Craftsman 917377911 User Manual 6.75HP 21 ROTARY LAWN MOWER Manuals And Guides L9090354

CRAFTSMAN Walk Behind Lawnmower, Gas Manual L9090354 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

User Manual: Craftsman 917377911 917377911 CRAFTSMAN CRAFTSMAN 6.75HP 21 ROTARY LAWN MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN CRAFTSMAN 6.75HP 21 ROTARY LAWN MOWER #917377911. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman CRAFTSMAN 6.75HP 21 ROTARY LAWN MOWER Manual

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Owner's Manual

£RI:IFTSMI:IN
o
6.75 HORSEPOWER
21" MULTI-CUT
POWER PROPELLED
ROTARY LAWN MOWER
Model No.
917.377911

•
•
•
•
•
•

Safety
Assembly
Operation
Maintenance
Espahol
Repair Parts

CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears,

Roebuck

and Co., Hoffman

Estates,

Visit our Craftsman website: www.sears.com/craftsman

IL 60179

Warranty
Safety Rules
Assembly
Operation
Maintenance
Maintenance

LIMITED

2
2
4
6
11
11

Schedule

TWO YEAR WARRANTY

Product Specifications
Service and Adjustments
Storage
Troubleshooting
Repair Parts
Parts Ordering

ON CRAFTSMAN

POWER

12
15
16
17
38
Back Cover

MOWER

For two years from date of purchase, when this Craftsman Lawn Mower is maintained,
lubricated, and tuned up according to the operating and maintenance
instructions in the
owner's manual, Sears will repair free of charge any defect in material or workmanship.
If this Craftsman Lawn Mower is used for commercial
or rental purposes, this warranty
applies for only 90 days from the date of purchase.
This Warranty does not cover:
Expendable
items which become worn during normal use, such as rotary mower
blades, blade adapters, belts, air cleaners and spark plug.
Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain the equipment according to the instructions contained in the owner's manual.
Warranty service is available by returning the Craftsman power mower to the nearest
Sears Service Center/Department
in the United States. This warranty applies only while
this product is in use in the United States.
This Warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
SEARS, ROEBUCKAND
CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179

Safety standards require operator presence controls to minimize the risk of injury.
Your unit is equipped with such controls.
Do not attempt to defeat the function of the
operator presence controls under any
circumstances.
TRAINING:

Always have damage repaired before using
your mower.
Do not use accessory attachments that are
not recommended by the manufacturer.
Use of such attachments may be hazardous.
• The blade tums when the engine is running.

• Read this operator's manual carefully.
Become familiar with the controls and know

PREPARATION:
• Always thoroughly check the area to be
mowed and clear it of all stones, sticks,
wires, bones, and other foreign objects.
These objects will be thrown by the blade
and can cause severe injury.
• Always wear safety glasses or eye shields
when starting and while using your mower.
• Dress properly. Do not operate mower
when barefoot or wearing open sandals.
Wear only solid shoes with good traction
when mowing.

how to operate your mower properly. Le_m
how to quickly stop mower.
• Do not allow children to use your mower.
Never allow adults to use mower without
proper instructions.
• Keep the area of operation clear of all
persons, especially small children and pets.
• Use mower only as the manufacturer
intended and as described in this manual.
• Do not operate mower if it has been
dropped or damaged in any manner.

2

• Check fuel tank before starting engine. Do
not fill gas tank indoors, when be engine is
running or when the engine is hot. Allow the
engine to cool for several minutes before
tilling the gas tank. Clean off any spilled
gasoline before sta_ng the engine.
• Always make wheel height adjustments
before starting your mower. Never attempt
to do this while the engine is running.
• Mow only in daylight or good artificial light.

• Never cut grass by pulling the mower
towards you. Mow across the face of
slopes, never up and down or you might
lose your footing. Do not mow excessively
steep slopes. Use caution when operating
the mower on uneven terrain or when

OPERATION:

MAINTENANCE AND STORAGE:

• Keep your eyes and mind on your mower
and the area being cut. Do not let other
interests distract you.
• Do not mow wet or slippery grass. Never
run while operating your mower. Always be
sure of your footing - keep a firm hold on the
handles and walk.

