OPERATION AND PARTS MANUAL
MODEL GAC6HR/GAC6HRS
PORTABLE GENERATORS
(HONDA GX340RT2EDN2/GX340RT2EDE2
GASOLINE ENGINES)
Revision #1 (12/13/17)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PROPOSITION 65/START FIRES WARNINGS
Operation of this equipment may create
sparks that can start fires around dry
vegetation. A spark arrestor may be
required. The operator should contact
local fire agencies for laws or regulations
relating to fire prevention requirements.
PAGE 2 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
GAC6HR/GAC6HRS 60Hz
Portable Generators
Proposition 65/Start Fires Warnings ........................ 2
Table Of Contents .................................................... 3
Parts Ordering Procedures ...................................... 4
Nameplate/Safety Information ................................. 5
Safety Information .............................................. 6-11
Specifications (Generator) ..................................... 12
Specifications (Engine) .......................................... 13
Dimensions ............................................................ 14
Installation ........................................................ 16-17
General Information ............................................... 18
Components (Generator) .................................. 19-21
Inspection/Setup ............................................... 22-23
Operation .......................................................... 24-26
Shutdown ............................................................... 27
Preparation For Long Term Storage ...................... 28
Maintenance ..................................................... 29-32
Generator Wiring Diagram (GAC6HR) ................. 33
Generator Wiring Digram (GAC6HRS) ................. 34
Troubleshooting (Generator) .................................. 35
Troubleshooting (Engine) .................................. 36-37
Explanation of Code in Remarks Column.............. 38
Suggested Spare Parts ......................................... 39
TABLE OF CONTENTS
Component Drawings
Nameplate And Decals Assembly .................... 40-41
Generator Assembly ......................................... 42-43
Control Box Assembly (GAC6HR) .................... 44-45
Control Box Assembly (GAC6HRS) .................. 46-47
Pipe Frame Assembly ....................................... 48-49
Battery Assembly (GAC6HRS) ......................... 50-51
Muffler Assembly .............................................. 52-53
Wheel Kit Assembly .......................................... 54-55
Engine Service Parts ........................................ 56-57
Terms And Conditions Of Sale — Parts ................ 58
NOTICE
Specifications and part numbers are subject to change
without notice.
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 3
PARTS ORDERING PROCEDURES
www.multiquip.com
Ordering parts has never been easier!
If you have an MQ Account, to obtain a Username
parts@multiquip.
To obtain an MQ Account, contact your
Effective:
, 2006
Choose from three easy options:
January 1
st
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specifi cation Information
Goto www.multiquip.com and click on
Order Parts
to log in and save!
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Order via Phone:
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
Domestic (US) Dealers Call:
1-800-427-1244
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
and Password, E-mail us at:
com.
District Sales Manager for more information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
When ordering parts, please supply:
❒ Dealer Account Number
❒ Dealer Name and Address
❒ Shipping Address (if different than billing address)
❒ Return Fax Number
❒ Applicable Model Number
❒ Quantity, Part Number and Description of Each Part
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL
■ Priority One ✓ Truck
■ Ground
■ Next Day
■ Second/Third Day
PAGE 4 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
NAMEPLATE/SAFETY INFORMATION
NAMEPLATE AND SAFETY LABELS
Safety labels are attached to the generator as shown in
Figure 1. Keep these safety labels clean at all times. When
the safety labels become worn or damaged, contact your
nearest dealer or the Multiquip Parts Dept.
GAC-6HR
OFF
MAIN AC CIRCUIT BREAKER
DISJONCTEUR PRINCIPALE DE COURANT CA
120V 20A
120V 20A
NEUTRAL BONDED TO FRAME.
NEUTRE MIS A LA MASSE A
LA CARCASSE DU MOTEUR.
QUARTZQUARTZ
HOUR METER
COMPTEUR
D’ HEURE
TOTAL LOAD WITHIN 5kW
CHARGE TOTALE MAX. 5kW
120V 30A
120
120
V
V
120
120
MARCHE ON
MARCHE ON
AC VOLTMETER
VOLTOMETRE CA
ARRET
ARRET
OFF
OFF
120V
120V
IDLE
OPERATION
CONTROL
SWITCH
CONTROL
INTERRUPTEUR
DE RALENTI
DU OPERARION
240/120V
240/120V
FULL POWER
SWITCH
120/240V 20A
INTERRUPTEUR
PLEINE
PUISSANCE
GR
PRISE DE
TERRE
NOTICE
For safety label part numbers, reference the parts
section of this manual.
