or from "5" to "0"
under most operating conditions. "5" should not
be used at speeds above 75 mph.
CAUTION: Be particularly careful when shifting
into lower gear ratios on slipperysurfaces with
the vehicle moving. The abrupt braking action
could cause the driving wheels to skid.
"Low" ("L") position is available for heavy
pulling through mud
or sand and for braking
when descending steep hills. The selector lever
may be moved to
"L" at or below approximately
40 mph. The transmission will not upshift from
low range
as long as the selector is in "L"
position.
NOTE: Before descending asteep or long
grade, reduce speed and shift into
"L" using the
brakes sparingly to prevent them from
overheating.
ROCKING THE VEHICLE
If it becomes necessary to rock free f.rom sand,
mud
or snow, move the selector leverfrom "0"
to "R" in arepeat pattern while simultaneously
applying moderate'pressure to the accelerator.
Do not race the engine. Avoid spinning the
wheels when trying to free your vehicle.
NOTE: When driving in the mountains, never
let
your engine labor. Shift to alower range
before the engine begins to labor
or overheat.
(Try to anticipate- any potential overheating
conditions and
do not use the air conditioning.
Using the air conditioning on hot days while
climbing asteep grade will increase the
possibility of overheating the engine
or trans-
mission.) If you ever
do overheat, pull offto the
side of the road and determine and correct the
cause.
FORCED DOWNSHIFT
When quick power or acceleration is desired for
passing
or to climb steep grades at speeds
between 35 and 65 mph the transmission can be
downshifted by depressing the accelerator
pedal to the floor.
F. Break-in Period
Driving speeds for your REVCON should be
limited to amaximum of 50
mHes per hour for
the first 100 miles and 65 miles per hourfor the (-
next 400 miles, with no heavythrottle
accelerations.
During the break-in period be sure to vary your
speeds frequently. Do not drive at asteady50
mph, but rather drive for five minutes at 50 mph,
five minutes at 55 mph, five minutes at 60 mph,
then back to 50 mph and repeat these speed
changes. The mild acceleration and
deceleration helps the moving parts to seat
properly, and ensures the longest life for your
vehicle's drive train. Your REVCON should be.
driven at least 1,000 miles before attempting to
pull atrailer.
G. Power Steering
Your REVCON uses aSaginaw Gear power
steering system, which provides exceptional
ease
in handling and parking. The power assist
is provided by ahydraulic pump driven by the
engine. When the engine is not running,
or if the
power steering pump driving belt breaks, the
vehicle can still be steered, although much
\greater steering effort will be required.
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H. Braking System
The service braking system is designed to
operate effectively under all load conditions and
at all speeds. The system
is so built that in the
event of ahydraulic fluid leak
in one half of the
system, the other half still provides braking
action.
Brake adjustment is automatic on your new
REVCON. The self-adjusting rear brakes
eliminate any periodic brake adjustments, and
the disc brakes on the front wheels require no
adjustment.
The rear drum-type brakes are automatically
adjusted every time the brakes are applied while
the vehicle is moving in reverse. It is possible,
however, for excessive brake pedal travel to
develop if the required reverse motion and
brake application does not occur over along
period of time. If excessive brake pedal travel
does develop, the vehicle should be driven
backward and the brakes applied firmly. This
procedure, repeated several times, should
restore normal brake travel. If not, immediate
inspection should be made by yourAuthorized
Dealer.
CAUTION: "Riding the Brake," resting your
foot
on the brake pedal when not intending to
brake, can cause excessive lining wear and
damage to the brake system.
POWER BRAKES
Your REVCON is equipped with Oldsmobile
vacuum power brakes to reduce braking effort.
If the engine should stall, the vehicle can still be
stopped, but greater force must be applied to
the brake pedal.
CAUTION: Driving through deep water may
affect brake performance. Alight application of
"the brakes will indicate if they have been
affected. To drythem quickly, lightly applythe
brakes with your left foot while maintaining a
constant pressure
on the accelerator with your
right foot. This is the only instance when
"riding
the brakes" is permissible. Maintain acautious
speed and be certain that the road is clear, both
in front of and behind your vehicle, when making
this m,aneuver.
I. Engine Fuel
The fuel filler tUb~ is located within the lock
compartment on the right side of the vehicle,
next to the fresh water filler. The area within the
fuel filler compartment is red.
CAUTIO'N: Gasoline is flammable and
explosive under certain conditions. ALWAYS
STOP THE ENGINE AND DO NOT SMOKE
OR
ALLOW OPEN FLAMES OR SPARKS NEAR
THE VEHICLE WHEN REFUELING. If gasoline
fumes are noticed while driving, the cause
should be determined and corrected without
delay.
Your REVCON is designed to operate
on
regular gasolines. However, any gasoline with
91 Research Octane number or higher will
satisfy your engine's octane requirements. Use
of unleaded
or low-lead gasoline will keep your
engine running efficiently and play
an important
part
in reducing exhaust emissions of hydro-
carbons and particulates. If unleaded
or
low-lead gasolines are not available, you may
use aleaded regular-grade gasoline. Since the
anti-knock quality of all gasolines is not the
same and factors such
as altitude, terrain and
air temperature affect operating efficiency,
knocking may result even though you are using
the recommended fuel. If persistent knocking is
encountered, consult your Authorized Dealer.
Continuous or excessive knocking may result
in
engine damage, and constitutes amisuse of the
engine for which REVCON cannot be responsible
underthe terms of the New Vehicle Warranty.
NOTE:
Premium fuel is required in all 240 models.
In certain foreign countries, there is apossibility
that even the best fuels are so low in anti-knock
additives that excessive knocking and serious
engine damage may result from their use.
Consult
an Authorized Dealer if you plan to
travel outside the continental United States.