• Check the blade and the engine mounting
bolts often to be sure they are tightened
properly.
• Check all bolts, nuts and screws at frequent
intervals for proper tightness to be sure
mower is in safe working condition.
• Keep all safety devices in place and
working.
• To reduce tire hazard, keep the engine free
of grass, leaves or excessive grease and oil.
• Check grass catcher often for deterioration
and wear and replace wom bags. Use only
replacement bags that are recommended
by and comply with specifications of the
manufacturer of your mower.
• Always keep a sharp blade on you_ mower.
• Allow engine to cool before storing in any
enclosure.
• Never store mower with fuel in the tank

• DO not put hands or feet near or under
rotating parts. Keep clear of the discharge
opening at all times.
• Always stop the engine whenever you leave
or are not using your mower, or before
crossing driveways, walks, roads, and any
gravel-covereld' areas•
• Never direct discharge of material toward
bystanders nor allow anyone near the
mower while you are operating it.
• Before cleaning, inspecting, or repairing
your mower, stop the engine and make
absolutely sure the blade and all moving
parts have stopped. Then disconnect the
spark plug wire and keep it away from the
spark plug to prevent accidental starting.
Do not continue to run your mower if you hit
aforeign object. Followthe procedure
o_ined above, then repair any damage
before restarting and operating your mower.
• DO not change the govemor settings or
overspeed the engine. Engine damage or
personal injury may result.
• Do not operate your mower if it vibrates
abnormally. Excessive vibration is an
indication of damage; stop the engine,
safely check for the cause of vibration and
repair as required.
• Do not run the engine indoors. Exhaust
fumes are dangerous.

changing directions - maintain good footin 9.
• Never operate your mower without proper
guards, plates, grass catcher or other safety
devices in place.

inside a building where fumes may reach an
open flame or an ignition source such as a
hot water heater, space heater, clothes
dryer, etc.
A

_Look
for this symbol to point out
important saraty precautions.
It means
CAUTION!!!
BECOMEALERT!!!
YOUR
SAFETY IS INVOLVED.

._LgCAUTION:
Always
spark
wire and place
wiredis.connect
wnere it cannot
contact spark plug in order to prevent
accidental starting when setting up,
transporting,
adjusting or making repairs.

_IkWARNING:
The engine exhaust from
this product contains chemicals known to
the State of California to cause cancer,
birth defects, or other reproductive
harm.

3

shipped
centers.
number
LAWN

.=available when this lawn mower was
' are not
with your mower. They are also available at most Sears retail outlets and service
Most Sears stores can also order repair parts for you, when you provide the model
of your lawn mower. Some of these accessories may not apply to your lawn mower.
MOWER PERFORMANCE

CUPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS

FOR
REAR DISCHARGE
GRASS
LAWN CATCHERS
MOWERS

_

MULCHER KITS

STABILIZER

FOR
SIDE DISCHARGE
GRASS
LAWN CATCHERS
MOWERS

_

GAS CANS

LAWN

MOWER

MAINTENANCE

MUFFLERS

BELTS

AIR FILTERS

BLADES

BLADE ADAPTERS

Read these instructions and this manual

in

SPARK PLUGS

WHEELS

ENGINE OIL

• Remove all packing materials
padding between upper and
handle and padding holding
presence control bar to upper
• Roll lawn mower out of carton

its entirety before you attempt to assemble
or operate your new lawn mower.
IMPORTANT:
This lawn mower is shipped
WITHOUT OIL OR GASOLINE
in the
engine.
Your new lawn mower has been as-

carton thoroughly
parts.

sembled at the factory with the exception of
those parts left unassembled
for shipping
purposes.
To ensure safe and proper
operation of your lawn mower, all parts and
hardware you assemble must be tightened
securely. Use the correct tools as necessary to ensure proper tightness. All parts
such as nuts, washers, bolts, etc., necessary to complete the assembly have been
placed in the parts bag.

except
lower
operator
handle.
and check

for additional

loose

HOWTO SET UPYOUR LAWN
MOWER
TO UNFOLD

HANDLE

IMPORTANT:
Unfold handle carefully so
as not to pinch or damage control cables.
• Raise lower handle section to operating
position and squeeze the bottom ends of
lower handle towards each other until
the pin in handle can be inserted into
one of the three height adjustment holes.
• Remove protective padding, raise upper
handle section into place on lower
handle and tighten both handle knobs.
• Remove any packing material from
around control bar.

TO REMOVE LAWN MOWER FROM
CARTON
• Remove loose parts included with
mower.
• Cut down two end corners of carton and
lay end panel down flat.

4

• Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments
section of this manual.
Operator presence
control bar
Upper handle

TO INSTALL ATTACHMENTS
Your lawn mower was shipped ready to be
used as a mulcher. To convert to bagging
or discharging; See OPERATION section
of this manual.

Lift up

Lift up

Lower
handle

Mowing
position

Handle
pin
3-position
Handle
adjustment
bracket

5

KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWN
MOWER. Compare the illustrations with your lawn mower to familiarize yourself with the
location of various controls and adjustments. Save this manual for future reference.
These symbols may appear on your lawn mower or In literature supplied with the
product. Learn and understand their meaning,

CAUTION
ENGINE
OR WARNING
ON

ENGINE
OFF

FAST

SLOW

CHOKE

FUEL

OIL

DANGER, KEEP HANDS
AND FEET AWAY

Operator presence control bar

Drive

Speed control lever

Starter
Cable clip

Grass catcher

Gasoline cap

Wheel adjuster
lever
Primer

Mulcher
plug
Engine oil cap w/dipstick
Mulcher door
IMPORTANT:

This lawn mower is shipped

without oil or gasoline in the en_line.
MEETS CPSC SAFETY REQUIREMENTS

Housing

Sears rotary walk-behind power lawn mowers conform to the safety standards of the
American National Standards Institute and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running.
Drive control bar - used to engage
power-propelled
foward motion of lawn
mower.
Mulcher plug - Located at the rear
discharge opening must be removed
when converting to bagging operation.

