Husky HU3650 User manual

OPERATOR’S MANUAL
Manual del operador
ELECTRIC GENERATOR
Generador electrico
HU3650
DANGER: You WILL be KILLED or SERIOUSLY HURT if you do not follow the instructions in this operator’s
manual.
PELIGRO: El incumplimiento de las instrucciones en este manual del operador puede CAUSARLE LA MUERTE
O LESIONARLE GRAVEMENTE.
To reduce the risk of injury, user must read and understand operator’s manual before using this
generator.
Para reducir el riesgo de lesiones, el usuario debe leer y comprender el manual del operador antes de
usar este generador.
SAVE THIS MANUAL FOR FUTURE REFERENCE
GUARDE ESTE MANUAL PARA FUTURAS CONSULTAS

2
TABLE OF CONTENTS/ INDICE
ENGLISH
Safety and operation rules ...............................3
Sparkarrestingmuffler..................................4
Operatingvoltage......................................4
Determining total wattage ................................4
Electrical.............................................5
Generator capacity.................................5
Power management ................................5
Extension cord cable size............................6
Electric motor loads ................................6
Major generator features.................................7
Control panel..........................................7
120 V, 20 ampere duplex receptacle . . . . . . . . . . . . . . . . . . . 7
120/240 V, 20 ampere twistlock receptacle . . . . . . . . . . . . . . 7
Circuitbreakers ...................................7
Cord retainer......................................7
Portability kit installation .................................8
Tools required .....................................8
Wheel installation ..................................8
Footinstallation ...................................8
Locking handle ....................................8
Installation ............................................9
Beforeoperation.......................................9
Groundingthegenerator ............................9
Lubrication......................................10
Fuel............................................10
Starting the unit.......................................10
Pre-startpreparation ..............................10
Starting the engine ................................10
Applyingload....................................11
Shutting the generator off. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Break-in procedure................................11
Maintenance.........................................11
Generator: brushes................................11
Inspecting the brushes.............................11
Heatshield......................................11
Engine: carburetor icing ............................11
Quick starting tips for units
that have been sitting a while ......................11
Serviceandstorage ...................................12
Infrequent service.................................12
Longtermstorage ................................12
Limitedwarranty......................................12
Service information ....................................13
Limited 3-year engine warranty...........................13
Service Information ....................................14
ESPAÑOL
Reglas de seguridad y de funcionamiento ..................15
Apagachispas........................................16
Como determinar el vataje total ..........................16
Aspectos eléctricos....................................17
Capacidad del generador...........................17
Administración de la potencia . . . . . . . . . . . . . . . . . . . . . . . 17
Calibre del cordón de extensión. . . . . . . . . . . . . . . . . . . . . . 18
Cargas de motores eléctricos . . . . . . . . . . . . . . . . . . . . . . . 18
Caracteristicas principales del generador...................19
Paneldecontrol ......................................19
Receptáculo dúplex de 120 voltios, 20 amperios . . . . . . . . 19
Receptáculo de cierre giratorio de 120/240 voltios,
20amperios ...................................19
Interruptor.......................................19
Reténparaelcordón..............................19
Instalacion del juego de transport.........................20
Instalacion ...........................................21
Antes de la operacion ..................................21
Puesta a tierra del generador ........................21
Lubricacion......................................22
Combustible .....................................22
Arranquedelunidad...................................22
Preparacion antes de arrancar.......................22
Arranque del motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Como aplicar una carga ............................23
Apagadodelgenerador............................23
Procedimiento de arranque inicial . . . . . . . . . . . . . . . . . . . . 23
Mantenimiento........................................23
Generador:escobillas .............................23
Para revisar las escobillas ..........................23
Escudodecalor..................................23
Motor: congelamiento del carburador . . . . . . . . . . . . . . . . . 23
Consejos para un encendido rápido en unidades que
han estado inhabilitadas durante un tiempo . . . . . . . . . . 23
Servicio y almacenamiento ..............................24
servicio poco frecuente.................................24
Almacenamiento a largo plazo .......................24
Garantia limitada ......................................24
Garantia.............................................25
Motor con garantía limitada de 3 años .....................25
ENGLISH/ESPAÑOL
Parts drawing / diagrama de piezas . . . . . . . . . . . . . . . . . . . . . . . 26
Parts list / lista de piezas............................. 27-28
Notes/ nota..........................................40

3
SAFETY INFORMATION
SAFETY AND OPERATION RULES
Read carefully and understand operator manual prior
to operation of this product. Read and understand
engine manual prior to operation. Follow all warnings
and instructions.
