IHS Roof Pro 12000 User manual

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Roof Pro 12000
Portable Generator
Operators Manual

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INTRODUCTION
This manual contains important setup and operator in-
structions. Please read all instructions before starting
and operating the generator.
OPERATOR MANUAL USAGE
Congratulations, and thank you for choosing the Roof
Pro 12000 enerator for your application. You have
selected a high quality and precision engineered prod-
uct that has been designed to provide years of satisfac-
tory service.
To get the best performance from your new generator/
engine set, it is important that you carefully read and
follow the operating instructions in this manual. Should
you experience any problems, then please see page 10
for the Troubleshooting Hints’ section of this manual,
and/or call 844-862-7880 for technical support.
PROPER INSTALLATION & USAGE
You must be sure your new generator/engine set is:
 Properly serviced before starting.
 Operated in a well ventilated area.
 Properly exhausted and gases safely dispersed.
 Operated only for its designed purposes.
 Properly maintained.
 Used only by operators who understand its operation.
SERIAL NUMBER INFORMATION
No other Industrial Heat Sources generator has the same
serial number as yours. It is important that you record the
serial number, and additional vital information. Should you
need to contact us, this information will help us to provide
you with faster and more efficient service.
Model Number: ___________________________________
Serial Number: ___________________________________
Purchase Date: ___________________________________
Dealer Name: ____________________________________
Dealer Telephone Number: __________________________
SPECIFICATIONS
 Volts: 120/240
 Amps: 90/45
 Continuous Watts: 10800
 Surge Watts: 12000
 Amps 90/45
 Engine Honda X630R VXE1
 enerator Mecc Alte Spa S20FS-160/A
 Three 120-volt receptacles (NEMA 5-20R, 20AMP)
 One 240-volt receptacle (NEMA 6-50R, 50AMP)
 Independent FCI - protected receptacles
 425-volt, heavy-duty capacitors
 25-amp, 1,200-volt diodes
SAFETY INFORMATION
This generator/engine set has been designed and manu-
factured to allow safe and reliable performance. Poor
maintenance, improper, or careless use can result in po-
tentially deadly hazards; from electrical shock, exhaust gas
asphyxiation, or fire. Please read all safety instructions
carefully before installation or use. Keep these instruction
handy for future reference. Take special note and follow all
warnings on the unit labels, as well as in the manuals.
TABLE OF CONTENTS
Introduction Pg. 2
Basic Information
- Proper Use & Installation
- Specifications
- Safety Information
Pg. 2 - 3
ANSI Safety Section
- Testing Policy
- Intended Usage -
- Restricted Usage
Pg. 3 - 4
Unit Capabilities
- enerator Connections
- Starting Electric Motors
Pg. 4 - 5
Preparing The Unit - Unpacking
- Lubricating
- asoline Usage
- Battery Installation
- Battery Charging
- Optional Dolly Kit
- Oil Alert System
- Initial Startup
Pg. 5 - 6
Warranty Information Pg. 12
- Basic Operation
- Electric Starting
- Stopping & Storage
- Operating Speed
- Connecting the Loads
- rounding the Unit
- Wiring
- Engine Care
- enerator Care
Pg. 6 - 9
Maintenance Log Pg. 11
Troubleshooting Pg. 10

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ANSI Safety Definitions
***********************************************************
DANGER:
‘DANGER’ indicates an imminently hazardous situation
which, if not avoided, will result in death, or serious injury.
This signal word is to be limited to the most extreme situ-
ations.
***********************************************************
***********************************************************
WARNING:
‘WARNING’ indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
***********************************************************
***********************************************************
CAUTION:
‘CAUTION’ indicates a potentially hazardous situation,
which if not avoided may result in minor, or moderate inju-
ry. It may also be used to alert against unsafe practices.
***********************************************************
***********************************************************
NOTE:
‘CAUTION’ is also used on the unit labels and in this
manual to indicate a situation that could result in serious
damage, or destruction of the equipment, as well as pos-
sible personal injury
1. ELECTRICAL SHOCK: The output voltage present in
this equipment can cause fatal electric should. This
equipment.
a. Do not allow anyone to operate the generator without
proper instruction.
b. uard against electric shock.
c. Avoid contact with live terminals or receptacles.
d. Use extreme care if operating this unit in rain or
snow.
e. Use only three pronged grounded receptacles and
extension cords.
f. Be sure the unit is properly grounded to an external
earth ground rod driven into the earth.
