Sears 917.25630 User manual

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Sears
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MODEL NO. ~'{;
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917.25630 '
CAUTION:
_Read Rules for
Safe Operation
and Instructions
Careflilly
:. AssembJy
~ Operating
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• , r<If' ain tenance
:' f~epa ir Parts
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O~fnerS man 'ual
SUBURBAN
12 H.P. TRACTOR
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SE A RSf ROEBUCK AND CO. u.S.A T· ,, ·,,!. '. 11
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SIMPSONS- S EARS LIMITED, CANADA
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ISears I
TRACTOR
GUARANTEE
Your tractor is guaranteed for one full yeor. If ony defect in material or
workmanship
should appear during this time, simp ly contact our nearest store
or service center throughout the Uni te d States or Canada. We will make all
necessary repairs, including parts and lobar, at no charge to you.
Tractors equipped with batteries: If battery proves defective and will not hold a
charge, in exchange for the
battery, we will:
During the first 90 days -replace battery at no charge.
After 90 days - replace battery, charging customer 1/ 12th
of the price of the new battery for each full month from
date of sale .
If the tractor is used for commercial or rental purposes, this guarantee applies
for thirty days.
SEARS, ROEBUCK AND CO.
SIMPSONS-SEARS
LTD.
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INDEX
DESCRIPTION
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PAGE NO. DESCRIPTION
PAGE NO.
Parts Identifi c ation and Features
2 and 3 Lubri
cation Chart
11
Rules of Saf et y 4
Belt Adjustment
12
Setting Up Instructions
5 and 6
Brake Adjustment
12
Fill and Charge Battery
5
Park Brake Lock Adjustment
12
Batt e ry Ins tallation
5 and 6
Wei ghts-Rear Wheel, Front and
Bel t Guard 6
Rear End 13
Before Starting the Engine
6 and 7
Battery Core - Important
13
How to Start and Stop Tractor
7 and 8 T
rouble Shooting
14
Ta Operate Tractor
8
Maintenance and Service
15
Safe Operat ion 9
Starter-Generator Belt Adjustment
15
Seat Posi tion 9 How to
Start if Battery is Low
15
Towing Tractor
9
Tires
16
Engine Pulley Grooves to Use for Winter
Care
17
Your Various Attachments
9 Storage
Instruct ions 17
Starter Air Screen
9
General
17
Air Cleaner
10
Repair Parts
18 thru 31
Engine Lubrication
10
Transaxle Lubrication
10
TO THE SUBURBAN OWNER
Please accept our congratulations on your investment in a Sears Suburban Tractor. We feel you will obtain
from your Suburban the economical and superior performance it is designed to give . It is certain that you
will de r ive a large measure of personal satisfaction from its operation .
Years of tractor manufacturing experience and contact with the actual customer have been combined with
advancements in engineering to produce all the features and refinements built into your tractor.
Properly adjusted, operated and maintained, this tractor will respond to every reasonabl~ demand you make
upon it and give you rei iable service for years to come.
MODEL NUMBER 917.25630
INSTRUCTION AND PARTS BOOK NO . 1135R
1135R ·4.1.71 - 1 -
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1135R - 4.1.71
~ ____ ~PARTS IDENTIFICATION
ENGINE:
(HEel( Oil lPJEl .... nn fVE_" S HOU'S Of OPUATION
CHANGE Oil (AFTU fl.STI EACH 15 HOU'S Of OPERATION
TRANSAXL(:
CHECK Oil (VEtl ~ MOUIS Of OPUATION
CHANGE Oil .... nEt UCH SIlO HOURS OF OPElAllON
AIR CLEANER:
ClfAN CARlUUTO!t All ClEANEt PUtOOIC,t,ll.Y
ON RECOIL STAn ENGINE. KEEP POlY·DONUT ClEAN
ON EUelltC START ENGINE, KEEP SCREEN elf"'N
LU~IUCATlON:
flONT SPINDLES EVEty 5 HOURS Of OPUATION
FlIONT WHEElS EVEn 5 HOUIS Of OPERATION
S'U'I~ MECH"NISM EVERY 5 HOURS Of OPERATION
TIRE PRESSURE:
4.90/4.00 x 8-15 las . I/> J( 500 x 8-15 Las
23 Ii: 7.<;0 X 11--i lIS 13 X 8. !KI X 12-3 LIS
BRAKE:
J(fEp IIItAI(E. AND PARKING IIIAKE LOCK. IN AOJUSTMENT
BATTERY:
("1(1( SOlUTION LEVEl EACH WEEK ADO DISTILLED WAIU
If NEC£SSAav
FIG. 1
- 2 -
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PARTS IDENTIFICATIOS
1. MAINTENANCE REMINDER
(Located on Underside of Hood)
2. AMMETER
3. I GNITION SWITCH
4. LI GHT SWITCH - Headlights and Toil Light
5.
