GMC Royale User manual

FOREWOR D
Welcome to Jimmy's ever-growing family of happy recreational vehicle owners, who have bee n
enjoying their units for years
. Hours of relaxation, adventure and enjoyment are possible for yo u
in your new Jimmy unit .
This Owner's Manual has been prepared to ensure that you and your family enjoy your new Jimm
y
RV to its fullest, by providing basic instructions for the operation and maintenance of its appli-
ances, accessories and RV systems
. It is supplemented by the Chassis and Body Operating Manua l
and the appliance and accessory instruction booklets provided by various manufacturers
. Rea d
all of the publications carefully and follow the instructions
.
Operating and maintenance instructions pertaining to appliances in this Owner's Manual wer e
obtained from and are used with the permission of the various manufacturers . We reserve th
e
right to present edited portions of their material .
Return to your GMC Motor Home Dealer for Guardian Maintenance Service and any other assist-
ance
. He is interested in your complete satisfaction and is best qualified to maintain and repai r
your unit's chassis and body components .
GMC Truck and Coach maintains a number of Zone Offices/throughout the country . Should yo u
have a problem that cannot be h9ndled through normal channels, follow the procedure outline d
in the Chassis and Body Operating Manual
.
Jimmy Motor Homes works year 'round to improve its products . Accordingly, all specifications ,
equipment, and prices set forth jn Jimmy literature are subject to change without notice o r
obligation .
Jimmy offers a choice of models, floorplans and standard and optional equipment ; therefore ,
certain descriptions in this manual may not apply to your unit . Ask your GMC dealer, or see th e
current brochure, for information concerning available standard or optional equipment .

TABLE OF CONTENT
S
FOREWORD 
INSIDE COVE R
FLOOR PLANS 
FRONT INSER T
INTRODUCTION 
2
GENERAL 
2
LICENSES 
2
INSURANCE 
2
TRAVEL PREPARATIONS 
2- 3
GENERAL 
2
CLOTHING 
2
CAMP HYGIENE 
2
PERSONAL HYGIENE
 2
SAFETY 
2
FOOD AND WATER
 2
MEAL PREPARATION
 2
TOOL CHEST 
3
ADDITIONAL TOOLS
 3
EQUIPMENT  3
SLEEPING GEAR  3
ENTERTAINMENT  3
IMPORTANT DOCUMENTS  3
TOURIST INFORMATION  3
GOLDEN AGE PASSPORT 
3
GOLDEN EAGLE PASSPORT 
3
HOME SECURITY 
3
PRE-TRAVEL CHECK  3- 4
GENERAL  3-
4
LIGHTS 
3
REARVIEW MIRRORS
 3
WINDSHIELD
 3
POWER CORD 
3
WATER FILL 
3
SEWAGE TERMINATION VALVES
 3
WINDOWS AND VENTS 
3
TV ANTENNA  3
LP GAS  4
EXTERIOR ACCESS DOORS  4
INTERIOR DOORS AND DRAWERS  4
REFRIGERATOR DOOR  4
AUTOMOTIVE SYSTEM  4
TIRES 
4
WHEEL LUGS 
4
LOADING 
4- 5
GENERAL 
4
WEIGHT DETERMINATIONS 
4
FEDERAL STICKER  4
DEFINITIONS 
4- 5
GAWR  4
GVWR  4
GVW AND GAW  4- 5
WEIGHING

5
DRIVING

5- 7
GENERAL 
5
PULLING INTO TRAFFIC  5
TURNING

5
PASSING

5
DOWNSHIFTING  5
BRAKING 
5-
6
GRADES  6
PARKING ON A GRADE  6
FREEING A STUCK VEHICLE  6
TOWING  6
TILT STEERING WHEEL  6
CRUISE CONTROL 
6- 7
TIRE CHANGE 
7
CAMPING

7
CAMPSITE SELECTION  7
COURTESY  7
LIVING AREA  7-1 0
SETUP  7  8
TABLES 
8-
9
WALL MOUNT TYPE  8
PEDESTAL TYPE  8
EXTENSION TYPE  8
THREE-WAY DINETTE SEAT  9
BEDS  9-1 0
THREE-WAY DINETTE SEAT/BED  9
LOUNGE BEDS  9
SWING-UP BUNK  9
U-SHAPE BED  9
PULL-DOWN BED  1 0
DIVIDER DRAPES  1 0
CARE OF CUSHION FABRICS  1 0
CARE OF DRAPES, CURTAINS  1 0
CARE OF SHADES 
1 0
CARE OF CARPET 
1 0
CARE OF WOODWORK
 1 0
BASIC SYSTEMS  1 0
GENERAL  1 0
ELECTRICAL SYSTEM  10-1 3
GENERAL 
10-1 1
120-VOLT SYSTEM 
11
GROUND FAULT INTERRUPTER 
11
SHORELINE CONNECTION  1 1
12-VOLT SYSTEM  11-12
BATTERY  1 2
CONVERTER 
1
2
GENERATOR  12-1 3
FRESH WATER SYSTEM  13-1 4
GENERAL  1 3
WATER TANK  1 3
WATER PUMP  1 3
SANITIZING WATER TANK  1 3
CITY WATER  1 3
WATER PURIFIER  1 3
CARE OF SINKS, LAVATORY & TUB/SHOWER  13-1 4
LEAKS  1 4
DRAINAGE/SEWER SYSTEM

14-1 5
GENERAL  1 4
DRAIN CARE  1 4
TOILET  1 4
CARE OF TOILET  1 4
HOLDING TANKS  14-1 5
EMPTYING HOLDING TANKS  14-1 5
LP GAS SYSTEM  15-1 6
GENERAL  1 5
CLIMATE DIFFERENCES  1 5
FILLING THE LP GAS TANK  15-1 6
LP GAS LINE CHECK  1 6
REGULATOR PRESSURE  1 6
LP GAS TANK CARE  1 6
APPLIANCES AND ACCESSORIES  16-2 1
RANGE, RANGE HOOD, OVEN  16-1 7
GENERAL  1 6
LIGHTING THE RANGE  1 6
LIGHTING THE OVEN  1 6
BROILER  1 7
RANGE HOOD  1 7
CARE OF RANGE AND OVEN  1 7
CARE OF RANGE HOOD  1 7
MICROWAVE OVEN  1 7
CARE OF MICROWAVE OVEN  1 7
WATER HEATER  17-1 8
GENERAL  17-1 8
BURNER ADJUSTMENT  1 8
DRAINING  1 8
REFRIGERATOR  18-1 9
GENERAL 
1
8
LP GAS OPERATION  1 8
ELECTRIC OPERATION  1 8
CARE OF REFRIGERATOR

18-1
9
FURNACE  1 9
FURNACE IGNITION  1 9
CARE OF FURNACE

1 9
VACUUM SWEEPER  1 9
FOOD CENTER BLENDER
 1 9
ROOF AIR CONDITIONER  2 0
GENERAL 
2 0
CONTROLS 
2
0
CARE OF AIR CONDITIONER
 20
AM/FM/MPX STEREO RADIO & 8-TRAC K
TAPE PLAYER  2 0
TV ANTENNA  2 0
DIGITAL CLOCK 
2 0
MAINTENANCE  2 1
GENERAL  2 1
EXTERIOR  2 1
UNDERBODY  2 1
AUTOMOTIVE SYSTEM  2 1
STORAGE  21-2 2
GENERAL  2 1
LP GAS SYSTEM
 2 1
WATER TANK 
2 1
WATER PUMP