2. FIRE HAZARD: asoline and other fuels present a
hazard of possible explosion and/or fire.
a. Do not refuel when the engine is running or hot.
b. Keep fuel containers out of reach of children.
c. Do not smoke or use an open flame near the genera-
tor set or fuel tank.
d. Keep a fire extinguisher nearby and know its proper
use. Fire extinguishers rated ABC by NFPA are ap-
propriate.
e. Store fuel only in an approved container, and only in a
well ventilated area.
f. Follow local codes for closeness to combustible
material.
3. DEADLY EXHAUST GAS: Exhaust fumes from any
gasoline powered engine contains carbon monoxide.
An invisible, odorless and deadly gas that must be
mixed with fresh air.
a.
Operate only in well ventilated areas.
b. Never operate indoors.
c. Never operate the unit in such a way as to allow ex-
haust gases to seep back into closed rooms.
4. NOISE HAZARD: Excessive noise can lead to loss of
hearing.
a. Use hearing protection when working around the
equipment for long periods of time.
b. Adhere to local noise laws and ordinances where nec-
essary.
5. CLEANLINESS: Keep the generator and surround-
ing area clean.
a. Remove all grease, ice, snow or materials that create
slippery conditions around the unit.
b. Remove any rags or other materials that could create
a potential fire hazard.
c. Carefully clean up and gas or oil spills before starting
the unit.
6. SERVICING EQUIPMENT: All service, including the
installation or replacement of service parts, should
only be performed by a qualified technician.
a. Use only factory approved repair parts.
b. Do not work on this equipment when fatigued.
c. Never remove the protective guards, covers, or re-
ceptable panels while the engine is running.
d. Use extreme caution when working on electrical com-
ponents. High output voltage from this equipment can
cause serious injury or death.
e. Always avoid hot mufflers, exhaust manifolds, and en-
gine parts. They can cause severe burns instantly.
f. The use of the generator/engine set must comply with
all national, state, and local codes.

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TESTING POLICY
Before any generator is shipped from the factory, it is
fully checked for performance. The generator is loaded
to its full capacity. The voltage, current, and frequency
are carefully checked.
Rated output of generator is based on engineering tests
of typical units, and is subject to, and limited by, the tem-
perature, altitude, fuel, and other conditions specified by
the manufacturer of the applicable engines.
INTENDED USAGE
This engine generator set has been designed primarily
for portable heavy duty commercial use. Both 120 volt
and 240 volt receptacles are provided in the control panel
to plug in your loads (lights, portable tools, and small ap-
pliances). These units are dual wound generators.
Therefore the 120 volt loads must be equally split with
1/2 of the rated capacity available on each of the two 120
volt circuits.
This portable unit requires large quantities of fresh air for
cooling the engine and generator. For safety, long life
and adequate performance, these units should never be
run in small compartments without positive fresh air flow.
RESTRICTED USAGE
Do Not remove from the cradle assembly. Removal of
the generator from the cradle assembly my cause exces-
sive vibration and damage to the generator/engine set.
Do Not install and operate this generator in a small com-
partment., i.e. generator compartments of vehicles, motor
homes or travel trailers. These compartments will not
allow enough free flow of fresh air to reach the engine
generator set for cooling and will cause the unit to over-
heat damaging both the engine and generator. Small
compartments will also develop hot spots where there is
very little air flow and may cause a fire.
Please Note that there are 3rd party companies making
enclosures for generators that have been properly engi-
neered. The use of these 3rd party enclosures is ac-
ceptable as long as they have been certified and meet
current code.
Do Not attempt to operate at 50 cycles. These units are
designed and governed to operate at 60 cycles only.
UNIT CAPABILITIES
1. ENERATOR CONNECTIONS
WL12000HE: 120 volt and 240 volt receptacles are pro-
vided for connection to various loads. The diagram below
represents a 12,000 watt (maximum output) generator.
