Sears 917.257070 User manual

~?'? &~
___,
ISearsI
MODEL NO.
917.257070
OWNER'S
MANUAL
D® Dao[po lJWO[ill DaY!LID~®
®ill~LIDrn[ill ll~ill~ll®~
Assembly Operation
Maintenance Repair Parts
Sears, Roebuck and Co., Chicago, Ill. 60684, U.S.A . and Simpsons Sears Limited, Toronto, Canada
.....
another free manual from www.searstractormanuals.com

=-
·· ·· ·\.•,
.n
<,.
-- ~£;. __ _
_,u... ,..---,.-- .
I
\, ~ , tK '1 l ·
., , ,..• v . ,,'(~ ¥ ' •IV,. ,I
.f.0 / vARD CARE
GARDENS
SNOW REMOVAL
CO N GRA TUL A TI ONS on your purchase of a Sears 18 H.P.
Twin Hydro Garden Tractor. It has been designed, engineered
and manufactured
to give you dependability and performance.
Should you experience any problem you cannot easily
remedy, please contact your nearest Sears, Roe buck and Co. or
Simpsons Sears Limited sto re. They have competent, well-
trained technicians and the proper tools and parts to service
or repair this unit.
Please read and retain this manual. The instructions will enable
you
to assemble, operate and maintain your Tractor properlx.
Always observe the
"R ULES FOR SAFE OPER AT IO N' .
YOUR NEW SEARS
GARDEN TRACTOR
FEATURES ...
OPP OS ED-PISTON, FOUR CYCLE, TWIN - CYLINDER 18
H.P. ENGINE
-- to run smoothly and quietly with plenty of
power to take on a vari ety of yard, gardening or snow re-
moval tasks.
SAFET Y IN TERLOCK SYSTEM --a llows engine to start only
when Drive Control Lever is in neutral and Attachment Clutch
Pedal is in "OFF" position.
AUTOM ATI C TR ANSMI SS ION --means no gearshifting and
no clutching. Regulate tractor speed and direction with the
Drive Control Lever. Move lever forward from neutral
to
increase forward speed. Move Lever rearward to back tractor
and regulate backward speed.
SE RVICE HOUR METER--lets you know at a glance, when
mainten
ance is due.
CO N TRO L PAN EL --with Throttle, Choke, Light Switch, Ig-
nition Switch, Service Hour Meter and Power Assist Lift
Switch for Three Point Hitch conveniently grouped for ease of
use.
AT TAC HMENT V ERSATILITY --handles a large variety of
Sears Yard and Garden Tractor Attachments including ...
42 AND 48 INCH MOWERS with three "high-lift " blades
to l ift grass up for level cuts.
LITTER WHISK LAWN SWEEPER is more efficient than
conventional lawn
sweepers because of its wheel-less design;
only the rotary brush touches the ground.
SELF POWERED ROTO-TI LL ER prepa res soil for new
lawns
and gardens wit h a 30 or 38 inch wide tilling path.
OTHER SOIL TI LLAGE ATTACHMEN TSincluding Plow,
Disc Harrow, Drag Harrow
and Cultivator.
CHEVRON Tl RES for added traction in l oose soil, gravel
or snow.
SNOW BLOWER handles wet, heavy or powdery snow with
ease .
another free manual from www.searstractormanuals.com

TABLE OF CONTENTS
WARRANTY.
RULES FOR SAFE OPERATION
ASSEMBLY INSTRUCTIONS
OPERATION INSTRUCTIONS .
1
1
. 2
.4
MAINTENANCE INSTRUCTIONS
TROUBLE SHOOTING
REPAIR PARTS . . •
.6
.13
.14
FULL ONE YEAR WARRANTY
ON ELECTRIC START GARDEN TRACTOR
For one year from th e date of purcha~c. ••,hen this Garden Tractor is used for personal household purposes, Sears
will repair any defect in material or workmanship in this Garden Tractor, except the battery, at no charge.
If this Garden Tractor is used for commercial or rent al purposes, this warranty applies for only 30 days from the
date of purchase.
FULL 90-DAY WARRANTY ON BATTERY
For 90 days from the d at e ot purchase, if any battery includ ed with the Garden Tractor proves defective in mat·
erial or workma nship and will not hold a cha rg e, Sears wi ll replace the battery, at no charge.
LIMITED WARRANTY ON BATTERY
From the 91st day until one year from the date of purchase, if any battery included with the Garden Tractor
proves defective in material or workmanship 1nd will not hold a charge, Sears will replace the battery, charging
1/12th of the price of the new battery for each full month from the date of purchase.
Warranty service
is available at your home, ai no charge, by simply contacting the nearest Sears store or Service
Center throughout the United States.
Th is warranty giv es you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co.
Sea rs Tower
sse 41·3
Chicago, IL 60684
RULES FOR SAFE OPERATION
1. Know the controls and how to stop quickly. READ THE
OWNER'S MANUAL.
2. Do not allow children to operate the vehicle. Do n ot allow
ad ults to operate it without pr oper instruction.
3. Do not carry passe ngers. Ke ep children and pets a safe dis-
tance away.
4. Clear
th e work area of objects wh ich might be picked up
and
thrown.
5. Disengage all attachment clu tc h es and shift into neutral be-
fore attempting to start the engine.
6. Disengage p
ow er to attachments and stop the engine be-
fore leaving the operator's posit ion.
7. Disengage power to attachments and stop th e engine before
making any repairs
or adjustments.
8. Disengage power
to attachments when transporting or not
in use .
9. Take all poss ibl e precautions when leaving the vehicle u n-
attended, such as disengaging the power·take·off, l ow ering
the attachments, shifting
into neutral, setting the parking
brake, stopping the eng i ne , and re mov ing the key.
10. Do not stop or start suddenly when going uphill or down-
h il l. Mow up and dow n the face of slopes (not greater than
15°); never across the face.
11. Reduce
speed on sl opes and ma ke turns gradua ll y to pre-
vent ti pp ing or loss of control. Exercise extreme caution
wh en changiny direction on s lo pes .
1
2. Stay alert for ho l es in the terrain and other hidden hazards.
13.
Use care when pulling l oads or us in g h eav y equipment.
a. Use o nly ap pr oved drawbar hit ch points.
b. Li mit loads to those you can safely control.
c. Do not turn sharply. Us e care when backing.
d.
Use counterweights or wheel weights when suggested in
this owner's manual.
14 . Watch out for traffic when crossing or near roadways.
15. When using any attachments, never direct discharge
of
material toward bystanders nor allow anyone near the ve·
hide while in operation.
16. Handle gasoline
with care · it is highly flammable.
a. Use approved gasoline containers.
b. Never remove the cap
of the fuel tank or add gasoline to
a running or hot engine, or fill the fuel tank in doors.
Wipe
up spilled gasoline.
c. Open doors
if the engine is run in the garage · exhaust
fumes
are dangerous. Do not run the engine indoors.
17 . Keep the vehic le and attachments in good operating con·
dition, and keep safety devices in place.
18. Keep all nuts, bolts and screws
tight to be sure the equip·
ment is in safe working condition .
19. Never store the equipment
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.
20. To reduce fire hazard, keep the engine free of grass, leaves ·
or excessive grease.
21. The vehicle and attachments should be stopped and inspect·
ed for damage after striking a foreign object, and the dam·
age should be repaired before restarting and operating the
equipment.
22.
Do not change the eng in e governor settings or overspeed
the
en gine.
23. When using the vehic
le wi th mower, proceed as follows:
a. Mow only in day li ght or in good artificial light .
b. Never make a cutting height adjustment while the engine
is running if the operator must dismount to do so.
c. Shut the engine off when removing the grass catcher or
unclogging chute.
d.
Ch ec k the blade mou nting bolts for proper tight ne ss at
frequent intervals.
24. Check the
grass catcher bags frequently for wear or deterio·
ration. Replace with new bags for safety protection.
A LOOK
FOR THIS SYMBOL TO POINT OUT IMPORTANT
SAFETY PRECAUTIONS.
IT MEANS .. ATTENTION!
BECOME ALERT! YOUR SAFETY IS INVOLVED.
. 1 .
another free manual from www.searstractormanuals.com

