Sears 917.25740 User manual

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[Sears [.
owners
manual
MODEL NO.
91725740
c: L .. W">(' I v~ (L -J ..).
f\ ' ~L 14-?:> ~'30o 1'-
5T/16 .
GARDEN TRACTOR
• Assembly
• Operating
• Maintenance
• Repai r Parts
Sears, Roebuck and Co., Chicago, Ill. 60607 U.S.A.
and Simpsons Sears Limited, Toronto
., PRINTED IN U. S. A.
, I
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r
GUARANTEE
Your Tractor is guaranteed for one full year. If any defect in mater.ial or workmanship
should appear during this tlime, simply contact our nearest Sears store or service center
throughout the United States or Canada. We will make all necessary repairs, including
parts and labor, at no charge to you. Tractors equ ip ped 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 cus-
tomer 1I 12th of the price of the new battery for each full month from date of sale.
If the tractor is used for commeroial or rental purposes, this guarantee appl.i es for thirty
days.
SEARS, ROEBUCK AND CO. - SIMPSON-SEARS LTD.
SAFETY PAYS OFF
IMPORTANT
rules for safe
TRAINING
1. Read the Owners Manual ca 'refully and fully
familiarize yourself with the controls and
proper use of your tractor as well as any at-
tachment. Be prepared to stop the engine and
powered
attachment(s) on a second's notice .
Only persons well acquainted with these Rules
for Safe Operation should be allowed to use
your tractor.
2. Do not allow children or young teenagers to
start or operate your tractor.
3. Do not allow anyone in the area while op-
erating your tractor. Keep the children and
pets in the back yard whi Ie using it in the
front yard. Keep a wary eye out for ch iIdren
or passers-by. Di sengage the power to all
attachments and stop the engine while they
are in the vicinity of your tractor. Children,
particularl
Yh
could get in the way of and in-
Iured by t e tractor or an attachment.
PRE PARATION
4. Do not operate the tractor when barefoot or
wearing open
sandals. Always wear substantial
footwear, preferably steel-toed shoes . Also,
do not wear loose fitting clothing that could
get caught in moving parts.
5. Check your fuel supply before each use. Never
remove the gas cap or fill the gasoline tank
when the engine is running or while it is hot.
When fi II ing the fuel tank, leave space for
operation
expans ion, do not fill it to the br im and keep
in mind that the heat of the sun can caUloe the
gaso line to expand. Wipe off any spilled 9as-
01 ine before starting the engine. Remember,
gasoline is highly flammable and must always
be handled with ext reme care.
6. A t ractor and all attachments are precision
pieces of equipment, not playthings, therefore
extreme caution must be exercised at all times.
7. Never attempt to operate a damaged tractor or
attachment , always repair any damage before
attempting to start or operate your tractor or
att , achment.
8. Never c: trempt to carry any passengers, their
safety as well as your safety will be endangered.
9. Before attempting to start the engine of your
tractor make sure the gear shift lever is in
neutral and
the power to all attachments is
disengaged, then firmly apply the foot brake
and be sure to release the parking brake. The
parking brake must always be disengaged when
you put
the tractor in motion. If the tractor is
operated with the parking brake engaged serious
damage may result.
10. Each time before leaving the operator's seat,
be absolutely sure the power to all attachments
is disengaged, the parking brake is engaged,
the gear shift lever is in neutral, the engine
is shut off the attachments and all moving
parts have ~ompletely stopped and the ignition
key is removed. Never leave the operator's
seat with the engine or any powered attachment
running. Always get on or off your tractor from
the operator's I eft-hand side.
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operation
11. Always operate your tractor in daylight; dusk
or dark - use your lights .
12. Operate your tractor at safe speeds on wet or
slippery surfaces, where traction is unsure.
Never at a speed which could cause a skid.
OPERATION
13.
14.
15.
16.
17.
18 .
Do not attempt to change the governor setting
or overspeed the engine. The governor controls
the engine speed and protects the engine from
damaging, excessive speeds. Excessive engine
speed s are dangerous.
When storting your engine on tractors equipped
with a pull starter, stand fi rm and make sure
your feet are well away from a II powered at-
tachments .
Never place your hands or feet in or under any
powered attachment or near any moving parts
wh iIe the tractor or any powered attachment
is runn ing.
Always disengage the power to all attachments,
set the parking brake, shift into neutral, shut
off the engine, make absolutely sure any power-
ed attachment and all moving parts have com-
pletely stopped and remove the ignition key
each time you dismount your tractor, even for
a
second. Children, yourself, other persons or
pets may be endangered.
If your tractor or any attachment should inad-
vertently strike a foreign object, immediately
di sengage the power to the attachment, set the
parking brake, shift into neutral, shut off the
engine, make absolutely sure any powered
attachment and all mov ing parts h ave com-
pletely stopped, remove the ignition key, dis-
connect the spark plug wire from the spark
plug and keep the wire away from the plug to
prevent injury or accidental starting, then
thoroughly, inspect the tractor or attachment
for any damage. Such damage must be repaired
before restarting and operating the tractor or
attachment .
If the tractor or any powered attachment shou Id
start to vibrate abnormally, place the control
lever for powered attachments in the disengaged
pos i tion, set the parking brake, shift into
neutral , shut off the engine, make absolutely
sure the powered attachment and all moving
parts have completely stopped, remove the
ignition key, disconnect the spark plug wire
from the spark plug and keep it away from the
plug to prevent injury or accidental starting,
then check immediately for the cause of this
vibration as vibration is generally a warning
of trouble.