2 1
FURNACE  2 1
ELECTRICAL SYSTEM  2 2
EXTERIOR  2 2
INTERIOR  2 2
WINTERIZATION  2 2
GENERAL  2 2
FRESH WATER SYSTEM  2 2
AQUA MAGIC TOILET  2 2
FIRE SAFETY  2 2
EMERGENCY EXITS  2 2
EGRESS WINDOW  2 2
SLIDING WINDOW  2 2
VISITING CANADA OR MEXICO  22-2 3
GENERAL  22-2 3
VEHICLES  2 3
CB RADIO 
2 3
HUNTING AND FISHING 
2
3
DOGS AND CATS  23
EMERGENCY CONTACTS  2 4
SPECIFICATIONS  2 5
MAINTENANCE RECORD  2 6
TRAVEL RECORD  27-2 8
APPLIANCE IDENTIFICATION FORM  2 9
EXTERIOR COMPONENTS  30-31
1

INTRODUCTIO N
GENERA L
Your selection of a Jimmy motor home indicate s
that you are a discriminating consumer who appre-
ciates quality and performance, combined wit h
styling ; a person who normally does not indulge i n
impulse buying. However, now that you've purchase d
your new Jimmy, it's our experience that you ma y
become impulsive about starting on your first trip .
We urge that you do not make a hasty departure .
It is true that your Jimmy motor home is ready .
The body and chassis were designed and constructe d
by GMC; the interior was designed by Jimmy Moto r
Homes and upfitted with the finest materials an d
components, and the systems have been thoroughl y
checked by Jimmy and again by your GMC deale r
prior to delivery to you . But for complete enjoymen t
and trouble-free traveling, it is important that yo u
get to know your motor home, its appliances an d
accessories, how they work and how to take car e
of them . Make careful plans about what to tak
e
and how much . Later, when you are familiar wit
h
your motor home and your own travel needs an
d
preferences, those "spur of the moment" trip s
can be fun .
To help you get started, we have included mor e
than operating and maintenance instructions i
n
this manual ; you'll also find tips and suggestion
s
especially aimed at first-time RV'ers . There also ar
e
dozens of illustrations for easy identification of th e
various components .
NOTE : illustrations identified by a Figur
e
Number will be found in the convenient foldou
t
at the back of the manual .
Our first suggestion is that after you've rea
d
this manual, the Chassis and Body Operating Manual ,
and the appliance and accessory instruction booklets ,
store them in your motor home for handy reference .
An overnight or weekend "shakedown" trip ca n
help RV'ing novices become familiar with thei r
unit and its systems and appliances
. The experienc e
gained and the hints other RV'ers are usually eage
r
to share will help make future trips more enjoyable
.
Although you selected certain standard and/o
r
optional equipment, you may wish to add othe
r
accessories later
. Experience is invaluable in deter
-
mining which, if any, additional items to choose
.
Remember, your GMC motor home dealer will assis
t
you in every way possible
.
LICENSE
S
The vehicle licensing laws vary from state-to-state
.
Check with your license bureau or nearest branc
h
office for the requirements in your state
. Be sur e
to renew your driver's license if it has or will expir
e
during your trip .
INSURANC E
Personal liability, property damage, collisio
n
and theft of contents may be features of your auto
-
mobile policy which apply to your Jimmy unit
.
Contact your insurance agent about details of you
r
coverage
. Always carry your policy card
.
TRAVEL PREPARATION
S
GENERA L
Determine the various items of equipment
,
clothing, food and other supplies required for th
e
length and destination of your journey
. In a sub-
sequent section, the importance of proper loadin
g
is explained, but at this stage you're more concerne
d
with a quick getaway
. One way to reduce loadin g
time is to purchase dinnerware and silverware, pots
,
pans, towels and bedding, which can remain in you
r
unit at all times
. After a trip, clean and launde r
the articles and replace them in your motor home
,
ready for your next trip . The following is a guid
e
to help in your travel preparation
.
CLOTHIN
G
Compile a clothing list for each person
. Conside r
the season and areas through which you intend t
o
travel
. Basic articles: Underwear, socks, footwear
,
shirts, blouses, trousers, slacks, dresses, shorts
,
sweaters, jackets or coats, rainwear and swim suits
.
CAMP HYGIEN E
Dishsoap, dishcloths and dishtowels, garbage an
d
trash bags, mop, broom and dustpan .
PERSONAL HYGIEN E
Toilet paper, soap, washcloths, towels, tooth
-
paste, toothbrush, deodorant, and shaving
kit .
SAFET Y
Flares and reflectors ; flashlight
; first aid kit
;
tow rope and/or chain .
FOOD AND
WATE R
Don't try to take a food supply for an extende
d
trip
. Take enough for two or three days and replenis
h
supplies along the
way . Take a basic supply o
f
seasonings
: Sugar, salt, pepper and spices . Pla n
meals so that fresh or refrigerated items are use d
before they spoil
. Fill your fresh water tank befor e
leaving (when traveling in winter, it is recommende
d
that the water tank not be filled until the interio
r
of your unit is thoroughly warmed or until
yo u
reach your destination) .
MEAL PREPARATIO
N
Bottle cap and can opener
; matches, lighter o r
igniter device
; pots, pans, plates, glasses, and cup s
(paper or plastic are lighter and less likely to brea k
while the vehicle is in motion)
; silverware and carvin g
knife .
2

TOOL CHES T
Include an assortment of wrenches and screw -
drivers, pliers, hammer, shovel, tire pressure gauge ,
small level, electrical and masking tape (for changin g
rear tires, you'll need a Phillips screwdriver and a
9/16" wrench to remove the fender skirt) .
ADDITIONAL TOOL S
You also may want to take a hatchet, saw, an d
12-volt portable tire pump .
EQUIPMEN T
Fresh water hose (garden) and bucket ; "Y "
type water hose fitting ; 20-foot, 3-prong powe
r
cord ; 3-prong adapter with grounding wire ; fuses ;
wheel chocks, leveling ramp or blocks .
SLEEPING GEA R
Sleeping bags are ideal for cold climates, bu t
sheets and blankets are better suited for war m
weather . Take along an extra blanket or two fo r
sudden drops in temperatures, such as can be ex-
pected in mountain areas even during summer .
Be sure to take pillows, pajamas and mattress pads ,
if normally used .
ENTERTAINMEN T
Take along games, toys, books, magazines, o r
other items of entertainment to occupy passenger s
while traveling or in case you encounter inclemen t
weather .
IMPORTANT
DOCUMENT S
Carry your vehicle registration and insuranc e
policy card(s) . If you are borrowing a vehicle, yo u
should have a notarized letter of authorization fro m
the owner with you .
TOURIST INFORMATIO N
Current road maps and tourist informatio
n
for states through which you intend to travel ar e
available through state tourist agencies . You als o
may want to purchase a tourist guide book
.
If you will be visiting federally-operated nationa l
parks, monuments and recreation facilities, you ma y
wish to look
into the Golden Age Passport and th e
Golden Eagle Passport . They can help families cu t
spending at those areas where fees are involved .
GOLDEN AGE PASSPORT — The Golde n
Age Passport is free for persons 62 and over an d
covers all admission fees and a 50 percent discoun t
on use fees (except fees charged by private conces-
sionaires) and is good for lifetime . It may be obtaine d
only at park service offices and at parks wher e
entrance fees are charged . It cannot be obtaine d
by mail or at post offices . To obtain the Golden Ag e
Passport you will need proof of age, such as a driver' s
license, or be prepared to sign an affidavit swearin g
that you are 62 or over . Note
: Medicare cards are
not accepted since in some cases they are issue d
to younger persons .
GOLDEN EAGLE PASSPORT — The Golde n
Eagle Passport costs $10 and is designed for person s
who plan to visit several parks or federally-operate d
facilities in a single year. It covers all admissio
n
charges but does not cover use fees and is good onl y
during the calendar year in which it is issued .
I
t
may be purchased in person or by mail at the Na-
tional Park Service headquarters, Department of th
e
Interior, Washington, D .C . 20240 ; at regional office
s
and at facilities where entrance fees are charged
.
Both the Golden Age and Golden Eagle Passport s
cover admission fees for the permit holder and an y
persons accompanying him or her in a private vehicle .
Where entry is not by vehicle, the passport cover s
the permit holder and members of his or he r
immediate family .
HOME SECURIT
Y
Make arrangements for someone to check you r
house periodically . Stop mail and newspaper delivery .
If you intend to be away for more than 2 weeks ,
request police surveillance . Carry an extra set o f
vehicle and house keys on a separate key ring .
PRE-TRAVEL CHEC K
GENERA L
Whether departing from your home, rest area ,
or campsite, you should perform these pre-trave l
checks
:
LIGHTS should be tested, including brake lights ,
warning flashers, clearance lights, taillights, tur n
signals and headlights . Clean all lens covers .
REARVIEW MIRRORS should be adjusted s o
the driver can see both sides of the unit .
WINDSHIELD should be clean, wiper blade s
inspected, and windshield washer reservoir filled .
POWER CORD (120-Volt Shoreline) must b e
unplugged from the external source, pushed int o
its compartment and the cord hatch secured .
WATER FILL hoses must be disconnected an d
the caps secured .
SEWAGE TERMINATION VALVES must b e
closed and locked . The sewer hose must be remove d
from the termination valve outlet and stored . Th e
termination cap(s) must be securely fastened t
o
the termination outlet(s) .
WINDOWS AND VENTS should be closed an d
secured (the two rear windows should remain close d
while driving to avoid drawing exhaust fumes int o
the vehicle) .
TV ANTENNA must be cranked down to it s
travel position .
3