I
•
CUT AWAY VIEW
FIGURE 1 :: ~-:. ..::.::.-:. ...::
) ':
BATTERY
-BOLT
\
BAT TERY
SUPPORT
SL
OT
FIGURE 4
FIGURE 5
SAFETY
VENT CAP
BATTERY
, I '?': TUBE
I rrBA TT ERY
CELL
...... _ ___ -
------
- -- ----
To assemb le and adju st your Tr actor you wi ll need:
two 7
/16", one 9/ 16" and one 3/ 4" Wrenches.
ASSEMBLY
1. Remove Shipping Wires, Batter y, Steering Wheel and Bag of
Parts .
2
.Filli ng and charging Battery (before installing): NOTE: SEE
DETAILED INSTRUCTIONS PACKAGED WITH BAT-
TERY .
A WEAR EYE
AND FACE SHIELD.
a. Fill Battery with electrolyte to bottoms of tubes in cells
(Fig. 1). NOTE: DO NOT OVERFILL. OVERF ILLING
WILL RESULT IN DAMAGE TO TRACTOR.
A
WAS H HANDS OR CLOTHING IMMEDI-
ATELY IF AC CIDENT A LL Y IN CONTACT
WITH ELECTROLYTE.
b. Check level of electrolyte after 30 minutes. Add addi-
tional electrolyte if necessary. NOTE: Press Safety Vent
Caps down securely in place.
c. Cha rge Battery at a rate not exceeding three amperes
for about two and one half hours.
A DO
NOT SMOKE. FUMES FROM CHARG·
ED ELECTRO LYTE ARE EXPLOSIVE.
d. Neutralize excess electrolyte for disposal by adding it to
four inches of water in a five gallon plastic container.
Stir with a wooden or plastic paddle while adding bak-
ing soda until the addition of more soda causes no more
foaming.
3.1nstall Battery using:
Battery Clamp,
two Wing Nuts, two Battery Bolts,
Q):::DD @) ®
four Flat Washe rs, two Hex Bolts and two Hex Nuts found
in
Bag of Parts.
a. Gr asp each side of Hood at rear and pull outward and
upward (Fig. 2).
b. Remove tape from Plastic Tray. Position Plastic Tray so
that drain hole in Tr ay is over round hole of Battery
Support.
c. Place Battery in Plastic Tray (Battery Terminals to rear
of Tractor) (Fig. 3).
d. Hook one Battery Bolt into slot on the left side of
Battery Support (Fig. 3). Fasten Battery Clamp (inner
slot)
to Battery Bolt with a Flat Washer and Wing Nut.
e. Hook remaining Battery Bolt to right side of Battery
Support and fasten Battery Clamp to it with a Flat
Washer and Wing Nut (Fi g. 4). Tighten Wing Nuts
securely.
f.
Place a Flat Washer over the end of a Hex Bolt . Secure
RED Battery Cable to Positive (+ )Battery Terminal with
a Hex Bolt (Washer attached) and Hex Nut (Fig. 5).
Tighten
Nut securely. Place Boot over Terminal.
A
POS ITIVE TERMIN AL MU ST BE CON·
NECTED FIRST TO PREV ENT SPAR KS
F RO M ACCIDENT AL GR OUNDING.
g. Plac e remaining Flat Wa sher over the end of the remain-
ing Hex Bolt. Secure BLACK Ground Cab le to Negative
(-) Battery Terminal with Hex Bolt (Washer attached)
. 2 . and Hex Nut (Fig. 5). Tighten Nut se curely.
another free manual from www.searstractormanuals.com

4. 1nstall Steering Wheel using: Flat Washer, Lockwasher, and
Hex Bolt assembled on end of Steering Shaft; Woodruff
Key, and Steering
Wheel Insert found in Bag of Parts.
a. Remove Hex Bolt, Lockwasher and Flat Washer from
Steering Shaft (Fig. 6).
b. Insert Woodruff Key in Keyway of Steering Shaft and
slide Steering
Wheel over Shaft and Key. NOTE: BE
SURE WOODRUFF KEY IS SECURE IN STEER lNG
SHAFT .
c. Fasten with Flat Washer, Lockwasher and Hex Bolt
(Fig. 6). Tighten securely.
d. Press Steering Wheel Insert in place.
INITIAL ADJUSTMENTS
1. Reduce Tire pressure to 12 pounds in front and r ear Tires.
(Tires were overinflated for shipping purposes).
2. Seat position may be adjusted forward or backward by
loosening Nut in Seat Plate (Fig. 7). NOTE WH-EN RE·
TIGHTENING NUT AFTER ADJUSTMENT. MAKE SURE
SEAT PLATE HAS NOT TWISTED OUT OF ALIGN·
MENT WITH SEAT SPRING.
3.The By-Pass Valve Handle (Fig. 8) slides in and out, and
rotates
so that Ha ndle will engage the notch in Rotating
Plate. Moving the Handle up or down
with Handle engaging
notch
will open or close By- Pa ss Valve.
The By-Pass Valve must be in closed pos1t1on (rotate
down tight)
for tractor to operate with engine running.
Index handle up at least four notches if it becomes neces -
sary to push tractor with engine stopped.
NOTE: Do not force Valve.
THIS TRACTOR IS EQUIPPED WIT H
SAFETY SWITCHES TO PREVENT
START IN G OF THE TRACTOR ENGINE
WHILE THE ATTACHMENT CLUTCH
PEDAL IS IN THE
"ON" POSITION (FIG.
11) AND THE DRIVE CONTROL LEVER
IS IN " F" FORWARD OR " A" REVERSE
POSITIONS (FIG. 12).
IMMEDIATELY REPLACE SWITCHES
THAT ARE NOT IN PROPER WORKING
ORDER.
DO NOT ATTEMPT TO DEFEAT
THE PURPOSE OF THESE SWITCHES.
STEERING--~
WHEEL
INS ERT
STEERI
FIGURE 6
another free manual from www.searstractormanuals.com

FIGURE 11
FIGURE 12
INITIAL SERVICE
NOTE: BE EXTREMELY CAREFUL NOT TO A LLOW DIRT
OR FOREIGN
PART ICLES TO ENTER THE HYDRA ULI C
SYSTEM OR ENGINE WHEN CHECKING OR
ADDING OIL,
HYDRAULIC FLU ID OR FUEL.
1.Check Engine Oil Level with Tractor on l eve l ground.Wipe
dipstick (Fig. 9) clean, push it in tig
ht for a few secf?nds, re-
move and read Oil Level. If necessary, add Oil until' FULL"
ma rk is rea ched. In summer use S.A.E. 30 (SC, SO or SE)
Oil. In winter (below 32°F.) us e S.A.E. 10W30 (SC, SO or
SE ) or 10W40 ( SC , SO or SE ). In extreme cold (below
ooF.)
use S.A.E. 5W20 (SC, SO or SE). NOTE: DO NOT
OVERFILL.
2.Check Hydrostatic Transmission Fluid Level (Fig. 10) with
eng i ne running and Drive Control Lever (Fig. 12) in neutral
position.Add fluid if necessary to bring level up to "SAFE"
mark on dipstick. NOTE: Cap and Dipstick must q~ sc rew·
ed in tight to check f lui d level. Do not fill above SAFE"
m,~rk on dipstick. Use automatic transmission fluid "TYPE
F only.
3. F ill Fu el Tank (Fig. 13) with fresh regu lar grade le ad-free
or leaded gasoline. Capacity is 2 gallons. NOTE: DO NOT
SWITCH FROM LEADED TO LEAD-FREE GASOLINE.
FILL TO BOTTOM OF GAS TANK F IL ·
LER NECK . DO NOT OVERFILL. WIPE
OFF ANY SPILLED OIL OR FUEL.
OPERATION
A
A
DO NOT OPERATE THE MOWER W ITH -
OUT EITH ER THE ENTIR E GRASS
CATCHER, ON MOWERS
SO EQUIPPED,
OR THE
DEFLECTOR SHIELD IN PLACE.
CAUT ION
1.Keep all shields in place.
2.Before
le avi ng operator's position:
a. Shift transmission to neutral
b. Set parking brake
c. Disengage attachment clutch
d. Shut off engine
e. Remove ignition key
3
.W ait for all movement to stop before servicing machine.
4. Keep people and pets a safe distance away from machine.
STARTING THE E NGIN E
1. Piace Attachment Clutch Pedal in "OFF"position (Fig. 11).
2.Move Drive Co ntrol Lever to "N" neutral posit ion (Fig.12).
3. Move By-Pass Va l ve Handle to "CL OSE " position (Fig. 13 ).
4 .P ull up on Pa rki ng Brake Handle to "LOCK" position (Fig.
13).
BY-PASS
VE HANDLE
another free manual from www.searstractormanuals.com