CHOKE
6. T HROTTLE CONTROL LEVER
7. TOOL BOX
8. PARKING BRAKE
9. FOOT REST
10 . GEAR SHIFT LEVER
11. DR I VE, CLUTCH AND BRAKE PEDAL
12 . STARTER AIR SCREEN
13. RANGE SHIFT LEVER (High-Low Range)
14 . MODEL NUMBER PLATE
15 . FUEL TANK CAP AND GAUGE
16 . OIL FILLER CAP AND DIP STICK
17. ENGINE OIL DRAIN PLUG
18 . BEL T GUARD
19 . FUEL TANK SHUT-OFF VALVE
20 . CARBURETOR DRAIN
(Loca t ed on Right Hand Side)
. YO U CA N DO MANY JOBS EASILY WITH THE
WIDE VARIETY OF ATTACHMENTS BUT,
FI RST OF ALL BE CAREFUL!
00 NOT START, RUN OR REFUEL IN A
CLOSED BUI LDING.
ONLY ONE PERSON ON THE TRACTOR AT
A TIME.
FIG.2
1135R-4 . 1.71 - 3-
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18-it-i
17
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~\JLES OF 5AI=£)-
EXTRA JOBS EASIER ~
NO RIDERS!
1135R ·4. 1.71
WITH WIDE VARIETY GET TO KNOW
OF ATTACHMENTS THE TRACTOR AND
- 4-
ITS CONTROLS
LOOK BEFORE
BACKING !
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SETTING UP INSTRUCTIONS
A number at the beginning of a parograph in the following instructions refers to on arrow in the adjoining figure except
when otherwise stated. When R.H. (Right Hand) and L.H. (Left Hand) are used, it should be understood to mean from a
position behind and facing the tractor (or direction of trovel). Reference to "front" indicates the engine and hood end
of fractor, and the urear" th e tron smi 5 sian.
1. Remove carton from around tractor. You have an electric start tractor, remove battery from crate bottom and prepare
for operation as given below. This will require about 2Y2 to 3 hours of time.
2. Cut banding holding tractor to crote bottom.
3. Tires were over-inflated for shipping purposes. Reduce air pressure to 15 Ibs. in front tires arrd 8 Ibs . in rear tires.
4. This troctor has been completely assembled at the factory, except for, battery installation. The battery was shipped
dry. Below are instructions for filling and installing battery.
5. Lubricate the tractor , refer to Lub Chart page " l1.
6. Add fuel. Use a good grade of regular, clean; fresh gasoline . Do NOT mix oil with gasoline. Refer to page 7.
FILL AND CHARGE BATTERY
CAUTION: DO NOT ASSEMBLE BATTERY TO
TRACTOR UNTIL BATTERY HAS BEEN
FILLED AND CHARGED.
1. Fill ballery with electrolyte and charge bollery
as outlined in instructions in battery container.
NOTE; After filling cells, let bollery stand for
thirty minutes. Then charge battery ot a rate not
exceeding three' (3) amperes for about 2 71 hours.
FILL BATTERY AS SHOWN
,
DO NOT OVERFILL!
• CORRECT LEVEL IS
BOTTOM OF TUBES IN CELLS ..
CUT·AWAY VIEW
OF BATTERY
f"'J--i+-_BATTERY
TUBE
-5-
--
-- -----
--- --- ....... -'"'-
---;.... -----
----- - ....... -..-"""
.... ---- ------ BATTERY
- - - - - - '""'-:::::";-~,,-;;f'r-
--- -ELECTROLYTE ...... -....."':- CELL
1135R·4 . 1.71 . . • - -
BATTERY INSTALLATION
FIG. 3
2. Lift cowling, refer to Fig . 8. Assemble clamp
(A), to one of two bollery bolts (B). Flat washer
and wing nut above clamp as' shown in Fig. 3.
Hook the bolt into reor of ballery support (C), and
turn clomp to the side as shown to allow
positioning of battery. Bolt, clamp, washer and
wing nut shipped in plastic bog located beneath
cowring . Battery installation continued on page
6.
READ CAREFULLY ALL SETTING·
UP, OPERATING AND MAINTENANCE
INSTRUCTIONS IN THIS MANUAL.
YOU WILL FIND MANY HELPFUL
POINTERS WHICH WILL NOT ONLY
SAVE YOU TIME BUT WILL HELP YOU
OPERATE THE TRACTOR MOST
EFFICIENTLY.
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BATTERY INSTALLAT ION - Conti nued
FIG.4
3. Slide battery into position as shown, with term-
inals to center of tractor.
