Craftsman 919.670040 Owner's manual

Brand: Craftsman

Model: 919.670040

Category: Power generators

Type: Owner's manual

This manual is also suitable for

919670041

SEA FIS

Model No.

919.670041

i,,CRRFTSMRNI

120/240 VOLT • 4250 WATT

GENERATOR

IMPORTANT:

Read the Safety Guidelines

and All Instructions Care-

fully Before Operating

• SAFETY GUIDELINES

• ASSEMBLY

• OPERATION

• MAINTENANCE

• TROUBLESHOOTING

• REPAIR PARTS

Sold by Sears Canada, Inc., Toronto, Ont. M5B2B8

MGP-670041 Rev. 0 1/11/00

Warranty ................................................... 2

Safety Guidelines .................................. 3-8

Assembly ............................................. 9-10

Operation .......................................... 11-15

Maintenance ..................................... 16-18

Service Adjustments ............................. 18

Storage ................................................... 19

Troubleshooting Guide .......................... 19

Generator Parts ................................ 20-26

Engine Parts ..................................... 27-36

How To Order Parts ................. Back Cover

DATEPURCHASED:

MODEL NO:

SERIAL NO:

STOREWHERE PURCHASED:

ADDRESS:

CITY:

TELEPHONE:

Record the above information about your unit

so that you will be able to provide it incase of

loss or theft.

GHORSEPOWER 9 HP l

ASOLINE CAPACITY 7 GALLON/26.5 LITERS

IL CAPACITY 37.1OZ./1.1 L TERS

MAINTENANCE AGREEMENT

The Sears Warranty, plus a Maintenance Agreement, pro-

vide maximum value for your Sears products. Contact

your nearest Sears store for details.

CUSTOMER RESPONSIBILITIES

Read and observe the safety rules.

Follow a regular schedule in maintaining, caring for and

using your generator.

Follow the instructions under "Customer Responsibili-

ties" and "Storage" sections of this owner's manual.

FULL ON£ YEAR WARRANTY ON CRAFTSMAN GENERATORS

For one year from the date of purchase, when this Craftsman generator is maintained and operated according to the instruc-

tions in this owner's manual, Sears will repair, free of charge, any defect in material and workmanship.

If your Craftsman Generator is used for commercial or rental purposes, this warranty applies for only 90 days from the original

date of purchase.

FULL ONE YEAR WARRANTY ON CRAFTSMAN ENGINE

For one year from the date of purchase, when this Craftsman engine is maintained and operated according to the instructions

in this owner's manual, Sears will repair, free of charge, any defect in material and workmanship.

If your Craftsman engine is used for commercial or rental purposes, this warranty applies only for 90 days from thedate of

purchase. This warranty does not cover: Expendable items such as spark plugs and air filters, which become worn during

normal use.

Repairs necessary because of operator abuse or negligence, including damage resulting from no oil being supplied to

the engine or failure to maintain the equipment according to the instructions contained in this owner's manual, are not

covered under warranty.

WARRANTY SERVICE IS AVAILABLE BY RETURNING THE GENERATOR TO THE NEAREST SEARS SERVICE CENTER. This

warranty gives you specific legal rights and you may also have other rights, which vary from PROVINCE TO PROVINCE.

Sold by Sears Canada, Inc., Toronto, Ont.

MGP*670041 2 -- ENG

This manual contains information that is important for you to know and understand. This information relates to

protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information,

we use the symbols to the right. Please read the manual and pay attention to these sections.

DANGER indicates an imminently hazardous situation CAUTION indicates a potentially hazardous situation

which, if not avoided, wirl result in death or serious which, if not avoided,_ result in minor or moderate

in_juE, iniuw.

WARNING indicates a potentially hazardous situation CAUTION used without the safety alert symbol indicates a

which, if not avoided, could result in death of serious potentially hazardous situation which, if not avoided,

inEig__. result in property damaqe.

This product is not equipped with a spark arresting muffler. If the product will be used around flammable

materials, or on land covered with materials such as agricultural crops, forest, brush, grass, or other similar items,

then an approved spark attester must be installed and may be legally required in other countries.

• SAVE THESE INSTRUCTIONS "

When using this product basic precautions should always be

followed including the following:

RISK OF ELECTROCUTION AND FIRE

HAZARD WHAT COULD HAPPEN

Attempting to connect generator di-

rectly to the electrical system of any

building structure.

Back feeding electricity through a

building's electrical system to the

outside utility feed )ines cou)d en-

danger repair persons attempting to

restore service.

Attempting to connect to the incom-

ing utility service could result in

electrocution.

Restoration of electrical service while

the generator is connected to the

incoming utility could result in a fire or

serious damage if a isolator switch is

not installed.

Failure to use a double throw transfer

switch when connecting to a struc-

tures electrical system can damage

appliances and WILL VOID the

manufacturers warranty.

HOW TO PREVENT IT

Never backfeed electricity througt

a structure's electrical system.