5. Push Clutch-Brake Pedal into "BRAKE" position (Fig. 14).
6. Move Throttle Control Lever to middle position (Fig. 15).
7. Pull Choke out (Fig. 15).
8. Turn Ignition Key to "START" position until Engine
starts (Fig. 15).
Release key into "ON" position.
NOTE: DO NOT RUN STARTER CONTINUOUSLY
FOR MORE
THAN THIRTY SECONDS AT A TIME. If
engine does not start after several attempts, move throttle
Control Lever to "F" fast pos ition, wait a few minutes, and
try again.
NOTE: The Power Assist Lift Switch (Fig. 15) raises or
lowers an attachment when used with an Electric Three
Point Hitch (optional equipment).
WARMING UP THE ENGINE
Move Throttle Control Lever to "s" slow pos1t1on . Push
Choke in as engine warms. NOTE: ALLOW ENGINE TO
WARM UP FOR A FEW MINUTES BEFORE OPE~ATING .
When restarting a warm engine, move Throttle Control Lever
in middle position, Choke may not have to be used.
ALWAYS WEAR SUBSTANTIAL FOOT-
WEAR AND AVOID LOOSE FITTING
CLOTHING THAT COULD GET CAUGHT
IN MOVING PARTS.
LEARN TO START, STOP AND REVERSE
YOUR TRACTOR
IN A LARGE, OPEN
SPACE.
TRACTOR OPERATION
1. With engine running and warm, move Thrott le Co n tro l
Lever
to middle position.
2. Push down on Parking Brake Handle to "UN LOCK"
position.
3. Press Button (Fig. 12)on Drive Control L ever and slowly
move Lev er forward and tractor will begin to move.
THE DRIVE CONTROL LEVER IS SEN-
SITIVE TOTHESLIGHTESTMOVEMENT.
MOVE DRIVE CONTROL LEVER SLOW-
LY.
4. Adjust Throttle Control Lever to desired engine speed so
that engine is not overloaded.
NOTE: Always operate power-driven equipment such as Ro-
tary Mower, Snow Thrower, etc. at full Throttle speed unless
otherwise specified in the attachment Owners Manual. Always
select a
safe ground travel speed that will suit the terrain and
the attachment being
used.
5. To back-up, return Drive Control Lever to "N" neutral
position
and tractor will stop. Reduce Throttle Control
Lever to "SLOW" position, pull Drive Control Lever back
slowly.
NEVER PLACE YOUR HANDS OR FEET
IN OR UNDER ANY POWERED ATTACH-
MENT OR NEAR ANY MOVING PART
WHILE TRACTOR OR
ANY POWERED
ATTACHMENT IS RUNNING. -
5-
BRAKE
DRIVE
CLUTCH-BRAKE
PEDAL
STOPPING YOUR TRACTOR
1. Return Drive Control Lever to "N'' neutral position.
2.Reduce Throttle Control Lever to "s" slow position.
3.P iace Attachment Clutch Pe dal in "OFF" position.
4. Place Parki ng Brake in "LOCK" position.
A MAKE SURE PARKING BRAKE WILL
~ HOLD TRACTOR SECURE.
5. Turn Ignition Key to "OFF" position.
REMOVE KEY WHEN LEAVING TRAC-
TOR TOPREVENT
UNAUTHORIZED USE.
NOTE:
USE CLUTCH-BRAKE PEDAL FOR EMERGENCY
STOPS ONLY. FOR NORMAL STOPS, RETURN DRIVE
CONTROL LEVER TO NEUTRAL BY HAND DEPRESSING
THE CLUTCH-BRAKE PEDAL HALF-WAY DECLUTCHES
THE TRACTOR
AS LONG AS THE PEDAL IS HELD
IN THIS POSITION. WHEN FOOT IS REMOVED FROM
PEDAL, TRACTOR
WILL RETURN TO TRAVELI NG
SPEED. NEVER
USE FOOT PEDAL AS A CLUTCH
TO SLOW TRACTOR. ALWAYS PUSH
CLUTCH-BRAKE PEDAL ALL THE WAY
FORWARD SO THAT DRIVE CONTROL
LEVER RETURNS TO NEUTRAL.
another free manual from www.searstractormanuals.com

TRANSPORTING YOUR TRACTOR
TOWING IS NOT RECOMMENDED. As with any hydraulic
power transmission, internal
damage can result when vehicle
is towed. Push tractor by hand only short distances with
controls as follows:
1. Drive Control Lever in "N" neutral.
2. By- Pass Valve in "OPEN" position.
3. Parking Brake Handle pushed down to "UN LOCK" posi-
tion.
Use trailer to transport tractor for long distances.
TRACTOR OPERATION ON HILLS
DO NOT DRIVE UP OR DOWN HILLS
WI TH SLOPES GREATER THAN 15°,AND
DO NOT DRIVE ACROSS ANY SLOPE.
1. Avoid stopping on hills.
a. If slowing is necessary, pull Drive Control Lever back
slowly.
b. If stopping is necessary, pull Drive Control Lever to
neu tral.
c. Engage Parking Brake.
d. To resume travel push Drive Control Lever slowly for-
ward.
e. Release Parking Brake as forward movement begins.
2. Make."'ll turns gradually.
~~ ~~~~ --~~-SYSTE M
INDI C ATOR
- 6-
STARTING YOUR TRACTOR
WITH A LOW BATTERY
If your Battery is too low to start the engine, it sho uld be
recharged. If "Jumper Cables" are used for emergency starting
follow this procedure. NOTE: YOUR TRACTOR IS EQUIP- ~
PED WITH A 12 VOLT NEGATIVE GROUNDED SYSTEM.
THE OTHER VEHICLE MUST ALSO BE A 12 VOLT
NEGA
TIVE GROUNDED SYSTEM.
A
LEAD - ACID BATTERIES GENERATE EX -
PLOSIVE GASES. KEEP SPARKS,
FLAME,
AND SMOKING MA TERI ALS AWAY FROM
BATTERIES. ALWAYS SHIELD EYES
AROUN D BATTERIES.
1. Connect each end of the RED cable to the F"OSITIVE (+)
termina ls of each battery (taking care not to short against
cha ssis).
2. Connect one end of the B LA CK cable to the NEGATIVE
(-) terminal of "GOOD" battery.
3. Connect the other end of the cable to ENGINE BLOCK
of good CHASSIS GROUND on tractor (away. from Gas
Tank or Ba tt ery).
4. Disconnect cables in reverse order:
a. Engine Block or chassis.
b. Negat ive terminal of "GOOD" battery.
c. Positive terminals.
DO NOT USE YOUR TRA CTOR BA~
TE RY TO START OTHER VE HICLE S.
MAINTENANCE
1. SERVI CE HOUR METER
To
keep your tractor running better, longer; perform neces-
sary service using the following Maintenance Schedule and
the Service Hour Meter {Fig. 16)
on the tractor dash.
The Service Hour Meter records the number of hours of
tractor operation. Read the Hour (Red Hand) on the outer
dial;
each mark indicating one hour of operation. Read the
Sixty Hour (Yellow Hand) on the inner dial;
each mark in-
dicating sixty hours of operation. The System Indicator
~White Hand) moves visibly when the Ignition Key is in the
'oN" pos ition , indicating the system operational. It is nor-
mal
for this hand to continue to turn for a shwt period of
time after t he Ig nitio n Key is turned to the 'OFF' posi-
tion.
A DISCONNECT SPARK PLUG WIRES TO
PREVENT ACCIDENTAL S TARTING BE -
FORE MAKING ANY INSPECTION, AD-
JUSTMENT (EXCEPT CARBURETOR) OR
REPAIR.
another free manual from www.searstractormanuals.com