Operator presence control bar - must
be held down to the handle to start the
engine.
Release to stop the engine.
Primer - pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.
Starter handle - used for starting the
engine.

6

The operation of any lawn mower can result in
foreign objects brown into the eyes, which can
result in severe eye damage. Always wear
safety glasses or eye shields while operalJng
your lawn mower or performing any adjustments or repairs. We recommend a wide
vision safety mask over spectacles or standard
safety glasses.
HOWTO USEYOUR
LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory for
optimum performance.
Speed is not adjustable.
ENGINE ZONE CONTROL

TO OPERATE

DRIVE

SYSTEM

• With engine running, select ground
speed by moving speed control lever to
desired position.
• To start forward motion, pull drive
control bar back against handle.
• To stop forward motion, release drive
control bar.
IMPORTANT:
Always keep drive control
bar fully engaged against handle when in
use.
Speed control
lever

4MiCAUTION:
Federal regulations r.equire
an engine control to be installed on this lawn
mower in order to minimize the risk of blade
contact injury. Do not under any
circumstances attempt to defeat the function
of the operator control. The blade tums when
the engine is running.
• Your lawn mower is equipped with an
operator presence control bar which
requires the operator to be positioned
behind the lawn mower handle to start and

Operator presence
Drive control

control bar

operate the lawn mower.
TO ADJUST CUTTING HEIGHT
• All four wheels are adjusted by a single
lever.

Drive o

2.

disengaged

• Pull adjuster lever toward wheel. To raise
mower, move lever forward to desired
position. To lower mower, move the lever
toward the rear.

TO CONVERT

MOWER

Your lawn mower was shipped ready to be
used as a mulcher. To convert to begging or
discharging:

Lower Wheels for high cut

REAR BAGGING• Open rear door and remove mulcher plug.
Store mulcher plug in a safe place.
• To convert to mulching or discharging
operation, install mulcher plug into rear
discharge opening of mower.

Raise Wheels for low cut
GROUND

DRIVE SPEEDS

SIDE DISCHARGING-

Your lawn mower provides multiple speeds
to let you select the speed that suits you
best.

Rear door must be open.
• Open mulcher door and install discharge
deflector under guard as shown.
• Mower is now ready for discharging
operation.
• To convert to mulching or bagging operation, discharge deflector must be removed
and mulcher door must be closed.

• Lower speeds are for slow, heavy/thick
grass cutting or trimming.
• Medium speeds are for normal grass
cutting or trimming.
• High is for light cutting and for ground
transport.
NOTE: Do not move speed control lever
unless the engine is running

7

SIMPLE STEPS TO REMEMBER
_CAUTION:
Do not run your lawn mower
without rear mulcher plug or approved grass
catcher in place. Never attempt to operate the
lawn mower with the rear door removed or
propped open..

WHEN CONVERTING YOUR LAWN
MOWER
FOR MULCHING

-

• Rear mulcher plug installed.
• Mulcher door closed.

Rear door
slots

FOR REAR BAGGING • Rear mulcher plug removed.
• Grass catcher installed.
• Mulcher door dosed.
FOR SIDE DISCHARGING

Grass
catcher
handle

Catcher frame

-

hook

• Rear mulcher plug installed.
• Side discharge deflector installed.
CAUTION:
Do not run your lawn mower
without rear mulcher plug in place or approved
grass catcher in place.
Never attempt to operate the lawn mower with
the rear door removed or propped open.

TO EMPTY GRASS CATCHER
• Lift up on grass catcher using the frame
handle.
• Remove grass catcher with clippings from
under lawn mower handle.
• Empty clippings from bag using both frame
handle and bag handle,
NOTE: Do not drag the bag when emptying;
it will cause unnecessary wear.

/
Mulcher plug

BEFORE STARTING ENGINE
OIL
Mulcher door

Your lawn mower is shipped without oil in the
engine.
• Be sure mower is level and area around oil
fill is clean.
• Remove engine oil cap and fill to the full
line on the dipstick.
NOTE: Allow oil to settle down into

Open
mulcher door

engine for accurate dipstick reading.
• Engine holds 20 ozs. of oil. For type and
grade of oil to use, see "ENGINE" in
Maintenance section of this manual.

Discharge deflector

• Pour oil slowly. DO not over fill.
• Check oil level before each use. Add oil if
needed. Fill to full line on dipstick.
• To read proper level, tighten engine oil cap
each time.