To connect to a structure's electri

cat system in a safe manner,

always have a Double-Throw

Transfer Switch installed by a

qualified electrician and in compli

ance with local ordinances. (Whel

installing a Double-Throw

I Transfer Switch, a minimum of

10 gauge wiring must be used.)

3 -- ENG MGP-670041

READ AND UNDERSTAND ALL WARNINGS BEFORE

ATTEMPTING TO OPERATE GENERATOR.

HAZARD

Operation of generator in rain, wet,

icy, or flooded conditions.

Use of worn damaged, undersized

or ungrounded extension cords.

Placing generator on or against

highly conductive surface, such as

a steel walkway or metal roof.

Improper connection of items to

generator.

Operation of unit when damaged, or

with guards or panels removed.

RISK OF ELECTROCUTION AND F!RE (cont'd)

WHAT COULD HAPPEN

Water is an excellent conductor of elec-

tricity! Water which comes in contact

with electrically charged components

can transmit electricity to the frame and

other surfaces, resulting in electrical

shock to anyone contacting them.

Contact with worn or damaged exten-

sion cords could result in electrocution,

Use of undersize extension cords could

result in overheating of the wires or at-

tached items, resulting in fire.

Use of ungrounded cordsets could pre-

vent operation of circuit breakers and

result in electrical shock.

Accidental leakage of electrical current

could charge conductive surfaces in

contact with the generator.

Exceeding the load capacity of the gen-

erator by attaching too many items, or

items with very high load ratings to it

could result in overheating of some

items or their attachment wiring result-

ing in fire or electrical shock.

Attempting to use the unit when it has

been damaged, or when it is not func-

tioning normally could result in fire or

electrocution.

Removal of guarding could expose

electrically charged components and

result in electrocution.

HOW TO PREVENT IT

Operate generator in a clean, dry,

well ventilated area. Make sure

hands are dry before touching unit.

Inspect extension cords before use

and replace with new cord if re-

quired.

Use proper size (wire gauge) cordset

for application see chart in the As-

sembly section of this manual.

Always use a cordset having a

grounding wire with an appropriate

grounding plug. DO NOT use an

ungrounded plug.

Place generator on low conductiv-

ity surface such as a concrete

slab.

ALWAYS operate generator a

minimum of six feet from any

conductive surface.

Read the load rating chart and in-

structions in the Wattage Calcula-

tion section. Make sure that the

summation of electrical loads for all

attachments does not exceed the

load rating of the generator.

Do not operate generator with me-

chanical or electrical problem, Have

unit repaired by an Authorized Ser-

vice Center.

Do not operate gene:'ator with pro-

tective guarding removed.

MGP-670041 4 -- ENG

READ AND UNDERSTAND ALL WARNINGS BEFORE

ATTEMPTING TO OPERATE GENERATOR.

RISK OF FIRE

WHAT COULD HAPPENHAZARD

Attempting to fill the fuel tank while

the engine is running.

Sparks, fire, hot objects

Improper storage of fuel

Inadequate ventilation for genera-

tor

Tampering with factory set engine

speed settings.

Overfilling the fuel tank -

fuel spillage.

Gasoline and gasoline vapors can

become ignited by coming in contact

with hot components such as the

muffler, engine exhaust gases, or from

an electrical spark,

Cigarettes, sparks, fires, or other hot

objects can cause gasoline or gaso-

line vapors to ignite.

Improperly stored fuel could lead to

accidental ignition. Fuel improperly

secured could get into the hands of

children or other unqualified persons.

Materials placed against or near the

generator or operating the generator

_nareas where the temperature

exceeds 104 ° F.ambient (such as

storage rooms or garages) can

interfere with its proper ventilation

features causing overheating and

-possible ignition of the materials or

buildings.

Engine speed has been factory set to

:)rovide safe operation. Tampering

with the engine speed adjustment

could result in overheating of attach-

ments and could cause a fire.

Spilled fuer and its vapors can be-

come ignited from hot surfaces or

sparks.

5 -- ENG

HOW TO PREVENT IT

Turn engine off and allow it to cool

before adding fuel to the tank.

Equip area of operation with a fire

extinguisher certified to handle

gasoline or fuel fires.

Add fuel to tank in well ventilated

area. Make sure there are no

sources of ignition near the

generator.

Store fuel in a OSHA approved

container designed to hold gaso-

line. Store container in secure

location to prevent use by others.

Operate generator in a clean, dry,

well ventilated area a minimum of

four feet from any building, object

or wall. DO NOT OPERATE UNIT

INDOORS OR IN ANY CON-

FINED AREA.

Never attempt to "speed-up" the

engine to obtain more perfor-

mance. Both the output voltage

and frequency will be thrown out

of standard by this practice,

endangering attachments and the

user.

Use care in filling the tank to avoid

spilling fuel Make sure fuel cap is

secured tightly and check engine

for fuel leaks before starting

engine. Move generator away

from refueling area or any spillage

before starting engine. Allow for

fuel expansion. Keep maximum

fuel level ¼ inch below the tip of

the fuel tank. Never refuel with the

engine running.