MODEL
SERIAL NO.
Figure 1. Nameplate And Safety Decals
CAUTION
Do not use in rain or snow.
ATTENTION
Ne pas utiliser en cas de
pluie ou neige.
READ OWNER’S SERVICE MANUAL BEFORE OPERATING OR
SERVICING THIS MACHINE.
ALWAYS KEEP UNAUTHORIZED INEXPERICENCED
UNTRAINED PEOPLE AWAY FROM THIS MACHINE.
MAKE SURE ALL SAFETY DEVICES ARE OPERATIONAL
BEFORE THIS MACHINE IS STARTED. MAKE SURE ENGINE
IS TURNED OFF AND SPARK PLUG WIRE DISCONNECTED
BEFORE SERVICING THE MACHINE OR COMING IN
CONTACT WITH ANY MOVING PART. IF EQUIPMENT IS
POWERED BY AN ELECTRIC MOTOR DISCONNECT
ELECTRICAL PLUG.
NEVER LEAVE MACHINE UNATTENDED WHEN OPERATING
ALWAYS STOP ENGINE AND ALLOW ENGINE TO COOL
BEFORE ADDING FUEL OR OIL.
II est impératif de lire le manuel d’utilisation
avant d’utiliser ou de réparer cet équipement.
II est impératif degarder tout personnel non
authorisé ou non qualifié à distance de cet equipement.
Assurez vous que tout equipement de sécurité est
fonctionnel avant d’engager l’equipement. Assurez vous
que le moteur est éteint et que le fil de la bougie
est d’econnecté avant de réparer la machine ou vant
tout contact avec toute pièce en mouvement.
Si l’equipement est alimenté par un moteur électrique
débranchez l’appareil.
Ne laissez jamis l’appareil sans supervision quand
il est en marche, II est impératif d’arrêter le
motour et de la laisser refroidir avant d’ajouter
de l’huile ou du carburant.
CAUTION
A55200070A
CAUTION
A5520080
A3520000A
WARNING
Operation of this equipment may create
sparks that can start fires around dry
vegetation.
A spark arrestor may be required.
The operator should contact local fire
agencies for laws or regulation relating
to fire prevention requirements.
Des étincelles pouvant enflammer la
végétation séche environnante peuvent être
produites pendant le fonctionnement de cet
équipement.
Un pare–étincelles peut être requis.
L’opérateur doit contacter les agences
anti–incendie locales pour s’ informer
des lois ou feglementations concernant les
exigences de prévention–incendie
Do not touch output terminals or internal
wiring while unit is operating.
Turn off power before servicing.
Ne touchez ni les terminaux externes ou le
cablage electrique interne lorsque que
l’équipement est en operation.
Eteindre avant de réparer.
Only qualified personnel should install, use,
Electrical
or service this equipment.
shock hazard
Possibilité
Seul un personnel qualifié devrait avoir
de choc
electrique
l’authorisation d’installer d’utilisier ou
A63210100A
de réparer cet équipement.
A90400020
Using a generator indoors CAN KILL YOU IN MINUTES.
Utilser un générateur à l’ intérieur VOUS TUERA EN QUELQÙES MINUTES.
Exhaust contains carbon monoxide, a poison gas you cannot see or smell.
Les gaz d’ échappement contiennent du monoxyde de carbon, un gaz toxique
invisible et inodore.
NEVER use in enclosed or partially
enclosed areas.
Utilisation INTERDITE dans un
espace clos ou partiellement clos.
THE POSSIBILITY EXISTS OF ELECTROCUTION IF
GENERATOR/WELDER IS NOT PROPERLY GROUNDED.
ALWAYS CONNECT EARTH GROUND (GROUND ROD) TO
GENERATOR GROUND POINT.