Receptacles A and B are the two 120 volt duplex recep-
tacles. Up to 6,000 watts at 120 volts (50 Amps) can be
taken from the generator at each of the receptacles. This
generator produces 120 and 240 volt, 60 Hz (Hertz), AC
(Alternating Current).
Check the appliance or tool nameplates for the current
and voltage to insure compatibility. Remember that power
taken from receptacle C reduces the power available at
both A and B and vice versa.
2. STARTIN ELECTRIC MOTORS
Electric motors require much more current (amps) to start
them than to run them. Some motors, particularly low cost
split-phase motors, are very hard to start and require 5 to
7 times as much current to start them as to run them. Ca-
pacitor motors are easier to start and usually require 2 to
4 times as much current to start them as to run them. Re-
pulsion Induction motors are the easiest to start and re-
quire 1 1/2 to 2 1/2 times as much to start them as to run
them.
Most fractional horsepower motors take about the same
amount of current to run them whether they are Repulsion
Induction (RI), Capacitor (Cap), or Split-Phase (SP) type.
The chart below shows the approximate current required
to start and run various types and sizes of 120 volt 60 cy-
cle electric motors under average load conditions.
The figures given above are an average load such as a
blower or fan. If the electric motor is connected to a hard
starting load such as an air compressor, it will require
more starting current. If it is connected to a light load, or
no load such as a power saw, it will require less starting
current. The exact requirement will also vary with the
brand or design of the motor.
Self-exiting generators respond to severe overloading dif-
ferently than utility power. When overloaded, the engine is
not able to supply enough power to bring the electric mo-
tor up to operating speed.

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The generator responds with high initial starting current,
but the engine speed drops sharply. The overload may
stall the
engine. If allowed to operate at very low speeds, the elec-
tric motor starting winding will burn out in a short time.
The generator winding might also be damaged.
3. CAUTION: EQUIPMENT DAMAGE
RUNNING THE GENERATOR/ENGINE SET UNDER
THESE CONDITIONS MAY RESULT IN DAMAGING
THE GENERATOR STATOR AS WELL AS THE MOTOR
WINDING.
The heavy surge of current required for starting motors is
required for only an instant. The generator will not be
damaged if it can bring the motor up to speed in a few
seconds of time. If difficulty is experienced in starting mo-
tors, turn all other electrical loads off and if possible re-
duce the load on the electric motor.
PREPARING THE UNIT - UNPACKING
CAUTION: EQUIPMENT DAMAGE - THIS UNIT
HAS BEEN SHIPPED WITHOUT OIL
Failure to maintain the engine oil at the proper level will
result in serious engine damage. When you unpack your
new generator/engine set be sure to remove all the infor-
mation sheets and manuals from the carton.
1. This generator/engine set was in good order when
shipped. Inspect the generator/engine set promptly
after receiving it. If any damage is noted, notify the
transportation company immediately; request proper
procedures for filing a “concealed damage” claim. Title
to the equipment and responsibility for filing a claim
rests with you when a generator/engine set is sent
F.O.B. shipping point. Only you can legally file a claim.
2. Before proceeding with the preparations of your new
generator/engine set operation, take a couple of
minutes to insure that the unit you have received is the
correct model, and review the specification pages in
this manual to insure that this unit meets your job re-
quirements.
LUBRICATING
1. Before starting the engine, fill the crankcase to the
proper level with a good quality oil. The recommend-
ed grade of oil and quantity of oil required is listed in
the engine operators manual.
2. The necessity of using the correct oil, and keeping the
crankcase full cannot be overemphasized. Engine
failures resulting from inadequate or improper lubri-
cant are considered abuse, and are not covered by
the generator and/or engine manufacturers warranty.
GASOLINE USAGE
1. When using gasoline always use a good grade of un-
leaded fuel. This engine is certified to operate on unlead-
ed gasoline with a pump octane rating of 86 or higher.
asoline containing no more than 10% ethanol (E10) or
5% methanol by volume may be used.
2.In addition, methanol must contain co-solvents and cor-
rosion inhibitors. Use of fuels with content of ethanol or
methanol greater than shown above may cause starting
and/or performance problems. Always insure that the fuel
is clean and free of all impurities.
WARNING: FIRE DANGER
Gasoline and its fumes are VERY explosive when
proper precautions are not taken.