19. Before adjusting, cleaning, repairing or in-
specting your tractor or any powered attach-
ment, disengage the power to 011 attachments ,
set the porking brake , shut off the eng i ne, make
absolutely sure the powered attachments and
all moving parts have completely stopped,
remove the ignition key, d is connect the spark
plug wire and keep it away from the spark plug
to prevent injury or accidental starting.
2808R-ll.20.72
- 2 -
20. Do not run the engine indoors because the
engine exhaust fumes contain carbon monoxide
which is a tasteless, odarless, deadly poison.
21 . Never operate your tractor upon a terrace,
slope or incline that is too steep to preserve
good stabi Ii ty and contro lin order to prevent
tipping or sideways upsets. Always operate a
tractor up and down such an incl ine, at a slow
speed, do not operate it across. Always ex-
ercise extreme caution when changing direction
on inclines . Never attempt to operate your
tractor on steep terraces, slopes or inclines
with more than a 15 degree slope .
n. Do not start or stop suddenly when going up or
down a terrace slope or incline. If it is ne-
cess ary to stop your tractor upon an incl ine,
do so firmly to prevent the tractor from picking
up speed during declutching and before reach -
ing the brake position. 00 not shift gears while
going up or down inclines . Choose a gear low
enough to negotiate the incline without stop-
ping and shifting gears. To reduce the speed of
the tractor on an i ncline move throttle lever to
slow.
23 . Never attempt to operate your tractor or any
attachments without the proper shields, guards,
plates or other protective devices in p' lace and
fully functioning.
24. Before and while attempting to back up, look
carefu lIy to be abso lutely sure that ch i Idren,
bystanders, pets, foreign objects or obstacles
of any kind are not beh ind you.
25 . Never allow anyone near the tractor or any
attachment while they are operating.
26. Be sure to exercise special care when operating
your tractor around fixed objects in order to
prevent the tractor or any attachment from
striking them . Never deliberately run a tractor
or an attachment into or over any foreign ob-
jects .
27. Use care when pull ing loads. Use only approved
drawbar hitch points. limit loads to those you
can safely control. Do not turn sharply. Use
counterweight or wheel weight(s) when suggested
in the attachment Owners Manual.
28 . Never shift gears to reverse your direction of
travel until the tractor comes to a complete stop.
29. Always stay alert to avoid holes in the terrain
and other hidden hazards. T i pping or sideways
upsets can happen easily in holes or ditches.
Use low gear on unfamiliar ground. If the tractor
or any attachment becomes stuck in a hole,
always disengage the power to all attachments
before attempt ing to free it.
30. The use of ony precision piece of power equip-
ment requires your full concentration and at-
tention to the job being done in order to pre-
vent i njury or damage.
31. Always d is engage the power to all attachments
when not actually in use such as when crossing
a gravel drive, sidewalk or roadway or when
tran sporting the tractor.
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rules for safe operation {cont.}
32. Watch out for traffic when crossing or near
roadways.
MAINTENANCE
33. Keep all nuts, bolts and screws tight in order
to be sure that the tractor and any attachment
is in safe working condition. Be sure the brake
and all powered attachment contro Is are always
in proper adjustment and repair. Check the
attachment and engine mounting bolts at fre-
quent interval s for proper ti ghtnes s. Before
performing any maintenance, always disengage
the power to all attachments, set the parking
brake, sh ift into neutral, shut off the engine,
make absolutely sure the powered attachment
and all moving parts have compl etely stopped,
remove the ignition key, disconnect the spark
plug wire from the spark plug and keep it away
from the plug to prevent injury or accidental
starting. The only exception to this rule is
carburetor ad ju stment 12 .
introduction
34. Keep the engine
grass, leaves or excessive grease as these
accumulations are combustible and could result
in a fire. Always keep your tractor and all
attachments in good operating condition and
make sure that all shields, guards, plates and
other protect i ve devices are in place. Gi ve
your tractor and all attachments the regular
maintenance they need and have a competent
serviceman make a thorough inspection of them
at least once a year.
35. Do not store your tractor for prolonged periods
(more than 30 days) with gasoline in the tank.
Do not store }'our tractor or a g asol ine con-
tainer inside a building where fumes may reach
an open flame or spark, they should be stored
in a cool, dry pla . ce. Be sure to let the engine
cool before storing in any enclosure. Always
use an approved gasoline container for storing
gaso I in e and keep your tractor, attachments
and gasol ine container in locked storage to
prevent ch iIdren from pi aying and tampering
with them.
This tractor has been designed, engineered and manufactured to give you the best poss i ble dependability and per-
formance.
Should you experience any problem you cannot easily remedy, pleasE1 contact your nearest Sears, Roebuck or Simpsons
Sears, Ltd. Store. They have well qualified, competent trained technic i ans and the proper tools to service or repair
this un it .
It is important that the operator ALWAYS OBSERVE THE "RULES FOR SAFE OPERATION" as well as other
instructio . ns contained in this Manual. We have provided this Manual to help you operate your Tractor with utmost
efficiency. We urge you to study this Manual so you will unde rst and your new Tractor thoroughly before operating it.
