If you do not understand any portion of this manual,
contact Generac or your nearest Generac Authorized
Service Dealer for starting, operating and servicing pro
cedures.
Throughout this publication, and on tags and
decals affixed to the generator, DANGER, WARNING,
CAUTION and NOTE blocks are used to alert you to
special instruction about a particular operation that
may be hazardous if performed incorrectly or care
lessly. Observe them carefully. Their definitions are
as follows:
DANGER
______________
The operator (driver) is responsible for proper and
safe use of the vehicle and its equipment, and the safe
ty of all vehicle occupants. We strongly recommend
that the operator read this manual and thoroughly
understand all instructions before using this equip
ment. We also strongly recommend instructing other
occupants in the vehicle to properly start and operate
the generator. This prepares them if they need to oper
ate the equipment in an emergency.
♦ CONTENTS
This manual contains pertinent owner’s information,
including warranty, electrical diagrams, exploded
views and lists of repair parts for generator model
numbers 02010-0 and 04164-0. In addition, the lat
ter portion of this manual contains information nec
essary for the proper installation of these generators.
__________________________________
After this heading, you can read instructions that,
if not strictly complied with, will result in personal
injury or property damage.
—A WARNING A—
After this heading, you can read instructions that,
if not strictly complied with, may result in personal
injury or property damage.
--------M CAUTION ik
After this heading, you can read instructions that, if
not strictly complied with, could result in damage to
equipment and/or property.
NOTE:
After this heading, you can read explanatory
statements that require special emphasis.
These safety warnings cannot eliminate the hazards
that they indicate. Common sense and strict compli
ance with the special instructions while performing the
service are essential to preventing accidents.
Four commonly used safety symbols accompany the
DANGER, WARNING and CAUTION blocks. The type
of Information each indicates follows:
This symbol points out important safety informa
A
tion that, if not followed, could endanger personal
safety and/or property of you and others.
This symbol points out potential explosion hazard.
----------------
♦ OPERATION AND MAINTENANCE
It is the operator's responsibility to perform all safe
ty checks, to make sure that all maintenance for safe
operation is performed promptly, and to have the
equipment checked periodically by a Generac
Authorized Service Dealer. Normal maintenance ser
vice and replacement of parts are the responsibility of
the owner/operator and, as such, are not considered
defects in materials or workmanship within the
terms of the warranty Individual operating habits
and usage contribute to the need for maintenance
service.
Proper maintenance and care of your generator
ensure a minimum number of problems and keep
operating expenses at a minimum. See your Generac
Authorized Service Dealer for service aids and acces
sories.
♦ HOW TO OBTAIN SERVICE_____________________
When your generator requires servicing or repairs,
simply contact a Generac Authorized Service Dealer
for assistance. Service technicians are factory-trained
and are capable of handling all of your
service needs.
When contacting a Generac Authorized Service Dealer
or the factory about parts and service, always supply
the complete model number and serial number of your
unit as given on its data decal, which is located on your
generator.
_______________
This symbol points out potential fire hazard.
A This symbol points out potential electrical shock
SAVE THESE INSTRUCTIONS - The manufacturer suggests that these rules for safe
operation be copied and posted in potential hazard areas of the recreational vehicle,
Safety should be stressed to all operators and potential operators of this equipment. MM.
A
WARNING:
The engine exhaust from this product
contains chemicals known to the state
of California to cause cancer, birth
defects or other reproductive harm.
Study these SAFETY RULES carefully before
installing, operating or servicing this equipment.
Become familiar with this manual and with the unit.
The generator can operate safely, efficiently and reli
ably only if it is properly installed, operated and main
tained. Many accidents are caused by failing to follow
simple and fundamental rules or precautions.
Generac cannot possibly anticipate every possible
circumstance that might involve a hazard. The warn
ings in this manual, and on tags and decals
affixed to the unit, are, therefore, not all-inclusive. If
you use a procedure, work method or operating tech
nique Generac does not specifically recommend, you
must satisfy yourself that it is safe for you and others.
You also must make sure the procedure, work
method or operating technique that you choose does
not render the generator unsafe.
DANGER
Despite the safe design of this generator,
operating this equipment imprudently, neglecting
its maintenance or being careless can cause
possible injury or death. Permit only responsible
and capable persons to operate or maintain this
equipment.