Know your equipment. Consider the applications,
limitations, and the potential hazards specific to your
unit.
Equipment must be placed on a firm, supporting sur-
face.
Load must be kept within rating stated on genera-
tor nameplate. Overloading will damage the unit or
shorten its life.
Engine must not be run at excessive speeds. Oper-
ating an engine at excessive speeds increases the
hazard of personal injury.
Do not tamper with parts which may increase or
decrease the governed speed.
To prevent accidental starting, always remove the
spark plug or cable from the spark plug before main-
taining the generator or engine.
Units with broken or missing parts, or without pro-
tective housing or covers, should never be operated.
Contact your service center for replacement parts.
Units should not be operated or stored in wet or
damp conditions or on highly conductive locations
such as metal decking and steel work.
Keep the generator clean and free of oil, mud and
other foreign matter.
Extension cords, power cords, and all electrical
equipment must be in good condition. Never oper-
ate electrical equipment with damaged or defective
cords.
Store the generator in a well-ventilated area with the
fuel tank empty. Fuel should not be stored near the
generator.
Your generator should never be operated under these
conditions:
a. Uncontrolled change in engine speed. (NOTE:
The optional idle control feature will reduce the
engine speed in a “No Load” condition.)
b. Electrical output loss.
c. Overheating in connected equipment.
d. Sparking.
e. Damaged receptacles.
f. Engine misfire.
g. Excessive vibration.
h. Flame or smoke.
i. Enclosed compartment.
j. Rain or inclement weather. Do not let the unit get wet when
operating.
Check the fuel system periodically for leaks or signs of dete-
rioration such as chafed or spongy hose, loose or missing
clamps, or damaged tank or cap. All defects should be cor-
rected before operation.
The generator should be operated, serviced, and refueled
only under the following conditions:
a. Start and run the generator outdoors. Do not run the gen-
erator in an enclosed area, even if doors or windows are
open; avoid areas where vapors may be trapped, such as
pits, garages, cellars, excavations and boat bilges.
b. Good ventilation for cooling. Air flow and temperatures are
important for air cooled units. Temperatures should not
exceed 104°F ambient (40°C).
c. Refuel the generator in a well lighted area. Avoid fuel spills
and never refuel while the generator is running. Allow
engine to cool for two minutes prior to refueling.
d. Do not refuel near open flames, pilot lights, or sparking
electrical equipment such as power tools, welders, and
grinders.
e. The muffler and air cleaner must be installed and in good
condition at all times as they function as flame arresters if
backfiring occurs.
f. Do not smoke near the generator.
DANGER:
DANGER indicates a potentially
hazardous situation which, if not
avoided,WILLresultin death or serious
injury.
WARNING:
WARNING indicates a potentially
hazardous situation which, if not
avoided,couldresultindeathorserious
injury.
CAUTION:
CAUTION indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate personal injury, or property
damage.
WARNING:
Failure to follow these instructions and warnings can result in
death, personal injury, or property damage.
DANGER:
CARBONMONOXIDEHAZARD:Theengineexhaust
contains carbon monoxide, a poisonous, odorless,
invisible gas which, if breathed, can cause death or
serious personal injury. If you start to feel sick, dizzy
or weak while using the generator, shut it off and get to fresh
air right away; you may have carbon monoxide poisoning.