TO ATTACH

• Reinstall engine oil cap and tighten.
• Change the oil after every 25 hours of
operation or each season. You may need
to change the oil more often under dusty,
dirty conditions.
GAS

GRASS CATCHER

• Lift the rear door of the lawn mower and
place the grass catcher frame hooks into
the slots of the rear door.
• The grass catcher is secured to the lawn
mower housing when the rear door is
lowered onto the grass catcher frame.

8

• Fill fuel tank. Use fresh, clean, regular
unleaded gasoline with a minimum of 87

octane. (Use of leaded gasoline will
increase carbon and lead oxide deposits
and reduce valve life). Do not mix oil with
gasoline. Purchase fuel in quantities that
can be used within 30 days to assure fuel
freshness.
A0_WARNING:
Expe.dence indicates that
alcohol blended nJels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic gas
can damage the fuel system of an engine
while in storage. To avoid engine problems,
the fuel system should be emptied before
storage of 30 days or longer. Drain the gas
tank, start the engine and let it run until the
fuel lines and carburetor are empty. Use fresh
fuel next season. See Storage Instructions for
additional information. Never use engine or
carburetor cleaner products in the fuel tank or
permanent damage may occur.

TO START ENGINE
• To start a cold engine, push primer three
(3) times before trying to start. Use a firm
push. This step is net usually necessary
when starting an engine which has already
run for a few minutes.
• Hold operator presence control bar down
to the handle and pull starter handle
quickly. Do not allow starter rope to snap
back
• To stop engine, release operator presence
control bar.
NOTE: In cooler weather it may be necessary
to repeat priming steps. In warmer weather
over priming may cause flooding and engine
will net start. If you do flood engine wait a few
minutes before attempting to start and do not
repeat pdming steps.

Gasoline
Engine oil__:_

filler cap

9

MOWING TIPS

MULCHING MOWING TIPS

• For most cutting conditions and better
bagging performance, the engine speed
shouldbe setinthefast position.
• Under certainconditions,
such as when
mowing very tall grass, raise, the mower
height on the first cut to reduce pushing
effort, to avoid overheating the engine, and
to avoid leaving clumps of grass clippings.
Make the second cut to the desired height.
For extremely heavy cutting, reduce the
width of cut.

IMPORTANT:
For best performance, keep
mower housing free of built-up grass and
trash. Sea "Cleaning" in MAINTENANCE
section of this manual.

• Pores in cloth grass catchers can become
filled with dirt and dust with use and the
catcher will collect less grass. To prevent
this, regularly hose catcher off with water
and let dry before use.

• The special mulching blade will recut the
grass clippings many times and reduce
them in size so that as they fail onto the
lawn they will disperse into the grass and
not be noticed. Also, the mulched grass
will biodegrade quickly to provide nutrients
for the lawn. Always mulch with your
highest engine (blade) speed as this will
provide the best recutting action of the
blades.
• Avoid cutting your lawn when it is wet. Wet
grass tends to form clumps and interferes
with the mulching action. The best time to
mow your lawn is the early aftemoon. At
this time the grass has dried and the newly
cut area will not be exposed to the direct
SLIn.

• For best results, adjust the lawn mower
cutting height so that the lawn mower cuts
off only the top one-third of the grass
blades. If the lawn is overgrown it will be
necessary to raise the height of cut to
reduce pushing effort and to keep from
overloading the engine and leaving
dumps of mulched grass. For extremely
heavy mulching, reduce your width of cut
by overlapping previously cut path and
mow slowly.
• Certain types of grass and grass conditions
may require that an area be mulched a
second time to completely hide the
clippings. When doing a second cut, mow
across or perpendicular to the first cut path.
• Change your cutting pattem from week to
weak. Mow north to south one week then
change to east to west the next weak. This
will help prevent matting and graining of
the lawn.
l-:,_t__ _t._
:ilI f_'_4! _

10

Max 1/3

F,
LL
,N
DATES

YOU
COMPL. E
In

M
O

E

Check for Loose Fasteners
Clean/Inspect Grass Catcher
(If Equipped)
Clean Lawn Mower

_B

N_

if
If

If
iV'
I If

I,/

v'

Clean
(Power-Propelled
Under DriveMowers)
Cover
Check drive belt/pu,eys
Check/Sharpen/Replace Blade
(Power-Propelled Mowers)
LubricationChart
Clean Battery/Recharge
IElectric Start Mowers 1

_I'

3
I/

It/'

I/'4

E

Check Engine Oil Level
N Change Engine Oil
G Clean Air Filter
Inspect Muffler

V'1,2
ll/

N
E

If
ik/2

i/

Clean or Replace Spark Plug
Replace Air Filter Paper Cartridge

1 - Change
2 - Service
3 - Replace
4 * Charge

more often when operating under a heavy load or in high ambient temperatures.
more often when operating in dirty or dusty conditions.
blades more often when mowing in sandy soil,
48 hours at end of season.