LP GAS tank and gas line connections shoul
d
be checked .
NOTE : Some states prohibit vehicles equippe
d
with LP gas tanks from using tunnels
. A fe w
other states prohibit traveling with the Servic
e
valve open and the pilots lit
. Check the regula-
tions of the states through which you inten
d
to travel .
EXTERIOR ACCESS DOORS for storage an d
equipment should be closed and locked .
INTERIOR DOORS AND DRAWERS shoul
d
be locked and secured . Loose items should be lashe d
down or stored away .
REFRIGERATOR DOOR should be secure d
with the travel latch .
AUTOMOTIVE SYSTEM should have the pre -
travel check outlined in the Chassis and Body Oper-
ating Manual .
TIRES should be inspected before each trip .
Replace a tire when it is worn to 1/16" depth in tw o
or more adjacent grooves, or to the level of trea d
indicators molded into the bottom of the trea d
grooves, when the indicators appear in two or mor e
adjacent grooves at three locations around the tire
.
Check tire for uneven wear, road damage, foreig
n
objects, or excessive peeling or bulging
.
When purchasing a new tire, be certain it is th e
same size and has the same ply rating and loa d
range as the old tire . DO NOT mix radial ply wit h
bias or bias-belted tires
.
Each morning inspect tire condition and pressur
e
on your unit . Heat generated by surface frictio
n
will increase the tire's air pressure approximatel y
6 to 9 psi ; therefore, do not bleed air out of a ho
t
tire . Inflate tire to recommended pressure a s
indicated on tire or in tire manufacturer's instructio n
booklet
.
NOTE
: Proper tire inflation is extremel y
important .
WHEEL LUGS must be tightened to the specifi-
cations in the Chassis and Body Operating Manual .
LOADIN G
GENERA L
A properly-loaded vehicle will perform better
and handle more safely . Distribute your cargo evenl y
from side-to-side and front-to-back . Store heavie r
items on or close to the floor and as centrally a s
possible . Lighter items may be stored in cabinets ,
closets and drawers . Luggage or similar cargo trans -
ported inside your motor home should be secure d
to prevent them from causing damage in case of
a
sudden stop or accident . Remember to leave spac e
and weight allowance for souvenirs or other item s
you may purchase during your travels .
WEIGHT DETERMINATION S
It is extremely important that you weigh you r
vehicle prior to leaving on a trip to determin e
whether your cargo is within the allowable limit s
for the various suspension components . Chec k
the Federal Sticker, the Chassis and Body Operatin g
Manual, or the Vehicle Identification Number (VIN )
Plate for the maximum weight ratings of each axl
e
and the proper tire inflation for the intended load
.
FEDERAL STICKE R
Found on the panel at left of driver area, th e
Federal Sticker lists the Jimmy Serial Number, th e
front and rear Gross Axle Weight Rating (GAWR )
and the Gross Vehicle Weight Rating (GVWR) .
The VIN Plate is under the hood of the curb-sid e
firewall
. It also lists the GAWR, GVWR and th
e
Chassis Serial Number .
DEFINITION S
GAWR — The allowable weight, including carg o
and passengers, which can safely be supported b y
the axles .
GVWR — The maximum permissible weigh
t
of your vehicle, including cargo, all options an d
passengers .
GVW AND GAW — Are found by weighing th e
vehicle fully-loaded
. GVW is the actual weight of th e
motor home and all standard and optional equip-
ment, cargo and passengers . GAW is the portion o f
the fully-loaded vehicle which is transferred t o
the axle(s) .
You can weigh your vehicle at a grain elevator ,
sand and gravel dealer or government weighin
g
4

station (they are listed in the yellow pages of you r
telephone directory) . The small fee involved ma y
save you considerable trouble and expense later .
Be certain to weigh the motor home with all pas-
sengers, cargo, LP gas and water aboard .
WEIGHIN G
STEP 1 — Drive only the front axle of the moto r
home onto the scale . Compare the weight to th e
front GAWR listed on the Federal Sticker .
STEP 2 — Pull forward so that the front an d
rear axles are on the scale . Compare the weight t o
the GVWR listed on the Federal Sticker .
STEP 3 — Pull forward so that only the rea
r
axles are on the scale
. Compare the weight to th e
rear GAWR listed on the Federal Sticker
.
NOTE
: If any of the weight ratings are ex-
ceeded, shift or remove a portion of the carg
o
and re-weigh the vehicle .
The independent suspension on your motor hom
e
could be adversely affected by an unbalanced loa
d
on either side of the vehicle . The allowable fron
t
lateral weight variation is 250 pounds
. The allowabl e
rear lateral weight variation is 600 pounds
. Lateral
weight variations in excess of those figures ma
y
result in abnormal vehicle handling .
DRIVIN G
GENERA L
Power steering and power brakes help mak
e
driving your Jimmy motor home as effortless a
s
possible
. But you must remember that the moto
r
home is longer, higher and wider than a famil y
automobile
. Be especially watchful for low bridges
,
overpasses, awnings or similar obstructions, whic
h
might damage your roof or accessories mounte
d
on the roof
. Watch for overhanging tree branche s
which also can do considerable damage to the wind
-
shield or roof of your motor home (refer to th
e
brochure for clearance measurements) . Before leavin
g
on a trip, you may want to practice turning, braking
,
backing and accelerating .
PULLING
INTO TRAFFI C
Check for oncoming traffic in all directions
.
Signal before entering the traffic flow
. Accelerat
e
slowly and smoothly and remember to compensat e
for less acceleration than that of a vehicle with
a
higher power-to-weight ratio
.
TURNIN
G
Because of the length of your Jimmy moto
r
home, always pull farther ahead before turnin
g
either left or right to allow sufficient clearanc
e
for the rear of your vehicle
.
PASSIN G
Avoid sudden maneuvers when passing anothe
r
vehicle
. Remember that additional time and distanc
e
are required to pass safely . Wait until the road i
s
clear of oncoming traffic for at least 1/2 mile
. Chec k
the rearview mirrors and signal lane change befor
e
passing
. When you are safely ahead of the othe
r
vehicle, signal lane change and return to your origi-
nal lane .
DOWNSHIFTIN
G
When additional acceleration is desired to pas
s
moving vehicles or to climb steep grades betwee
n
35 and 65 mph, the transmission can be downshifte
d
by depressing the accelerator pedal completely t
o
the floor
. You also can downshift in Drive (D
)
range at speeds under 35 mph by depressing th
e
accelerator pedal part way down .
BRAKIN G
Allow a safe distance in which to stop you
r
motor home
. Never follow another vehicle close
r
than one vehicle length for each 10 mph
. Pum p
the brake pedal lightly to stop on wet or icy roads
.
If you start to slide, turn the steering wheel in th e
direction of the slide
. DO NOT tromp the brak e
pedal — a panic stop will increase the slide
. DO
5