READ AND UNDERSTAND ALL WARNINGS BEFORE

Risk of Injury and Property Damage When

Transportina Generator

HAZARD

Fire, Inhalation, Damage to Vehicle

Surfaces

WHAT COULD HAPPEN

Fuel or oil can leak or spill and could

result in fire or breathing hazard,

serious injury or death can result. Fuel

or oil leaks will damage carpet, paint

or other surfaces in vehicles or

trailers.

HOW TO PREVENT IT

If generator is equipped with a fuel

shut-off valve, turn the valve to the

off position before transporting to

avoid fuel leaks. If generator is not

equipped with a fuel shut-off valve,

drain the fuel from tank before

transporting. Transport fuel only in

an OSHA approved container.

Always place generator on a

protective mat when transporting

to protect against damage to

vehicle from leaks. Remove

generator from vehicle immedi-

ately upon arrival at your destina-

tion

RISK OF BREATHING - INHALATION HAZARD

HAZARD

Gasoline engines produce toxic

carbon monoxide exhaust fumes.

WHAT COULD HAPPEN

Breathing exhaust fumes will cause

serious injury or death.

HOW TO PREVENT IT

Operate generator in clean, dry,

well ventilated area. Never

operate unit in enclosed areas

such as garages, basements,

storage, sheds, or in any location

occupied by humans or animals.

Keep children, pets and others

away from area of operating unit.

MGP-670041 6 -- ENG

READ AND UNDERSTAND ALL WARNINGS BEFORE

ATTEMPTING TO OPERATE GENERATOR.

RISK OF UNSAFE OPERATION

HAZARD

Operation of generator in careless

manner.

Operation of voltage sensitive appli-

ances without a voltage surge pro-

tector.

Raising or suspending generators

equipped with lift rings improperly

Operating generator while suspended

WHAT COULD HAPPEN

All sources of energy include the

)otential for injury. Unsafe operation

or maintenance of your generator

could lead to serious injury or death

to you or others.

Any gasoline operated household

generator will incur voltage variations

causing damage to voltage sensitive

appliances or could result in fire.

Generator could fall causing serious in-

jury or death to you or others.

Improper raising or suspending can

cause damage to the generator.

Generator will not operate properly

and will cause damage to the genera-

tor and could cause serious injury or

death to you or others.

HOW TO PREVENT IT

• Review and understand all of

the operating instructions and

warnings in this manual.

• Become familiar with the

operation and controls of the

generator. Know how to shut it

off quickly.

• Equip area of operation with a

fire extinguisher certified to

handle gasoline or fuel fires.

• Keep children or others away

from the generator at all times.

Always use a U.L. listed voltage

sensitive surge protector to

connect voltage sensitive appli-

ances such as TV, computer, or

stereo equipment. Failure to use

a U.L. listed voltage surge

protector will void the warranty

on your generator.

Notice: A multiple outlet strip is

not a surge protector make sure

you use a U.L. listed voltage surge

)rotector.

Always use proper connecting

)rocedures as described in this

manual when connecting cables,

chains, or straps for raising or

suspending generators equipped

with lift rings.

Always use cables, chains, or

straps rated at 2000 Ibs working

load or more to raise or suspend

generator.

Never operate generator while

suspended or in an unlevel posi-

tion. Always operate generate on

a flat, level surface.

7 -- ENG MGP-670041

READ AND UNDERSTAND ALL WARNINGS BEFORE

ATTEMPTING TO OPERATE GENERATOR.

RISK OF HOT SURFACES

HAZARD

Contact with hot engine and

generator components.

WHAT COULD HAPPEN

Contact with hot surfaces, such as

engines exhaust components, could

result in serious burns.

HOW TO PREVENT IT

During operation, touch only the

control surfaces of the generator.

Keep children away from the

generator at all times. They may

not be able to recognize the

hazards of this product.

RISK OF MOVING PARTS

HAZARD

Contact with moving parts can

result in serious injury.

WHAT COULD HAPPEN

The generator contains parts which

t_otateat high speed during operation.

These parts are covered by guarding

to prevent injury.

HOW TO PREVENTIT

Never operate generator with

guarding or cover plates removed.

Avoid wearing loose fitting clothing

or jewelry which could be caught

by moving parts.

HAZARD

Lifting a very heavy object.

RISK FROM LIFTING

WHAT COULD HAPPEN

Serious injury can result from at-

tempting to lift too heavy an object.

HOW TO PREVENT IT

The generator is too heavy to be

lifted by one person. Obtain

assistance from others before you

try to move it.

MGP-670041 8 -- ENG

CARTON CONTENTS

1 - Generator

1 - Parts Box

1 - Handle

- Parts Bag

"1 - Twlstlock Plug L5-2OP

1 - Owner's Manual

"1 - Twlstlock Plug L14-20P

To be installed and/or used in

accordance with appropriate local electrical codes

and regulations. Refer to enclosed instructions for

proper installation.