Potentially lethal voltages are generated by
A
these machines. Ensure all steps are taken to
render the machine safe before attempting to
work on the generator.
Parts of the generator are rotating and/or hot
during operation. Exercise care near running
generators.
A GENERAL HAZARDS A
For safety reasons, Generac recommends
that the installation, initial start-up and mainte
nance of this equipment is carried out by a
Generac Authorized Service Dealer.
The engine exhaust fumes contain carbon monox
ide, which can be DEADLY. This dangerous gas, if
breathed in sufficient concentrations, can cause
unconsciousness or even death. This exhaust sys
tem must be installed properly, in strict compli
ance with applicable codes and standards.
Following installation, you must do nothing that
might render the system unsafe or in noncompli
ance with such codes and standards. The genera
tor compartment must be completely vapor sealed
from the vehicle interior. There must be no possi
bility of exhaust fumes entering the vehicle interi
or. Never operate this equipment with a leaking or
belts, fans, and other moving or hot parts. Never
remove any drive belt or fan guard while the unit is
operating.
Adequate, unobstructed flow of cooling and venti
lating air is critical to correct generator operation
and is required to expel toxic fumes and fuel
vapors from the generator compartment. Without
sufficient cooling airflow, the engine/generator
quickly overheats, which causes serious damage to
the generator. Do not alter the installation or per
mit even partial blockage of ventilation provisions,
as this can seriously affect safe operation of the
generator.
When working on this equipment, remain alert at
all times. Never work on the equipment when you
are physically or mentally fatigued.
Inspect the generator regularly, and contact your
nearest Generac Authorized Service Dealer immedi
ately for parts needing repair or replacement.
Before performing any maintenance on the genera
tor, disconnect its battery cables to prevent acci
dental start up. Disconnect the cable from the bat
tery post indicated by a NEGATIVE, NEG or (-)
first. Reconnect that cable last.
Never use the generator or any of its parts as a
step. Stepping on the unit can stress and break
parts, and may result in dangerous operating con
ditions from leaking exhaust gases, fuel leakage,
oil leakage, etc.
Generac* Power Systems, Inc.
Safety Rules
Generac Q-70G Recreational Vehicle Generator
SAFETY RULES
A
ELECTRICAL HAZARDS
The generator covered by this manual produces
dangerous electrical voltages and can cause fatal
electrical shock. Avoid contact with bare wires, ter
minals, connections, etc., while the unit is running.
Ensure all appropriate covers, guards and barriers
are in place before operating the generator. If you
must work around an operating unit, stand on an
insulated, dry surface to reduce shock hazard.
Do not handle any kind of electrical device while
standing in water, while barefoot, or while hands
or feet are wet. DANGEROUS ELECTRICAL
SHOCK MAY RESULT.
During installahon onto the vehicle, have the genera
tor properly grounded (bonded) either by solid
mounting to the vehicle frame or chassis, or by
means of an approved bonding conductor. DO NOT
disconnect the bonding conductor, if so equipped.
DO NOT reconnect the bonding conductor to any
generator part tliat might be removed or disassem
bled during routine maintenance. If the grounding
conductor must be replaced, use only a flexible con
ductor that is of No. 8 American Wire Gauge (AWG)
copper wire minimum.
In case of accident caused by electric shock, imme
diately shut down the source of electrical power. If
this is not possible, attempt to free the victim from
the live conductor, AVOID DIRECT CONTACT
WITH THE VICTIM. Use a nonconducting imple
ment, such as a rope or board, to free the victim
from the live conductor. If the victim is uncon
scious, apply first aid and get immediate medical
help.
Never wear jewelry when working on this equip
ment. Jewelry can conduct electricity resulting in
electric shock, or may get caught in moving com
ponents causing injury.
A
A
FIRE HAZARDS
For fire safety, the generator must be installed and
maintained properly. Installation always must
comply with applicable codes, standards, laws and
regulations. Adhere strictly to local, state and
national electrical and building codes. Comply
with regulations the Occupational Safety and
Health Administration (OSHA) has established.
Also, ensure that the generator is installed in
accordance with the manufacturer’s instructions
and recommendations. Following proper installa
tion, do nothing that might alter a safe installation
and render the unit in noncompliance with the
aforementioned codes, standards, laws and regu
lations.