NOT rest your foot on the brake pedal when yo
u
are not intending to stop
. "Riding" the brakes wil
l
waste gasoline and can cause excessive brake tem-
peratures, lining wear and possible brake failure
.
GRADE S
Before descending steep or long grades, reduc
e
speed and shift into a lower gear
. The selector leve r
may be moved to Low (L) at any speed, but th
e
transmission will only shift automatically into Lo
w
range when the vehicle speed is under 40 mph
. Th e
transmission will not upshift from Low range as lon
g
as the selector lever is in the (L) position
. Super rang e
(S) can be used when increased acceleration is neede
d
in traffic,
hill
climbing or "engine braking" o n
down-hill grades
. The selector lever may be move
d
from (D) to (S) and vice versa under most operatin
g
conditions
. Super range should not be used at speed
s
above 75 mph .
Reducing speed and shifting to a lower gea
r
before climbing or descending steep grades ca
n
prevent engine overheating
. If your vehicle's engin e
should overheat, pull well off the road, shift t
o
Neutral (N), and run the engine with your foo
t
resting lightly on the accelerator pedal
. If the engin e
does not cool within 5 minutes, turn it off and locat
e
the problem before continuing on your trip
.
PARKING ON A GRAD E
Always apply the foot brakes then set the parkin
g
brake, when parking on a grade, before moving th
e
shift lever to Park (P)
. When preparing to move th e
vehicle, move shift lever out of Park (P) befor e
releasing parking brake
. If this sequence is no t
followed, you may not be able to move the shif
t
lever out of Park (P) . If this torque lock does occur
,
you may have to have another vehicle push your
s
a short distance until you can move the shift lever
.
FREEING A STUCK VEHICL
E
To pull your vehicle out of snow, sand or mud ,
apply slight pressure to the accelerator pedal an d
move the gear selector lever rhythmically betwee n
Low (L) and Reverse (R) . If possible, keep the fron t
wheels pointed straight ahead . Avoid sharp turns .
Once the vehicle starts to move, do not stop unti l
it is on firm ground
.
CAUTION : DO NOT race the engine or spi n
the wheels ; prolonged efforts to free a stuc k
vehicle may result in overheating and trans -
mission and axle failure .
TOWIN G
Towing a trailer will affect handling, durabilit y
and economy . Maximum safety and satisfactio
n
depends upon proper use of correct equipmen t
and avoiding overloads and other abusive operation .
For more information on towing, see the Chassi s
and Body Operating Manual — Trailer Hauling .
TILT STEERING WHEE L
The tilt steering wheel can be moved above th e
normal position to allow additional room for en -
trance and exit, as well as selected driving position s
above and below normal height. Operate the til t
mechanism by lifting the small control lever, on th e
left side of the steering column just below the direc-
tional signal lever, then moving the steering whee
l
to the selected position and releasing the lever .
CRUISE CONTRO
L
The Cruise Control, located in the end of th
e
turn signal lever, is designed to allow the vehicl e
to hold a selected speed at 30 mph or higher . T o
activate, accelerate to the desired speed and pus h
in the engagement button momentarily ; take you r
foot off the accelerator and the speed will b e
maintained
. To reset at higher speed, accelerat e
to the desired speed, push in the engagement butto n
6

fully
and release slowly . To reset at slower speed ,
depress the engagement button fully and hold
. Allo w
vehicle to decelerate until desired speed is reached
,
then release engagement button slowly
. You ca n
increase your speed, such as for passing, by depressin g
the accelerator pedal
. When you let up on the acceler-
ator, the vehicle will return to the pre-set speed .
Lightly apply the brake pedal to disengage th e
system .
CAUTION : Do not use the Cruise Contro l
when conditions are not suitable for maintainin g
a constant speed, such as in heavy or varyin g
traffic or in strong winds or on slippery roads .
TIRE CHANG E
Change a tire on as level and firm a surface a s
possible . If you are on the road side, activate th e
vehicle's hazard warning flashers . Apply parkin g
brake and move transmission selector to Park (P) .
Set up flares and/or warning lights and block bot h
front and rear of the wheel diagonally opposite th e
jack position . Loosen, but do not remove, the lu g
nuts .
Remove jack from its storage area (either unde r
the rear facing dinette seat or davo seat, locate d
behind the front passenger seat) .
To change a front tire, place hydraulic jack o n
a wood block near the front bumper bracket . Plac e
hook at flange front crossmember . Pass chain unde r
bumper (place a pad over bumper to prevent marrin
g
it) and adjust chain length to snug fit on fork at to
p
of jack . For a rear tire, remove fender skirt using
a
Phillips screwdriver and a 9/16" wrench or socket
.
Place jack on wood block close to the rear suspensio n
bracket
. The hook is placed in the drainage slo t
under the bracket . Adjust chain length so link wil l
fit in fork at top of jack .
To raise jack, close valve at base, insert jac k
handle and pump with slow, smooth motion . Rais e
vehicle until tire just clears surface . Remove lu g
nuts, slide tire off and replace with spare . Slightl y
tighten lug nuts . To lower jack, open valve at th e
base of the jack, then fully tighten the lug nuts .
Have lug nut torque checked at earliest opportunity .
Proper lug nut torque is 250 foot-pounds .
CAUTION : Use the jack only for changin g
tires . Never get beneath the vehicle when usin g
the jack ; never start or run the engine whil e
vehicle is on the jack . A/ways securely sto w
the spare tire on the spare tire carrier and retur n
all jacking equipment to its proper storage area .
CAMPIN G
CAMPSITE SELECTIO N
Because of the rapidly growing number of recrea-
tional vehicles, some campgrounds do not accep t
reservations, but make one whenever you can . I
f
possible, arrive early so you may inspect and choos e
a site during daylight hours . Try to avoid sites nea r
a swamp, stream or other bodies of water whic h
may harbor mosquitoes or other insects . Avoi d
parking under dead trees or loose limbs which migh t
fall and cause injury or damage . Stay away fro m
areas which show signs of flash flooding. DO NO
T
park on private property without first obtainin g
permission .
In winter, park behind a grove of trees, bushe
s
or similar type of windbreak . Close the gap betwee n
the ground and the bottom of your vehicle's outsid
e
walls with plastic, canvas or similar material . Thi s
will cut down cold drafts which can affect interio r
temperatures .
COURTES Y
Common courtesy will help make your sta y
more pleasant . Campsites are often close togethe
r
and RV walls are not as thick as those in your home ,
so loud noises may disturb your neighbors . Follo w
the posted rules of the campsite . Open fires may no t
be permitted . If you can build a campfire, clea r
the area of flammable materials ; never leave a camp -
fire untended and always make certain the ember s
are completely extinguished
.
LIVING ARE A
SETU P
You'll want your motor home to be level fo r
your own comfort (you don't want items sliding of f
counters and tables or out of cabinets) . But mor e
important, the unit must be level in order for you r
refrigerator and drainage system, both of whic h
function by gravity, to operate properly . Place a
level on the bottom of the refrigerator freeze r
compartment or in a normally level location insid
e
the vehicle to determine proper levelness
. Bubbl e
levels are furnished with some refrigerators and ar
e
available from your GMC dealer .
The Electro-Level system can level your vehicl e
from side-to-side and front-to-back by raising o r
lowering either side of the rear of the vehicle approxi -
7