4
OPERATING VOLTAGE
Ensure that generator is properly grounded. (See
“Grounding the generator” section in this manual.)
Do not wear loose clothing, jewelry, or anything that
may be caught in the starter or other rotating parts.
Unit must reach operating speed before electrical
loads are connected. Disconnect loads before turn-
ing off engine.
To prevent surging that may possibly damage equip-
ment, do not allow engine to run out of fuel when
electrical loads are applied.
When powering solid state equipment, a Power Line
Conditioner should be used to avoid possible dam-
age to equipment.
Do not stick anything through ventilating slots, even
when the generator is not operating. This can dam-
age the generator or cause personal injury.
Before transporting the generator in a vehicle, drain
all fuel to prevent leakage that may occur.
Use proper lifting techniques when transporting the
generator from site to site. Improper lifting tech-
niques may result in personal injury.
To avoid burns, do not touch engine muffler or other
engine or generator surfaces which became hot dur-
ing operation.
Do not alter or modify the heat shield.
YOUR PRODUCT MAY NOT BE EQUIPPED WITH A
SPARK ARRESTING MUFFLER. If the product will be used
around flammable materials, such as agricultural crops, forests,
brush, grass, or other similar items, then an approved spark
arrester should be installed and is legally required in the State
of California. The California statutes requiring a spark arrester
are Sections 13005(b), 4442 and 4443. Spark Arresters are
also required on some U.S. Forest Service land and may also
be legally required under other statutes and ordinances. An
approved spark arrester is available from our product dealers, or
may be ordered from Techtronic Industries North America, Inc.,
P.O. Box 35, Highway 8, Pickens, SC 29671, 1-866-340-3912.
SPARK ARRESTING MUFFLER
A power line conditioner should be used when any of the
following solid state items:
Garage door openers
Kitchen appliances with digital displays
Televisions
Stereos
Personal computers
Quartz clocks
Copy machines
Telephone equipment
DETERMINING TOTAL WATTAGE
In order to prevent overloading and possible damage to
your generator it is necessary to know the total wattage of the
connected load. To determine which tools and/or appliances
your generator will run follow these steps:
Determine if you want to run one item or multiple items simul-
taneously.
Check wattage requirements for the items you will be running
by referring to the load’s nameplate or by calculating it (mul-
tiply amps x volts = watts).
Total the watts for each item. If the nameplate only gives volts
and amps, multiply volts x amps = watts.
1 KW = 1,000 watts
Motorized appliances or tools require more than their rated
wattage for start up.
NOTE: Allow 2-1/2 to 4 times the listed wattage for start-
ing equipment powered by electric motors.
The generator’s rated watts should match or exceed the total
number of watts required for the equipment you want to run.
Always connect the heaviest load to the generator first, then
add other items one at a time.
CAUTION:
Operating voltage and frequency requirement of all electronic
equipment should be checked prior to plugging them into this
generator. Damage mayresultif the equipmentisnotdesigned
to operate within a +/- 10% voltage variation, and +/- 3 hz
frequency variation from the generator name plate ratings. To
avoid damage, always have an additional load plugged into
the generator if solid state equipment (such as a television
set) is used. A power line conditioner is recommended for
some solid state applications.

5
GENERATOR CAPACITY
Make sure the generator can supply enough continuous
(running) and surge (starting) watts for the items you will
power at the same time. Follow these simple steps.
1. Selecttheitemsyouwillpoweratthesametime.
2. Totalthe continuous (running) wattsoftheseitems.Thisis
the amount of power the generator must produce to keep the
items running. See the wattage reference chart at right.
3. Estimate how many surge (starting) watts you will need.
Surge wattage is the short burst of power needed to start
electric motor-driven tools or appliances such as a circular
saw or refrigerator. Because not all motors start at the same
time, total surge watts can be estimated by adding only the
item(s) with the highest additional surge watts to the total
rated watts from step 2.