1. Never use gasoline that has been stored for an ex-
tended period of time as the fuel will lose its volatile prop-
erties and you will be left with only the varnish residue.
The varnish like substance will clog the carburetor and will
not burn properly.
2. The use of fuel additives, such as STA-BIL, or an
equivalent will minimize the formation of fuel gum depos-
its. If a unit has been out of operation for an extended pe-
riod of time it is best to drain old fuel from the engine and
replace with fresh fuel before attempting to start.
BATTERY INSTALLATION
You will need to purchase and install a battery to operate
it. All electric start engine generator sets are shipped with
a battery kit for customer installation. This kit consists of a
battery tie down, hardware, and instruction sheet for in-
stallation. After installing the battery and battery hold down
kit, file the instruction sheet in the back of this manual for
future reference.
1. A twelve volt battery, BCI group U1 rated at 300 CCA
or larger is recommended for this electric start engine gen-
erator set. Follow the battery manufacturers recommenda-
tions for servicing and charging prior to use. Connect the
battery to the electric start system using the cables provid-
ed.
2. CAUTION: EQUIPMENT DAMAGE
a. These electric start engines are NEGATIVE
GROUND. Use extreme caution hen connecting the
battery. Connect the NEGATIVE battery terminal to
GROUND. For your safety always connect the positive
battery cable to the “bat+” terminal first. Then connect the
negative battery cable to the “bat-” terminal. Make sure all
connections are clean and tight.

6
b. Reverse the sequence when disconnecting, discon-
nect the negative cable first. These engines produce
enough direct current to keep a battery charged under
normal operating conditions, but is not intended to be
used as a battery charger.
WARNING: PERSONAL INJURY
Lead acid batteries produce explosive hydrogen gas
when charging. Keep sparks, flames, and burning ciga-
rettes away from the battery. Ventilate the area when
charging or using the battery in an enclosed space. Lead
acid batteries contain sulfuric acid, which causes severe
burns. If acid contacts eyes, skin or clothing, flush well
with water. For contact with eyes, get immediate medical
attention.
BATTERY CHARGING
Units equipped with electric start have a small fly wheel
charger built into the engine fly wheel assembly for re-
charging the starting battery. This fly wheel charger gen-
erates a small AC current that passes through a diode
assembly to produce a DC charging current of about 1 to
3 AMPS. This circuit is not designed to be used as a bat-
tery charging circuit to recharge dead batteries
OPTIONAL DOLLY KIT
An optional dolly kit is available for this generator. The
dolly kit comes with instructions and parts list. After in-
stalling the dolly kit, file the instructions and parts list in
the back of this manual for future reference.
OIL ALERT SYSTEM
All Hy-Tech Industrial generators are equipped
standard with low oil shutdown systems. These engine
generator sets come equipped standard with the
Honda Oil Alert System. The Oil Alert system is
designed to prevent damage caused by an insufficient
amount of oil in the crankcase. Before the oil level in
the crankcase can fall below a safe limit, the Oil Alert
system will automatically shut down the engine (the
engine switch will remain in the ON position).
INITIAL START UP
The throttle control on these generators is preset and
locked to operate at 3600 RPM (nominal) with no load
speed set at 3690 RPM. Only a trained service
technician should be allowed to adjust this speed
setting.
NOTICE: ENGINE START LOCKOUT
This unit ill not start if it is lo on oil. The lubricating
oil level must be at the full mark before the engine ill
start and run.
BASIC OPERATION
ELECTRIC STARTING
If the engine is cold and stiff or if the battery is not fully
charged, starting can be made easier by slowly hand
cranking the engine through the compression stroke before
pushing the starter switch. This permits the starter to gain
momentum before the heavy load of the compression
stroke occurs. This minimizes the drain on the battery and
improves the possibility of starting under such adverse
conditions. Always keep the battery charged, especially
during cold weather operation.
1. Turn on the fuel supply.
2. Move the choke to the full “on” position. A warm engine
will require less choking than a cold engine.
3. Engage the engine start switch briefly to the START
position. The starter life is improved by using shorter
starting cycles with time to cool off between cranking
cycles. Do not operate the starter more than 15 sec-
onds during each minute. Repeat if necessary.