mately 4 inches from normal ride height . The Electro -
Level control panel is located to the left of th e
driver below the window .
The two RAISE-LOWER switches may be use d
as necessary to raise or lower the vehicle . The engin e
need not be running, but the ignition switch mus t
be in the ON or ACCESSORY position . To rais e
the vehicle, place appropriate rocker switch in th e
RAISE position until desired height is reached
,
then return rocker switch to OFF
. To lower th e
vehicle, place appropriate rocker switch in th e
LOWER position until desired height is reached ,
then return rocker switch to OFF . (It is possibl
e
that the air compressor may operate for a shor t
period when a rocker switch is in LOWER position . )
When both sides of the vehicle have been leveled ,
be sure the TRAVEL switch is moved to HOL D
and turn ignition switch to OFF .
When you resume traveling, if leveling syste m
was used, place center rocker switch in AUTO posi-
tion for approximately 5 minutes, then move th
e
switch to HOLD after ride height has been achieved
.
The HOLD position is to be used for normal highwa
y
driving
. If the leveling system has not been used ,
it is not necessary to place TRAVEL switch in AUT O
when you resume traveling .
When traveling off the road, both RAISE-LOWE
R
switches should be in RAISE position to allow maxi -
mum ground clearance
. It is recommended tha
t
you not exceed 15 mph in this position since th e
air suspension has maximum pressure
.
A "Set Level to Travel Auto" reminder ligh t
in the dash panel will come on any time the engin
e
is running and the transmission selector lever i
s
moved to Drive (D) range (see the Chassis and Bod
y
Operating Manual for emergency operation an
d
maintenance instructions for the suspension an
d
leveling systems) .
NOTE
: When the unit has been leveled side-
to-side and front-to-back, you may wish t o
permanently attach levels inside near the driver ,
on the sidewall and dash panel
. This will allo
w
you to tell at a glance if you've stopped on
a
level site and will help speed up the levelin
g
process .
TABLE
S
WALL MOUNT TYPE — To install the wal l
mount type table, raise the front edge about one
foot above the wall mount rail
. Hook table rail ont o
the wall rail (both ends of the table rail are crimpe
d
to prevent the table from sliding off)
. Release tabl e
leg by depressing latch, pull the leg down until i
t
catches in upright position
. Travel leafs may b
e
folded up when traveling to provide recessed coaster s
for holding cups or glasses
. To increase table surface ,
extend the supports (two per leaf) and unfold leaf
.
PEDESTAL TYPE — Remove plug from floo r
base and insert table leg
. Lower table support bracke t
onto the leg . The pedestal table also has foldou
t
leafs with recessed coasters for cups or glasses . Whe n
the table leg is not being used, store it and replac e
floor base plug .
EXTENSION TYPE — Unfasten travel latch
.
Swing table up and release table leg by depressin g
lever ; swing leg down to the locked position
. Releas e
the latch located under the table
. Pull out the slidin g
portion of the table
. Insert leaf(s) and push tabl e
together .
8

THREE-WAY DINETTE SEAT — To chang e
seat direction, pull out the handle
; lift and rotat e
backrest to face in other direction . Press down o n
seat and push in on the handle . Test the seat to mak e
sure it is locked in place. The front dinette seat i s
not designed to be occupied while traveling .
BED S
THREE-WAY DINETTE SEAT/BED — To mak e
the three-way dinette seat into a bed, remove th e
dinette table . Be certain the seats are in the table set -
up position . Pull out the handle and push down o
n
the backrest
. Push the handle back into the locke d
position . Repeat this procedure on the opposit
e
seat to assemble the other half of the bed
.
LOUNGE BEDS — The seat portion of the loung e
in 26' SB and 26' RB models are twin beds, read y
for use . After unfastening the snap button, the fron t
edge of the lounge in the 23' RB model can b e
lifted and the legs beneath pulled down and locke d
into place to make a wider bed . The facing lounge s
in the 23' SB operate the same way and whe n
extended, join to make one large bed (the extensio n
table first must be lowered and latched in its trave l
position) .
SWING-UP BUNK — The back of the lounge s
in 23' RB and 26' RB models, lift up and fold out t o
form an upper bunk. Insert the support straps int o
the recessed holding brackets in the ceiling .
U-SHAPE BED — The U-shape dinette convert
s
into a large bed
. Remove the pedestal table, plac e
it on the seat supports and arrange cushions on top .
9

PULL-DOWN BED — To use the pull-down be d
(optional in 23' SB model), unfasten the latch an d
pull down and push until the bed is locked into place .
I 1
NOTE : Optional sofas, available on all model s
to replace the 3-way dinette, also can be con-
verted into beds .
DIVIDER DRAPES — Divider drapes to separat e
the driving and living areas are standard in all models .
The drapes slide on ceiling tracks and can be pulle d
together to close off the driver area . When open, th e
drapes can be attached at either side of the uni t
with tiebacks . A center privacy drape is an availabl e
option on 26' RB models .
CARE OF CUSHION FABRICS — Use a mil
d
soap and water solution to clean cushion covers
.
CARE OF DRAPES, CURTAINS — The drape
s
in your motor home should be dry cleaned only
.
CARE OF SHADES — Use a mild soap and wate
r
solution to clean the shades . The wood-woven shade
s
in some models should be vacuumed only .
CARE OF CARPET — Vacuum the carpet a
s
needed and use any household type carpet cleaner .
CARE OF WOODWORK — Clean the woodwor k
with regular household furniture polish . DO NO T
use water to clean wooden surfaces . Scuffs ma y
be covered with furniture wax and stain mixture
.
Scratches may be covered with Almond Stick .
BASIC SYSTEM
S
GENERA L
The basic utility systems in your Jimmy moto r
home can be classified under four titles — Electrical ,
LP Gas, Fresh Water and Drainage/Sewer . Thi s
section outlines these systems, describing thei r
operation, function and simple maintenance . I t
is not intended as a service guide . Your motor hom e
has been engineered and built to provide trouble-fre e
operation, but should a problem arise, we recommen d
that you contact your authorized GMC dealer
.
A monitoring panel allows you to check th e
condition of most systems conveniently from th
e
interior of your motor home . It has indicators t
o
show the volume of fresh water, LP gas, waste an d
gray water in your holding tanks, and the conditio n
of your RV battery . The monitoring panel als o
contains the water pump switch ; the generato r
remote START/STOP switch, and the generato r
hours-of-operation meter .
ELECTRICA L
GENERA L
Your motor home has two separate electrica l
systems, providing you with power while you ar e
camped or traveling . There is a 12-volt direct curren t
system, such as those in automobiles, and a 120-vol t
alternating current system, which requires an externa l
source of 120-volt electricity, provided by a connec-
tion to a campsite or household receptacle or by a n
optional generator . The 120-volt system should b e
10