We suggest that you take care of your Manual so that it will be available for future reference should you need it.
table of contents
GUARANTEE
RULES FOR SAFE OPERATION
ASSEMBLY INSTRUCTIONS
OPERATING INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
REPAIR PARTS
assembly instructions
1 - 3
3 - 5
5 - 7
8 - 14
15 - 33
A letter in paranthesis in the following in struct i ons refers to an arrow in the adjo ining Figure (illu strat i on), except
when otherwise stated. When R.H. ( Right Hand) or L.H. (Left Hand) is used, it should be understood to mean as if
one
were seated on the Tractor seat facing forward.
1. Remove battery. Cut banding holding Tractor to bottom of crate.
2. Your Tractor has been completely assembled at the factory except, to fill, charge and install the battery . The
battery was shipped dry. Instructions are given on page 4 for filling, charging and installation.
3. Your Tractor ·was lubricated at the factory however , we suggest you follow the Lube Chart on page 10 before
operat ion.
2BOBR-11.20.72
- 3 -
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4. Tires were over-inflated for shipping purposes. Reduce air pressure to 12 Ibs. in front tires and 6·lbs. in rear
tires. This will improve traction and give you the comfortable ride you will want.
5. A plastic bag of parts was shipped with your Tractor and should be opened at this time. It will contain the fol-
lowing items:
1 - Battery Clamp
2 Wing Nuts
2 - Battery Bolts
2 - Flat Washers
(These items hold battery in position on Tractor.
They ar«: used in steps 3 and 5, page 5).
fill and charge battery
CAUTION: DO NOT ASSEMBLE BATTERY TO
TRACTOR UNTIL BATTERY HAS BEEN FILL-
ED AND CHARGED.
FILL BATTERY AS SHOWN
DO NOT OVERFILL __
CORRECT LEVEL IS BOTTOM OF
TUBES IN CELLS.
1. Fill battery with el ectrol yte and charge battery
as outlined in instructions in battery container.
NOTE: After filling cells, let battery stand for
thirty (30) minutes. Recheck acid level, add more
electrolyte if necessary, then charge battery at
a rate not exceeding three (3) amperes for about
2Y2 hours. CORR ECT LEVEL IS BOTTOM OF
TUBES IN CELLS.
CUT-AWAY VIEW
OF BATTERY
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BATTERY
TUBE
ELECTROLYTE
2808R-l1.20. 72 FIG. 2
BATTERY
~CELL
2 - Hex Nuts
(They secure ground strap and positive cable
to battery. They are used in steps 6 and 7,
page 5}
2 - Ign ition Key s
(We suggest one key be removed from the wire
ring and kept in a safe place. Position the
second key in the Tractor ignition).
There will be an amount of electrolyte (acid) in
the container after battery is filled. This should
be disposed of and not u sed at a Iater date to
refill Tractoror any other battery. Using a common
5 gallon polyethylene garbage can or pail, fill
with a minimum of four inches of water. Avoid
spillage on person or clothing, add left over
electrolyte to water. Then sodium bicarbonate
(baking soda) shou Id be added and the mixture
stirred or agitated until the addition of bicar-
bonate no longer causes foaming. Agitate with a
wooden or plastic stake or stick only. It will
now be safe to dispose of this down a reguiar
sewage system. Since the product is well neu-
tralized, no criticism from authorities should
result,
It is preferable, where permissible, to burn the
empty acid pak to prevent possible further con-
tact with acid.
battery installation
FIG.3
2. To lift hood assembly (A), grasp each side of
hood at rear and pull outward and upward. lift
hood to its extreme forward position.
-4-
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FIG.4
3. Assemble clamp (B), to one of two battery bolts
(C). Flat washer and wing nut above clamp as
shown. Hook the bolt into rear of battery support
(D). Turn clamp to the side as shown to allow
positioning of battery.
E F
FIG.5
4. Sl ide battery into position as shown, with ter-
minals to center of Tractor.
5. Hook the battery bolt (C) into the front of the
battery support (D). Assemble clamp (B), to bolt
(C), with the remaining washer and wing nut.
Tighten both wing nuts securely.
6. Connect cable and cover (E, Fig's. 4 and 5), to
plus (+) terminal. Tighten with hex nut securely.
7. Connect ground cable (F, Fig's. 4 and 5), to
negative (-) terminal. Tighten with hex nut se-
curely.
2S0SR-ll.20.72
- 5 -
seat position
f--
FIG.6
1. The seat (A), may be moved
rear to give the mo st comfortab Ie and safe operat-
ing position. To move the seat, loosen the nut
(B), beneath the seat spring (C). Slide the seat
to the positi "on desired. Tighten nut securely.
Make sure that the seat spring (C), has not
twi sted out of al ignment with the seat plate
(D).
instructions before
operating
controls
The following controls are used to operate the Trac-
tor:
1. Clutch and brake foot pedal is located on the
left side foot rest. The foot pedal operates a
combination brake and drive clutch. There are
three positions of operation on the foot pedal.
a. The clutch is in DRIVE position when the
pedal is all the way out (when the foot is
removed from the pedal). '-
b. The clutch is in NEUTRAL when the pedal is
depressed half way or more.
c. The BRAKE is on when the pedal is de-
pressed all the way forward.
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2. The transaxle (transmiss ion) gear shift lever
(A), is located at front, center of seat.
a. The gear shift l ever selects the FORWARD,
NE UTRAL and REVERSE gears.