FIRST ~ HOURS
1.CHECK V-BELT TENSION
A new V-Belt may stretch after the first few hours of opera-
tion.
If Clutch-Brake Pedal. in drive position (Fig. 14) is
considerably to the front or rear of the verti cal position,
t
he V-Belt is out of adjustment and must be re-tensioned.
a. Secure Clutch-Brake pedal in brake position (relaxing
V-Belt tension) by tieing
to front axle.
b. Hold
Nut on inside of Flat Idler and loosen Flat Idler
Bolt (Fig. 17).
c. Move Flat Idler in frame slot 1/4 inch down (to tighten ),
up (to loosen) V-Belt tt:nsion. Tighten Bolt.
d.
Release Clutch-Brake Pedul. It should return to approxi-
mately vertical position.
NOTE: FOR LONGER V-BELT LIFE, ALWAYS KEEP
BELT TENSIONED PROPERLY, START TRACTOR
MOVEME NT WIT H THROT TLE CONTROL IN MI DDLE
POS IT ION, AND ALWAYS REPLACE WITH SEARS
V-BELTS.
2 . CHANGE E
NGINE OIL
Changing Oil after the first two hours will help eliminate
break-in residue which
might be damaging to your Engine.
Note:
Be careful not to allow dirt to enter the Engine
when changing
oi l.
a. Drain Oil with Engine warm. Unscrew Oil Drain Cap
(Fig. 17) and catch Oil in a suitable container. Replace
Cap.
b. Refill Engine Oil (Fig. 18). In summer use S.A.E. 30
(SC, SD or SE) Oil. In winter (below 32°F .) use S.A. E.
10W30 (SC, SD or SE) or 10W40 (SC, SO or SE). In ex-
treme cold (below 0°F .) use S. A.E. 5W20 (SC, SD or
SE). Capacity is 3 · 1/2 pints. NOTE: DO NOT OVER-
FI
LL.
FIRST D@ HOURS
1. R EPLA CE HYDROSTA TIC TR ANSMI SS ION FL UID FIL ·
TER. Fi lter is available from Sears (Part No. 5276R).
a. Remove Screw from each side of OiI FiIter Shield (Fig.
19).
Place rag under Filter to absorb oil leakage.
b.
Turn F ilter (Fig. 20) counterclockwise to remove. App ly
a
light film of oil to seal surface and threads of new
Filter. Hand tighten
Filter securely. Turn Clockw ise to
tighten.
c. Replace Oil Filter Shield and Screws. Check oil level
and replace
oil as required.
d.
After operating Tractor, check Filter fo r Fluid leaks. If
leakage occurs, tighten Filter.
-1·
FIGURE 17
E NGIN E OIL
F
ILL DIPS TI CK
'
FIGU RE 18
FIGURE 19
FIGURE
20
another free manual from www.searstractormanuals.com

CUT-AWAY VIEW
.....-VENT CAP
~1.& ~~-loNGINE
BATTERY
TUBE
BATTERY
CELL
-'-'·--""" "' - OIL FILL
STEERING
BELLCRANK
GREASE
FITTING
FRONT SPINDLE
GREASE FITTING
( LEFT & RIGHT)
FIGURE 24
DIPS TI CK
I
FREQUENTLY
1. C HE CK BATTERY
a. Electrolyte solution level in each Battery Cell should be
even with bottoms of
tub es in cells (Fig. 22). Add dis·
tilled water if necessary. NOTE:
DO NO T OVERFILL.
b. Keep Battery and Terminals clean. Refer to page 12.
c. Keep Battery bolts tight.
d. Keep Vent Caps tight and sm all Vent holes in caps open.
e. Recharge
SLOW LY at 3 amperes if specific gravity of
electrolyte falls below 1.225.
2.CHE CK TIRE PRESSURE
Tire pressure in front and rear Tires should be 12 pounds.
3.CLEAN AIR SCREEN GUARDS
Blower Housing Guard and Flywheel Guard (Fig. 27) must
allow free·flow of air to prevent Engine dama~;~e from over-
heating. Remove Oil Cooler Air Shield (Fig. 14) and Blower
Housing Guard. Clean Blower Housing Guard and Flywheel
Guard with a wire brush to remove dirt and chaff and
stubborn dried gum and fibers.
4.CLEAN OIL COOLER
a. It will qe necessary to remove the O il Cooler Air Shield
(Fig. 14) to clean O il Cooler.
b. Air is circulated from the back of the Oil Cooler there-
fore,
it is especially necessary that this area be kept
clean. Use a small brush, air pressure or water pr ess ure.
NOTE: REPLACE GUAR D AND SHIELD AFTER CLEAN
lNG.
EVERY 0 HOURS
1.CHE CK ENGINE OIL L EV EL
DO NOT CHECK ENGINE OIL LEVEL
WITH ENGINE RUNNING.
Several minutes after stopping Engine, check Eng i ne Oi
Leve l with Tractor on level ground. Wipe dipstick (Fig. 23
clean, push it down tight for a few second~
1
remov~ and rea
Oil Level. If necessary, add Oil until FULL' mark i
reached. In sum~er use S.A.E. 30 (SC, SO or SE) Oil. I
winter (below 32 F.) use S.A.E. 10W30 (SC, SO o6 SE) c
1
OW40 (SC, SO or SE). In extreme cold (be low 0 F.) U!
S.A.E. 5W20 (SC, SO or SE). NO TE: DO NOT OVEF
F ILL.
2 . LUBRICATE STEERING AND FRONT WHEELS
There are six Grease Fitt i ngs on your Tractor (Fig. 24). U
ing a Grease Gun, give each Grease Fitting two shots of E:
treme Pressure Lubricating Grease Amdex No. 1 or un1
grease appears. This grease may be obtained by orderir
Part
No. 2557R through your nearest Se ars repair parts d
partment.
3.0IL PIVOT POINTS
Place several drops of S.A.
E. 30 Oil at points where par
move aga inst each other, especially:
a. Idler Bearings (Fig. 17).
-- Remove Idler Bearing Cap.
-- Remove Retainer Spring from Id ler Shaft.
•• Move Idler and Shaft outward and lubricate e
posed Shaft.
-- Return Idl er and Shaft to original posi tion, repla
Retainer Spring, and reposition Cap.
.. ___________________ .. - 8- b. Front Axle Pivot (Fig. 24).
another free manual from www.searstractormanuals.com