4. When the engine starts, open the choke gradually.
5. The engine should promptly come up to operating
speed.
CAUTION: EQUIPMENT DAMAGE
Never permit the choke to remain on after the engine
has run for a short time. It is not necessary to choke
the engine hen it is arm. Avoid over-choking.
STARTING HINTS
1. Cold weather
a. Use the proper oil for the temperature expected.
b. Use fresh winter grade fuel. Winter grade gasoline is
blended to improve starting. Do not use summer gaso-
line.
c. A slightly richer fuel mixture will usually improve cold
starting.
2. Hot weather
a. Use the proper oil for the temperature expected.
b. Use only summer blended gasoline. Using gas-oline
left over from winter may cause the
unit to vapor lock.
STOPPING AND STORAGE
1. Move the on/off switch to the “OFF” position.
2. Before extended storage (over 30 days) certain precau-
tions must be taken care of to ensure the fuel does not
deteriorate and clog the fuel system.

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Note:
The use of a fuel additive, such as STA-BIL or an equiva-
lent will minimize the formation of gum deposits during
storage. Such an additive may be added to gasoline in
the engines fuel tank or to gasoline in a storage contain-
er.
a. Remove the remaining fuel from the fuel tank.
b. Start the engine and allow it to run until all the fuel in
the carburetor and the fuel lines has been used up
and the engine stops.
c. While the engine is warm, drain the oil and refill with
fresh oil.
d. Remove the spark plug, pour approximately 1/2
ounce (15 cc) of engine oil into the cylinder and crank
slowly to distribute the oil. Replace the spark plug.
e. Clean dirt and chaff from cylinder, cylinder head fins,
blower housing, screen and muffler areas.
f. Store in a clean and dry area.
OPERATING SPEED
The engine-generator must be run at the correct speed in
order to produce the proper electrical voltage and fre-
quency.
CAUTION: EQUIPMENT DAMAGE
The output voltage should be checked to insure the gen-
erator is orking properly prior to connecting a load to the
generator. Failure to do so could result in damage to
equipment plugged into the unit and possible injury to the
individual.
a. All engines have a tendency to slow down when a
load is applied. When the electrical load is connected
to the generator, the engine is more heavily loaded,
and as a result the speed drops slightly.
b. This slight decrease in speed, together with the volt-
age drop within the generator itself, results in a slight-
ly lower voltage when the generator is loaded to its
full capacity, than when running no load. The slight
variation in speed also affects the frequency of the
output current. This frequency variation has no ap-
preciable effect in the operation of motors, lights and
most appliances. However, electronic equipment
and clocks will be affected if correct RPM is not main-
tained.
c. Although individual units and models vary slightly, the
normal voltage and frequency of the engine-
generator described in this manual under varying
loads. Please see the approximate values under var-
ying loads. See the following Load vs. Output chart.
The speed of the engine was carefully adjusted at the fac-
tory so that the generator produces the proper voltage and
frequency. For normal usage, the speed setting should not
be changed. If the generator is being run continuously on
a very light load, it is often advisable to lower the operating
speed slightly.
Whenever making any speed adjustments check the unit
with a voltmeter or tachometer and be sure the speed is
correct. Lower voltage may damage both the generator
and any load connected to it. Running the engine at ex-
cessively high speeds results in high voltage, which may
significantly shorten the life of appliances being used.
Output voltage should be checked periodically to ensure
continued proper operation of the generating plant and
appliances. If the generator is not equipped with a voltme-
ter, it can be checked with a portable meter. Frequency
can be checked by using an electric clock with a sweep
second hand. Timed against a wrist watch or a stop watch,
the clock should be correct within +/- 2 seconds per mi-
nute.
CONNECTING THE LOADS
APPLYING THE LOADS
Allow the engine to warm up for two or three minutes be-
fore applying any load. This will allow the engine to reach
normal operating temperature and oil to circulate through-
out the engine. A short warm-up time will permit the en-
gine to work more efficiently when the load is applied and
will reduce the wear in the engine, extending its life.
Receptacles have been provided to allow loads to be con-
nected to the generator. The loads should be added one
at a time. If a large motor is being started or multiple mo-
tors are being started, they should be started individually
and the largest should be started first.