used whenever a 120-volt hookup is available t o
reduce the load on your 12-volt battery
. The 12-vol t
system is supplied by batteries and is used whe n
you are on the road or in campsites which do no t
provide 120-volt hookups . Because most component s
in your motor home, such as the water pump, rang e
hood light and fan, interior lights and interior 12-vol t
receptacles, operate only on a 12-volt source, you r
vehicle is equipped with a power converter whic h
changes 120-volt AC to 12-volt DC power .
120-VOLT SYSTE M
The 120-volt system supplies electricity fo r
optional roof air conditioners, the refrigerator ,
power converter for the 12-volt system, the exterio r
120-volt receptacles (Figure 1), and the 120-vol t
receptacles located throughout your motor home ,
which are used to operate regular household appli-
ances
. Whether you use the external 120-volt Shore -
line connection or an auxiliary generator, the powe
r
source is connected directly into the main electrica l
service panel and is distributed through circui t
breakers .
GROUND FAULT INTERRUPTER — The bat h
and exterior receptacles are connected to a Groun
d
Fault Interrupter (GFI)
. This highly-sensitive circui t
breaker will help protect against severe electrica
l
shock if a ground fault develops
. If this occurs ,
the GFI will break the circuit by turning the powe
r
off to those receptacles . Should this happen, unplu
g
all appliances on that circuit and reset the breaker
.
CAUTION
: The GFI does not completel y
eliminate electrical shock
. Small children an d
persons with heart conditions or other disabil-
ities that make them especially sensitive t o
electrical shock may still be injured by a ground
fault on the bath or exterior receptacles
.
Test the GFI system at least once a month
,
preferably before each trip
. Depress the PUSH T O
TEST button . The button will pop out if the circui
t
breaker is operating properly
. Power will be of f
at bath and exterior receptacles
. Plug a test light
into these outlets to verify power is off
. To restor e
power, push in the button .
NOTE
: if the button does not pop out or th e
test light indicates a live circuit, DO NO T
use the outlets
. Call your GMC dealer .
SHORELINE CONNECTION — The Shorelin
e
(Figure 2) is a 25', 30-amp power cord with a 3-pron
g
grounding plug on one end, permanently attached a
t
the other end to the service panel . It can be pulle
d
from its storage compartment through a hatch i
n
the sidewall of your vehicle and connected to a
n
external 120-volt receptacle
. Some campsites an
d
trailer parks still have two-slot receptacles . If it i
s
necessary to use a three-to-two adapter, be certai
n
its grounding wire is fastened securely to the outle
t
grounding screw
. If in doubt, you may attach
a
No
. 6-AWG copper wire to the frame of the vehicl
e
and fasten it to an 8-inch copper or brass stak
e
driven into the ground .
The 120-volt system is protected by the circui
t
breakers
. If a circuit breaker opens, unplug th
e
appliances on that circuit, allow a short period fo
r
the breaker to cool, then reset the breaker . If th
e
breaker continues to open, contact your GMC dealer
.
12-VOLT SYSTE M
The 12-volt system, which includes the automo-
tive and RV batteries (Figures 3 and 4), plus the 12
-
11

volt converter, supplies power to the exterior an
d
interior lights, the range hood fan and light, th
e
furnace blower, water pump and porch light
. Th e
12-volt energy is supplied by the automotive battery ,
RV battery or the power converter
.
The automotive battery and alternator suppl
y
12-volt power to the engine ignition system, th
e
dashboard lights and accessories, headlights, tail
-
lights, backup lights, clearance lights, turn signal
s
and warning flasher lights. The automotive alternato
r
also will charge the RV battery, although an isolato
r
prevents the RV system from drawing power fro
m
the automotive battery .
The RV battery supplies power to the furnac e
blower, water pump, power vent, range hood fa n
and light, interior 12-volt receptacles, interior lights ,
refrigerator and monitoring panel . The 12-vol t
receptacles can be used only for appliances specif-
ically designed for that type of energy
. The R
V
battery also is charged by the power converte
r
whenever you are using a Shoreline connectio n
or generator .
AUXILIARY BATTERY — Check the liquid leve l
at least once a month . It must be above the plates .
The battery manufacturer approves using a goo d
grade of drinking water, excluding mineral water .
Keep terminals free of dirt and corrosion . Use a
hydrometer to check battery charge . When specifi c
gravity is below 1 .255, recharge the battery unti l
1
.260 is indicated .
CAUTION : If the battery must be "Quic k
Charged", turn off the refrigerator .
CONVERTER — The power converter transform s
120-volt AC into 12-volt DC and supplies powe r
to all of the 12-volt systems except the refrigerato r
when it is supplied by a 120-volt source . Each 12-vol t
circuit is protected by a fuse in the Distributio n
Panel which is wired to the converter . Raise th e
Distribution Panel door to expose the fuses . A listin g
of the circuits is next to each fuse . Some fuse s
protect circuits with more than one function, other s
may be for specific appliances
. If a fuse breaks ,
turn off or unplug all appliances on that circuit .
Replace the broken fuse with one of the same amper e
rating . If the fuse continues to break, contact you
r
GMC dealer .
GENERATO
R
The optional generator (Figure 5) is a gasolin
e
powered appliance which will supply 120-volt elec-
tricity while you are camped or traveling
. A remot e
generator START/STOP switch is mounted on th
e
monitoring panel, beneath the generator running
-
time meter . Another START/STOP switch is mounte
d
on the generator . There is an Interlocking Devic
e
attached to the circuit breakers for the Shoreline an d
Generator in the Service panel, which prevents th e
simultaneous use of both systems
. When you push th e
Shoreline Breaker ON, the Interlocking Devic e
automatically pushes the Generator breaker OFF
,
and vice versa . You can, however, turn both breaker
s
to OFF at the same time . Before starting your gener-
ator, switch both breakers to OFF .
Open the generator access door and depres s
the buttons on the two latches to slide out th e
generator . A safety latch (on the right side nea r
the top) just inside the front panel must be presse d
to allow the generator to slide all the way out . Thi s
safety latch also prevents the generator from acci-
dentally opening during travel .
The complete operation and maintenance pro-
cedures for your generator are in the generato
r
manufacturer's manual, but below are a few of th
e
basic requirements
:
Make certain the generator crankcase oil is t o
the FULL mark
; that air flow to and from the powe r
plant is unobstructed, and that cooling fins ar
e
clean . Push START/STOP switch to the start positio
n
and hold until generator is running, then releas
e
switch . Damage may result if starter is operate d
for more than 30 seconds . Allow the generator t
o
warm up before switching the circuit breaker in th
e
Service panel to ON . To stop, press the START
/
STOP switch to the stop position. If the generato r
has been running with a full load connected, switc h
the Generator and Shoreline circuit breakers OF F
and allow the generator to run a few minutes befor e
pushing stop switch .
Check the oil daily or at least every 8 hours o
f
operating time
. Clean the cooling fins at least ever
y
200 hours
; remove any dust, dirt or oil which ma y
have accumulated
. Change oil in a new generato r
after the first 25 hours of operating time and ever
y
100 hours thereafter
. Use oil specified in the manu-
facturer's manual
. Change the oil filter every 20 0
hours . Check the air cleaner element every 100 hours
;
clean it by tapping it against a flat surface
. Chang e
the air cleaning element at least every 400 hours
.
The schedules above are only a guide ; when th
e
generator is used in extremely dusty or cold condi-
tions, all maintenance steps may need to be mor e
frequent
.
WARNING : When running, the engine powerin g
a generator can discharge carbon monoxide gas ,
which can cause death if inhaled even for a
short period . Although exhaust fumes ar e
usually readily evident, carbon monoxide i s
particularly dangerous because it is colorles s
and odorless. When operating a generator, D O
NOT open roof vents, windows or doors which