EVERY TI® HOURS
1.CHECK HYDROSTATIC TRANSMISSION FLUID LEVEL
NOTE: Be careful not to allow dirt to enter the Hydraulic
System when checking Fluid Level.
a. Engine must be running and Drive Control Lever in
neutral position with Tractor on level ground.
b. Unscrew
Cap and Dipstick (Fig. 25) remove and wipe
clean.
c. Screw Cap and Dipstick in tight. Remove and read Fluid
Level.
d. If necessary, add Fluid to bring level to "SAFE" mark
on Dipstick. Use Automatic Transmission fluid "TYPE
F" only. Do not overfill. Capacity is 4 - 1/2 quarts. Re-
place Cap and Dipstick.
When Oil Filters are replaced every
50 hours there will be
no need to drain Hydrostatic Transmission.
EVERY ~ HOURS
(FREQUENTLY IF OPERATING IN
VERY DUSTY CONDITIONS)
1.CLEAN AIR FILTER & FOAM PRE-CLEANER •
a. Unscrew Wing Nut (Fig. 26) to remove Air Filter Cover
Paper Air Filter Element and Foam Pr e- Cleaner.
b. Clean dust from Paper Air Filter El ement by gently tap-
ping Element on a
flat surface.
c.
Wash Foam Pre-Cleaner in detergent and warm water.
d. Rinse,
squeeze (rather than twist) and allow to dry thor-
oughly.
e. Coat with three tablespoons of S.A.E. 30 Engine Oil,
knead to distribute evenly, and squeeze out excess.
f. Check Paper Ai~ F ilter Element. Replace if excessively
dirty.
g. Re-Assemble Air Filter and re -position on Tractor.
NOTE: NEVER RUN ENGINE WI TH AIR CLEAhlER
REMOVED.
2 .CLEAN AIR SCREEN GUARDS
Blower Housing Guard and Flywheel Guard (Fi g. 27)
must
allow free-flow of air to prevent Engine damage from
overheating. Remove Oil Cooler Air Shield (Fig. 14) and
remove Blower Housing Guard (Fig. 27). Clean Blower
Housing Guard and Flywheel Guard with a w ir e brush to
remove dirt and chaff and stubborn dried gum and fibers.
NOTE: REPLACE GUARD AND SHIELD AFTER CLEAN-
ING.
3 .CHANGE ENGINE OIL
The best time to change Engine Oil is at the end of a days
operation when all
dirt and foreign material is suspended
m the hot Oil. Refer to pag e 7.
EVERY ~(D HOURS
1. CLEAN COOLING SYSTEM
Remove any dust, dirt, chaff or oil from Engine Cooling
Fins, Blower Housing Guard, Flywheel Guard (located
under Blower Housing Guard) and Oil Cooler Cool-
ing Fins to prevent Engine from overheating (Fig. 27).
a. It will be necessary to remove the Oil Cooler Air Shield
(Fig. 14) to clean Oil Cooler.
b. Air is circulated from the back of the Oil Cooler there-
fore,
it is especially necessary that this area be kept
clean. Use a small brush, air pressure or water pressure.
NOTE: BE SURE TO REPLACE GUARD AND SHIELD
AFTER CLEAN ING,
2.REPLACE HYDROSTATIC TRANSMISSION FLUID FIL -
TER. Refer to page 7.
~,.-------WING NUT
AIR FILTER
COVER
FOAM
PRE-CLEANER
.---PAPER
AIR FILTER
ELEMENT
FIGURE 26
ENGINE
COO LING
3.REP LACE OIL FILTER (FIG. 27). - 9 - .__;;;;:;__;;;;.iiijii; ...... ~~~·----·
another free manual from www.searstractormanuals.com

FIGURE 28
AIR INTAKE
HOSE
FIGURE 28A
\
EVERv TI[OOJ HOURS
1. CLEAN SPARK PLUGS A ND RESET GAP
Wire brush carbon deposits
from Spark Plug Electrodes and
reset
gap at .025 inch. (Fig. 28). Replace Spark Plugs if
they show signs of foulin!l or electrode erosion.
2.CH ECK BREAKER POINTS
Replace Points if they are pitted or burned.
a. Remove Air Intake Hose that connects to Blower Hous·
ing (Fig. 28A). This provides an access to view Timing
Mark.
b. Remove Spark
Plugs and Belt Guard and turn Engine
Pulley (Fig. 17) clockwise by hand until 21°BTC mark
on
gear cover aligns with mark on flywheel. Turn anoth-
er 1/4 turn to ensure points are fully open.
c. Remove Breaker Box CovP.r (Fig. 29) by loosening Screw
and
lift off to remove.
d. Replace Points,
if necessary.
e. Using an Allen Head Wrench, adjust Set Screw for .021
inch between Points. Measure Point Gap with a Flat
Feeler Gauge. NOTE: MAKE SURE FEELER GAUGE
IS CLEAN AND FREE OF GREASE, O IL, OR DIRT.
No other adjustment or alignment is necessary. Setting
point gap accurately adjusts Engine Timing.
f.
Replace Breaker Box Cover. Spark Plugs and Cables
and Air Intake Hose.
3.LU BRICATE BA LL JOINTS
a. Move Rubber Boots to expose Ball Joints on Tie Rods
and Steering Li
nk (Fig. 31 ).
b. Coat Ball Joints
with Silicone Spray Lubricant.
c. Reposition Rubber Boots.
EVERY ~ HOURS
1. REPLACE PAPER AIR FIL TER ELEMENT
Refer to page 9.
2 . REPLACE BREAKER POINTS
Refer to step 2, above.
AS NEEDED
1. R EPLA CE IN - LINE FUEL F ILTER
If fuel fi lter is clogged, obstructing fuel flow to carburetor,
replacement
is required.
a. With Engine cool, remove and plug Fuel Line Sections
as removed from both ends of Fuel Filter (Fig. 30).
b. Place new Fuel F ilter in position in Fuel Line.
BE SURE THERE
ARE NO FUEL LINE
LE AKS AND THAT FUEL LINE IS IN
PROPER PO S ITION IN HOSE CLAMPS.
2.TOE-IN ADJUS TMENT
If any parts in Front Axle or Steering Mechanism are being
replaced. Tie Rod adjustment is required.
a. Loosen Jam Nuts (Fig. 31) at each end of Tie Rod Ad·
justment Sleeves.
b. Adjust both Tie Rods so that Tie Rod Joints measure
from 10 to 10 - 1/8 inches from center to center.
c. Tighten Jam Nuts. making sure Tie Rod Joints are par·
allel
(180°) to each other. This adjustment secures
proper Front Whee l Toe-in and steering operation.
3. RETENSION V- BELT
It may be occasionally necessary tore -tension V-belt page 7.
another free manual from www.searstractormanuals.com

4.PARK BRAKE ADJUSTMENT
If the Parking Brake will not hold tractor, Parking Brake
adjustment
is necessary.
a. Remove Cotter Pin and Clevis Pin from Yoke (Fig. 32).
b. Turn Yoke one full turn clockwise on Parking Brake
Rod. Replace Yoke
on Brake Arm and secure with
Clevis Pin.
c. Place by -pass valve handle(Fig. 34A) in the "OPEN"
position.
d. With parking brake handle in
"LOCK" position (Fig.
34A) L.H.rear tire should slide when tractor is pushed.
If tire does not slide, repeat steps a and b.
e. Replace Cotter Pin in Clevis Pin.
f. Rotate by-pass handle(Fig. 34A) to"CLOSE" position.
g. If tractor is to be operated, push down on parking
brake handle
to "UN LOCK" brake.
5.CARBURETOR ADJUSTMENT
If Engine lacks power or does not idle properly, the Car-
buretor may need adjustment.
a. Main Fuel (High Speed) Screw (Fig. 33) should notre-
quire adjustment. If resetting is necessary, turn clock-
wise, closing finger
tight O NLY , th en turn counterclock-
wise 1- 1/4 turn.
b. Turn Idle Adjusting Need le (Fig. 33) clockwi~e. closing
finger tight ONLY, and then turn counterclockwise
one turn.
c. Start Engine and allow to warm for five minutes.
d. Make final adjustments with Engine running and Drive
Control Lever in Neutral position.
-- Turn Idle Ad~usting Needle counterclockwise until
Engine runs 'rough" then clockwise until Eng ine
begins to miss. Return Needle to a point midway bP.-
tween these extremes.
-- Throttle Stop Screw (Fig. 33) should
not require ad-
justment. If resetting is necessary, set to obtain the
slowest engine
speed that will allow smooth accellera·
tion.
6. BELT REPLACEMENT
a. Remove Belt from Clutch Idler by depressing Clutch·
Brake Pedal (Fig. 34).
b.
Remove Belt Guide from Engine Pulley.
c. Remove Belt Guide Weldment from Pump Pu lley.
d. Loosen Fl at Idler Assembly on R.H. side of Tractor
Frame.
e. Remove Belt from Engine Pulley, between Belt Guide
Finger (note position
of Belt) and Flat Idler, and Pump
Pu lley.
f. Place new Belt around Pump Pulley. Then place Belt
between Belt Guide Finger and Flat Idler and then
around Engine Pulley.
g. Depress Clutch -Bra ke Pedal and slip Beltover the top of
the Clutch Idler.
h. Replace Engine Pulley Belt Guide and Pump Pulley Be lt
Guide Weldment. Tight en Flat Idler Assembly. NOTE:
Make sure Belt Guide Finger on F lat Idler is parallel with
slot in Tractor Frame.
i. Check Belt Tension, page 7.
TRACTOR
FRAME
CL UTCH-
BRAKE
---- ----PEDAL
'-= ,......, ..._ _PUMP
PULLEY
FIGURE 32
FIGURE 33
FIGURE 34
another free manual from www.searstractormanuals.com