3. To engage parking brake, pull park brake lever
(B), to r ear (lock) pos ition. To release pa rking
brake, push lever (B), forward.
E
FIG.9
4. The high-low range shift l ever !C), is l oca t ed on
R.H.
side of c hassis, just forward of R.H. rear
fender. The high-low range lever has 3 positions,
up for high- range, center for neutr al and down for
low-range.
There are 2 neutral positions in
transmission, one on the gear shif t l ever (D), and
one on the high-low r ange lever (C). Both i evers
must be engaged for Tractor to oper at e. Place
both levers in neutral for pushing of Tractor or
when Tractor is being towed. Refer to "Tow ing
Tr actor", page 7.
2808R-11.20.72
- 6 -
fuel and lubricant
FUEL TANK
OIL FILLER CAP
AND DIPSTICK
~ I ~
FIG. 10
1. Rai se hood.
/
2•. Engi ne crankcase is shirped with oil ready for
use . However, check oi leve l before starting .
If necessary, add oil to bring oil ie vel up to full
mark on
the dipstick. Dip st ick must be screwed
in tight for checking oil level, and tractor should
be level. N OTE: Do not fill ab ove full mark on
dipstick . Use Allstat e S.A.E. 30 oil or eq uiva le nt
for summ
er us e. For winter use, below 32
0,
us e
All
sta te Mu !ti-grade 0 iI S.A .E. 10W-30, 10W-40
or equiva lent. No thi ng should be added to th e
re commended o il. Ma ke sure the oil used is a
high
qua liry dete ra ent oil class ified "for servi ce
MS, SD, SC or SE~ Because of recent changes in
the cl as sific ations, t he oil conta iner may show
one or a combination of these recommended
classifications. Fo r extreme co id, below 0° F. ,
use S.A.E. SW-20.
3. Fill fuel tank with q good g rad e of fresh, CLEAN,
regula r gasoline. Wipe off all spilled fuel and oil.
operating instructions
how
to start and stop
1. Check to see that gasol ine · shu t-off valve (A),
is
turned a ll the way open - counter-clockwise.
NOTE: Turn by hand only . Close shut-off valve
after each days use.
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IiiiI
FIG. 12
2. Pullout choke control (B), to full choke position
to start in cold weather.
3. Advance throttle control lever (C), to about Y2
throttle.
4. This Tractor is equipped with two safety switch-
es. One switch is located on the gear shift lever
(0, Fig. 9, at point E). The other switch is
located on attachment clutch lever (F, Fig. 18).
The gear shift lever must be in neutral (center
position). The attachment clutch lever must also
be in disengaged (out), position for engine to
start. Turn key (F), in ignition-starter switch
clockwise to engage starter. When engine starts,
release key. After engine starts, push in choke
control (B), as engine warms up. Let engine
warm up before applying load. CAUTION: Do
not run starter continuously for more than 30
seconds at a time. If after several attempts,
engine does not start, move throttle control
(C), to fast position. Wait two minutes and try
again .
NOTE: If attachment clutch lever (F, Fig . 18), inter-
feres with attachment to be used, remove handle.
CAUT ION: First move handle to "OUT" position,
then remove nut and handle. Save for use with at-
tachment for which it is required.
5. To stop engine, turn ignition key (F), in a counter-
clockwise direction to OFF position. Key should
be removed to prevent , unauthorized operation.
safe operating
c
B
1. Try your Tractor in a large, open space. Learn to
start, stop and reverse.
2. Start the engine and put the throttle lever at about
1/3 throttle. Push down on foot pedal, move gear
shift lever and range shift lever to speed desired.
Release foot pedal slowly, and Tractor will start
to move. After foot pedal is fully released (clutch
engaged), move throttle lever to fast position. If
ground travel is too fast, reduce throttle lever to
about Y2 throttle, depress foot pedal and shift to a
s lower
ground trave I speed . Always sel ect a ground
travel speed that will suit attachment be ing used
and not overload the eng i ne.
3. Do not shift gears while Tractor is moving.
2808R-18 .12. 72
- 7 -
4. To stop Tractor, push foot pedal all the way down
and reduce throttle lever to about Y2 throttle. Dis-
engage power to attachment. Move gear shift lever
to neutral, set parking brake lock and release foot
pedal. Always check to make sure brake lock will
hold Tractor secure. Shut-off and remove key from
switch. This will prevent unauthorized operation.
Keep key in a safe place out of reach of chi Idren.
Never leave engine running with Tractor unattend-
ed.
5. Do not operate the Tractor in high gear going
down hill. Do not turn sharp corners wh iIe
going down hi
ll. If it is necessary to stop
Tractor 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 brak-
ing action when throttled back to idling speed
without decl utch ing. Th is procedure is re-
commended before applying brake.
DO NOT OPERATE TRACTOR ACROSS SLOPES.
DO NOT OPERATE TRACTOR UP OR DOWN
SLOPES WITH MORE THAN A 15 DEGREE SLOPE.
6. Do not sh ift gears while going up steep hills.
Choose a low enough gear to climb hill without
stopping and shifting gears. If it is necessary
to stop while going up hill, do so quickly to
prevent Tractor ro II ing bac kward. Before start-
ing Tractor in motion going uphill, use one of
the lowest gears. Reduce engine speed and en-
gage clut ch gradual ly to prevent Tractor from
I. . "
rearing up .