Example:
Tool or Appliance Continuous
(Running) Watts
Surge
(Starting) Watts
Window AC,
10,000 BTU 1200 1800
Refrigerator 700 2200
1/3 HP Well Pump 1000 2000
27 in. Television 500 0
Light (75 Watts) 75 0
3475 Total
Running Watts
2200 Highest
Surge Watts
Total Continuous (Running) Watts 3475
Plus Highest Additional Surge Watts + 2200
Equals Total Generator Output Required 5675
POWER MANAGEMENT
To prolong the life of the generator and attached devices,
it is important to take care when adding electrical loads to
the generator. There should be nothing connected to the
generator outlets before starting its engine. The correct
and safe way to manage generator power is to sequentially
add loads as follows:
1. With nothing connected to the generator, start the engine as
described later in this manual.
2. Plug in and turn on the first load, preferably the largest load
you have.
3. Permit the generator output to stabilize (engine runs smoothly
and attached device operates properly).
4. Plug in and turn on the next load.
5. Again, permit the generator to stabilize.
6. Repeat steps 4 and 5 for each additional load.
Never add more loads than the generator capacity. Take
special care to consider surge loads in generator capacity
as previously described.
Tool or Appliance
Typical
Continuous*
(Running)
Watts
Typical
Surge*
(Starting)
Watts
Essentials
LightBulb−75Watt 75 75
Refrigerator/Freezer 700 2200
SumpPump−1/2HP 1050 2200
WaterWellPump−1/3HP 1000 1500
Electric Water Heater 4000 0
Heating/Cooling
FurnaceFan−1/2HP 800 2350
WindowAC−10,000BTU 1200 1800
Space Heater 1800 0
Kitchen
MicrowaveOven−1000Watt 1000 0
Coffee Maker 1000 0
ElectricStove−SingleElement 2100 0
Toaster Oven 1200 0
Family Room
VCR 100 0
CD/DVD Player 100 0
Stereo Receiver 450 0
ColorTelevision−27in. 500 0
Other
Security System 500 0
Curling Iron 1500 0
GarageDoorOpener−1/2HP 875 2350
HairDryer−1/2HP 1250 0
DIY/Job Site
Quartz Halogen Work Light 1000 0
AirlessSprayer−1/3HP 600 1200
Reciprocating Saw 960 0
ElectricDrill−1/2HP 600 900
CircularSaw−7-1/4in. 1400 2300
MiterSaw−10in. 1800 1800
Planer/Jointer−6in. 1800 1800
TableSaw/RadialArmSaw−
10 in.
2000 2000
AirCompressor−1HP 1600 4500
*Wattages listed are approximate. Check tool or appliance for actual watt-
age.
ELECTRICAL
CAUTION:
Do not overload the generator’s capacity. Exceeding the
generator’s wattage/amperage capacity can damage the
generator and/or electrical devices connected to it.

6
EXTENSION CORD CABLE SIZE
Refer to the table below to ensure the cable size of the extension cords you use are capable of carrying the required
load. Inadequate size cables can cause a voltage drop, which can damage the appliance and overheat the cord.
Current in
Amperes
Load in Watts Maximum Allowable Cord Length
At 120V At 240V #8 Wire #10 Wire #12 Wire #14 Wire #16 Wire
2.5 300 600 1000 ft. 600 ft. 375 ft. 250 ft.
5 600 1200 500 ft. 300 ft. 200 ft. 125 ft.
7.5 900 1800 350 ft. 200 ft. 125 ft. 100 ft.
10 1200 2400 250 ft. 150 ft. 100 ft. 50 ft.
15 1800 3600 150 ft. 100 ft. 65 ft.
20 2400 4800 175 ft. 125 ft. 75 ft.
25 3000 6000 150 ft. 100 ft.