FIGURE 35
LUG NUTS
~
~~
~
F IG URE 36
STORAGE
1.ENGINE OIL
Drain (with engine warm) and replace with clean engine o il.
Refer to page 7.
2. FUEL SYS TEM
a. Drain fuel tank and ca rbure tor by al lowing the eng i ne to
run out of gasoline. NOTE: GASOLINE LEFT IN YOUR
ENGINE
WILL LEAVE GUM DEPOSITS CLOGGING
FUEL SYSTEM.
b. Dispose of gasoline if not to be used. NOTE: GASO·
LINE STORED FOR SEVERAL MONTHS LOSES
ITS
VOLATILITY (ABI LI TY TO BURN EFFECT-
IVELY).
3. CY LIN DER
a. Remove Spark Plugs.
b. Pour one ounce
of oil through spark plug holes into cy-
linders.
7. CL EAN BA TT ERY A ND TER MIN ALS
Corrosion and dirt on th e Battery and Terminals cause
the Battery to "leak" power and hinders the operation of
the charger.
a. Remove the Battery from the Tractor and wash with
four tablespoons of baking soda to one gallon of water.
NOTE: BE CAREFUL NO T TO GE T THE SODA
SOLUTION
INTO THE CELLS. Rinse the Battery with
plain water, dry and reinstall on Tractor.
b. Clean terminals and Battery
Cables with a wire bursh
until bright. Replace Battery Cables. Coat terminal
connections
with Vasoline.
S. TIRE CARE
a. Ma intain ti re pressure in front and rear tires of 12 pounds.
b. Keep tires free
of gasoline, oil, or insect control chemi-
ca ls which can destroy rubber.
c. Avoid stumps, stones, deep ruts and other hazards that
may cause ti re damage.
d. Removing
front wheel for tire repair (Fig. 35).
·· Block up front axle securely or use a Sears Tractor
Jack.
Rear wheels should also be blocked to prevent
roll.
·· Remove Hex
Bolt and Dust Cap.
·· Remove Nut, Wear Washer, Pin and Washer to allow
wheel removal.
·· Repair tir e and reassemble.
e. Removing r
ear wheel for tire repair (Fig. 36):
·· Block up rear axle securely or use a Sears Tractor
Jack. Front wheels should also be blocked to prevent
roll.
·· Remove the five Lug Nuts.
-Repair tire and reassemble. Tighten Lug Nutssecure-
ly .
!. FINISH
Keep tractor finish free of gasoline, oil, insect chemicals or
ba ttery electrolyte. Protect painted surfaces with Automo-
tive type wax.
c. Turn ignition key to "STA RT" position for a few
seco nds to distribute oil.
d. Replace Spark Plugs.
4
.BAT TE RY
a. Remove battery if tractor is not used regularly during
winter months. Store in cool, dry place (above 50°F).
NOTE: DO NOT STORE BATTERY DIRECTLY ON
CEMENT SURFACE.
b. Check electrolyte charge each month and recharge if
below 1.225 specific gravity. NOTE: BATTERIES NOT
IN USE FOR SEVERAL MONTHS AND NOT KEPT
FULLY CHARGED, PRODUCE SULPHUR DEPOSITS
ON PLATES WHICH
CANNOT BE REMOVED BY
RECHARGING.
5
.G E NERA L CLEAN IN G
Clean engine, battery, finish, etc.
of all foreign matter.
-12.
another free manual from www.searstractormanuals.com

TROUB LE SHOOTING
POSSIBLE CAUSE
WI
LL N<? T S TAR T . II II II II ••
Dnve Control Lever m F or R pos1t1on
Attachme nt Clutch Pedal in "ON" position
No
gas oli ne in Fuel Tank, clogged F ue l Lin e
Fi lt er or Fuel Lin e
Blown Fuse
Dead Battery
H
ARD TO S TART
Choked impro per ly, flooded Engine
Clogg ed Fuel Li ne F ilter
Clogged Fuel Tank
Dirty Air Cleaner
Spark
Plugs dirty or improper gap
Defective Battery
Defective Ignition
or loose wiring
Water in gasoline or old fuel
Improper Carburetor adjustment
ENG IN E MI SSES OR LACKS POWER
Engine overload
Clogged Fuel Li ne F ilter
Clogged Fuel Tank
Partially plugged Air Cl eaner
Improper Carbur etor adjustment
D
irty Air Screen
Low oil level or d irt y oil
Sp ark Plugs d irt y. improper gap or wrong typ e
Faulty ignition
Poor compression
Oil in gasoline
ENGINE
OV ERHEATS
Dirty Air Screen
Low oil level or dirty oil
Dirty Engine
Partially plugged Muff l ers
Partially plugged Air Cleaner
Stale fuel
or improper Carburetor adjustment
NO LIGHT S
No Headlights or Taillight with Light Switch Knob
pulled out
WON'T CHAR GE
Blown
Fuse
Defective Batte ry
WILL NOT MOVE
By-Pass Valve open
Hydrostatic Transmission
Fluid very low
· 13 -
PO SSIBLE REMEDY
Move Lever
to " N" position
Mo ve Pedal to "O FF" posi ti on.
F ill Tank wi th Gaso line. Check Fuel Line, Fuel
Lin e F il te r an d Car bur e to r (clean if necessa r y) .
Check for fault and 1eplace Fuse
Recharge or repl ace Battery
Push Choke in, place Throtlle Control 1n middle posi·
tion and run starter several times to clear out gas
Remove and replace
Remove and clean
Remove and clean
Clean. adjust
gap or repl ace
Recharge or replace
Check the wiring and Spark
Plugs
Drain Fuel Tank and Carburetor, use fresh fuel an d
clean Spark Plugs
Make necessary adjustments
Reduce load
Remove and repl ace
Remove and clean
Remove and clean
Make necessary adjustments
Clean Air Screen and Cylinder Fins
Add
or change oil
Cl
ean. reset gap or repl ace
Check Spark Pl u gs und for loose wires
Ma
jor Eng i ne overhaul
Drain and refill
Gas Tank dnd Carburetor
Clean Air Sc reen
Add or change oil
Clean Cylinder Fi
ns
Remove and clean Mufflers
Remove and cl ean
Use fresh fuel and adjust Carburetor
Check Light Fuse behind dash and wire connections.
Replace Taillight Bulb or Sealed Beam Headlights
Check for fault and replace
Replace
Close valve. Refer
to page 3.
Add
fluid, refer to bottom of page 8.
Sears, Roebuck and Co. or Simpsons·Sears Ltd., in Canada re·
serves the right to make any changes in design or improve·
ments without imposing any obligation to install the same
upo n its items her etofore manufactured.
another free manual from www.searstractormanuals.com