7.
Up sets can happen easi Iy in ditches. Stay alert
for holes or other yard hazards.
8. If tractor becomes mired in a hole, try to back out
ra (ler than driving forward.
towing
tractor
1. Place gear shift lever and range shift lever in
neutral position. Tractor can then be towed at
a
reasonable safe speed not faster than 6 miles
per hour.
pulley grooves
to use for your various
attachments
.
engine
l
:NGINE
MAIN DRIVE BEL T
TO TRANSMISSION
SICKLE BAR MOWER
ROTARY MOWER
ROTARY SNOWPLOW
ALTERNATOR
SHREDDER--- ....
FIG. 13
ENGINE
PULLEY
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maintenance
instructions
air cleaner
WING
NUT
Your engine is equ "ipped with a dual type air cleaner.
A dry type inner element and an outer foam filter
pre-cleaner. The outer foam filter should be periodi-
cally removed and cleaned ( at least every 25 hours
of ope r ation and more frequently under extremely
dusty co n ditions), to maintain maximum engine
performance.
1. Remove outer foam
fi
lter (no disassembly
necessary ), and wash
in wat er and de-
tergent.
2. Remove excess water
by squeezing as a
sponge and allow to
dry thorough Iy. FIG.
15
3. Coat foam filter with three (3) tablespoons of
S.A.E. No. 30 engine oil. Knead int o foam fil ter
to spread. Wring excess oil from foam filter.
4. Re-install foam filter.
Under extremely dusty condi tion s or if engine runs
errat ic after compl eting above procedures, the inner
element must be replaced.
1. Remove wing nut and
cover.
2. Separate inner ele-
ment from outer foam
filter pre-cleaner.
3. Replace inner ele-
ment.
4. Re-assemble.
It is recommended that
the inner element be
replaced yearly.
FIG. 16
NEVER RUN YOUR ENGINE WITHOUT AIR
CLEANER COMPLETELY ASSEMBLED AND
IN PLACE ON THE ENGINE.
2S0SR-ll.20.72
- S -
NOT E: Your eng ine carburetor breathes through the
air cleaner. Your engine with a dirty air cleaner
will have a very difficult time try ing to do the same
job as an engine with a clean one. If your air cleaner
is only 50% efficient, it will reduce the efficiency
of the engine by at least 1/3 of its horsepower
rating. A dirty air cleaner will cause a premature
bui Idup of carbon in the exhaust and cylinder area.
There will also be a noticeable loss of power. The
spark plug will also foul prematurely. It also raises
the operating temperature of the eng ine and you can
expect higher maintenance costs and a shorter en-
gine life. THE NUMBER ONE STEP OF YOUR
MAINTENANCE PROGRAM SHOULD BE: KEEP
THE AIR CLEANER CLEAN.
TH IS TRACTOR HAS AN AIR COOLED EN-
GINE. AIR MUST BE ABLE TO CIRCULATE
FREELY
AROUND THE ENGINE, THROUGH
THE STARTER SCREEN AND AIR CLEANER,
AND OVER THE F INS OF THE CYLINDER
BLOC K. KEEP THESE AREAS FREE OF AC-
CUMULATED DIRT AND TRASH OR THE EN-
GINE WILL OVERHEAT AND RESULT IN
DAMAGE TO MOVING PARTS.
starter
e
air screen
FIG. 17
The starter screen guard (A), and the starter ro-
tating screen (located directly behind the starter
screen guard), a re designed to keep grass, chaff
and leaves from en ter ing the cooling system. They
must be cleaned periodically. The cleaning of
the screens will vary with the conditions in which
the Tractor is used. They should not be allowed to
become dirty . This would interfere with the cooling
of the engine . Remove the screen guard (A), clean
it and the starter rotating screen regularly.
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engine lubrication
STOP ENGINE AND WAIT SEVERAL MINUTES
BEFORE CHECKING OIL LEVEL.
BE SURE TRACTOR IS ON LEVEL GROUND
AND ENGINE IS STOPPED BEFORE CHECK-
ING OIL LEVEL.
OIL
FILL PLUG
f\
FIG. 18
1. Change oil in crankcase after FIRST 2 HOURS of
operation. Engine should be wa rm whe n oil is
changed.
2. To drain oil, unscr ew oil drain plug at lo wer R. H.
side of engine . Catch oil in suitable container.
3. Refill engine crankcase with oil as instructed
unde r "Fuel and Lubr icant", page 6. Capac ity
3 pints. Chec k oil level after each S hours of
operation and add oil, if necessary, to bring to
correct level on dipstick.
4. After first oil change, oil should be changed
after each 25 hours of operation. In extremely
dirty or dusty conditions, change oil every 15
hours of operation.
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.
IMPORTANT: BE EXTREMELY CAREFUL TO
PREVENT DIRT OR FOREIGN PARTICLES
FROM ENTERING THE ENGINE CRANKCASE
OR TRANSMISSION WHEN CHECKING OIL
LEVEL
OR CHANGING OIL.
2S0SR-11.20.72
- 9 -
transaxle (transmission)
lubrication
FIG. 19
Rear wheel is removed for ill us trating.
1. Check oil in transaxle every 50 hours of operation.
To check oil level, remove filler plug from tranS-
axle . Oil level should be even with this plug.