IL Y AURAIT UN RISQUE D’ÉLECTROCUTION À MOINS
QUE LA GÉNÉRATRICE/SOUDEUSE NE SOIT PROPREMENT
MISE A LA TERRE. S’ASSURER DE RELIER A LA MASSE
(BARRE DE MASSE) LE POINT DE MISE A LA TERRE DE
L’APPAREIL.
GROUND ROD FOR
EARTH GROUND
BARRE DE MASSE
CONNECT TO BUILDING
GROUND IF REQUIRED
ARELIER À LA MASSE
D’OUVRAGE EVENTUELLEMENT
8 FT. MINIMUM
8 PIEDS MINIMUM
REFERENCE NEC 250-52 (C)
RÉFERÉNCE NEC 250-52 (C)
WARNING/ATTENTION
Dangerous
Gas/Gas
dangereux
A63210090A
DANGER
NEUTRAL BONDED TO FRAME
120V
120
V
GAC-2.2H
15A
POWERED by
Honda Engines
211052
GR PRISE DE
TERRE
NEUTRAL BONDED TO FRAME
120V
NEUTRE MIS A LA MASSE A
120
V
GAC-2.2H
LA CARCASSE DU MOTEUR
NEUTRE MIS A LA MASSE A
15A
LA CARCASSE DU MOTEUR
POWERED by
Honda Engines
AC CIRCUIT BREAKER
211052
INTERRUPTEUR DE
AC CIRCUIT BREAKER
OFF
COURANT PRINCIPAL
INTERRUPTEUR DE
OFF
GR PRISE DE
COURANT PRINCIPAL
TERRE
GROUND TERMINAL
PRISE DE TERRE
GROUND CABLE
#8 MINIMUM
CÂBLE DE MASSE
#8 MINIMUM
FOR FURTHER GROUNDING
INSTRUCTIONS READ MANUAL
POUR PLUS DE DÉTAILS
CONCERNANT LA MISE Á LA
TERRE, LIRE LE MANUEL
CAUTION/ATTENTION
HOT PARTS can burn skin.
DO NOT touch until the machine
has sufficiently cooled.
Danger de brûlure, pièces chaudes.
Ne touchez pas avant que l’appareil
ne soit suffisamment refroidi.
Only operate machine in well
ventilated areas.
Do not inhale exhaust gases.
N’utilizez l’equipment que dans
des endroits bien aérés.
Ne respirez paz les gas d’échappement.
Only qualified personnel should install, use,
or service this equipment.
Seul un personnel qualifié devrait avoir
l’authorisation d’installer d’utilisier ou
de réparer cet équipement.
NEUTRAL BONDED TO FRAME
120V
120
V
GAC-2.2H
NEUTRE MIS A LA MASSE A
15A
LA CARCASSE DU MOTEUR
POWERED by
Honda Engines
211052
AC CIRCUIT BREAKER
INTERRUPTEUR DE
OFF
GR PRISE DE
COURANT PRINCIPAL
TERRE
ONLY use outdoors and away from
open windows, doors, and vents.
Utilisation UNIQUEMENT à l’ extér leur
portes et trous d’ aération
A91110020
A65200040A
A90400010
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 5
SAFETY INFORMATION
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
SAFETY SYMBOLS
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
or NOTICE.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
PAGE 6 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
GENERAL SAFETY
CAUTION
ALWAYS know the location of the nearest phone or keep
Also, know the phone numbers
fi re department.
This information will be invaluable in the case of an
emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
lubricate components or attempt service on a
Fix damage to machine and replace any broken parts
store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the infl uence of
drugs or alcohol.
SAFETY INFORMATION
a phone on the job site.
of the nearest ambulance, doctor and
emergency.
GENERATOR SAFETY
DANGER
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re could result causing severe
bodily harm or even death.
WARNING
NEVER disconnect any
ALWAYS check the equipment for loosened threads or
bolts before starting.
DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE
This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation will void all warranties.
NEVER use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
devices will void all warranties.
CAUTION
NEVER
running machine.
NOTICE
ALWAYS ensure generator is on level ground before use.
ALWAYS keep the machine in proper running condition.
immediately.