_2 - Wheels

2 - Bracket

2 - Shoulder

Bolts

_l-Foot Bracket

2 - Handle Caps

1 - Isolator Foot 7 - 5/16-18 x 3/4"

CapScrews

(6 used)

2 - 5/16-18 x 1 3/4 "

Cap Screws

9 - 5/16-18

Lock Nuts

2 - Washers 2 - 318-16

Lock Nuts

Read owner's manual. Do not attempt to operate equipment until you have read Owner's

Manual for Safety, Assembly, Operation, Maintenance, Storage Instructions.

NOTE: Left and right describes the location of a part

with the operator facing the outlet panel,

TOOLS NEEDED FOR ASSEMBLY

1- Box Cutter or Knife

2 - 1/2" Wrenches

2 - 9/16" Wrenches

1 - 1" thick x 1' square piece of wood

REMOVE GENERATOR FROM CARTON

* Open carton from top.

• Cut carton along dotted lines.

• Remove all carton inserts.

• Remove generator through opening in carton.

IMPORTANT: Before any attempt to start your genera-

tor be sure to check engine oil (See Adding Engine Oil

paragraph in the Operation section on page 13 of this

manual.)

9 -- ENG MGP-670041

GROUNDING THE GENERATOR

A grounding lug is supplied with the generator for use

when required by local electrical ordinances. Refer to

article 250 of the National Electrical Code to clarify

any needed grounding information. Your local electric

company or a certified electrician should be able to

help you with this information.

NOTE: Your engine is already grounded to the frame

by a grounding strap.

Grounding Lug

INSTALLING WHEEL KIT

The Craftsman Wheel Kit was designed to greatly

improve the portability of your generator.

Drain gas and oil before

assembling the port;ability

kit. Failure to do so will cause damage to the

engine.

NOTE: Always follow state regulations for proper oil

disposal.

• Place generator on level ground; qrain all gas and

oil from the engine (see engine manual for correct

procedure).

• Place a 1" thick x 1' square piece of wood on the

ground in front of the engine. With the help of

another person, tilt the generator and rest the

recoil starter on the wood. NOTE: This wil!

support the gasoline engine during assembly and

make assembly easier.

• Place a handle cap (7) onto each end of handle

prior to installation.

• The handle should be installed on the electrical

outlet end of the generator. Place one washer

(12) on long cap screws (11). Align the handle

brackets with the upper holes pre-drilled in the

generator frame. Place mentioned screws through

frame and handle brackets. Secure with lock nuts

(8) and tighten.

Locate the engine support. Place one wheel

bracket (4) on top of support as shown in illustra-

tion. Align with the pre-drilted holes in support.

Place 2 cap screws (9) through holes in bracket

and support. Secure with 2 lock nuts (8) and

tighten.

Insert one shoulder bolt (2) into wheel (1). Insert

threaded end of bolt through wheel bracket,

secure with lock nut (3) and tighten. NOTE: The

wheel will not rub frame if installed properly.

Repeat the above steps for the opposite side.

Insert the threaded stud of rubber foot (10)

through the middle hole of the foot bracket (5).

Secure with lock nut (8) and tighten.

Locate the support under the electrical outlet end

of the generator. Position foot bracket (5), with

rubber foot installed, under the support and align

the holes in the foot bracket (5) with the slots in

the support. Place one cap screw (9) through

each slot in the support and the holes in the foot

bracket. Secure with the lock nuts (8) and tighten.

Once completed, the wheel kit is ready for use.

MGP-670041 10- ENG

KNOW YOUR GENERATOR

I Read this Owner's Manual and Safety Rules before operation of your Generator, Compare this illustra-

tion with your generator to familiarize yourself with the location of various controls and adjustments. Save the

manual for future references.

FOUR FUEL TANK

CIRCUIT

BREAKERS FUEL CAP

MUFFLER

SPARK PLUG_

AIR CLEANER "

FUEL VALVE

LEVER

CHOKE

CONTROL

ENGINE ON/OFF

SWITCH

(notshown)

120 VOLT

DUPLEX --

RECEPTACLE FUEL SHUT OFF VALVE

(not shown)

120 VOLT 3-PRONG

TWISTLOCK

RECEPTACLE

240 VOLT4-PRONG

TWlSTLOCK

RECEPTACLE

FULL POWER

SWITCH

FUEL TANK- Capacity of 7 US gallons/26.5 Liters.

CHOKE CONTROL- Used to start cold engine.

ENGINE ON/OFF SWITCH- Sets engine in starting

mode for recoil starter - Stops running engine.

FUEL VALVE LEVER (located on engine) - Used to

shut off the flow of fuel to the engine.

FUEL SHUT OFF VALVE (located under gas tank) -

Used to shut off the flow of fuel to the engine.

ENGINE OIL FILL- Check and fill engine with oil.

AIR CLEANER- Includes filter element cartridge and

foam pre-cleaner that limits the amount of dirt that

enters the engine.

FULL POWP2R SWITCH - Allows the operator to dis-

tribute power across the outlets.

FILL

ENGINE OIL DRAIN

CIRCUIT BREAKER- Each receptacle has a circuit

breaker to protect the generator from overloading.