GENERAL

LUBRICATION

RECOMMENDATIONS

CHART

(_ Wheel
The warranty on this lawn mower does not
cover items that have been subjected to
operator abuse or negligence. To receive full
value from the warranty, operator must
maintain mower as instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your unit.
All adjustments in the Service and Adjustments section of this manual should be
checked at least once each season.
• Once a year, replace the spark plug,
replace air filter element and check blade for
wear. A new spark plug and clean/new air
filter element assures proper air-fuel mixture
and helps your engine run better and last
longer.
• Follow the maintenance schedule in this
manual.
BEFORE EACH USE
• Check engine oil level.
• Check for loose fasteners.
LUBRICATION
Keep unit well lubricated (See "LUBRICATION
CHART").

(3) Brake spring
bracket

(3) Spray lubricant
(_) Refer to MAINTENANCE
"ENGINE" section.

IMPORTANT: Do not oil or grease plastic
wheel bearings. Viscous lubricants will
attract dust and dirt that will shorten the
life of the self lubricating bearings. If you
feel they must be lubricated, use only a
dry, powdered graphite type lubricant
sparingly.

11

PRODUCT
MODEL

NUMBER

SERIAL

NUMBER

SPECIFICATIONS
917.377911

DATE OF PURCHASE
HORSEPOWER:

6.75

GASOLINE

1.25 QUARTS

CAPACITY/TYPE:

UNLEADED
OILTYPE

(API-SF/SG/SH):

SAE 30 (ABOVE 32°F)
SAE 5W-30

(BELOW

32°F)

20 OZS.

OIL CAPACITY:
SPARK

REGULAR

PLUG(GAP:

CHAMPION

.030")

VALVE CLEARANCE:

RJ19LM

or J19LM

INTAKE:

.004 - .008

EXHAUST:

.004 - .008

SOLID STATE IGNITION
t_lR GAP:

.0125 IN.

BLADE BOLT TORQUE:
The model

and serial numbers

lawn mower housing.Record
provided above.

35-40 FT. LBS.
will be found on a decal attached
both serial

LAWN MOWER
Always observe safety rules when performing
any maintenance.
TIRES
Keep tires fTee of gasoline, oil, or insect
control chemicals which can harm rubber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may cause
tire damage.
BLADE CARE
For best results, mower blade must be
kept sharp.
Replace bent or damaged
blades.
TO REMOVE

BLADE

• Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
• Turn lawn mower on its side. Make sure
air filter and carburetor are up.
• Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
• Protect your hands with gloves and/or
wrap blade with heavy cloth.
• Remove blade bolt by turning counterclockwise.

number

to the rear of the

and date of purchase

in space

Remove blade and attaching hardware
(bolt, lock washer and hardened
washer).
NOTE: Remove the blade adapter and
check the key inside hub of blade adapter.
The key must be in good condition to work
properly.
Replace adapter if damaged.
TO REPLACE

BLADE

Position the blade adapter on the engine
crankshaft.
Be sure key in adapter and
crankshaft
keyway are aligned.
Position blade on the blade adapter
aligning the two (2) holes inthe blade
with the raised lugs on the adapter.
Be sure the trailing edge of blade
(opposite sharp edge) is up toward the
engine.
Install the blade bolt with the lock
washer and hardened washer into blade
adapter and crankshaft.
Use block of wood between blade and
lawn mower housing and tighten the
blade bolt, turning clockwise.
The recommended
tightening torque is
35-40 ft. Ibs.
IMPORTANT:
BLADE BOLT IS GRADE 8
HEATTREATED.

12

TO SHARPEN

BLADE

NOTE: We do not recommend
sharpening
blade - but if you do, be sure the blade is
balanced.
Care should be taken to keep the blade
balanced. An unbalanced
blade will cause
eventual damage to lawn mower or
engine.
• The blade can be sharpened with a file
or on a grinding wheel. Do not attempt
to sharpen while on the mower.
• To check blade balance, drive a nail into
a beam or wall. Leave about one inch of
, the straight nail exposed.
Place center
hole of blade over the head of the nail.
If blade is balanced, it should remain in
a horizontal position.
If either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
Blade
Crankadapter
shaft
Key
keyway

• If you remove the drive pinions, wipe
clean with dry cloth. Reassemble dry.
Do not lubricate. Do not use oil or
grease.
• The pinion gear, on both sides of the
mower, are the same, however, they
must be installed correctly. If installed
incorrectly, the drive system will not
work.
• There are arrows embossed on both
sides of the pinion gear. With the arrow
at the top of the pinion, the arrow must
point towards front of mower. If the
arrow points to the rear, turn the pinion
around and assemble to mower.
• Place wheels back on adjuster axles.
• Replace Iocknuts and hubcaps.
Correct