could draw fumes into your unit . DO NO T
operate the generator where an object, such a s
a tree, bush or building, may deflect exhaus t
fumes inside your unit . DO NOT operate th e
generator inside a building unless the exhaus
t
is vented safely outside
. DO NOT operate th e
generator where exhaust gas could accumulat e
and seep back inside an occupied vehicle, ten t
or building
.
FRESH WATER SYSTE M
GENERA L
Fresh water for your unit is supplied either b y
the vehicle's fresh water tank or an external pres-
surized source . Both supply water to the kitche n
sink, tub/shower, lavatory, toilet and water heater .
WATER TAN K
Unlock the door to expose the gravity water fil l
(Figure 6) . Use a hose or vessel to fill the water tank .
Water will flow out the fill opening when the tan
k
is full .
WATER PUM P
Your water pump is a 12-volt DC appliance ,
activated by a switch on the Monitoring Panel . Yo u
may leave the switch ON while camping . This arrange -
ment is known as a demand system . When you want
water, simply open a faucet ; the pump will run onl y
as long as needed . If the pump fails to start whe n
the switch is ON, check the fuse located in th e
fuse panel . If the pump continues to operate, whethe r
the faucets are opened or closed, check the wate r
tank, it is probably empty .
SANITIZING WATER TAN K
Sanitize your unit's water tank before initia l
use, after a period of nonuse, and whenever th
e
tank is suspected of being contaminated . Open th
e
water tank drain valve . When the tank is empty ,
close the valve . Mix 3 gallons of water with 3/4 cu p
liquid household bleach . Pour the solution into th e
tank through the gravity fill . Wait 3 hours, drain an d
flush with fresh, potable water . If chlorine tast e
lingers, pour 1 quart of vinegar and 5 gallons of wate r
into the tank
. Wait several days before drainin g
water
. Flush tank with fresh, potable water
.
CITY WATE
R
Connect a hose to a "city" pressurized wate r
faucet and to the vehicle's water inlet (Figure 7) .
When using the city water hookup, the water tan k
and pump are bypassed . You cannot fill the wate r
tank through the city water inlet .
Although a common garden hose can be use d
to fill water tanks and to connect to city water ,
longtime RV'ers recommend a hose specificall y
manufactured for this purpose .
CAUTION : In areas where city water pressur
e
exceeds 60 psi, you should use a pressur
e
regulator . Excessive water pressure may damag
e
lines and connections
. See your GMC deale r
for further details .
WATER PURIFIE R
The optional water purifier is designed to provid e
clear, good-tasting, bacteria-free drinking water . I t
is connected to the cold water line below the sin k
and attached to a special faucet on the sink ledge .
Push down on the lever for a restricted flow of wate r
or lift the lever for an unrestricted, continuous flow .
See the manufacturer's instruction booklet fo r
backflushing the purifier element and maintenance .
CARE OF SINKS, LAVATORY &
TUB/SHOWE R
Clean the kitchen sink, lavatory, tub and shower -
13

pan with non-abrasive cleaner . Stainless steel cleane
r
may be purchased at most grocery stores
. AB S
cleaner, such as Aqua K-7, may be purchased fro
m
your GMC dealer .
LEAK S
Traveling over bumpy or rough roads can caus
e
pipe fittings to loosen
; check pipe fittings regularl y
for signs of leakage .
DRAINAGE/SEWER SYSTE
M
GENERA L
Your motor home will have a Drainage/Sewe r
system which functions much the same as the on
e
in your home. It includes drain lines from the kitche
n
sinks, lavatory, and tub/shower to the gray wate r
holding tank and a marine-type toilet which emptie s
directly into a separate waste holding tank . Th e
drainage system also includes vents which carry odor s
(caused by drain water and waste) out through th
e
roof, while equalizing air pressure
. The latter i s
necessary to maintain a water barrier against odor s
in the "P" traps and to ensure smooth flow an d
escape for your drainage system .
DRAIN CAR E
Use clear water to clean exterior pipe surfaces .
DO NOT use harsh drain cleaner chemicals or solvent s
in drains . Drain cleanouts are installed at interval s
to facilitate drain line cleaning or unclogging . Us e
a wrench to remove and replace drain cleanout plug
.
TOILET
Jimmy installs either a Galaxy or Starlite mode l
Aqua Magic marine toilet
. Each model has tw o
pedals near the front base for flushing and addin g
water
. To operate the toilet, step on the small peda l
to add water to the bowl . When the desired amoun
t
has entered, release the pedal slowly . To flush, ste p
on the large pedal until water swirls, then releas e
pedal slowly
. Before initial use and after emptyin g
the holding tank, flush the toilet . When the bow l
is filled, pour in 8 ounces of Aqua-Kem concentrate,
then flush the toilet again. This will help to contro l
odors .
CARE OF TOILET — Use Aqua Bowl Cleane r
as directed . DO NOT use highly-concentrated o r
high-acid household cleaners (NO SCOURIN G
POWDER) to clean the bowl . If the slid e
valve does not move freely, apply silicone spray .
HOLDING TANK S
A gray water holding tank is for kitchen sink ,
tub/shower and lavatory water ; a waste holding tan k
is for the marine toilet . Each should be emptie d
frequently, always in a specified dumping station .
Most campgrounds are equipped with dumpin g
stations, often at each campsite
; many service station s
also have waste dumping stations
. Avoid having t
o
empty tanks too often by using restroom facilitie s
when available. You can prevent unnecessary accum-
ulation of solids in the waste holding tank by no t
putting facial tissues or similar items into the toilet .
EMPTYING HOLDING TANKS — Be certai n
your vehicle is level since emptying of holding tank s
depends on gravity . Remove the sewage drain hos e
from its storage container (Figure 8) . Remove the ca p
from the termination outlet (Figure 9) and connec t
the sewage drain hose . If you leave the drain hos e
connected to the termination outlet when yo u
are camped, DO NOT open the termination valv e
until you want to empty the holding tank. Th e
system is not like your plumbing at home wher
e
waste is flushed directly into the sewer system .
Instead, if the valve is left open only liquid wast
e
may drain out, causing solids to collect and harde n
in the bottom of the holding tank .
To drain either holding tank, pull out the dum p
valve slide handle (Figure 9) . You can empty th e
left-hand holding tank by opening only the dum p
valve handle on the left . To empty the right-han d
holding tank, both dump valve handles must b
e
open
. Flush or pour about two gallons of wate r
through the toilet when emptying the waste holdin g
tank and drain again
. This flushes the tank an d
helps clean the drain hose . Repeat as necessary .
14