CAUTION: EQUIPMENT OVERLOAD
Operate the generator load within the generator and re-
ceptacle nameplate rating. Overloading may cause dam-
age to the generator and/or the loads. Most electric tools
and appliances will have the voltage and amperage re-
quirements on their individual nameplates. When in doubt
consult the manufacturer, or a local electrician.
See “Starting Electric Motors” in Unit Capabilities (page 4).
Load vs. Output
enera-
tor Load
Speed
(RPM)
Frequency
(Hz)
Voltage
None 3690 61.5 125V
Half 3600 60.0 120V
Full 3510 68.5 115V

8
The generator/engine set is inherently a self regulating
unit based on engine speed. The engine governor will
automatically adjust itself to the load. No harm to the
generator will result if it is operated with no load con-
nected. Proper utilization of the receptacles located on
the control panel is necessary to prevent damage to
either the receptacles or the generator.
The generator is a limited source of electrical power,
therefore pay special attention to the receptacle and
generator ratings. The nameplate rating can be ob-
tained through a single receptacle as long as the recep-
tacle amperage rating is not exceeded.
GROUNDING THE UNIT
All units must be grounded. Drive a 3/4 or 1” copper
pipe or rod into the ground close to the generator/
engine set. The pipe must penetrate moist earth. Con-
nect an approved ground clamp, to the pipe. Run a no.
10 AW wire from clamp to the generator ground lug on
the receptacle panel. Do not connect to a water pipe or
to a ground used by a radio system.
The generator/engine set covered in this manual is d
signed for portable use. DO NOT OPERATE THIS
GENERATOR INDOORS. During a power outage,
move the unit outdoors to a flat dry location such as a
driveway or sidewalk before use. The unit should be
stored in a warm dry location.
WIRING
Plug your tools such as drills, saws, blowers, sump
pump and other items to be powered directly into the
generator receptacles. Before plugging in all the tools
and cord sets, recheck the rating of the generator set.
Be sure it can handle the intended load and is compati-
ble with the voltage, phase, and current ratings.
‘Hard Wiring’ this unit directly into a temporary construc-
tion site electrical system is NOT A SIMPLE DO-IT-
YOURSELF JOB. For your safety all wiring must be
done by a qualified electrician and conform to the Na-
tional Electric Code and comply with all state and local
codes and regulations. Check with local authorities be-
fore proceeding.
WARNING: PERSONAL DANGER
A fully isolated, double pole double thro manual
transfer s itch must be installed any time a generator
is being connected to an existing distribution system.
1. These engine generator sets are designed for port-
able heavy duty commercial use. Receptacles are
provided on the control panel to permit 120 and 240
volt portable appliances and tools to be plugged
directly into them. Please note that the 3-wire 240
volt receptacle-(s) on these units are designed to
power only 240 volt tools. There are two hot leads
and a ground wire, but no neutral connection, in the
3-wire 240 volt receptacle.
A 4-wire receptacle (two hot, one ground, and one neu-
tral) has been provided on the control panel for use in
temporary power applications requiring 120/240 volt
power. Consult a licensed electrician for wiring the
‘Tempower Plug’, and connecting it as temporary ser-
vice. To connect these units directly to an un-powered,
isolated construction site ‘Tempower Panel’, have your
electrician connect to the control panel using a 120/240
volt, 4-wire twist-lock plug (L14-30P). The use of locking
receptacles and locking plugs provides the convenience
of quick disconnect, for moving, while allowing workers
to safely reconnect the power. In addition they prevent
the plug from being accidentally removed by bumping or
vibration.
2. If the generator set is be connected to existing distri-
bution system a fully isolated manual transfer switch
must be installed. The transfer switch prevents dam-
age to the generator and other circuit components if
main line power is restored while the generator is
connected. Installing a transfer switch also permits
the use of normal fusing.
3. Many homes and construction sites are wired for at
least 60 to 100 Amp entrance service, much greater
than the capacity of these portable generators. When
installing the generator at these sites, a secondary
emergency distribution panel may have to be in-
stalled, such as the Emergency Transfer/Service
(ET/S) system available through Hy-Tech. The emer-
gency distribution panel must be installed by a li-
censed electrician according to all applicable codes.