4. Hook the bottery bolt (B), into the front of the
bottery support (C). Assemble clomp (A), to bolt
(B), with the remaining washer and wing nut.
Tighten both wing nuts securely.
5. Connect starter switch cable (D, red cover), to
plus (+) terminal. Tighten nut securely . Nut
shipped in plastic bag. Press cable cove r
(black) down over terminal.
6. Connect ground cable (E, black cover), to neg-
ative (- ) terminal. Tighten nut securely. Nut
shipped in plastic bag.
BELT GUARD
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A
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1135R.4.1.71 FIG.5
-6-
1. T he be lt guard (A, Fig. 5), is used for th e
Rotary MowerI Cu t ter Bar Mower and Ro tary
Snowplow. However, this be lt guard can be left
in p lac e for normal tractor operation even whe n
one of the above attachments are not being used.
The mach i ne screws, bush i ngs and nuts shipped
with guard should be stored in a safe place or
positioned in the guard for safe keeping .
I nstructions for the placement of the screws,
bushings and nuts were shipped in same plastic
bog.
BEFORE STARTING THE ENGINE
KNOW THE CONTROLS AND HOW TO STOP
QUICKLY. Become thoroughly fomiliar with the
operating controls before starting the engine .
DR I VE
FIG. 6
The following controls are used to opera te the
tractor :
1. Clu tch ond broke foot pedal is lo cated on the
left side foot rest. The foot peda l operates a
combination brake and drive clutch . There are
three positions of operation on t he foot p ede l.
a. The clutch is in DRIVE pos ition wh en th e
pedal is all the way out (i.e. whe n the f oo t is
removed from the pedal) .
b. The clutch is in NEUTRAL when the pe da l is
depressed half way or more .
c. The BRAKE is on w hen the pedol is p resse d
el l the way forward.
KNOW THE CONTROLS AND HOW TO STOP
QUICKLY --READ THE OWNERS MANUAl.
00 NOT ALLOW CHILDREN TO OPER~TE
MACHINE; NOR ADULTS TO OPERATE IT
WITHOUT PROPER INSTR U CTION.
ALWAYS START IN NEUTRAL.
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BEFORE STARTING THE ENGINE--Conlinued
FIG.7
BRAKE
ENGINE OIL
Q'=-
a
FUEL
2. The transmi ssion (transaxle) gear shift lever (A),
is located at front, center of seat.
a. The gear shift level selects the FORWARD
speeds, the NEUTRAL and REVERSE speeds.
3. The high-low range (B), is located on R.H. frame
side just forward of R.H. rear fender. The high-
low range lever has 3 positions, up for high-
range, center for neutral, and down for low
range. There are two neutral positions in
transmission, one on the gear shift lever, and
one on the high-low range lever. Both levers
m. ust be engaged for tractor to operate. Place
gear shift lever in neutral position for starting
tractor. Place high-low range lever in neutrQI
for easier pushing of tractor or when tractor is
being towed.
4. To engage park brake (C), push foot pedal all
the way down, pull backward on park brake lever
and release foot pedal. Push lever forward to
release brake
~
Steps 5, 6 and 7 refer to Fig, 8,
5. To lift cowli n g, grasp each side of cowling at
rear and pu ll outward and upward. Lift cowling to
its extreme position.
6. Engine crankcase is shipped with oi I ready for
use. However, check oil l evel before starting. If
necessary, odd oil to bring oil leve l up to the
full oi l mark on the dipstick, Dipstick must be
screwed in tight for checking oil level, and
tractor should be level. NOTE: Do not fill above
full mark on dipstick. Use Al lstate Regular
M. S. S.A.E. #30 oi l orequivalent.lf not available,
use Allstate Multi-grade all weather oil S.A.E.
lOW-20W-30W or equivalent. NOTE: Use S.A. E.
lOW ail below 32 degrees.
7. Fill fuel tank with a good grade of fresh, CLEAN,
regular gasoline. Wipe off all spilled fuel and
oil. Do not mix oi l with gasoline.
HOW TO START AND STOP TRACTOR
~l.
FIG.9
Open gasoline shut -off valve (A, Fig. 9). Close
gasoline shut-off valve after each days use.
u--.-:"'- __ _ - CAUT ION 2.
CAUTION: Before storting the engine, check to
be sure that control s are as follows:
III
,"-,
~~---::;~~~~:N:
' .... '
NEUTRAL
OIL F ILL ERP LUG ,--];~~"'FI.!'r ~',L--::;
AND DIP STICK
1135R-4.1.71
FIG.8
-7-
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a. Transmission gear shift lever (A, Fig. 7), is
in NEUTRAL.
b. The high-low range lever (B, Fig. 7), is on
NEUTRAL.