Keep a fire extinguisher in the vehicle at all times.
Extinguishers rated “ABC” by the National Fire
Protection Association are appropriate for use on
the recreational vehicle generator electrical system.
Keep the extinguisher properly charged and be
familiar with its use. If you have any question per
taining to fire extinguishers, consult your local fire
department.
A
EXPLOSION HAZARDS
Do not smoke around the generator. Wipe up any
fuel or oil spills immediately. Ensure that no com
bustible materials are left in the generator com
partment, or on or near the generator, as FIRE or
EXPLOSION may result. Keep the area surround
ing the generator clean and free from debris.
Gasoline is extremely FLAMMABLE and its vapors
are EXPLOSrVTl. Do not permit smoking, open
flame, sparks or any source of heat in the vicinity
while handling gasoline. Comply with all laws gov
erning the storage and handling of gasoline.
This generator may use liquid propane (LP) gas as
a fuel. LP gas is highly EXPLOSIVE. The gas is
heavier than air and tends to settle in low areas
where even the slightest spark can ignite the gas
and cause an explosion.
A
Generac* Power Systems, Inc.
GENERAL
INFORMATION
Section 1 - General Information
Cenerac Q-70G Recreational Vehicle Generator
l.l GENERATOR IDENTIFICATION
Please record the following information from the generator DATA DECAL or information decal.
1. Model Number_________________________2. Serial Number
3. kW Rating
5. Phase________________________________6. Hertz
____________________________
4. Rated Voltage
____________________________________
____________________________
____________________________
1. Generator Air Intake Screen
2.
Data Plate
3.
Engine Start/Stop Switch
4.15 amp Fuse
5.30 amp Circuit Breaker
6.Optional Remote Panel Receptacle
7.Generator AC Output Leads
Generac* Power Systems, Inc.
REFERENCE NUMBER IDENTIFICATION
8,Starter Contactor
9.Fuel Inlet
10.
Fuel Primer Switch
11.Fuel Pump
12.
Oil Filter
13.Oil Drain Plug
14.Oil Dipstick and Filler Tube
Section 1 - General Information
Generac Q-70G Recreational Vehicle Generator
GENERAL
INFORMATION
1.2 GENERATOR APPLICABILITY
These generators have been designed and manufac
tured for supplying electrical power for recreational
vehicles. You should not modify the generator or use
it for any application other than for what it was
designed. If there are any questions pertaining to its
application, write or call the factory. Do not use the
unit until you have been advised by a competent
authority.
DANGER
For fire safety, the generator must have been
A
properly installed in compliance with ANSI
119.2-1975/NFPA 501C-1974, "Standard for
Recreational Vehicles, Part III - Installation of
Electrical Systems." The generator also must
have been installed in strict compliance with
the manufacturer's detailed installation instruc
tions. After installation, do nothing that might
render the unit in noncompliance with such
codes, standards and instructions.
You can use this generator to supply electrical power for
operating 230-volt, single-phase, 50 Hertz, AC electrical
loads. These loads can require up to 7,000 watts (7.0
kW) of power, but cannot exceed 30.4 AC amperes of
current at 230 volts.
Owners/Operators should make sure nothing is done
during installation that might render the unit unsafe
or in noncompliance with applicable codes standards
and instructions. They should be sure the unit has
been installed to allow adequate ventilation for cool
ing and exhaust air.
1.4 SAFETY
Before attempting to use the generator set, carefully
read the “Safety Rules” section of this manual.
Comply strictly with these rules to prevent accidents
and damage to equipment and/or property. We sug
gest copying and posting the “Safety Rules” in poten
tial hazard areas of the vehicle. Stress safety to all
operators and potential operators of this equipment.
1.5 GENERATOR AC
CONNECTION SYSTEM
This generator set is equipped with dual stator AC
power windings. These two-stator windings supply
electrical power to customer electrical loads by
means of a dual two-wire connection system. Note,
however, that the neutral is grounded.
Figure 1.1 - Connections for 230 Volts Only
--------M. CAUTION M.
Do not overload the generator. Some installa
A
tions may require that electrical loads be alter
nated to avoid overloading. Applying excessive
ly high electrical loads may damage the genera
tor and may shorten its life. Add up the rated
watts of all electrical lighting, appliance, tool
and motor loads the generator will power at
one time. This total should not be greater than
the wattage capacity of the generator. If an
electrical device nameplate gives only volts and
amps, multiply volts times amps to obtain watts
(volts X amps = watts). Some electric motors
require more watts of power (or amps of cur
rent) for starting than for continuous operation.