The electrician will move the critical circuits to be
powered during the outage to the emergency panel.
Keep in mind only a limited amount of amperage is
available from the generator set. Some circuit break-
ers may still have to be turned off to prevent an over-
load on the generator during the initial start up. See
the nameplate on your generator for the amperage
capabilities of your unit.
CAUTION: EQUIPMENT DAMAGE
Failure to properly limit and balance the load applied to
the generator ill cause the generator to produce lo
voltage and may damage the engine generator set. It
may also cause severe damage to the loads connected
to the generator at that time. Improper loading of the
generator set constitutes abuse and ill not be covered
by arranty.
ENGINE CARE
If major engine service or repair is required contact an
authorized engine service center. The manufacturer of
these engines has established an excellent world-wide
engine service organization. Engine service is very like-
ly available from a nearby authorized dealer or distribu-
tor. Check the yellow pages of your local telephone di-
rectory under “Engines- asoline” for the closest engine
repair center or ask the dealer from whom you pur-
chased the power plant.

9
1. Change the oil after the first month or 20 hours of op-
eration and every 6 months or 100 hours thereafter un-
der normal operating conditions. Change engine oil
every 25 hours of operation if the engine is operated
under heavy load, or in high ambient temperatures.
a. Remove oil drain plug at base of the engine and
drain the oil with the engine warm.
b. Replace oil drain plug.
c. Remove oil filler plug and refill with new oil. Refer
to the table in the engine manual for the proper
grade of oil based on your operating temperature.
d. Replace filler plug.
2. Checking the Oil Level: The oil level must always
be checked before the engine is started. Take care to
remove any dirt or debris from around the oil fill plug
before removing. Be sure the oil level is maintained. Fill
to the “FULL” mark on the dipstick.
3. Dual Element Air Filter: Clean and or replace foam
pre-cleaner and air filter every 6 months or 100 hours.
Service more often under dusty conditions.
a. Loosen screws and remove cover and air cleaner
assembly from base.
b. Remove foam pre-cleaner by sliding it off the
paper cartridge.
c. Wash foam pre-cleaner in liquid detergent and
Water.
d. Wrap foam pre-cleaner in cloth and squeeze dry.
e. Saturate foam pre-cleaner in engine oil. Squeeze
to remove excess oil.
f. Clean Air filter using compressed air.
g. Install foam pre-cleaner over air filter.
h. Re-install the Air Filter assembly. Reassemble
cover and screw down tight.
Do not use petroleum solvents, such as kerosene, to
attempt to clean the cartridge. They may cause
deterioration of the cartridge. DO NOT OIL
CARTRID E. DO NOT USE PRESSURIZED AIR TO
CLEAN OR DRY CARTRID E.
4. Spark Plug: Clean and reset gap at .030” every 6
months or 100 hours of operation. Do not blast clean
spark plug. Clean by scraping or wire brushing and
washing with a commercial solvent. Poor spark will
occur if terminal does not fi t firmly on spark plug. If this
happens reform the terminal to fi t firmly on spark plug
tip.
5. Carbon Canister: Designed to collect, store, and dis-
pose of fuel vapors created in the fuel tank / fuel sys-
tem. Remove and clean or replace the filter on the
canister when maintaining your air filter. The canister
will last the life of the unit.
GENERATOR CARE
Proper care and maintenance of the generator is neces-
sary to ensure a long trouble free life.
1. Exercising The Generator - The generator should
be operated every three to four weeks. It should be
operated for a period of time sufficient to warm the
unit up and to dry out any moisture that has accumu-
lated in the windings. If left, this moisture can cause
corrosion in the winding. Frequent operation of the
generator/engine set will also insure that the set is
operating properly should it be needed in an emer-
gency.
2. Generator Maintenance - Any major generator ser-
vice including the installation or replacement of parts
should be performed only by a qualified electrical
service technician.
USE ONLY FACTORY
APPROVED REPAIR PARTS.
a. Bearing - The bearing used in these generators is a
heavy duty double sealed ball bearing. They require
no maintenance or lubrication.
b. Receptacles - Quality receptacles have been utilized.