120 VOLT RECEPTACLES- Used to supply 4250

watts of electrical power per receptacles when the

Full Power Switch is in the 120V position and 2125

watts with the Full Power Switch in the 120/240V

position. Protected by 15 amp circuit breaker.

240 VOLT TWlSTLOCK RECEPTACLE - Used to

supply 4250 watts of electrical power per receptacles

when the Full Power Switch is in the 120V position

and 4250 watts with the Full Power Switch is in the

120/240V position. Protected by 15 amp circuit

breaker.

11 -- ENG MGP-67CO41

RECEPTACLES

Your generator is equipped with:

• one 120 volt duplex receptacle protected by a 15

amp circuit breaker

• one 120 volt 3-prong twistlock receptacle pro-

tected by a two 15 amp circuit breakers

• one 240 volt 4-prong twistlock receptacle pro-

tected by two 15 amp circuit breakers

The circuit breakers are provided to protect the

generator against electrical overload. If the circuit

breaker trips, unplug electrical load from receptacle.

Let circuit breaker cool clown and then push circuit

breaker button to reset.

FULL POWER SWITCH

When placed in the 120V position it allows you to

receive the full capacity of the generator by using all

120 volt receptacles. When in the 120/240 position,

you will only be able to receive 2125 watts when using

the 120 volt receptacles and the full 4250 watts when

using the 240 4-prong twistlock receptacle.

Full Power Switch in the 120V/240V position

NEMA 5-20R

Duplex

2125 Watts

120V 15A 12OV 24OV 15A

NEMA LS-2OR . ®

3-prong 4-prong

Twistlock Twistlock

2125 Watts 4250 Watts

r-i

120V 120/240V

Full Power Switch in the 12OV position

120V 15A 12OV 240V tSA

0@@0

® . ®

NEMA 5-20R

3-prong 4-prong

Duplex Twistlock Twistlock

4250 Watts Surge

2125 continuos 4250 Watts surge together

2125 Watts continuous together

No 240V available

12OV 12(_240V

LOW OIL SHUTDOWN

Your Craftsman generator engine is equipped with Low

Oil Shutdown. Low Oil Shutdown is a safety device

designed to protect your engine from damage in the

event the oil level in the crankcase is low.

If while the engine is running, the oil gets low, it will

automatically shut itself down and will not restart until

the oil is added. If the oil is low before start-up, the

generator will not start until oil is added.

NOTE: The Low Oil Shutdown mechanism isvery sensi-

tive. You must fill the engine to the full mark on the dip-

stick to inactivate this safety device.

GENERATOR CAPACITY

Exceeding the rated capacity of your generator can

result in serious damage to your generator and con-

nected electrical devices. You should observe the

following to prevent overloading the unit:

• Starting and running wattage requirements should

always be calculated when matching a generators

wattage capacity to the appliance or tool.

• There are two types of electrical appliances that

can be powered by your generator:

Items such as radios, light bulbs, television

sets, and microwaves have a "resistive load".

Starting wattage and running wattage are the

same.

Items such as refrigerators, air compressors,

washer, dryer, and hand tools that use an

electrical motor have an "inductive load".

Inductive load appliances and tools require

approximately 2 to 4 times the listed wattage

for starting the equipment. This initial load

only lasts for a few seconds on start-up but is

very important when figuring your total watt-

age to be used.

MGP*670041 12 -- ENG

NOTE: Some inductive appliances and tools will list

on the motor name plate, the starting and running

voltage and amperage requirements. Use the following

formula to convert voltage and amperage to wattage:

(Volts X Amp = Watts)

• Always start your largest electric motor first, and

then plug in other items, one at a time.

NOTE: On 120-volt loads the maximum starting watt-

age should NOT exceed one half of the rated generator

wattage. Example: a 4250 rated wattage generator =

2125 maximum starting wattage.

The guide is provided to assist you in determining the

appliances and tools that can be ran with the wattage

capacity of your generator.

OBTAINING ELECTRICITY FROM

GENERATOR

There are basically two ways to obtain electricity from

a generator:

• Use of extension cords directly from the genera-

tor to the appliance, lights, tools, etc.

• Use of a double-throw transfer switch installed

directly to the main electrical supply outside of

the house.

Extension Cord

When using an appliance or tool at a considerable

distance from the generator, a 3-wire extension cord

that has a 3-blade grounding plug and a 3-slot

receptacle that accepts the tool's plug MUST be

used in order to reduce the risk of electrical shock. A

cord of adequate size must be used. A minimum of 12

gauge wire size with at least a 20 amp draw can be

used. When amperage exceeds 20 amps a 10 gauge

wire size should be used.

on cord that is hot

touch is overloaded.

Repair or replace damaged extension cords

immediately.

Connecting Generator To Main Electrical

Supply

Potential hazards exist when a electrical generator is

connected to the main electrical supply coming into

the house. It is at that point that the generator could

feed back into the utility company's system causing

possible electrocution of workers who are repairing

electrical lines. To avoid back feeding of electricity into

utility systems, a double-throw transfer switch

should be installed between the generator and utility

power. This device should be installed by a licensed

electrician and in compliance with all local electrical

codes.