ALWAYS
out of the reach of children and unauthorized personnel
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 7
ENGINE SAFETY
DANGER
to prevent accidental discharge of sparks or fl ames
from the engine exhaust. Spark arresters are qualifi ed
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
start the engine near spilled fuel or combustible
fl uids. Diesel fuel is extremely fl ammable and its vapors
refuel in a well-ventilated area, away from
use extreme caution when working with
fi ll the fuel tank while the engine is running
overfi ll tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
Store fuel in appropriate containers, in well-ventilated
PLASTIC
QUARTZ
IDLE
CONTROL
MANUALRESET
P
O
W
E
R
F
A
U
L
T
120
V
120
AC VOLTMETER
120V
30A
120/240V
30A
120V
20A
AC CIRCUITBREAKER
GFCI PROTECTED
120V
240/120V
FULLPOWER
SWITCH
20A
120V
20A
120V
0N
OFF
OPERATION
SWITCH
ON
OFF
0N
OFF
OPERATION
SWITCH
ON
OFF
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
The engine of this equipment
requires an adequate free
fl ow of cooling air. NEVER
operate this equipment in
any enclosed or narrow area
where free fl ow of the air is
restricted. If the air fl ow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
WARNING
NEVER operate the engine with heat shields or
guards removed.
DO NOT remove the engine oil drain plug while
the engine is hot. Hot oil will gush out of the engine
crankcase and severely scald any persons in the general
area of the generator.
SAFETY INFORMATION
local Health and Safety Administrator.
FUEL SAFETY
DANGER
DO NOT
fi re due to static electricity.
V
0
2
1
R
E
T
E
M
T
L
O
V
C
A
V
0
2
/1
0
R
4
E
2
W
O
15A
P
L
L
N
H
U
U
C
F
R
OFF
IT
IT
W
U
S
C
IR
C
R
C
E
P
A
K
O
A
T
E
S
R
B
N
IO
T
A
R
E
P
H
O
C
IT
E
L
W
S
ID
L
O
V
0
R
4
T
2
N
O
C
IL
O
M
R
A
L
A
V
0
2
1
I
C
F
G
D
N
G
TRUCK-BED
FUEL
HONDA
FUEL
LINER
CAUTION
NEVER touch the hot exhaust manifold,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
NEVER run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
frequently to prevent engine malfunction.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
DO NOT
can cause an explosion if ignited.
ALWAYS
sparks and open fl ames.
ALWAYS
fl ammable liquids.
if operating in speed ranges above the
DO NOT
maximum allowable.
or hot.
State Health Safety Codes and Public Resources
DO NOT
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed
the ignition system.
areas and away from sparks and fl ames.
PAGE 8 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
NEVER use fuel as a cleaning agent.
DO NOT smoke around or near the
ELECTRICAL SAFETY
Power Cord/Cable Safety
Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
make certain that proper power or extension
cord has been selected for the job. See Cable Selection
make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
Severe injury or death by
can result from operating an ungrounded
drop the battery. There is a possibility that the
charge battery if frozen. Battery can explode.
When frozen, warm the battery to at least 61°F (16°C).
keep the battery charged. If the battery is not
recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
DANGER
SAFETY INFORMATION
generator.
NOTICE
ALWAYS
Chart in this manual.
Turn generator and all circuit breakers OFF before
performing maintenance on the generator or making
contact with output receptacles.
NEVER insert any objects into the
output receptacles during operation.
This is extremely dangerous. The
possibility exists of electrical shock,
electrocution or death.
Backfeed to a utility system can cause
electrocution and/or property damage.
NEVER connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.
DANGER
NEVER let power cords or cables lay in water.
Grounding Safety
DANGER
ALWAYS
before operating generator.
electrocution
generator.
NEVER use gas piping as an electrical ground.
BATTERY SAFETY (ELECTRIC START ONLY)
DANGER
DO NOT
battery will explode.
DO NOT expose the battery to open fl ames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
fl ame or spark, an explosion could occur.
DO NOT
NEVER stand in water while AC power from the
generator is being transferred to a load.
NEVER use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
NEVER grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 9
WARNING
ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up the battery.
ALWAYS
charged, combustible gas will build up.
ALWAYS
of combustible gasses.