If a receptacle should become cracked or otherwise
damaged, replace it. Using damaged or cracked re-
ceptacles can be both dangerous to the operator and
destructive to the equipment.
CLEANING
Remove dirt and debris with a cloth or brush. DO NOT
use high-pressure spray to clean either the engine or
the generator. This high-pressure spray could contami-
nate the fuel system and the generator components.
1. Keep the air inlet screen on both the engine and gen-
erator free of any dirt or debris to insure proper cool-
ing. At least yearly remove the blower housing on the
engine and clean the chaff and dirt out of the engine
cooling fins and fly wheel. Clean more often if neces-
sary. Failure to keep these areas clean may cause
overheating and permanent damage to the unit.
2. Periodically clean muffler area to remove all grass,
dirt and combustible debris to prevent a fire.
3. On engine mufflers equipped with spark arresters, the
spark arrester must be removed every 50 hours for
cleaning and inspection. Replace if damaged.

10
TROUBLESHOOTING HINTS
PROBLEM (SYMPTOMS) - POSSIBLE CAUSES
_____________________________________________________________________________________________________________________________________________________________________________
1. WON’T START  Low Oil Level
 Fouled Spark Plug
 Out of Fuel
 Start Switch in Off Position
_____________________________________________________________________________________________________________________________________________________________________________
2. VOLTA E TOO LOW  Engine Speed is Too Low
 enerator Overloaded
 Defective Stator
 Defective Rotor (Field)
_____________________________________________________________________________________________________________________________________________________________________________
3. CIRCUIT BREAKER TRIPS  Defective Load
 Defective Receptacle
_____________________________________________________________________________________________________________________________________________________________________________
4. VOLTA E TOO HI H  Engine Speed is Too High
_____________________________________________________________________________________________________________________________________________________________________________
5. ENERATOR OVERTHEATIN  enerator Overloaded
 Insufficient Ventilation
6. NO OUTPUT VOLTA E
 Short in Load (Disconnect)
 Broken or Loose Wire
 Defective Receptable
 No Residual Magnetism (In enerator)
 Defective Stator
 Defective Rotor (Field
 Shorted Capacitor
 FCI Receptacle Tripped
_____________________________________________________________________________________________________________________________________________________________________________

11
DATE -
HOURS
ITEM WORK PERFORMED
MAINTENANCE LOG

12
24-MONTH LIMITED WARRANTY
Industrial Heat Sources, Inc., warrants to the original purchaser for 24 months that goods manu-
factured or supplied by it will be free from defects in workmanship and material, provided such
goods are installed, operated and maintained in accordance with Industrial Heat Sources, Inc.,
written instructions.
Industrial Heat Sources, Inc., sole liability, and the purchaser’s sole remedy for a failure under
this warranty, shall be limited to the repair of the product. At Industrial Heat Source Inc., option,
material found to be defective in material or workmanship under normal use and service will be
repaired or replaced. For warranty service, return the product within 24 months from the date of
purchase to Industrial Heat Sources, Inc., service center.
THERE IS NO OTHER EXPRESS WARRANTY.
To the extent permitted by law, any and all warranties, including those of merchantability and
fitness for a particular purpose, are limited to 24 months from date of purchase. In no event is
Industrial Heat Sources, Inc., liable for incidental or consequential damages.
Note: Some states do not allow limitation on the duration of implied warranty and some states
do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations may not apply in every instance. This warranty gives you specific legal rights which
may vary from state to state.
Industrial Heat Sources, Inc., reserves the right to change or improve it products without incur-
ring any obligations to make such changes or improvements on products purchased previously.
EXCLUSIONS:
 Industrial Heat Sources, Inc., does not warrant the engine. The engine is covered exclusively
by the warranties of their respective manufacturers.
 Industrial Heat Sources, Inc., does not warrant batteries, or other component parts that are
warranted by their respective manufacturers.
 Industrial Heat Sources, Inc., does not warrant modifications or alterations which were not
made by Industrial Heat Sources, Inc.
 Industrial Heat Sources, Inc., does not warrant products which have been subjected to mis-
use and/or negligence or have been involved in an accident.
 This warranty does not include travel time, mileage or labor for removal or reinstallation of a
Industrial Heat Sources, Inc., from its application.