Incorrect
Wave
Washer

Blade
bolt

Pinion
E_ring

Lock
washer

Locknu
Hardened
washer

GRASS

Trailing
edge

Crankshaft

Washer

adapter

CATCHER

• The grass catcher may be hosed with
water, but must be dry when used.
• Check your grass catcher often for
damage or deterioration. Through
normal use it will wear. If catcher needs
replacing, replace only with a manufacturer approved replacement catcher.
Give the lawn mower model number
when ordering.
DRIVE WHEELS

-Hubcap
ENGINE
LUBRICATION
Use only high quality detergent oil rated with
API service classification SF, SG or SH.
Select the oil's SAlE viscosity grade according
to your expected operaUng temperature.
SAE VISCOSITY GRADES

,

Check rear drive wheels each time you
0*
30*
_2 o 40"
I_P
mow to be sure they move freely. The
.30"
*20*
,10"
0.
20,
_0 o
wheels not turning freely means trash,
"_-MPE RA_E
RA N_-A NTI C_-ATE D BEFORE N_
OIL C-HA=NGE
grass cuttings, etc., may be inside the
NOTE: Although multi-viscosity oils (5W30,
drive wheel and dust cover area and must
10W30 etc.) improve starting in cold weather,
be cleaned out to free drive wheels.
these multi-viscosity oils will result in increased
If necessary to clean the drive wheels,
oil consumption when used above 32°F.
check both rear wheels.
Check your engine oil level more frequently to
• Remove hubcaps and Iocknuts.
avoid possible engine damage from running
• Remove wheels from wheel adjuster
low on oil.
axles.
Change the oil after every 25 hours of
• Remove any trash or grass cuttings from
operation or at least once a year if the lawn
inside the dust cover, pinion and/or drive
mower is not used for 25 hours in one year,
wheel gear teeth.
13

Check the crankcase oil level before starting
the engine and after each five (5) hours of
continuous use. "Tighten oil plug securely each
time you check the oil level.
TO CHANGE ENGINE OIL
NOTE: Before tipping lawn mower to drain oil,
drain fuel tank by running engine until fuel tank
is empty.
• Disconnect spark plug wire from spark plug
and place wire where itcannot come in
contact with spark plug.
• Remove engine oil cap; lay aside on a clean
surface.
• Tip lawn mower on its side as shown and
drain oil into a suitable container. Rock lawn

•
•
•
•

mower back and forth to remove any oil
trapped inside of engine.
Wipe off any spilled oil on lawn mower and
on side of engine.
Fill enginewith oil. Fill onlytothe "FULL"
line on the dipstick. DO NOT OVER FILL.
Replace engine oil cap.
Reconnect spark plug wire to spark plug.

AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Replace the air filter every year, more
often if you mow in very dusty, dirty
conditions.
Do not wash air filter.
TO CHANGEAIR

FILTER

Turn
clockwise to
remove

Collar

,_Clip
Slot,.!
Turn counterclockwise to
tighten

Air filter
Air filter cover
MUFFLER

Inspect and replace corroded muffler as it
could create afire hazard and!or damage.
SPARK PLUG
Change your spark plug each year to make
your engine start easier and run better. Set
spark plug gap at .030 inch.

CLEANING
IMPORTAN'E For best performance, keep
mower housingfree of buiit-upgrass and
trash. Clean undersideof mowerhousing
aftereach use.
_,CAUTION:
Disconnect spark _ug wire
from spark plug and place wire wh_re it
cannot come in contact with the spark plug.
• Clean the underside of your lawn
mower by scraping to remove build-up
of grass and trash.
• Clean engine often to keep trash from
accumulating.
A clogged engine runs
hotter and shortens engine life.
• Keep finished surfaces and wheels free
of all gasoline, oil,etc.
• We do not recommend
using a garden
hose to clean lawn mower unless the

• Remove the air filter by turning clockwise to the stop and pull away from
collar.
• Remove filter from inside of cover.
• Clean the inside of the cover and the
collar to remove any dirt accumulation.
• Insert new tilter into cover.
• Put air filter cover and filter into colla_
aligning the tab with the slot.
• Push in on cover and turn counterclockwise to tighten.

electrical system, muffler, air filter and
carburetor
are covered to keep water
out. Water in engine can result in
shortened
engine life.

14

_'_,CAUTION:
ANY SERVICE

BEFORE PERFORMING
OR ADJUSTMENTS:

•

Release control bar and stop engine.
Make sure the blade and all moving
parts have completely stopped.
Disconnect spark plug wire from
spark plug and place where it cannot
come in contact with plug.
LAWN MOWER
TO ADJUST

CU'I-rlNG HEIGHT

See "TO ADJUST CUTTING

HEIGI-Fr' in the

Operation section of this manual.