30 3600 7200 125 ft. 65 ft.
40 4800 9600 90 ft.
ELECTRIC MOTOR LOADS
It is characteristic of common electric motors in normal operation to draw up to six times their running current while
starting. This table may be used to estimate the watts required to start “Code G” electric motors; however, if an elec-
tric motor fails to start or reach running speed, turn off the appliance or tool immediately to avoid equipment damage.
Always check the requirements of the tool or appliance being used compared to the rated output of the generator.
Motor Size (H.P.) Running Watts Watts Required to Start Motor
Repulsion Induction Capacitor Split Phase
1/8 275 600 850 1200
1/6 275 600 850 2050
1/4 400 850 1050 2400
1/3 450 975 1350 2700
1/2 600 1300 1800 3600
3/4 850 1900 2600 —
1 1100 2500 3300 —
ELECTRICAL

7
MAJOR GENERATOR FEATURES
Subaru OHC engine
Cast-iron cylinder sleeve
Receptacles on control panel
Cord retainer
4 gallon fuel tank
Portability Kit
CONTROL PANEL
A. 120 V, 20 Ampere Duplex Receptacle
20 amps of current may be drawn from each half of the
receptacle. However, total power drawn must be kept within
nameplate ratings. These receptacles may be used along with
the twistlock receptacle provided the generator is not over-
loaded.
B. 120/240 V, 20 Ampere Twistlock Receptacle
A maximum of 20 amps may be drawn from the 120/240
volt receptacle, provided it is the only receptacle used. However,
current must be limited to the nameplate rating. If the 120/240
volt receptacle is used along with the 120 volt receptacle, the
total load drawn must not exceed the nameplate ratings.
C. Circuit Breakers
The receptacles are protected by an AC circuit breaker. If
the generator is overloaded or an external short circuit occurs,
the circuit breaker will trip. If this occurs, disconnect all electri-
cal loads and try to determine the cause of the problem before
attempting to use the generator again. If overloading causes the
circuit breaker to trip, reduce the load. NOTE: Continuous trip-
ping of the circuit breaker may cause damage to generator
or equipment. The circuit breaker may be reset by pushing the
button of the breaker.
D. Cord Retainer
The cord retainer is used to prevent plugs from being pulled
out of the 120-volt receptacles.
HU3650

2
TOOLS REQUIRED: 7/16", 1/2" and 9/16" sockets and ratchets, block(s) of wood (minimum of 6" tall).
Refer to the parts list and drawing on pages 36-38.
WHEEL INSTALLATION
Block up end of generator opposite the fuel tank cap to install wheel kit.
Insert wheel spacer (item 43) into the center of the wheel (item 35).
Slide 3/8 x 4.25" bolt (item 41) and 3/8 washer (item 38) through the wheel (item 35), then through the wheel bracket on the
carrier, with the offset side of the wheel hub against the wheel bracket.
Thread 3/8 nyloc nut (item 42) onto the bolt and tighten to securely clamp the wheel assembly to the carrier.
Repeat above instructions for the remaining wheel.
FOOT INSTALLATION
Assemble the rubber feet (item 37) to the foot bracket (item 50) using a 1/4-20 x 1.5" bolt (item 48). Thread a 1/4 washer (item
49) and a 1/4 nyloc nut (item 13) to the bolt to secure the assembly. Caution: Do not over tighten so that the foot material
collapses.
Blocking up the alternator side of the generator, place the foot bracket under the carrier channel. Thread a 5/16-18 x 1" bolt (item
36) through the mounting holes and thread a 5/16 flange nut (item 15) to the bolt to secure the foot bracket to the carrier.
LOCKING HANDLE
Attach the lanyard (item 39) to the release pin
(item 44) and carrier as shown in the illustra-
tion.
To lock the handle (item 31) in the extended
position, align the holes in the handle bracket
with the holes in the carrier bracket and insert
the release pin (item 44).