NOTE: When installing a Double-ThrowTransfer

Switch, a minimum of 10 gauge wiring must be used.

13 -- ENG MGP-670041

BEFORE STARTING ENGINE

_Always check engine oil level

before every start. Running

engine low of oil or out of oil could result in

set ous damage to the engine.

Adding Engine Oil

Your generator has been shipped without oil in the

engine.

To add oil:

• Remove the filler cap/dipstick.

• Fill to the edge of the oil filler hole. Oil capacity is

37.1 ounces/1.1 liters.

• Replace filler cap/dipstick and tighten securely.

Filler Cap/Dipstick

Full

Never fill fuel tank indoors.

Never fill fuel tank when engine is running or

hot. Do not smoke when filling fuel tank.

To Start Your Generator

Never run engine indoors or

in enclosed, poor ventilated areas. Engine

exhaust contains carbon monoxide, an odor-

less and deadly gas.

Open the fuel shut-off valve located under the gas

tank. Turn counter clockwise until the valve stops.

Move fuel valve lever to ON position.

Lower Limit

SAE 10W-30 (4 stroke automotive detergent oil) is

recommended for general use. Other viscosities

shown in the chart may be used when the average

temperature in your area is within the recommended

range.

II El]!

Upper Limit

-20 0

I K I I I I I I

*30 -20 -10 0 t0 20 30 40"C

AMBIENT TEMPERATURE

The SAE oil viscosity and service classifications are in

the API label on the oil container. API SERVICE

category SF or SG oil is recommended.

Gasoline

Remove gas cap.

Add unleaded gasoline with a pump octane rating

of 86 or higher, slowly, to fuel tank. Do not mix oil

with gasoline.

Never fill fuel tank com-

pletely. Fill tank to 1/2" below the bottom of the

filler neck to provide space for fuel expansion.

Wipe any fuel spillage from engine and equip-

ment before starting engine.

• Do not overfill.

• Move choke control lever to CLOSED position.

NOTE: To restart a warm engine, move choke control

to OPEN position.

CHOKE

OPEN

• Turn engine switch to ON position.

MGP-670041 14 -- ENG

You MUST unplug any load

from the generator before starting to prevent

permanent damage to any appliances.

Pull starter grip slowly until you feel resistance,

then pull briskly. Return starter grip gently. Pull

rope with a rapid full arm stroke. Let rope rewind

slowly. Repeat if necessary.

Starter Grip

NOTE: IF ENGINE OIL LEVEL IS TOO LOW, EN-

GINE WILL NOT START. CHECK OIL LEVEL AND

ADD IF NECESSARY.

• If choke control lever is in CLOSED position, move

lever to OPEN position as engine warms up.

IMPORTANT: Allow generator to run at no load for 5

minutes upon each initial start-up to allow engine and

generator to stabilize.

STOPPING ENGINE

• Disconnect all electrical loads.

• Turn engine switch to "OFF" position.

• Close fuel shut-off valve located under gas tank.

IMPORTANT: Never store engine with fuel in tank,

indoors, or in enclosed, poorly ventilated areas or

where fuel fumes may reach an open flame.

CONNECTING ELECTRICAL LOADS

• Let engine run and warm up for five minutes after

starting with no electrical load.

Connect loads in the following manner to prevent

damage to equipment:

Connect inductive load equipment first, inductive

loads consist of refrigerators, freezers, water

pumps, air conditioners, or small hand tools.

Connect the items that require the most wattage

first.

Connect the lights next.

Voltage sensitive equipment should be the last

equipment connected to the generator. Plug

voltage sensitive appliances such at "IV's, VCR's,

microwaves, ovens, computers, and cordless

telephones into a UL listed voltage sbrge protec-

tor, then connect the UL listed voltage surge

protector to the generator.

IMPORTANT: You should always add up the rated

watts of all lights, tools and appliances you are

powering at one time. This total should not

exceed the rated capacity of you generator or

circuit breaker rating of the receptacle supplying

power.

Move the fuel valve lever to the "OFF" position.

Fuel

Valve

Lever

15 -- ENG MGP-67CO4_

CUSTOMER RESPONSIBILITIES TABLE

Perform task at every indicated

month or operating hour

interval, whichever comes first.

MAINTENANCE TASK

Engine Oil Check

Change

Air Filter Check

Clean

Replace

Sediment cup Clean

Check Spark Plug Clean-Readjust

Replace

Clean

Before

each

use

First month or

every 20 Hrs.

Every 3 months

or 50 Hrs.

Every 6 months

or 100 Hrs.

x (1)

Every year or

300 Hrs.

X _

Every 2 years (Replace if necessary) (2)

Prepare unit for storage if it is to remain idle for more than 30 days.

Service more frequently when used in dusty areas.

These items should be service by your authorized service dealer.

Replace the paper air filter element only.