2. Chang e oil in transaxle after 500 hours of op-
eration. To drain, remove drain plug and catch
oil in suitable conta i ner .
3. To fill transaxle, use 5 qts. of Allstate S.A.E.
30 motor oil for service MM or MS or equivalent.
Fill through filler plug as shown.
~~
BEFORE
BACKING~-~
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lubrication
ch a rt
A
B
f
_-= -=--=-=.~~;-t =- = = = _-
I
I
FIG. 20
B
There are only 6 grease fittings on your trador. Give each grease fitting 2 shots of gr ease every 5 hours of operat ion.
Use Sears Al l-pur pose Lith i um gun grease or equi v alen t.
A - Front Wheels (2 fittings, both sides)
B - Front Spi ndles (2 fittings, both si des )
C - Steering Bell Crank
D - Steering Gear Sector and Arm
E -
Check oil in engi ne cran k case at least every S hours of operation. Change oil every 25 hours of normal opera ti on.
In extreme Iy dirty or du sty cond i tions , change 0 iI every 15 hours of operat ion.
F -
Check 0 iI in transaxle (transm i ss ion) every 50 hours of opera ti on. Change 0 iI in tran saxle every 500 hours of op-
eration.
Apply several drops of oil to all pivot points every 5 hours of operation .
280SR-11.20.72
-10 -
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transaxle (transmission) drive
belt adiustment
A new belt will stretch after the first few haurs of operation, then after initial stretch, ad j ustment is seldom neces -
s ary.
IDLER BRACKET _~--:l~':"T
IDLER PULLEY
I"
6-
'2
FRAME BELT ___
\ -- -- . +-~~~ -
------
~~~----------------~
~ TOP OF FRAME
FIG. 21
Loosen bo lt in flat idler and frame, and push idler and bolt down in slot of frame until ce nter of idlerpul leyon
idler bracket ( ju st back of engine), is 61 '1 inches above frame as sho wn. Tighten bait in flat idler and frame securely .
NOT E: Foot pedal should be in vertical or just back of ve r tical posit i' on with clutch enga ged . New belts will
stretch after a few hours of operation, t hen after initial stretch, adjustment is seldom necessary. Adjust
belt after fir st 10 hour s of operation.
brake adiustment
/ DRIVE BELT
~_~.,.. /' ______ PARKING
IDLER
PULlEY - ____ ~RAKE ~
. - ---
--
4-3 /8', PARKING LOCK
ASSEMBL Y
!~- F~OT ~EDAL
TOP OF FRAME
FIG. 22
To adjust brake , loosen nut back of turnbuckle and turn turnbuckle ( clockwise when stand ing in front af tractor), one
turn at a time until foot pedal has about 4 inches of travel from clutch engaged to full broke position , or center of
i dler is about 4-3 / 8 above frame as s hown.
Tab on idler bracket will deflect belt slightly. Tighten jam nut against turn buckle to lock turnbuckle in position. Keep
brake properly adjusted especially in hilly terrain.
pa rk
brake lock adiustment
To tighten parking brake loosen hex nuts (A and B). Rotate parking lock lever to lock pos i tion. By hand pres 's foot
p edal forward to full brake po sitio n. While holding brake pedal forward t i ghten nut (B), against bush ing (C ), finger
i ght. Release foot pedal, and turn nut (B), back against bushing (C), two additional turnS. T i ghten nut (A), against
nut ( 8)' to lock in position. Place high-low l ever in neutral pos i tion. Pull parking l ock le ver bock (lo ck) pos iti on.
R ear wheels of tractor should slide when tractor is pushed.
2808R- l1.20.72
• 11 . •
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carburetor adiustment
CAUTION: WHEN FOLLOWING STEPS 1 THRU
5 BELOW, USE EXTREME CARE TO AVOID
CONTACT WITH MUFFLER OR MOVING PARTS
TO PREVENT INJURY. ALSO, BELT GUARD
MUST BE IN PLACE ..
THROTTLE
STOP SCREW
FUEL BOWL ~
DRAIN PLUG ~~=::;::;;'
HIGH SPEED ADJUSTING
NEEDLE
FIG. 23
DO NOT MAKE UNNECESSARY ADJUST-
MENTS. FACTORY SETTINGS ARE CORRECT
FOR YOUR TRACTOR. IF ADJUSTMENTS
ARE NEEDED, PROCEED AS FOLLOWS:
1. High s peed adjustme nt is pre-set at the factory
(1 y,; tur ns open ) and it shou Id not be ne ces sary
to re-adj us t.
2. Sta rt engine.
3. With thr o ttle control lever in "F" fast po sition,
adj ust "Idle Adjusting Needle" one eighth (118)
turn
at a time clockw ise or counterclockw ise
until engine runs smoothly. (1Y2 turns open) .
4. M ove th ro ttl e con trol lever to "S" slow position,
adjust "Throttl e Stop Screw" to obtain correct
idle speed . If necessary, re-adjust "Idle Ad-
justing N eedle " by turning cloc kwi se or counter-
cloc kwi se as in step 3 un til engine idles smooth -
ly. .
5. Allow seve r al seconds be tween each adjus tment
for engine ca rb uretor to react to the new setting.
CAUTIO N: Never attempt to change maximum engine
speed ; This is preset at the factory and can only be
changed by a qua lified Sears Service Technician
who has the necessary equipment.
spark plug
""
, ?' .