Insert caps (item 45) into ends of handle (item
31).
PORTABILITY KIT INSTALLATION
8
1

9
INSTALLATION BEFORE OPERATION
WARNING:
To avoid possible personal injury or equipment damage,
registered electrician or an authorized service representative
should perform installation and all service. Under no
circumstances should an unqualified person attempt to wire
into a utility circuit.
WARNING:
To avoid backfeeding into utility systems, isolation of the
residence electrical system is required. Before temporary
connection of a generator to the residence electrical system
turnoffthemainswitch. Beforemakingpermanentconnections
a double throw transfer switch To avoid electrocution or
property damage, only a trained electrician should connect
generatortoresidenceelectricalsystem.Californialawrequires
isolation of the residence electrical system before connecting
a generator to residence electrical systems. Temporary
connection not recommended due to backfeeding.
Always follow local codes and regulations that apply to
the installation of any item that concerns this product.
GROUNDING THE GENERATOR
The National Electric Code requires that this product be
properly connected to an appropriate earth ground to help pre-
vent electric shock. A ground terminal connected to the frame
of the generator has been provided for this purpose. Connecting
a length of heavy gauge (12 AWG min.) copper wire between
the generator Ground Terminal and a copper rod driven into the
ground should provide a suitable ground connection. However,
consult with a local electrician to insure that local codes are
being adhered to.
GROUND TERMINAL LOCATION:
ground lug
WARNING:
Do not use a pipe as the ground source.

10
LUBRICATION
DO NOT attempt to start this engine without filling the crank
case with the proper amount and type of lubricant. (See the
accompanying engine manual for this information.) Your genera-
tor has been shipped from the factory without lubricant in the
crankcase. Operating the unit without lubricant can damage the
engine.
Fill the engine with lubricant according to the engine man-
ual. For units with a dipstick, fill lubricant to the proper level.
Units without a dipstick should be filled to the top of the opening
of the lubricant fill.
FUEL
Fill the tank with clean, fresh unleaded automotive gasoline.
Regular grade gasoline may be used provided a high octane
rating is obtained (at least 85 pump octane). We recommend
always using a fuel stabilizer. A fuel stabilizer will minimize the
formulation of fuel gum deposits during storage. The fuel sta-
bilizer can be added to the gasoline in the fuel tank, or into the
gasoline in a storage container. Do not use E85 fuel.
CAUTION:
Do not overfill the tank. Keep maximum fuel level 1/4 inch
below the top of the fuel tank. This will allow expansion in
hot weather and prevent overflow.
STARTING THE UNIT
DANGER:
Gasoline is very dangerous. Serious injury or death can result
from fire caused by gasoline contacting hot surfaces.
Do not fill fuel tank with engine running.
Do not spill fuel while refilling tank.
Do not mix lubricant with gasoline.
Follow all instructions and warnings in the engine
manual.
PRE-START PREPARATION
Before starting the generator, check for loose or missing
parts and for any damage which may have occurred during
shipment.
WARNING:
Thisgenerator mustnotbeoperatedwithoutallfactoryinstalled
heat shields in place. Failure to comply may cause the fuel
tank to overheat and result in personal injury from fire.
STARTING THE ENGINE
Check lubricant level and fuel.
Disconnect all electrical loads from the unit.
Open fuel shut off valve.
Adjust choke as necessary.
Set the engine switch to the “ON” position.
Pull on the starter rope with fast steady pull. As the engine
warms up, readjust the choke.
DANGER:
Provide adequate ventilation for toxic exhaust gases and
cooling air flow.
Do not start or run the generator in an enclosed area, even
if door or windows are open.
Engines give off carbon monoxide, an odorless, colorless,
poison gas.
Breathing carbon monoxide can cause nausea, fainting
or death.
CAUTION:
Allow generator to run at no load for five minutes upon each
initial start-up to permit engine and generator to stabilize.