3. Your tractor is equipped with a safety start
switch. It is therefore necessary to depress foot
pedal all the way down (forward), refer to Fig.
6, before engine can be started.
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HOW TO START AND STOP TRACTOR--
Continued
CHOKE
FIG. 10
ENGINE STAAT
it'
FAST
4. Pull out choke control (A, Fig. 10), to full choke
position to stort in cold weather .
5. Advance throttle conlrol lever (B, Fig. 10 ),
6. Depress fool pedal all the way down and turn
ignition.start key (C), clockwis e to engage start·
er . When engine starts , release k ey . After engine
starts, push in choke contr ol (A), as engine
warmS up . Let engin e warm up bef ore appl ying
load.
CAUTION: Do not run starter continuously for more
than 30 seconds at a time . If after several attempts,
engine does not stort, move throttle control lever
l B, Fig . 10 ), to FAST position. Wait for two minutes
and try again.
7. Ammeter (D), indicates rate of battery charg e
or
discharge when ignition is on.
8. To stop engine, turn key (C, Fig. 10), in a
counter-clockwise direction to off position. Key
should be remov ed so chi Idren can not stort
tractor.
STORE YOUR TRACTOR IN A DRY AND
PROTECTED PLACE. LEAVING YOUR
TRACTOR OUTDOORS, EXPOSED TO THE
ELEMENTS, WILL RESULT IN MATERIALLY
SHORTENING ITS LIFE.
FILL THE FUEL TANK WITH CLEAN, FRESH,
REGULAR GRADE GASOLINE, PREFERABLY
AT THE END OF EACH DAY 'S USE . THIS
WILL FORCE OUT ANY MOISTURE LADEN
AIR AND PREVENT CONDENSATION IN THE
FUEL TANK . DO NOT MIX OIL WITH THE
GASOLINE.
113SR-4.1.71 -
8-
;, W .. d
CAUTION
CAUTION : AFTER OPERATING THE
TRACTOR OR ENGINE, NEVER TOUCH THE
MUFFLER UNTIL IT HAS HAD SUFFICIENT
TIME TO COOL.
TO OPERATE TRACTOR
1. Try your tractor in 0 large, open space. Learn to
start, stop and reverse .
2. Start the engine and put the throttle lever at
about Y1 thr ottle. Push down on foot pedal , move
gear sh jft lev er and range shift le ve r to speed
desired . Release foot pedal slo wly, an d t ractor
will start to move. After foot pedal is fully
released (c lutch engaged), move throttle lever to
fast position . If ground travel is too fa st, depress
f~ot pedal and shift to a slower ground travel
speed. Always select a ground tra v el speed so
that engine is not ov erloaded .
3. Do not shift gears whi Ie tractor is moving.
4. To stop tractor, push foot pedal all the way down,
move gear shift lever to neutral, set park brake
lock and re lease -foot pedal. Always check to
make sure brake lock wi II hold tractor secure .
Shut -off and remove key from sw itch . This will
prevent unauthorized op e ration. Ne ver leave
engine running with tr_ octor unattended.
DO NOT DECLUTCH GOING UP OR DOWN HILLS-
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If
SAFE OPERATION
1. Do not operate the tractor in high gear going down
hill, and do not turn sharp corners whi le going
down hi ll. If it is necessary to stop tract or while
going down hill, do so quickly to prevent tractor
from picking up speed during the declutching to
brake position.
NOTE: The engine produces considerable braking
action when throttled back to idling speed without
decl utchi ng, and th is procedure is recommended
before applying brake.
CAUTION
DO NOT OPERATE TRACTOR
ACROSS SLOPES OF MORE THAN
A 25 PERCENT SLOPE (14 DE-
GREES), OR UP OR DOWN SLOPES
WITH MORE THAN A 35 PERCENT
SLOPE (19 DEGREES).
3. Do not shjft gears while going up steep hills .
Choose a low enough gear to climb hill without
ENGINE PULLEY GROOVES TO USE FOR
YOUR VARIOUS ATTACHMENTS
l -
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ENGINE
f-
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\
1\
1\
.....
1/
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I....- ENGINE
,.-- PULLEY
stopping and shifting gears. If it is necessary to -
stop whi Ie going up hi II do so quickly to prevent MAIN DRIVE BELT
t- COMPOST MILL
~ ROTARY SWEEPER
'-POWER SPRAYER
. ' . . TO TRANSMISSION-
tractor roiling backward. Before starting tractor
in motion going uphill, use one of the lowest SICKLE BAR MOWER-
gears, reduce engine speed and engage' clutch ROTARY MOWER---!
gradually to prevent tractor from "re aring up". ROT~~~ .. S~~.WD:I nw.