REAR DEFLECTOR
The rear deflector, attached between the rear
wheels of your lawn mower, is provided to
minimize t_e possibility that objects will be
thrown out the rear of the lawn mower into the
operator's mowing position. If the rear
deflector becomes damaged, itshould be
replaced.
TO ADJUST

HANDLE

The handle on your lawn mower has three (3)
height positions - adjust to height that suits
you.
•- Squeeze the bottom ends of lower handle
towards each other until the pin in handle
can be inserted into one of the three height
adjustment holes.

Handle pin
HI
Low

J

3-position
Handle
adjustment
bracket

ENGINE
ENGINE SPEED
Your engine speed has been factory set. Do
not attempt to increase engine speed or it
may result in personal injury. If you believe
that the engine is running too fast or too slow,
take your lawn mower to an authorized
service center/department for repair and
adjustment.
CARBURETOR
Your carburetor has a non-adjustable fixed
main jet for mixture control. If your engine
does not operate propedy due to suspected
carburetor problems, take your lawn mower to
an authorized service center/department for
repair and adjustment.
IMPORTANT: Never tamper with the engine
governor, which is factory set for proper engine
speed. Overspeeding the engine above the
factory high speed setting can be dangerous.
if you think the engine-govemed high speed
needs adjusting, contact your nearest
AUTHORIZED service center, which has
proper equipment and experience to make
any necessary adjustments.

15

Immediately prepare your lawn mower for
storage at the end of the season or if the unit
will not be used for 30 days or more.

LAWN MOWER
When lawn mower is to be stored for a period
of time, clean it thoroughly, remove all dirt,
grease, leaves, etc. Store in a clean, dry area.
• Clean entire lawn mower (See "CLEANING"
in the Maintenance section of this manual).
• Lubricate as shown in the Maintenance
section of this manual.
• Be sure that all nuts, bolts, screws, and pins
are securely fastened. Inspect moving
parts for damage, breakage and wear.
Replace if necessary.
• Touch up all rusted or chipped paint
surfaces; sand lightly before painting.

HANDLE
• You can fold your lawn mower handle for
storage.
• Loosen the two (2) handle knobs on sides of
the upper handle and allow handle to fold
down to the roar.
• Squeeze the bottom ends of lower handle
toward each other until pins in handle clear
the brackets and pivot entire handle
assembly forward and allow it to rest on
mower.
• When setting up your handle from the
storage position, the lower handle will
require manually locking into the mowing
position.
IMPORTANT: When folding the handle for
storage or transportation be sure to fold the
handle as shown or you may damage the
control cables,
Operator presence
control bar""'_

_"/_'_"_-/

Fo,dto ard
for storage
Lower

j,,_
_1

,',,

IMPORTANT: It is important to prevent gum
deposits from forming in essential fuel system
parts such as carburetor, fuel tilter, fuel hose,
or tank during storage. Also, experience
indicates that alcohol blended fuels (called
gasohol or using ethanol or methanol) can
attract moisture which leads to separation and
formation of acids during storage. Acidic gas
can damage the fuel system of an engine
while in storage.
• Drain the fuel tank.
• Start the engine and let it run until the fuel
lines and carburetor are empty.
• Never use engine or carburetor cleaner
products in the fuel tank or permanent
damage may occur.
• Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable
a]temative in minimizing the formation of fuel
gum deposits during storage. Add stabilizer
to gasoline in fuel tank or storage container.
Always follow the mix ratio found on stabilizer
container. Run engine at least 10 minutes
after adding stabilizer to allow the stabilizer to
reach the carburetor. Do not drain the gas
tank and carburetor if using fuel stabilizer.
ENGINEOIL
Drain oil (with engine warm) and replacewith
clean engine oil. (See "ENGINE" in the
Maintenance section of this manual).
CYLINDER
• Remove spark plug.
• Pour one ounce (29 ml) of oil through spark
plug hole into cylinder.
• Pull starter handle slowly a few times to
distribute oil.

" another.D°
not store gasoline from one season to

_ iiI._ ,i Fold
,_:*'_..............
"_/:,
• Replace your gasoline can if your can
t_,
'',_,,,;" J
backward
starts to rust. Rust and/or dirt in your
_1:7'*_ ...... :: _,%" _F
I
_1__,_-'
",_ *;" p,A...•
gasoline will cause problems.

handle ------_/_:_

position

H;__.
'e_;'._
Low F

FUELSYSTEM

• Replace with new spark plug=
OTHER

S/

Upper handle

ENGINE

.

Handle pin
_

3-position
Handle
adjustment

_'_//
\

• If possible, store your unit indoors and
cover it to give protection from dust and dirt.
Cover your unit with a suitable protective
cover that does not retain moisture. Do not
use plastic. Plastic cannot breathe which
allows condensation to form and will cause
your unit to rust.

_y\

\

bracket

16

IMPORTANT:
engine

Never cover mower while

_CAUTION:
Never store the lawn
mower with gasoline in the tank inside a
building where fumes may reach an open
flame or spark. Allow the engine to cool
before storing in any enclosure.

and exhaust areas are still warm.