Follow the same procedure for a gray water holdin g
tank, although a repeat flushing may not be neces-
sary . When the tanks are empty, push in the dum p
valve handles until they seat . Remove the hose
,
wash it and return it to the storage container . Replac e
termination outlet cap .
LP GAS SYSTE M
GENERA L
The Liquefied Petroleum (LP) Gas System i n
your unit furnishes fuel for hot water, heat, cooking ,
and refrigeration
. LP gas, a by-product of the petro-
leum refining process, provides a portable, efficien t
and inexpensive source of energy
. It is stored in a
tank (Figure 10) in a compartment of your unit
.
Under pressure in the tank, the LP gas turns t o
vapor ; it is the vapor which burns
. Each tank has a
20% liquid level gauge which allows space in th
e
bottle for vapor expansion
. The high pressure of th e
vapor in the bottle is reduced in two stages through
a
regulator . The tank pressure will vary with tempera-
ture and altitude, but may be 100 to 250 pound s
per square inch or more
. It is reduced to abou t
12 psi in the first stage, then to about 6-1/4 ounce s
in the second stage (the 6-1/4 ounces per square inc h
also is expressed as 11 inches of water column)
.
The LP gas is propane or a blend of propane an
d
butane, depending upon your locale
.
The LP gas system is designed and built to rigi
d
standards and tested before leaving the factory
.
Your GMC dealer also tests the system prior t
o
delivery to you
. Except for simple maintenanc
e
and occasionally tightening a connection, you shoul
d
take your unit to an authorized GMC dealer fo
r
LP gas problems
. The LP tank should always b e
filled by an authorized LP supplier
.
NOTE
: Jimmy Motor Homes is not responsibl
e
for personal injury or property damage resultin g
from improperly maintained LP gas appliance
s
and systems
.
LP gas burns readily and with intense heat
. With
proper care and maintenance,
it is safe and efficient .
However, there are certain characteristics of L
P
gas of which you should be aware
. In its natura l
state, LP gas is odorless, but an additive gives it
a
distinctive odor so that leaks may be readily detected .
WARNING
: For your safety, if you smell gas :
1. Open all window s
2. DO NOT touch electrical switche
s
3. Extinguish any open flam
e
4. Close Service valv
e
5.
Immediately call your gas supplie r
LP gas is heavier than air and tends to collec t
in low pockets
. As LP gas settles into any close d
area, it displaces air and thus could cause suffocatio
n
if not detected
. It could also create a fire or explosio n
hazard
.
Before using any LP gas appliance, read th
e
respective manufacturer's instruction manual
.
CLIMATE DIFFERENCE
S
The appliances will not function if the LP ga
s
does not vaporize
. Butane will not vaporize belo w
32 degrees F
.(the freezing point of water), bu
t
propane will continue to vaporize down to 44 degree
s
below zero
. Propane has become the main type o
f
LP gas used in RV's in recent years
. Your LP supplie
r
will have the correct type or blend for your locale .
If your travels will take you into an area wher
e
climate differs, ask your LP dealer for his recom-
mendations
. The names of LP suppliers can be foun
d
in the yellow pages of your telephone directory unde
r
"Gas-Liquefied Petroleum - Bottled & Bulk"
. Man y
campgrounds now have LP gas fill facilities, as d
o
some service stations
.
To operate any LP gas appliance, the LP ga
s
tank's Service valve (Figure 10) must be OPEN
.
When first used, or after a refill, there may be som
e
air in the gas lines which will escape when you firs
t
open a range burner or similar LP gas valve
. The ai
r
may extinguish your match or igniter the first tim
e
or two, before you get ignition
. Remember, too ,
that when you close the tank's Service valve som
e
of the gas will remain in the lines
. To completel y
bleed the lines of gas, CLOSE the tank's Servic
e
valve and light a range burner to use up the excess
.
When the flame burns out, turn the range burner OFF
.
FILLING THE LP GAS TANK
Before having an LP gas tank filled, be certai
n
all burners and pilot lights are off
.
Drive your motor home to an authorized L P
supplier for filling (never remove the tank)
. He wil l
connect the
fill nozzle to the LP gas tank
fill valve .
The Service valve and the 20% liquid level gaug
e
must be open
. When liquid appears at the liqui
d
level gauge, the tank is filled to its LP capacity
.
Close the Service valve and the 20% liquid leve
l
gauge
. Do not use a wrench to tighten the Servic e
valve or the 20% gauge
; they are designed to be close d
15

leak-tight by hand
. If you cannot hand-tighte n
properly, the valve probably needs repair o
r
replacement .
Because there may be some leakage of LP ga
s
when the tank is being filled, we recommend tha
t
you drive at least a mile away from the LP ga
s
dealer's before you relight any pilot lights or appli-
ances
. DO NOT relight pilots or appliances if th e
scent of LP gas is present. Open the windows an
d
doors and wait 30 minutes . If the odor is still present
,
follow the instructions in the LP GAS LINE CHEC K
section .
CAUTION
: Avoid overfilling by insisting tha t
the LP gas bottle never be filled beyond th
e
20% liquid level
. if the bottle is overfilled ,
have the LP gas dealer bleed out the excess .
Overfilling does not allow sufficient spac e
for the liquid to expand . This can produc e
excessive pressure which can cause LP ga s
leaks, creating a potential fire or explosio
n
hazard
. DO NOT smoke, strike a match o r
ignite a lighter when the LP gas bottle is bein g
filled . A spark or flame could ignite fumes .
Be certain all burner and pilot flames are ou
t
and the Service valve is closed when filling you r
motor home's gasoline tanks .
LP GAS LINE
CHEC K
Check the gas line connection at least after eac h
third re-fill and inspect other connections regularly ,
at least every 30 days or 5,000 miles of travel . T
o
check, turn off all burners and pilot lights . Open al l
doors and windows . Open the LP gas bottle Servic e
valve and use soapy water, a bubble solution o r
approved leak detector to test all line connections .
Do not use products that contain ammonia o r
chlorine
. Bubbles indicate a leak . Tighten the con-
nections with two open end wrenches until bubble s
stop
. If leak persists, contact your GMC dealer .
REGULATOR PRESSUR E
Check the LP gas regulator at the beginning o
f
each season, or whenever a problem is indicated
.
Correct line pressure is 11 inches of water column .
Your GMC dealer or LP gas supplier can perfor m
this check .
LP GAS TANK CAR E
After each trip, inspect the LP gas tank
. San d
off traces of rust and apply a rust preventativ e
paint
. Always use a light color paint, which reflect s
heat
. When the LP gas system is not in use, th e
Service valve should be closed
.
APPLIANCES
AND ACCESSORIE S
RANGE, RANGE
HOOD, OVE N
GENERAL — Your Jimmy motor home wil
l
have a four-burner range and oven and a recesse
d
power range hood
. The range burners and oven are
LP gas appliances . You should read the manufac-
turer's manual for complete details on the operatio n
and care of the range, range hood and oven .
LIGHTING THE RANGE — Be certain the L P
gas Service valve is OPEN . Light a match and hol
d
it close to the range burner, then turn the burner'
s
control knob to full ON . Air in the line may cause a
blowing noise and may extinguish the match . Whe n
the line is free of air, the burner will light readily .
Adjust the burner flame with the control knob .
LIGHTING THE OVEN — Be certain the LP ga s
Service valve is OPEN . Depress and turn the ove n
control knob counterclockwise from PILOTS OF F
to OFF
. Open the oven door and hold a lighte d
match next to the constant pilot area . It is near th e
rear of the oven compartment, just below the mai n
oven burner . Relight the pilot if the air in the lin
e
extinguishes the flame . When the pilot remains lit ,
adjust the oven control knob to the desired tempera-
ture setting .
16