------------
13 INSTALLATION
This manual has been prepared under the assump
tion that a competent, qualified technician installed
the generator into a recreational vehicle. We also
assume the installer complied with all applicable
codes, standards and regulations pertaining to instal
lation.
Generac* Power Systems, Inc.
GENERAL
INFORMATION
Section 1 - General Information
Generac Q-70G Recreational Vehicle Generator
1.6 SPECIFICATIONS
♦ 1.6.1 FUEL REQUIREMENTS
These generators are equipped with a gasoline fuel sys
tem. Depending on the installation, the generator may
have either a separate fuel tank, or it may “share” the
vehicle engine’s fuel tank.
NOTE:
Some installations using a “shared” fuel tank may
have a generator fuel pickup tube that is shorter
than the vehicle engine’s pickup tube. Such an
arrangement causes the generator engine to “run
out of gas” while adequate fuel for the vehicle
remains in the tank.
lb reduce lead and carbon deposits use high quality
UNLEADED gasoline with the generator. Leaded REG
ULAR grade gasoline is an acceptable substitute.
NOTE:
Using unleaded gasoline contributes to longer
engine valve life by reducing lead and carbon
deposits.
---------Jk CAUTION Jk---------------
Generac does not recommend using any
gasoline containing alcohol (such as "gasohol").
If you use any gasoline containing alcohol, it
must not contain more than 10 percent ethanol,
and it must be removed from the generator
during storage. Do NOT use any gasoline
containing methanol. If you use gasoline with
alcohol, inspect more frequently for fuel leaks
and other abnormalities.
♦ 1.6.5 ENGINE
______________________________
туре of Engine .....................................GN-480, T\vin-cylinder
Use only high quality detergent oil classified “For
Service SF” and with an oil viscosity rating of SAE
lOW-30 oil. Do not pour in any additives to the rec
ommended oil. Engine crankcase capacity is 1.4
liters. See Section 3.2 on page 11 for oil level check
and filing procedures.
Generac® Power Systems, Inc.
Section 2 - Operation
Generac Q-70G Recreational Vehicle Generator
OPERATION
2.1 GENERATOR CONTROL PANEL
The following features are mounted on the generator
control panel (Figure 2.1):
Figure 2.1 - Generator Control Panel
START 15A BREAKER
♦ 2.1.1 FUEL PRIMER
Before starting a cold engine (if it has not been start
ed in more than two weeks), you must press this
switch for approximately five seconds to bring fuel
from the tank to the fuel pump. This rocker type
switch springs back into its original position when
you release it.
♦ 2.1.2 START/STOP SWITCH
To crank and start the engine, hold this switch in the
START position. Release the switch when the engine
starts. To stop an operating engine, press and hold
the switch in the STOP position until the engine shuts
off. The switch center position is the RUN position.
IVIAIIM
NOTE:
If this generator has been reconnected for dual
voltage AC output (115/230 volts), you can install
line breakers having an amperage rating that is
different than that stated in Section 1.4 (Page 5).
The replacement line breakers consist of two sep
arate breakers with a connecting piece between
the breaker handles (so that both breakers will
operate at the same time).
2.2 OPTIONAL REMOTE
START/STOP PANEL
A remote mounted Start/Stop Panel (Figure 2.2) is
available that allows you to start and stop the gener
ator engine conveniently from inside the vehicle. The
model 9042 remote panel includes a Start/Stop
switch and a generator run lamp.
Figure 2.2 — Optional Remote Panel
(Model 9042)
0
GENERAC
R.V.
GENERATOR
♦ 2.1.3 FUSE
The fuse protects the engine’s DC control circuit
against electrical overload. If the fuse element has
melted open due to overloading, the engine cannot be
cranked. If you must replace the fuse, use only an
identical replacement.
♦ 2.1.4 MAIN BREAKER
The main breaker protects the generator’s AC output
circuit against overload and provides a method of
turning OFF the generator’s 115/230-volt AC output
to the vehicle circuits. This generator has two 30-amp
circuit breakers.