REPAIR PARTS
SEARS 18TWIN HYDRO GARDEN TRACTOR--MODEL NO. 917.257070
MAIN FRAME, DASHBOARD AND GRILL
71
67
53
i
52
,... {,),' w
~~ ,.[i"54 ~-49
l;/'1((@)~~3/ - 44 G
·- "" 'I a o 1
R '( ,
45~ 47~
46 ~
16
63
38
~ I 23
23 24
72 v7· 271
22 -- -!: ' F-73 ~
"-~21 ---
ft : ~ . 20 1 19
AA 25 2& • ' f :· ~·u
"f 97 I ·-- ~ -- · ---
: ~~ 20 \' 2a ? u f
~42 117 18
33
29
30
A 8 C 0 E F G H J K M N 0 PaR
Cl 74 1'l 83 w 84 ~ 94 i 109lJ 95 ~ 116 1f 98,99,100 y 102 i ~ 104,114184 ~
- 88 6J Y w = 39 iJ =
89
=
93
_ 118 II _.
= 89 = 39 qj!O' 31 -=- 31 ~,... 21 a::I7 90 -- 88 = 93 - - 21 <:::::r 39 = 39
[]) 32 C) 22 a:D 74 -21 ~ 21 31 c::= 39
= 115~ 32 S T U V W X Y Z e~ 22 c:e-
qj!O' 31
1
84 .. 106 I 107 @t 108 I I lfP ~ 110 C) 32 I[I) 111
o '"' 113 114 B 103 1
~ 32 """' 21 c::.=..-, 112
-
31 ~ 31 - 88 = 39 ® 91
'-"~' 31 ® 92
I[I) 32 I[I) 32
. 14 .
another free manual from www.searstractormanuals.com

REPAIR PARTS
SEARS 18 TWIN HYDRO GARDEN TRACTOR--MODEL NO. 917.257070
MAIN FRAME, DASHBOARD AND GRILL
KEY PART DESCRIPTION
KEY PART DESCRIPTION
NO.
NO.
NO. NO.
1 283J Decal- "Hydrodrive"
61 634A957 Engine, Onan 18 H.P. Twin Cylinder
2 284J Decal • Model Model No. B48M-GA018/3475A
3 8028R
Decal · Maintenance 62 106J Battery Support
4 634A907 Hood Assembly 63 906J Battery Support Bracket · L.H.
5 9880R Decal
·Wiring
64 8855R Battery Tray
6 2794R Grill Screen· Center
65
9860R Decal · Lower
Dash
7 886J Decal · "sears" 66 2754R Choke Control
8 911J Upper Grill
67 9853R Throttle Control Lever
9 885J Decal·
Sears Logo
68
9776H Choke Control Clip
10 98J Rectifier Bracket 70 9859R Decal· Upper
Dash
11 7937R Lower Grill
71 5123R Dashboard
12 7938R Grill Side
72 634A901 Pedal Weldment P.T.O.
13 2674R Grill Screen· L.H. 73 634A930 Lever Weldment
14 2673R Gri
II Screen • R. H. 74 STD541025 *Hex Nut 1/4 · 20 UNC
15 8058R Grill Cable 75 91J Pivot Spacer
16 104J
Muffler · Front 76 7874R Hood Seal
17 10 5J Muffler · Rear
77 9687R Battery Heat Shield
18 7810H Gripco Centerlock Nut 3/8 • 24 UNF 78 93J Rubber Pedal
19 634A494
Hanger Weldment · R.H., Front 79 267J Foot Pedal
20 1689E Bushing
80 8205R Throttle Wire and Casing
21
STD551131 * Lockwasher
5/16
81
8204R Throttle Clamp
22 STD541031 *Hex
Nut 5/16 · 18 UNC 82 8203R Throttle Knob
23 878J Gasket· Exhaust Manifold
83 STD523715 *Hex Bo It 3/8 · 16x 1· 1/2
24 89J
Link 84 STD523710 *Hex Bolt3/8·16x 1
25 634A492 Switch Bracket Assembly 85 634A355
Front Hanger Weldment · L.H.
26 634A491 Belt Tightener Arm and Idler Shaft
86
2506P Cotter Pin
1/8 x 1
Assembly 87 86J Cover- L.H.
27
92J
Speed · Nut/Push-on
88
STD551125 * Lockwasher 1/4
28 STD523115 *Hex Bolt 5/16 · 18 x 1 - 1/2 89 STD551025 * Washer 9/32 x 5/8 x 16 Ga.
29 634A934 Chassis f.ssembly with Bearings (Inc. 90 1605H Locknut 1/4 · 20 UNC
Key Nos. 9 and 24, page 16)
91 STD551110 * Lockwasher No. 10
30 5080R U-Bolt ·Axle Clamp 92 STD541010 *Nut No. 10 · 24 UNC
31
STD551137 *Lockwasher
3/8
93 STD551031 *Washer 11/32 x
11/16 x 16 Ga.
32 STD541037 *Hex Nut 3/8 · 16 UNC 94 6055P Hex Slotted Hd. Mach. Screw
33 634A638 Drawbar Weldment w/Sems Int. Tooth Lockwasher
34 6143R Decal·
By-Pass Valve No.10 - 32x 1/4
35 5628R Decal· Parking Brake 95 STD601005 *Cutting Screw, Phillips Pan Hd. Thd.
36 5109R
Filter Mounting Bracket No. 10 · 24 x 1/2 Type T
37 6204R Oil Filter Shield 96 1545P Flat Washer 17/32 x 1 x 16 Ga.
38 634A903 Battery Support Bracket (Inc. Key 97 STD523710 *Hex Bolt 3/8- 16 x 1 · 1/4
No. 59) 98 STD601003 *Cutting Screw, Phillips Pan Hd. Thd.
39
STD551037 *Washer 13/32 x 13/16 x 16 Ga.
No. 10 · 24 x 3/8 Type T
40 811J Neutral Adjustment Cover 99 STD522515 *Hex Bolt 1/4-20 x 1 · 1/2 Gr. 5
41 7729R Cover· R.H. 100 STD522505 *Hex Bolt
1/4-20 x 1/2
42
8115R Retainer
Nut 3/8 · 16 UNC
43 634A884 Engine Mount Assembly
44 4939M Retainer Spring 102 STD523110 *Hex
Bolt 5/16 · 18 x 1
45
8704H1 Spacer 103 STD523107 *Hex Bolt 5/ 16 -18 x 3/4
46
5621 R Belt Retainer 104 STD533107 *Carriage Bolt 5/16 · 18 x 3/4
47 96J Grill Spacer 105 879J Clip· Cable
48 8245R Belt Retainer Finger 106 5557P Cutting Screw, Hex Washer Hd. Thrd.
49
3154P Machine Screw, Slotted Fillister Hd.
1/4-20 x 1/2 Type 1
1/4-20x2-1/4 107 STD523710 *Hex Bolt
3/8 · 16 x 1 · 1/4 Gr. 5
50 2672R Grill Screen· Upper 108 4540P Set Screw, Hex Forged Socket Hdless.
51 634A663 Belt Guide Weldment 5/16 · 18 X 1/2
52 8238H Split Spacer 109 50P Carriage
Bolt 3/8 - 16 x 2 - 1 /4
53 347H Huglock
Nut 1/4- 20 UNC 110 53P Carriage Bolt No. 10· 24 x 1/2
54 634A662 Belt Guide Weldment 111 5394H Locknut 3/8 · 16 UNC
55 634A665 Engine Pulley (Inc. Key No. 108) 112 1535P
Washer 7/32 x 7/16 x 18 Ga.
56 9396E Square Key 1 /4 x 2 113 STD522507 *Hex Bolt 1/4 · 20 x 3/4
57 875J Grill Brace 114 STD523712 *Hex
Bolt 3/8- 16 x 1 · 1/4
58 302J Guard Wire 115 1557P *Washer 13 /~2 x 13/16 x 11 Ga.
59 7756R Idler Bearing 116 STD523108 *Hex Bolt 5/16- 18 x 7/8
60 8006R Idler Shaft Cap
117 7948R Return Spring
118 3366P Socket Hd.
Cap Screw 5/16 · 18 x 3/4
*STANDARD HARDWARE--PURCHASE LOCALLY
-15.
another free manual from www.searstractormanuals.com