4. Sideways upsets happen easi Iy in ditches. Be
ALTEt(NAIU
alert for holes or other hidden hazards . FIG. 12
5. If tractor becomes mired in a hole, try to bock out
rather than dr i vi ng forward.
FIG. 11
SEAT POSITION
The seat (A), may be moved towards the front or rear
to give the most comfortable riding position . To move
the seat, loosen the bolt (B),beneath the seat spring
and slide the seat to the position desired. Tighten
the bolt, making sure that the seat has not twisted
out of alignment with the seat spring.
TOWING TRACTOR
Place gear shift lever and range lever in neutral
position. Tractor can then be towed at a reasonable
safe speed.
1135R·4.1.71
-9-
STARTER AIR SCREEN
FIG . 13
The starter air screen, illustrated in Fig. 13, is
designed to keep grass, chaff and large leaves from
entering the cooling system and must be cleaned
periodically. The cleaning of this starter air screen
wi II vary with the' conditions in which the tractor is'
used. The starter air screen should not be allowed to
become too plugged or dirty which would interfere
with the cooling of the engine.
KEEP ENGINE CLEAN. THIS ENGINE IS AIR
COOLED. IF COOLING SYSTEM BECOMES
CLOGGED, SERIOUS DAMAGE MAY RESULT.
THEREFORE, KEEP THE BLOWER SCREEN,
FINS ON FLYWHEEL, CYLINDER HEAD AND
BLOCK FREE FROM GRASS OR DIRT.
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AIR CLE AN ER
B
FIG. 14
B
FIG. 15
G. 16
NOTE: If air cleaner becQmes too dirty, engine will
not . receive sufficient air to run properly. Symptoms:
Loss of power, fl o od] ng, hard to start and
overheating.
Your engine is equipped with a polyurethane pre ..
cleaner (B. Fig's . 14 and 15) . that must be removed.
deaned and oiled every 25 hours of operation, or
more often under dusty conditions.
1. To service the pre-cleaner, carefu ll y stretch
pre-cleaner over the outer metal cover and wash
in water and detergent, refer to Fig . 15. Remove
excess water by squeez i ng as a sponge and
allow to dry thoroughly . Distribute three
tablespoons of S.A.E. No. 30 engine oil evenly
around pre .. cleaner. Knead into and wring excess
oil from pre .. cI eoner.
2 Depending on conditions in which the tractor is
operating, the inner poper element (C, Fig_ 16),
should be replaced whenever it becomes
excessively dirty . To service inner paper element,
loosen wing nut (A. Fig. 14). that holds outer
metal cover to bracket, and remove complete air
cleaner assembly.
51 ip pre-cleaner from inner
peper element. Handle inner paper element with
care
to avoid perforations or distortion of shape.
3.
To reassemble, slip pre-cleaner (B), over inner
paper element (C ). Carefully hold complete air
cleaner assembly in place on bracket and replace
outer metal cover and secure with wing nut.
Recheck to see that air
cleaner assembly is in
proper position.
NEVER RUN YOUR ENGINE WITHOUT AIR
CLEANER COMPLETELY ASSEMBLED.
1135R·4.
1.71
-10-
C'j
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FIG . 17
OIL DRAIN PLUG
1. Change oil in crankcase ' after first 2 hours of
operation. Engine should be warm when oil is
changed .
2. To drain oil , uns~rew oil drain plug at lower R.H .
side of engine, see Fig. 17. Catch oil in suitable
container.
3.
Refill engine crankcase with oil as instructed
under
"Before Starting the Engine ", page 7.
Capacity 3 pints. Check oil level after each five
hours of operation and add oil, if necessary, to
bring to conect
level on dipstick .
4. · After first oi l change, oil should be changed after
each 25 hours of oper ation.
TRANSAXLE (TRANSMISSION) LUBRICATI N
W/ '/Y .
~
F ILLER
~~ PLUG
I
FIG . 18
Rear wheel is removed for illustrating.
1. Check oil in transoxle every 50 hours of ope ra tion.
To che ck oil le vel. remove filler plug (Fig. 18).
from
transaxle. Oil level should be even with this
plug.
2. Change oil in transaxle after SOO hours of
operation. To drain, remove drain plug and catch
oil in suitable container.
3. To fill transax le. use 5 qts . of Allstate S. A.E.
30 motor oil for se rvice MM or MS or equivalent.
Fill through filler plug as shown.
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A
B
LUBRICAT IO N CH AR T
F
_-~ ~-::...=-_;, ~t:. =- ::;; =_-
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FIG. 19
E A
B
Th ere are only 6 grease fittings on your tractor . Give each grease fitting 2 shots of grease every 5 hours of operation .