If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
TRANSPORTING SAFETY
ENVIRONMENTAL SAFETY/DECOMMISSIONING
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
pour waste or oil directly onto the ground, down
When the life cycle of this equipment is over, remove
battery (if equipped) and bring to appropriate facility for
lead reclamation. Use safety precautions when handling
When the life cycle of this equipment is over, it is
recommended that the unit frame and all other metal
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
immediately with plenty of water.
If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
SAFETY INFORMATION
NOTICE
CAUTION
ALWAYS disconnect the NEGATIVE battery terminal
before performing service on the generator.
ALWAYS keep battery cables in good working condition.
Repair or replace all worn cables.
CAUTION
NEVER allow any person or animal to stand underneath
the equipment while lifting.
NOTICE
Before lifting, make sure that the equipment parts (lifting
bail if equipped) are not damaged and screws are not
loose or missing.
Always make sure crane or lifi tng device has been
properly secured to the lifting bail (hook) of the
equipment.
ALWAYS shutdown engine before transporting.
sure to follow rules below.
DO NOT
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
batteries that contain sulfuric acid.
parts be sent to a recycling center.
NEVER lift the equipment while the engine is running.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
Use adequate lifting cable (wire or rope) of suffi cient
strength.
Use one point suspension hook and lift straight
upwards.
DO NOT lift machine to unnecessary heights.
ALWAYS tie down equipment during transport by
securing the equipment with rope.
PAGE 10 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
promotes energy cost savings.
EMISSIONS INFORMATION
NOTICE
The gasoline engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
contained in gasoline exhaust emissions.
This engine has been certifi ed to meet US EPA Evaporative
emissions requirements in the installed confi guration.
Attempting to modify or make adjustments to the engine
emmission system by unauthorized personnel without
proper training could damage the equipment or create an
unsafe condition.
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fi nes or other penalties.
Emission Control Label
The emission control label is an integral part of the emission
system and is strictly controlled by regulation(s).
The label must remain with the engine for its entire life.
If a replacement emission label is needed, please contact
your authorized Honda Engine Distributor.
SAFETY INFORMATION
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 11
SPECIFICATIONS (GENERATOR)
Table 1. Specifications (Generator)
Model GAC6HR GAC6HRS
Type Brushless Revolving Field Type
AC Generator
60 Hz AC Power
Source
Dimensions
(L x W x H)
Dry Net Weight
Battery (GAC6HRS Only)
Excitation Solid State, Statically Excited System
Speed 3,600 RPM
Cooling System Self-Ventilation
Fuel Capacity 5 gallons (19 liters)
Continuous Power Output 5.0 kW
Max Power Output 6.0 kW
Rated Voltage 120/240V
Current Max/Continuous (120V) 50.0/41.6 amps
Current Max/Continuous (240V) 25.0/20.8 amps
Phase Single Phase (4 wire)
Frequency 60 Hz
Power Factor 1
30.3 x 31.3 X 29.5 in.
(770 X 795 X 750 mm)
220 lbs. (100 kg.) 238 lbs. (108 kg.)
Battery specifications for GAC-6HRS: 12 Volts, 26
Amp hours, 260 Amps cold cranking ability:
7-1/2" (L) X 5" (W) X 7-1/4" (H)
30.3 x 31.3 X 29.5 in.
(770 X 795 X 750 mm)
NOTICE
In keeping with Multiquip's policy of constantly
improving its products, the specifications quoted herein
are subject to change without prior notice.
PAGE 12 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
SPECIFICATIONS (ENGINE)
Table 2. Specifications (Engine)
Model HONDA GX340RT2EDN2 HONDA GX340RT2EDE2
Engine
Dimensions
L x W x H)
Dry Net Weight
Type
Bore X Stroke
Displacement 23.70 cu-in (389 cm
Air-cooled 4 stroke, Single Cylinder, OHV, Horizontal Shaft
Gasoline Engine
3.46 in. X 2.52 in.
(88 mm X 64 mm.)
3
)
Max Output 11.0 H.P./3600 R.P.M.
Fuel Unleaded Automobile Gasoline
Lube Oil Capacity 1.16 quarts (1.1 liters)
Oil Alert System Ye s
Speed Control Method Centrifugal Fly-weight Type
Starting Method Recoil Start Recoil/Electric Start
15.0 X 17.7 X 17.4 in.
(380 X 450 X 443 mm)
15.0 X 17.7 X 17.4 in.
(380 X 450 X 443 mm)
68.4 lbs. (31 kg.) 68.4 lbs. (31 kg.)