Spark arrester X (2)

(optional part)

Fuel line Check

Prepare Unit for Storage

GENERAL RECOMMENDATIONS

The warranty of the generator does not cover items

that have been subjected to operator abuse or negli-

gence. To receive full value from the warranty, opera-

tor must maintain the generator as instructed in this

manual.

Some adjustments will need to be made periodically to

maintain your generator.

GENERATOR MAINTENANCE

Your generator should be kept clean and dry at all

times. The generator should not be stored or oper-

ated in environments that include excessive moisture,

dust or any corrosive vapors. If these substances are

on the generator, clean with a cloth or soft bristle

brush. Do not use a garden hose or anything with

water pressure to clean the generator. Water may

enter the cooling air slots and could possibly damage

the rotor, stator and the internal windings of the

generator head.

All adjustments in the Maintenance section of this

manual should be made at least once each season.

ENGINE MAINTENANCE

Improperly maintaining this

engine, or failure to correct a problem before

operation, can cause a malfunction in which

you can be seriously hurt or killed.

Always follow the inspection and maintenance

recommendations and schedules in this

owner's manual.

MGP-670041 16 -- ENG

Oil

• Oil level should be checked prior to each use and

at least every 5 hours of operation.

To check oil:

• Remove the filler cap/dipstick and wipe it clean.

• Insert and remove the dipstick without screwing it

into the filler neck. Check the oil level shown on

the dipstick,

• If the oil level is tow, fill to the edge of the oil filler

hole with the recommended oil. See the Adding

Oil paragraph on page 14 of this manual.

• Screw in the filler cap/dipstick securely.

edge of the oil filler hole with the recommended

oil. See the Adding Oil paragraph on page 14 of

this manual.

Air Filter

A dirty air filter will restrict air flow to the carburetor,

reducing engine performance. If you operate the

engine in very dusty areas, clean the air filter more

often than specified in the Owner's Responsibilities

• Remove the wing nut from the air cleaner cover,

and remove the cover.

Air Cleaner Cover,

ap/Dipstick

Upper Limit

o O

Changing Engine Oil

For a new engine, change oil after the first 20 operat-

ing hours. Thereafter, change oil after every 100

hours of operation.

Change the oil while the engine is still warm. The oil

will flow freely and carry away more impurities. Make

sure the engine is level when filling, checking or

changing oil.

Change the oil as follows:

• To keep dirt, grass clippings, etc. out of the

engine, clean the area around the drain plug and

dipstickbefore removing it.

• Place a suitable container below the engine to

catch the used oil, then remove the filler cap/

dipstick and the drain plug.

• _ IJ /

\ _._-_4_ ./" Filler Cap/

oipst,ck

Dr&in_" Level

Plug

Allow the used oil to drain completely, then

reinstall the drain plug, and tighten it securely.

Please dispose of used motor oil in a manner that

is compatible with the environment. We suggest

you take used oil in a sealed container to your

local recycling center or service station fro recla-

mation. Do not throw it in the trash, pour it on the

ground, or down a drain.

With the engine in a level position, fill to the outer

17 -- ENG

Paper Filter

Element _

Foam Filter

Element

Gasket

Remove the wing nut from the air filter and remove

the filter.

Remove the foam filter from the paper fitter.

Inspect both air filter elements and replace them if

the are damaged. Always replace the paper air

filter element at the scheduled interval. See

Customer's Responsibilities on page 16 of this

manual

Clean the air filter elements if they are to be

reused.

To clean the paper element:

• Tap the filter element several times on a hard

surface to remove dirt, or blow compressed

air (not exceeding 30 psi, 207kPa, 2.1kg/cm 2)

through the filter element from the inside.

Never try to brush off dirt; brushing with force

dirt into the fibers.

To clean the foam air filter element:

Clean in warm in warm soapy water, rinse, and

allow to dry thoroughly. Or clean in nonflam-

mable solvent and allow to dry. Dip the filter

element in clean engine oil, then squeeze out

all excess oil. The engine will smoke when

started if too much oil is left in the foam.

MGP-670041

• Wipe dirt from the inside of the air cleaner base

and cover, using a moist rag. Be careful to

prevent dirt from entering the air duct that leads

to the carburetor.

• Place the foam air filter element over the paper

element, and reinstall the assembled air filter. Be

sure the gasket is in place beneath the air filter.

Tighten the air filter wing nut securely.

• Install the air cleaner cover, and tighten the cover

wing nut securely.

Sediment Cup Cleaning

• Move the fuel valve lever to the "OFF" position,

then remove the fuel sediment cup and O-Ring.

Fuel Valve

Lever

OFF

Gasoline is highly flam-

mable and explosive.

You can be burned or seriously injured when

handling fuel.

• Keep heat, sparks, and flame away.

• Handle fuel only outdoors.

• Wipe up spills immediately.

-- ) O':_nnumg;nt

• Wash the sediment up and O-Ring in nonflam-

mable solvent, and dry them thoroughly.