Use Sears All-purpose Lithium gun grease or eq uivalent.
A - Front Wheels (2 fittings, both sides )
B -
Front Spind· les (2 fittings, both sides)
C - S teering Bell Cronk
D -Steering Gear Sector and Arm
E -Check oil in engine crankcase at least every 5 hours of operation . Change oil every 25 hours of normal operation.
In extremely dirty or dusty conditions change oil every 15 ~r 20 hours of operation.
F -Check oil in tronsaxle (transmission) every 50 hours of operation. Chonge oi l in tr ansaxle every 500 hours of operation.
-- Apply several drops of oil to all pivot points every 5 hours of operation .
11 35R ·4. 1. 71
-11-
1
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?r -------- -------------- ---
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BELT ADJUSTMENT
ID LER BRA eKE T _ ,..-----:1'-+<':1
IDLER PULLEY
FRAME BELT
~_-~·fFL';
-. -~//~
FIG. 20
--- . --- - ---- .
I"
6-
2
~ TOP OF FRAME
1. Loosen bolt in flat idler and frame, and push idler and bolt down in slot of frame until center of idler pulley on
idler bracket (just back of engine) is 6Y7 inches above frame as shown . Tighten bolt in flat idler and frome securely.
NOTE; Foot pedal should be in verlical or just back of verticol position with clutch engoged . New belts will
stretch after Q few hours of operation, then ofter initial stretch, adjustment is seldom necessary, so adjust
belt after first 10 hours of operation .
BRAKE ADJUSTMENT
IDLER PULLEY
--
FLANGED NUT
_.
TURNBUCKLE
--- . __ ._ _ ._-_. __ .-
FIG. 21
To adjust brake, " loosen nut back of turnbuckle and turn V turnbuckle (clockwise when standing in front of tractor) one
turn at 0 time until foot pedal has about 4 inches of travel from clutch engaged to full brake position, or center of i dler
is about 4-3/ 8 above frame as shown.
Tab on idle r brocket wi II deflect belt 51 ightly. Tighten jam nut against turnbuckle to lock turnbuckle in position. Keep
brake properly adjusted especially in hi lIy terrain .
PARK BRAKE LOCK ADJUSTMENT
The flonged nut is adjustable forward or backward on rear brake rod so that lock ossembly will hold brake full on when
parking lock
is pulled up (lock position) . Tighten jam nut against flanged nut to lock flange nut in position. As brake
band wears, flanged nut w; .. ", ha ve to be readjusted.
I
1135R-4.1. 71
-12-
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WEIG HTS (Optional Equipment)
{""'OOlIII!!:Il:i~r_~./
HEX RECESS
FIG. 22
FIG. 23
FIG 24
1135R-4. 1.71
-13-
Rear wheel wei ghts ( Fig . 22), are v er y es s ential for
added traction. This is especially true for attach-
ments such as the plow , disc harrow , le v eler blade ,
rotary snowplow, bulldozer, etc. Front or rear end
weight (Fig·s. 23 and 24), will oct as a counter -
weight for heavy front or rear loads or attachments.
Especially helpful with rotary snowp low.
IM NOT
CLEAN
110 WORK!
IMPORTANT BATTERY CARE
Proper attention to the battery on units so equipped
is of the utmost importance.
Your battery is of the same high standard os is used
in automobiles . Unfortunately it does not have
the ad v antage of automatic attention by the ser v ice
station ottendant as the one in your ca r.
The following points are recorded to help remind you
to ' provide attention to the battery and gain full
advantage of the usable life built into the battery
and avoid costly replacements .
.~ .• )i "\
1. Check solution level in bqtt ery at least once
each week. Add distilled water when required.
Correct level is bottom of tubes in cells, refer to
page 5. After adding water, run the engine so
that the generator charge will mix the solution.
DO NOT OVER FILL .
2. Keep the battery cI eon. Remov e any collection
of grea se or other s ubstance from the top of
th e battery.
3. Ke ep top of battery clean and dry at all times.
4. Keep battery s nug
its cr adle or holder.
5. Kee p v ent cops tight and small v ent hol es in
caps open .
6.
If batt ery shou Id become di s charged , or fall
belo w a s pecifi c gra vity of L 225 re mo ve battery
and hav e it recharged.
7. Wh en re charging, request ser v ice station to
SLOW CHARGE the batte,y at a 'ate of 3
ampe,es. FAST CHARGING IS NOT RECOM·
MENDED.
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TROUBLE SHOOTING
Possible Couse
Possible Remedy
HARD TO START
No gasoline in fuel tank or carburetor ... .... ...... . .
Water in
gasoline or old fuel. ... . • .•.•.. .• ... . .. . ..