. 1. Re move the change oil
and inspect It .
a. The electrodes should be kept clean and fr ee
of carbon. The presence of carbon or excess
oi I wi II gr eatly hinder proper eng i ne per-
formance.
b. If possible, check the spark plug gap (area
between electrodes), using a wire feeler
gauge. This specification sh ould be .030.
2808R-19.2.73
-12 -
2. If you need a new spark plug refer to "Repair
Parts" section for proper replacement.
3. Before in stall ing spark f;'''(u9, coat threads lightly
with graph it e grease if possible, to insure easy
removal next time the spark plug needs in-
spec ti on.
tire s
K· eep tires inHated to 12 pounds of air pressure In
front; 6 pounds in rear.
Avoid stumps, st ones , deep ruts and other hazards.
Cuts in tir es should be repaired immediately as
neglect decreases the tire life. Keep ti res free
from oil and grease as both destroy rubber. After
usin g the Tractor for spray i ng--insect control work--
wash off any chemical s that may be on the tires.
\~
A B FiG.
25
To rem ove a front tire and wheel, proc eed as fol-
lows:
1. Block up Tractor rocker bar (front axle) sec urely
or use a Sears Tractor Jack.
2. Remove hex bolt (A), and dust cap (B).
3. Remove gripeo nut (C), wear washer (D ), pin
(E), a~d washer (F), from sp in dle shaft as -
sembly (G).
4. After tire is repai r ed, reverse above procedu re
for reassembiy.
A rear wh ee I and tire is removed by removing th e
five hub
bolts from wheel and hub. FIRST : Block
up rear ax le securely or use a S ea rs Tractor Jack.
Sears or your local service station can repa ir your
Tractor tire in the same manner as an automob ile
tire.
how to start if battery
is low
1. Connect quick-start battery cables or "j um per s"
fr om your automo bile 12 voIt battery to the T rae-
tor battery CAUTION: Connect POSitive (+)
termin al to positve (+) term inal. This method of
start ing is only a means of emer gency start in g.
Have Tractor bat t ery rec harged or re placed im-
mediately.
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trouble shooting
WILL NOT START
POSSIBLE CAUSE
Dead battery
Attachment clutch lever engaged ......................... .
Gear shift lever in gear .................................... .
No g (1 soline in fuel tank or carburetor
POSSIBLE REMEDY
Recharge or replace battery.
Move' to "out" position.
Shift into neutral position.
Fill the tank with gasoline; open fuel shut-off valve.
Check fuel line and carburetor.
HARD TO START
Water in gasoline or old fuel
Choked improperly.
Flooded engine .................... .
Dirty
air cleaner ............................................. .
Spark plug dirty or improper gap ...................... ..
Defective battery ............................................ .
Defective ignition or loose wiring
Drain fuel
tank and carburetor. Use new fuel and dry.
spark plug.
Push in choke, open throttle control and crank en-
gine several times to clear out the gas.
Remove and c lean, refer to page 8.
Clean, adjust the gap or replace. Refer to page 12.
Replace.
Check the wiring and spark plug.
ENGINE MISSES OR LACKS POWER
Dirty starter air screen
Partially plugged air cleaner .............................. .
Low
oil level or dirty oil .................................. .
Improper
carburetor adjustment ............................ .
Spark plug
dirty, wrong gap or wrong type .......... ..
Engine overloaded ............................... . ........... ..
Faulty ignition ............................................... ..
Oil in gasoline ............................................... .
Poor
compression
Clean screen over starter, see page S. Be sure fins
on cylinder head and around cylinder are clean.
Remove and clean, refer to page 8.
Check or change oil , see page 9.
Refer to page 12 .
Clean, reset the gap or replace .
Shift to a lower gear or reduce load.
Check spark plug and for loose wires. If trouble
cannot be corrected, contact Sears.
Drain and refill gasoline tank and carburetor. Oil
reduces the efficiency of the engine.
Contact Sears.
ENGINE OVERHEATS
Dirty starter air screen
Low oil level or dirty oil ................................ .
Partially plugged muffler ................................. .
Poor fuel or too lean a mixture ........................ .
Partially plugged air cleaner ............................ .
Dirty
engine
NO LIGHTS
No head I ights or tai I Iight with Iight switch knob
pulled out ...................................................... ..
2S0SR- 11.20.72 •
13 -
Clean screen over starter, see page 9.
Check or change oil, see page 9.
Remove muffler from
engine and clean.
Refer to page 12.
Remove and
clean , refer to page 8.
Clean fins on cylinder head and around cylinder.
Turn fuse holder on dashboard counterclockwise ]
check for burned out fuse.
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important battery care
Proper attention to the battery is of utmost im-
portance.
The following points are recorded to help remind
you to
provide attention to the battery and gain full
advantage of the usable Iife built into the battery
and avoid costly replacement.
1. Check solution level in battery at least once
each week. Add distilled water when required.
Correct level is bottom of tubes in cells, refer
to page 4. After adding water, run the engine so
that the generator charge will mix the solution.
DO NOT OVERFILL. Acid spilled from the
battery wi II corrode choke control and throttle
control casing and wire, Tractor paint, etc.
2. Keep the battery c lean and dry at a II times.
Remove any collection of grease, corrosion or
other substance from the battery .