2 J AUTOIVlATiC CHOKE
This engine is equipped with an automatic choke that
consists of two main components: a choke solenoid
and prechoke.
♦ 2.3.1 CHOKE SOLENOID
During engine cranking (Start/Stop switch at
START), a solid-state choke module signals the
choke solenoid to activate and cycle (choke on/choke
off) until the engine starts. The choke solenoid thus
opens and closes the carburetor choke valve only
when the engine is cranking. When the engine starts,
the choke stops cycling,
The choke system also has a temperature-sensitive
metal strip that adjusts choke valve angle according
to ambient temperatures (i.e., in cold ambient tem
peratures, choke valve closes more). Once the engine
starts, an element heats the temperature-sensitive
strip to a normal operating condition, opening the
choke valve. This may take about three minutes in
cooler weather.
2.4 BEFORE STARTING THE ENGINE
NOTE:
Instructions and information in this manual
assume the generator has been properly installed,
connected, serviced, tested and adjusted by a
qualified installation technician or installation
contractor.
♦ 2.4.1 [NSTALLATION
Generator installation must have been properly com
pleted so it complies with all applicable codes, stan
dards and regulations and with the manufacturer's
recommendations.
♦ 2.4.2 ENGINE LUBRICATION
Have the engine crankcase properly serviced witli the
recommended oil before starting. Refer to Section 1.6.3
(Page 6) and Sections 3.1 and 3.2 (Page 11) for oil ser
vicing procedures and recommendations.
------
Jk CAUTION M
Any attempt to crank or start the engine before
A
you have properly serviced it with the recom
mended oil may result in an engine failure.
♦ 2.4.5 FUEL SUPPLY___________________
The engine must have an adequate supply of proper
fuel to operate. Before starting it, check that sufficient
fuel is available.
Depending on the installation, the generator may
have either a separate fuel tank, or it may “share”
the vehicle engine’s fuel tank.
♦ 2.4.4 COOLING AND VENTILATING AIR
Air inlet and outlet openings in the generator com
partment must be open and unobstructed for contin
ued proper operation. Without sufficient cooling and
ventilating airflow, the engine/generator quickly over
heats, which causes it to shut down and may damage
the generator.
___________________________
-----------
_________
NOTE:
♦ 2.4.5 ENGINE EXHAUST GAS
Before starting the generator engine, you should be
sure there is no way for exhaust gases to enter the
vehicle interior and endanger people or animals.
Close windows, doors and other openings in the vehi
cle that, if open, might permit exhaust gases to enter
the vehicle.
____________________
DANGER
The generator engine gives off DEADLY carbon
A
monoxide gas through its exhaust system. This
dangerous gas, if breathed in sufficient concen
trations, can cause unconsciousness or even
death. Never operate the generator set with
the vehicle inside any garage or other enclosed
area. DO NOT OPERATE THE GENERATOR IF THE
EXHAUST SYSTEM IS LEAKING OR HAS BEEN
DAMAGED. SYMPTOMS OF CARBON MONOX
IDE POISONING ARE (a) inability to think coher
ently; (b) vomiting: (c) twitching muscles; (d)
throbbing temples; (e) dizziness; (f) headaches;
(g) weakness; and (h) sleepiness. IF YOU FEEL
ANY OF THESE SYMPTOMS, MOVE INTO FRESH
AIR IMMEDIATELY. IF SYMPTOMS PERSIST, GET
MEDICAL HELP.
2.5 STARTING THE GENERATOR
To start the generator from either the generator con
trol panel or from the optional remote panel, proceed
as follows;
1. Turn OFF electrical loads using the means pro
vided in your vehicle (such as a main line circuit
breaker or transfer switch).
NOTE:
If starting from the generator control panel, turn
OFF loads by setting the generator’s main circuit
breaker to the OFF (or open) position. If starting
from a remote panel, turn OFF loads using the
means provided in the vehicle (such as a main cir
cuit breaker). Electrical load circuits will be
turned ON after the generator has started, stabi
lized and warmed up.
2.
If you have not started the engine in more than
two weeks, press the Fuel Pump Primer switch
and hold it for about five seconds to prime the
fuel system. However, if the engine is warm, skip
Step 2.
3.
Hold the engine Starf/Stop switch in the START
position to crank the engine. Release the switch
when the engine starts.
Generac* Power Systems, Inc.
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