TROUBLESHOOTING

Loss of power

CORRECTION

CAUSE

PROBLEM
Will not start

CHART

1.
2.
3.

Dirt,/air filter.
Out of fuel.
Stale fuel.

4.

Water in fuel.

1. Clean/replace air filter.
2. Fill fuel tank.
3. Drain tank and refill w_th fresh
clean fuel.
4. Drain fuel tank and carburetor

5.
6.
7.
8.

Spark plug wire is disconnected,
Bad spark plug.
Loose blade or broken blade
adaptor.
Control bar in released position

and refill tank with fresh gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Tighten blade bolt or replace blade
adapter.
i 8. Depress control bar to handle.

9.

Control bar defective

9.

1.

Rear of lawn mo_ver

1. Set in "Higher Cut" position.

Replace control bar.

5.
6.

housing/blade dragging
in heavy grass.
Cutting too much grass.
Dirty air filter.
Buildup of grass, leaves
and trash under mower.
Too much oil in engine.
Walking speed too fast.

1.
2.

Worn, bent or loose blade.
Low engine speed.

3.

Buildup of grass, leaves, and
trash under mower.

Excessive
_ibration

1.
2.

Worn, bent or loose blade.
Bent engine crankshaft.

1. Replace blade. Tighten blade bolt.
2. Contact an authorized service
center/deparfment.

Starter rope
hard to pull

t,

2.

Engine flywheel brake is
on when control bar is released.
Bent engine crankshaft

3.
4.

Blade adapter broken.
Blade dragging in grass.

1. Depress control bar to upper
handle before pulling starter rope.
2. Contact an authorized service
center/department.
3, Replace blade adapter.
4. Move lawn mower to cut grass or
to hard surface to start engine.

2.
3.
4.

Poor cut
- uneven

17

2. Set in "Higher Cut" position.
3. Clean/replace air filter.
4. Clean underside of mower housing
5. Check oil level.
6. Cut at slower walking speed.
1. Replace blade. Tighten blade bolt.
2. Set engine speed control in fast
position.
3. Clean underside of mower housing

TROUBLESH(
PROBLEM

OTING CHART
CAUSE

CORRECTION

Grass catcher
not filling
(if so equipped)

1.
2.
3.
4.

Cutting height too low.
Lift on blade worn off.
Catcher not venting air.
Low engine speed.

1.
2.
3.
4.

Raise cutting height.
Replace blade.
Clean grass catcher.
Set engine speed control in
fast position.

Hard to push

1.

Grass is too high or
wheel height is too low,
Rear of lawn mower
housing/blade dragging
in grass.
Grass catcher too full.
Handle height position
not right for you.

1,

Raise cutting height.

2.

Raise rear of lawn mower
housing one (1)setting higher,

3.
4.

Empty grass catcher.
Adjust handle height to suit.

Belt wear.
Belt off of pulley.
Drive cable worn or broken.
Dirt in drive pinions.

1.
2.
3.
4.

Check/replace drive belt.
Check/reinstall drive belt.
Replace drive cable.
Clean drive pinions.

2.

3.
4.

Loss of drive

1.
2.
3.
4.

18

SERVICE

37

NOTES

ROTARY

LAWN MOWER

- - MODEL

NO. 917.377911
26

X

18

8
4

22

41

24
10

56

"68

27J

ROTARY
KEY
NO,

PART
NO

1
2
3
4
5
6
"7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
L)6
27
28
29
30
31
32
33
34
35
36
37

167163
161105)(479
131036
132001
63601
66426
131959
87692
164265
161551
73990500
51793
161596
850733)(004
83816
162085
161548
165261
166907
161568X479
168227X479
150078
163183
63124
161333
163409
161550
88652
166036)(479
851514
159267
851074
850263
851084
166032
170O45
150406

38

.....

LAWN MOWER

DESCRIPTION
Handle, Upper DIx Coral. (Includes Grip)
Handle, Lower
Bail, Coot. Wire Dlx Comf. BIk
Guide, Rope, Side
Nut, Hex Loekwasher 1/4-20
Wire, Tie
Bolt, Handle 5/16-18x 1.75
Knob,Handle
Grip, Hdl Foam Smooth
Bolt, Sq. Neck
Nut, Hex Lockwasher Ins. 5/16-18 UNC
Cotter, Hairpin
Engine Zone ControlCable
Bracket, Upstop
Screw, Hex Washer Head Tapping 10-2
Kit, Door Rear
Seal, Door
Plug, Mulcher
Kit, Housing
Handle, Bracket Asm. Left
Handle, Bracket Asm. Right
Screw, Hex Wshd
Bolt, He;
Source Exif Data:
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File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 30
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Thu Apr 05 06:19:47 2007
Author                          : 
Title                           : 
Subject                         : 
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