Effects of Altitude and Heat
The maximum output of the engines listed above are applicable to supplying electrical power for continuous service at
ambient conditions in accordance with SAE Test cord J607. The above ambient conditions are at standard sea level, with
a barometric reading of 29.92 inches and a temperature of 60° F (15.5° C).
Generally, the engine's output power will decrease 3-1/2% for each 1000 feet 305 meters) of altitude above sea level, and
1% for each 10° F (-12.2° C) above the standard temperature of 60° F (15.5° C).
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 13
DIMENSIONS
C
GAC-6HR
OFF
MAIN AC CIRCUIT BREAKER
DISJONCTEUR PRINCIPALE DE COURANT CA
120V 20A
120V 20A
NEUTRAL BONDED TO FRAME.
NEUTRE MIS A LA MASSE A
LA CARCASSE DU MOTEUR.
QUARTZQUARTZ
HOUR METER
COMPTEUR
D’ HEURE
TOTAL LOAD WITHIN 5kW
CHARGE TOTALE MAX. 5kW
120V 30A
120
120
V
V
120
120
MARCHE ON
MARCHE ON
AC VOLTMETER
VOLTOMETRE CA
ARRET
ARRET
OFF
OFF
120V
120V
IDLE
OPERATION
CONTROL
SWITCH
CONTROL
INTERRUPTEUR
DE RALENTI
DU OPERARION
240/120V
240/120V
FULL POWER
SWITCH
120/240V 20A
INTERRUPTEUR
PLEINE
PUISSANCE
GR
PRISE DE
TERRE
BA
REFERENCE
LETTER
A HEIGHT (LIFTING BALE) 33.9 (860)
B HEIGHT (FRAME) 29.5 (750)
C LENGTH 30.3 (770)
D WIDTH 31.3 (795)
PAGE 14 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
D
Figure 2. Dimensions
Table 3. Generator Dimensions
DESCRIPTION DIMENSIONS: IN. (MM)
NOTE
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 15
INSTALLATION
CONNECTING THE GROUND
Consult with local Electrical and Safety Codes for proper
connection based on condition of use.
EXAMPLE of how to ground the unit if the condition
of use requires such a device:
The ground terminal on the generator should always be
used to connect the generator to a suitable ground when
required.
GAC-6HR
GAC-6HR
OFF
MAIN AC CIRCUIT BREAKER
DISJONCTEUR PRINCIPALE DE COURANT CA
120V 20A
120V 20A
NEUTRAL BONDED TO FRAME.
NEUTRE MIS A LA MASSE A
LA CARCASSE DU MOTEUR.
HOUR METER
COMPTEUR
D’ HEURE
TOT
AL LOAD WITHIN 5kW
CHARGE TOTALE MAX. 5kW
120V 30A
MARCHE ON
AC VOLTMETER
VOLTOMETRE CA
MARCHE ON
120V
120V
ARRET
OFF
ARRET
IDLE
CONTROL
OFF
OPERATION
CONTROL
SWITCH
DE RALENTI
240/120V
240/120V
INTERRUPTEUR
DU OPERARION
FULL POWER
120/240V 20A
SWITCH
INTERRUPTEUR
PLEINE
PUISSANCE
GR
PRISE DE
TERRE
The ground cable should be #8 size wire (aluminum)
minimum. If copper wire is used, #10 size wire minimum
should be used.
Connect one end of the ground cable terminal to the
generator ground point (Figure 3). Connect the other end
of the ground cable to a suitable earth ground (ground rod).
GROUND CABLE
(#8 MINIMUM)
GENERATOR
GROUND TERMINAL
IF THE GENERATOR IS PROVIDING
ELECTRIC POWER TO A BUILDING
VIA A TRANSFER SWITCH IT MUST
BE CONNECTED TO A GROUND ROD
CONNECT TO
BUILDING GROUND
IF REQUIRED
8 FT.
MINIMUM
REFERENCE
NEC 250
Figure 3. Generator Grounding
PAGE 16 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
INSTALLATION
OUTDOOR INSTALLATION
If possible install the generator in a area that is free of
debris, bystanders, and overhead obstructions. Make sure
the generator is on secure level ground so that it cannot
slide or shift around.