• Place the O-ring in the fuel valve, and install the

sediment cup. Tighten the sediment cup securely.

• Move the fuel valve to the "ON" position and

check for leaks. Replace the O-ring if there is any

leakage.

Clean and Replace Spark Plug

Check spark plug yearly or every t00 operating hours.

• Clean area around spark plug.

• Remove and inspect spark plug.

• Replac e spark plug if electrodes are pitted, burned

or porcelain is cracked.

• Check electrode gap with wire feeler gauge and

set gap .030 if necessary.

• Install spark, tighten securely.

.030" (0.76MM)

Spark Plug

CARBURETOR

The carburetor of your generator is pre-set at the fac-

tory. The carburetor should net be tampered with. If your

generator is used at an altitude in excess of 4000 feet

performance may be affected. If so consult with your

nearest Sears Service Center regarding high altitude set

changes.

GOVERNOR

Your engine governor maintains the constant operating

speed of your generator. DO NOT tamper with the en-

gine governor which is factory set for proper engine

speed.

Over-speeding your engine above factory high speed set-

ting can be dangerous and could possibly cause per-

sonal injury or property damage. If you believe the en-

gine is running too fast or slow, take your generator to a

Authorized Sears Service Center for repair and adjust-

ment.

Low engine speeds impose a I

heavy load on the engine and

when sufficient power is not available the engine

fe cou d be shortened.

MGP-67004_ 18 -- ENG

If you are going to store your generator for more than

30 days, use the following information as a guide to

prepare the generator for storage.

Never store generator with

in the tank indoors or in

enclosed, poorly ventilated areas, where fumes

can reach an open flame, spark or pilot light as

on a furnace, water heater, clothes dryer or

other gas appliances.

Engine Preparation

• Add fuel stabilizer to fuel tank to minimize the

formation of fuel gum deposits during storage.

• Run engine at least 10 minutes after adding

stabilizer to allow it to enter the fuel system.

• Disconnect the spark plug wire and remove the

spark plug.

• Add one teaspoon of oil through the spark plug

hole.

• Place rag over spark plug hole and pull the recoil a

few times to lubricate the combustion chamber.

Replace the spark plug, but do not connect the

spark plug wire.

NOTE: If a fuel stabilizer is not used, all gasoline must

be drained from the tank and carburetor to prevent gum

deposits from forming on these parts and causing pos-

sible malfunction of the engine.

Generator

Clean the generator as outlined in the Generator

Maintenance paragraph on page 16.

Check that cooling air slots and openings on

generator are open and unobstructed.

PROBLEM

Engine will not start

No electrical output

CAUSE

1. Low on fuel or oil

2. Ignition switch in "Off" position.

3. Faulty spark plug.

4. Choke in wrong position.

5. Fuel shut-off valve in closed

position.

6. Unit loaded during start-up.

7. Spark plug wire loose.

1. Faulty receptacle.

2. Circuit breaker kicked out.

3. Defective capacitor.

4. Faulty power cord.

1. Overload

2. Faulty cords or equipment.

CORREC_ON

1. Add fuel or oil.

2. Turn to "ON" position

3. Replace spark plug.

4. Adjust choke accordingly.

5. Open fuel shut-off valve.

6. Remove load from unit.

7. Attach wire to spark plug.

1. Have Authorized Sears Service

Center replace.

2. Depress and reset.

3. Have Authorized Sears Service

Center replace capacitor.

4. Repair or replace cord.

Repeated circuit breaker trip- 1. Reduce load.

ping 2. Check for damaged, bare, or

frayed wires on equipment.

Replace.

Generator overheating the 1. Generator overloaded. 1. Reduce toad.

circuit breaker depressed 2. Insufficient ventilation.

2. Move to adequate supply of

fresh air.

19 -- ENG MGP-610041

CRAFTSMAN 4250 GENERATOR 919.670040 GENERATOR ASSEMBLY

TORQUE 96-120 IN-LBS

KEY

NO,

DESCRIPTION PART NUMBER

FUELTANK GS-0795

FUEL TANK SCREWS 91895680

WASHER SSN-632

FUEL CAP GS-0443

FRAME ASSEMBLY GS-0909

PANELASSEMBLY GS-0844

ISOLATOR GS-0433

FUEL HOSE GS-0225

HEATSHIELD GS-0675

ISOLATOR GS-0033

LOCK NUT 5/16-18 SSF-8150

SCREW 5/16-18 x 1 SSF-605

LOCK WASHER SSN-1619-ZN

SCREW 5/16-18 x 3/4 SS-12-CD

GROUND STRAP GS-0118

ENGINE (model # GX270VWN2)

HOSE CLAMP .301 ID GS-0560

UNION REDUCER 1/4 TO 3/8 GS-0535

SCREW 1/4 x 5/8 39124607

LOCK WASHER SS-1503-CD

* SEE ENGINE PAGES 27-36

MGP-670041 20 -- ENG

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Craftsman 919.670040 Owner's manual

Brand: Craftsman

Model: 919.670040

Category: Power generators

Type: Owner's manual

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