Choked improperly. Flooded engine'... .. . . . . • .. . .. _ .. ,
Dirt y carburetor air filter .. . . .... . ... . . • . • .. .... . . .
Spark plug dirty or improper gap . .... . . .... . .. • . . . • .
D e f e~ t iv e ba t ter y ... . • . • ••• •. • .•• . . •• • .. •• • .. • .. ..
Defecti ve ignition or loose wiring •..•.. . . . .. ... .. . .
Fill the tank wi th ga s oline; op en fuel shut ·off valve.
Check fuel line and carburetor .
Drain fu e l tank and c arburet or. Us e ne w fu el and dry
spark plug.
Push in choke, open throttle control and crank engin e
se v er a l time s to cl ear out the ga s.
Re
move and cleon, see page 10.
Cleon, adjust the gap or replace . Refer to engine
manual.
Service or re place .
Check lhe wi ring and spa rk plug.
ENGINE MISSES OR LACKS POWER
Dirt y starter air screen . . . .. .. •. • . , . • . .. • . • .. .. . .• .
Partiall y plugged air cleaner .. .. . . • . . , • . •. • .... . . • .
Low oil level or dirty oil. . .. .... ... .. .. . ...... . .. .
Imprope r c arbur e tor ad j ustment. ....... . ..... . ..... .
Spark phJg di r ty, wrong gap or wrong type .. . ..... • , •.
Engine o ve rloaded . .. . .. •.. .. . .. . . .. . . • . . ... .. • .. .
Faulty ignition . . .... . . • . •. .. • . • • . .... • .. •. ... .. . .
Belt slips ... . . .. .. . ... . .. • .• . . . ..• • .•• • .. .... . • .
Oil in gasoline . .. ... .•.•. . ...•. • . • . • .. . •• . . . . . • . •
Poor compression. , . .. . . ... • . ..•. . . ... • . • •• . .. •. .
Clean screen over starter, s ee page 9. Be sure fins
on cyl inder head and around cylinder are clean .
Re mo ve and clean, See page 10.
Che ck or chang e oil, see page 10.
.Re
fer to engin e manual.
Clean , re s et the gap or rep l ace .
Shift to a lowe r gear or reduce load.
Check spark plug and for loose wires. If trouble
cannot be corrected, contact Sear s .
Tighten belt . Refer to page 15 .
Dra in and refill gas oline tank and carburetor. Oil
reduces the efficiency of the engine.
Con t act Sears .
ENGINE OVERHEA TS
Dirt y storter air screen .. . .... .• . • .. .. . .. .. . .. . . .. .
Low o il level or dirty oil. . . . .. • . •.. , . . ... . ... . . • . .
Part ially pl ;;g ged muffler. .. . .. ..... .•. .. ... ... .. •.
Poor fuel or too leon a mi x ture. , . . ,., . .• .. ... . • . • .•
Partial ly plugged ai r cleaner . , .. , .. . . • .. .. .. , ... '• .•
Dirty engine, ..... . ,-, . , .. , ... . , ' , --:-~ . .• , .. ,., .. • . .
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Clean sc r een over starter, see page 9.
Check or change oil, se e page 10 .
Remove muffler from engine and clean .
Refer to eng i ne manual.
Remove and clean, see page 10.
Cleon fin s on cy linder head and qro un d cy l inder .
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MAINTENANCE AND SERVICE
FIG. 25
STARTER-GENERATOR BELT ADJUSTMENT
1. Remove 3 screws (A) holding belt guard to
engine.
2. Loosen bolt (B) in generlltor adjusting strap and
generator, move storter generator bock to tighten
belt and iighten bolt (B) securely. Belt should be
ti9ht enoug h to prevent belt slippage when stort-
i"9 tractor.
NOTE: Belt can be tightened at bolt (B), without
removing belt guard. Ho wever , belt tension will be
easier to check with guard remov ed .
HOW TO START IF BATTERY IS LOW
FIG. 26
1. The quickest method would be to connect quick -
stort battery cables or "iumpers" from your
automobile 12 volt battery to the tractor battery,
CAUT I ON: Connect positive (f ) terminal to
positive (I ) term i nal.
1135R .4. 1.71
. -15-
2. Method num ber two wi 11 NOT ch orge battery ,
but is s tr ic tly eme r gen cy start ing on l y.
a. Remove the thre e screws (A, Fig. 25). Thi 5
will a llow remov al of be lt g u ard assemb ly
(C, Fig. 25 ).
b. Loos en nut (8, Fig. 26)" and push motor·
generator forward. This wi ll take tension
from V-belt.. Remove belt.
c. Secure a pi ece of rope and tie a knot in one
end. Place thi s knot into notch (0 ), in engine
pulley, refer ta - E' . ig . 26.
d. Wrap rope around engine pulley using grooves
provided.
e. Pu II rope sharply to start eng ine .