REPAIR PARTS
SEARS 18 TWIN HYDRO GARDEN TRACTOR--MODEL NO. 917.257070
~ 1A
SEAT AND STEERING
33
29
28
A B c D E F G H J
I(
L M
f67 f .. V .. J 70 I" yn
@ 64
!: 175
176
yn j 78
@ 61
@ 53 @ 53 ®
54
~
55
@ 3 ®s1
@63 @21
$63
®2 3 @ 62
~ 3 @
63
p a R
~ 56 ® 59 @ 53
~ 66@ 3 @
59
@61 @ 3
~ 57 @ 60
e64 ®59
~79 175 180@58
®59
~ 3
@62
@) 3
~5 9
- 16 ·
16
14 J
~~
N
,77
@ 61
another free manual from www.searstractormanuals.com

REPAIR PARTS
SEARS 18 TWIN HYDRO GARDEN TRACTOR--MODEL NO. 917.257070
SEAT
AND STEERING
KEY
PART DESCRIPTION
KEY
PART DESCRIPTION
NO. NO. NO.
NO .
;,. 1 641J Steering
Wheel Insert 41 2693R Fuel Tank
1A 372J
Decal • Sears
42 7293R Fuel
Gauge
2 STD523710 *Hex
Bolt 3/8 · 16 x 1 43 815R Fuel Line Fitting
3 STD551137
*Lock washer 3/8
44 2650R
Bracket· Fuel Tank
4 1559P
Washer 7/16 x 1 x 10 Ga.
45 2751R Clip • Fuel Line
5 2700R Steering
Wheel
6 STD582075 *E-Ring 48 8765H
Foot Pedal Bracket
7 9007H
Cap
49 8882R
Foot Pedal
8 5949H Rubber Bushing 50 8899R Insert-Clutch-Brake
9 6468H Bearing
51 940J Foot
Pedal Shaft
10
6999R Clamp · Fuel I : ne
52 8178R Foot Rest • L.H.
11 7833R Fuel Line (Short) 53 STD551131
*Lock washer 5/16
12 8900R
Decal (Attach. Clutch) 54 STD541437
*Locknut 318 · 16 UNC
13 7904R Foot Rest· R.H. 55 1578P
Washer 3/4 x 1 · 1/8 x 11 Ga.
14 1527P
Washer 21 /32 x 7/8 x 16 Ga . 56 1560P
Washer 17/32 x 1 · 1/2 x 11 Ga.
15 STD581062 *E-RinA 57 STD551150 • Lockwasher
1/2
16 7895R Steering Shaft Spacer 58 STD541050 *Hex
Nut 1/2 • 13 UNC
17 9858M1 Woodruff Key
3/16 x 5/8 59 STD541037 *Hex
Nut 3/8 · 16 UNC
18 1553P
Washer 57/64 x 1 -1/4 x 16 Ga. 60 STD541031 *Hex
Nut 5/16 · 18 UNC
19 279J Decal· Sears
61
STD551125 *Lock washer 1/4
20 1165J
Spacer · Taillight Bracket 62 STD551037 *Washer 13/32 x
13/16 x 16 Ga.
21
1557P Washer 13 /32 x 13/16 x 11 Ga.
63 STD551025 *Washer
9/32 x 5/8 x 16 Ga.
22 634A775 Steering Shaft & Pinion
64 STD541025 *Hex
Nut 1/4 · 20 UNC
23 1519P
Washer 15/32 x 1 x 12 Ga.
66 5394H Locknut 3/8 · 16 UNC
24 4766H Bearing
67
STD523107 *Hex
Bolt 5/16- 18 x 3/4
25 8054R
Rear Tire ·Tubeless 23 x 10.00· 12 68 STD523108 *Hex
Bo lt 5/16 · 18 x 7/8
26 469J
Rear Wheel
69 3022P Hex
Bolt 3/8 · 16 x 7/8 Gr. 5
27 795R Tire Valve 70
52P
Carriage Bolt 1/2 · 13 x 1 • 1/4 Gr. 5
28 5125R V-Belt (Ground Drive)
71 61P
Sq. Nk. Carria ge Bolt 3/8 · 16 x 1 Gr. 5
29 9428R Fender· R.H. 72 STD533110 *Carriage
Bolt 5/16 · 18 x 1
30 634A814
Hanger We ldment - Rear 75 STD523712 *Hex
Bolt3/8-16x 1 - 1/4
31 2656R Bracket
·Taillight 76 STD523710 *Hex
Bolt 3/8 · 16 x 1
32 8545R Fuel Line (Long) 77 STD522510 *Hex
Bolt 1/4-20 x 1
33 8177R Fender · L.H. 78 STD523707 *Hex
Bolt 3/8 · 16 x 3/4
34 8141H
Seat Spring Reinforcement 79 5137R Lug Nut
35 5404R Seat Spring 80 STD523715 *Hex
Bolt 3/8- 16 x 1-1/2
36 634A533
Seat Plate Weldment
81 STD551031 *Washer 11/32 x 11/16x
16 Ga.
37 266J Fuel Line Filt er 2557R
Grease Cartridge Amdex No. 1 E.P.
38 634A532
Seat Bracket Weldment (Not furnished
with your Tractor)
39 268J
Seat
53J Warranty Tag
40 2663R Bracket
Seat Pivot 638J Owners Manual
*STAN DARD HARDWARE--PURCHASE LOCALLY
...
-17-
another free manual from www.searstractormanuals.com

REPAIR PARTS
SEARS 18 TWIN HYDRO GARDEN TRACTOR -- MODEL NO. 917.257070
KEY
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
I
I
I
I
I
I
I
I
I
I
I
I
I
~1
~2
e---3
I 9
~
I
I
PART
NO.
STD581075
1528P
1309H
634A 521
329 4P
634 A2 77
9040H
7810H
2515R
7838R
6855M
1505P
4764H
634A278
85 15 R
STD541350
634A819
559P
8514R
634A813
1552P
6842M
7837R
634A98
2169R
2 1A . ·--· 24
DESCRI PT ION
:~~22
*E ·Ring
Washer 13/ 16 x 1 - 1/4 x 14 Ga .
Bearing
Front Axle w/Bearings (Inc. Key No.3)
Hex Bolt 5/8 · 11 x 5 Grade 5
Spindle Co mplete· R.H.
flanged Beanng
Gripco L
ocknut 3/8 • 24 UNF
Hardened Washer
KEY
Tie Rod and Joints (Inc. Key No's. 15, NO.
16,17,18&19)
Grease Fitting
26
Wdste• 9/32 x 1 /2 x 14 Ga. 27
Huglo ck N ut 5/8 x 11 UNC 28
Spindle Complete · L.H. 29
Tie Rod Joint (R.H. Thread)
30
*Hex Jam Nut 1/2 · 20 UNF 31
Tie Rod and Nuts (Inc. Key No's. 16 & 18) 32
Hex Jam
Nut 1/2 · 20 (L.H. Thread) 33
Tie Rod
Joint ( L. H. Thread) 34
Steering Ge
ar Sector and Arm J7
W asher 49/64 x 1 · 1 /4 x 16 G a. 38
Grease Fitting
Drag Link and Joints
Steering Bell Crank Weldment
Front Ti re ·Tubeless 16 x 6.50 · 8 . 1
8.
A
y37
[])
38
27
PART
NO.
6856M
795R
46 7J
1562P
8798H
8785H
4831H
8763H
STD523120
STD623710
STD541337
I
®---9
2\~8
~ 28
DESCRIPTION
Grease Fittmo 11t1 ..,e T .. f-oCI -.md.
T 1re V alve
Fr ont W heel (Inc. Ke y No's. 7 & 2 6)
Washer 25/32 x 1 · 1 /2 x 16 Ga .
Roll Pin 5/32 x 1
Wear Washer
Elastic Nut 3/4 -16 UNF
Dust
Cap · Outer
*Hex Bolt 5/16 · 18 x 1/2
*Hex Bolt 3/8 · 24 x 1
*H ex J am 3/8 · 24 UNF Lo cknut
*STANDARD HARDWARE -- PURCHASE LOCALLY
another free manual from www.searstractormanuals.com