The installation site must be relatively free from moisture
and dust. All electrical equipment should be protected
from excessive moisture. Failure to do so will result in
deterioration of the insulation and will result in short circuits
and grounding.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
WARNING
Pay close attention to ventilation when
operating the generator inside tunnels
and caves. The engine exhaust contains
noxious elements. Engine exhaust must
be routed to a ventilated area.
GENERATOR GROUNDING
NOTICE
The Occupational Safety and Health Administration
(OSHA) and the National Electrical Code (NEC)
recommend that if the generator is providing electrical
power to a structure home, office shop, trailer or similar)
it must be connected to a grounding electrode system,
such as a driven ground rod (Figure 3).
If applicable ,to guard against electrical shock and possible
damage to the generator, it is important to provide a good
EARTH ground (Figure 3).
NOTICE
ALWAYS check with State, Province, District and
Municipalities for electrical grounding requirements
before using generator.
Article 250 (Grounding) of the NEC handbook provides
guidelines for proper grounding and specifies that the cable
ground shall be connected to the grounding system of the
building as close to the point of cable entry as practical.
INDOOR INSTALLATION
Exhaust gases from gas engines are extremely poisonous.
Whenever an engine is installed indoors the exhaust
fumes must be vented to the outside. The engine should
be installed at least two feet from any outside wall. Using
an exhaust pipe which is too long or too small can cause
excessive back pressure which will cause the engine to
heat excessively and possibly burn the valves.
PLACEMENT
The generator should always be placed on a flat level
surface when it is running. DO NOT place the generator
on slopes, the possibility exists that the generator could
slide.
DANGER
An electric shock is apt to happen when
vibrators are used. Pay close attention to
handling when operating vibrators and
always use rubber boots and gloves to
insulate the body from a short circuit.
NEC article 250 specifices the following grounding
requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
a. Copper10 AWG (5.3 mm
2
) or larger.
b. Aluminum8 AWG (8.4 mm2) or larger.
2. When grounding of the generator (Figure 3) is required,
connect one end of the ground cable to the ground lug
on the generator. Connect the other end of the ground
cable to the ground rod earth ground).
3. NEC article 250 specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
NOTICE
When connecting the generator to any building's
electrical system ALWAYS consult with a licensed
electrician.
GAC6HR/HRS 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (12/13/17) — PAGE 17
FAMILIARIZATION
Generator
The Multiquip GAC6HR/GAC6HRS generators are
designed as a portable dual purpose power source
for 60 Hz (single phase) lighting facilities, power tools,
submersible pumps and other industrial and construction
machinery.
The generator is mounted on rubber vibration isolators
that have a steel base backplate which is attached to the
protective steel pipe carrying frame.
The protective carrying frame is made of steel tubing
and fully wraps around the generator to protect against
damage. Reference Figure 4, Figure 5 and Figure 8 for the
basic controls and indicators for the GAC6HR/GCA6HRS
generators.
These portable generators are supplied with an electrical
control box (panel). To reduce vibration caused by the
engine, thecontrol box is also placed on rubber isolators.
GENERAL INFORMATION
DANGER
Before connecting this generator to any building’s
electrical system, a licensed electrician must install an
isolation (transfer) switch.
Serious injury or death may result without this transfer
switch.
Control Panel
The control panel is provided with the following:
20 Amp, 2-Pole Main Circuit Breaker
Two120 VAC GFCI Receptacles (5-20R)
Hour Meter
120V Twist-Lock Output Receptacle (L5-30R)
120/240V Twist-Lock Output Receptacle (L14-30R)
Two 20 Amp, 1-Pole Circuit Breakers (CB1/CB2)
Two 30 Amp, 1-Pole Circuit Breakers (CB3/CB4)
AC Voltmeter
Idle Control Switch
Full Power Switch
Operation Switch
Start Switch (GA6HRS only)
Ground Terminal
PAGE 18 — GAC6HR/HRS 60 HZ GENERATOR• OPERATION AND PARTS MANUAL — REV. #1 (12/13/17)
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