DO NOT REPLACE V-BELT OR GUARD WHILE
ENGINE IS RUNNING. The above method of starting
is only a means to get unit to neorest source of
battery charging. DO NOT operate tractor any longer
than necessary with V-belt and guard removed. Stop
engi ne and r eplace as soon as possible . Be sure to
have proper tension on belt, retighten nut (B, Fig.
26). "I \..
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DISCONNECT SPARK PLUG WIRE AT SPARK
PLUG BEFORE PERFORMING \ · ANY
MAINTENANCE TO PREVENT ACCIDENTAl.
STARTING OF ENGINE .
MAJOR REPAIRS SHOULD
NOT BE ATTEMPTED
UNLESS YOU HAVE
THE PROPER TOOLS
tTOOLS
AND A THOROUGH
KNOWLEDGE OF
THIS MACHINE .
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TIRES
Keep tires inflated to 15 pounds of air in front; 8
pounds in rear.
To repair a punctured FRONT tire:
1. Block wheel up on a solid object high enough
for the tire to clear floor.
FIG. 27
i
2. Remove hex 'bolt (A), and dust cap (B).
FIG. 28
3. Remove gripeo nut (CL wear washer (0), pin
(El, and washer (F), from spindle shalt assembly
(G). Refer to Fig's. 28 and 29.
1st
1135R-4.1. 71
'.
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A B
FIG. 29
4. Reverse proceedure for reassembly, refer to Fig.
29.
To repair a punctured REAR tire:
5. Remove rear wheel by unscrewing five hub
bolts from wheel and hub.
NOTE: Tire can be repaired at your local Sears
automotive center or service station. They are
repaired in same manner as an automobil~ tire .
STOP ENGINE AND WAIT SEVERAL MINUTES
BEFORE CHECKING OIL LEVEL.
NOTE: THE BEST TIME TO DRAIN OIL IS AT
THE END OF A DAY'S OPERATION AT WHICH
TIME THE OIL IS HOT AND ALL DIRT AND
FOREIGN MATERIAL IS SUSPENDED IN THE
OIL.
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WINTER CARE -BATTERY
1. If unit is not used regularly during winter months
it shou Id be removed and stored in a cool, dry
place.
2. If unit is used only infrequently during winter
months check at least once each thirty days to be
sure a full charge is maintained.
3. A battery not fully charged can freeze, resulting
in the neces'sity to replace.
4. A safe rule is to charge the battery monthly or at
least test and recharge jf below 1.225 specific
gravity .
Please remember the necessity of proper winter care
for the battery . Batteries not in use for several months
and not kept fully charged produce a sulphation of
the plates which cannot be removed by recharging .
Your guarantee is intended to provide you adequate
protection. It does not, however, cover recharging or
damage resulting from lack of care, freezing or
inabi lity to perform after winter or long storage periods
without proper attention.
STORAGE INSTRUCTIONS
In the event your tractor is to be inoperative for
periods in excess of 30 days - prepare for storage as
out I ined below:
1. Drain gas tank.
2. Drain carburetor by allowing engine to run out of
gasoline. Then push in drain valve (A, Fig . 30),
to, remove all gasoline from carburetor. Evaporating
gasoline will leave gum deposits if not drained
completely. These deposits make fuel systems
inoperative resulting in a hard or nonstarting
engine when again used .
3. LUBR ICATE CYLINDER by removing the spark
plug and pouring one ounce of clean lubricating
oil through the spark plug hole into the cylinder.
Crank the engine slowly to spread oil and re-
place Spark Plug.
4. CLEAN ENGINE of all foreign matter.
5. Do not save or store gasoline over winter .
A
FIG. 30
GENERAL
1. Just as your automobile needs professional
mechanical maintenance from time to time, so does
your air cooled engine. Cleaning and adjustment
of the carburetor and periodic replacement of the
spark plug and ignition points is made necessary
by NORMAL use.
.,! ':;.:';'
2. Professional air cooled engine service is as c1os;e
as your nearest Sear s Store.
3. A yearly check-up or tune-up by Sears is a good
idea to avoid breakdowns or delays -- Do it each
fall, then you're ready for spr i ng. We even prepare
it for storage for you.
Sears, Roebuck and Co. or Simpsons-Sears Limited in Canada reserves the right to make any changes in design or
improvements without imposing any obligation to install the same upon its items heretofore manufactured.
1135R ·4. 1.71
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11 35R · 4. 1.71
43
SUBURBAN 12 H.P. TRACTOR--MODEL NUMBER 917 . 25630
6
22
o o v w X y
174 1
86
188 1'89
=80=-78
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