3.
Keep battery snug in its holder.
4. Keep vent caps tight and small vent holes in
caps open.
5. If battery should become discharged or falls
below a specific gravity of 1.225, remove battery
and have it recharged.
6. When recharging, request service station to
SLOW CHARGE the battery at a rate of 3 amperes.
FAST CHARGING IS NOT RECOMMENDED.
winter care--battery
1. If Tractor is not used regularly during winter
months, the battery should be removed and
stored in a cool, dry place above 50
0
F.
2. Battery should not be placed directly on cement
as this will drain the battery .
3.
If Tractor is used only infrequently during winter
months, check battery at least once each thirty
days to be sure a full charge is maintained.
4. A battery not fully charged can freeze, resulting
in the necessity to replace.
5. A safe rule is to charge the battery monthly or
at least test and recharge if below 1.225 specific
gravity.
6. Recharge to bring the specific gravity to normal
before replacing it in the Tractor after storage.
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 sul-
phati on of the pi ates which cannot be removed by
recharging.
storage instructions
In the event your Tractor is to be inoperat i ve for
periods in excess of 30 days - prepare for storage as
outlined in the next column.
2BOBR-11.20.72
- 14 -
1. Drain fuel tank and carburetor by allowing the
eng ine to run out of gasol ine. Gasol ine left in
your engine will leave gum deposits 'and con-
densation in the carburetor and fuel tank. This
makes fuel system inoperative and will result
in hard or non-starting of the engine.
2. Lubricate cylinder by removing the spark plug.
Pour one ounce of clean lubricating oil through
the spark pi ug hoi e into the cyI inder. Crank the
engine slowly to spread oil and replace the spark
plug.
3. Clean the engine and Tractor of all foreign matter.
4. Do not save or store gasoline over winter.
STORE YOUR TRACTOR IN A DRY AND PRO-
TECTED PLACE. LEAVING YOUR TRACTOR
OUTDOORS, EXPOSED TO THE ELEMENTS,
WILL RESULT IN MATERIALLY SHORTENING
ITS LIFE.
general
1. Just as your automobile needs professional
mechen ical maintenance from time to time, so
does your air . cooled engine. Cleaning and
adjustmen t of the carburetor and periodic
replacement of the spark plug and ignition
points is made necessary by NORMAL use.
2. Pr ofess i onal air cooled eng i ne service is as
close as your nearest Sears Sto r e.
3. A yearly check-up or tune-up by Sears is a good
idea to avoid breakdowns or delays.
Sears, Roebuck and Co. or Simpsons-Sears Ltd. in
Canada reserves the right to make any changes in
design or improvements without imposing any ob-
ligation to install the same upon its items heretofore
manufactured.
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•
repa I r
2S0SR-11.20.72
NU
MBER 917 . 25740
MO
DEL
RACTOR--
5T / 16 T 6
I
1
~76
rrJJ 77
- 15 -
7
8
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•
parts
repa I r
ST/16 TRACTOR--MODEL NUMBER 917.25740
KEY PART DESCRIPTION KEY PART DESCRIPTION
NO. NO. NO. NO.
59 1689R Bearing
1 2680R Dashboard Panel 60 1513P Washer 13/32 x 13/16 x 16 Ga.
2634A605 Dashboard With Clips (Inc. Key 61 1360R Cover-R.H.
No.3, Does not Inc. Key No. 1) 62 1361R Tank and Battery Support
31998R DashboardCI ip Bracket-R .H.
42794R Gri II Screen-Center 63 7218Hl Tank and Battery Support
52672R Gri II Screen-Upper Bracket-L.H.
6634A536 Hood Weldment 64 2789R Cover-L.H.
7 2676R Grill-Upper 65 634A603 Tank and Battery Support
8 3651R Decal-Grill Weldment With Bearings
9 3624R Decal-Hood Strip 66 9770H Fuel Tank Strop
10 3300R DecaI-Sears 67 9768H Fuel Tank
11 2674R Gri II Screen-L.H. 68 9769H Fuel Tank Cap and Gauge
12 2677R Gri II-Lower 69 2796R Choke Control
13 2678R Grill-Side 70 634A273B Throttle Contro I Lever
14 2673R Grill Screen-R.H. 71 3747R Gri II Cable
lS 4939M Retainer Spring 72 1002P Lockwasher ~
16 640A45 Belt Guard Weldment 73 1506P Washer 9/32 x 5/8 x 16 Ga.
17 3154P Slotted Fillister Hd. Machine 74 1505P Washer 9/32 x 71x 14 Ga.
Screw ~-20 x 2~ 75 503P Sq. Nut ~-20
18 8238H Split Spacer 76 1004P Lockwasher 3/8
19 347H Huglock Nut 77 501P Hex Nut 3/8-16
20 6485H Hinge 78 1003P Lockwasher 5/16
21 6433H Front Channel Cover Support 79 504P Hex Nut 5/16-18 UNC
22 9011H Belt Retainer 80 1006P Lockwasher #10
23 634A28 Front Channel Cover and Weld 81 505P Hex Nut #10-24
Bolts 82 1517P Washer 7/16 x 1 x 14 Ga.
24 634A544 Engine Mount Assembly 83 9771H Fuel Line Fitting
25 634A493 Attachment Clutch Lever 84 l685H Lock Nut
Assembly 85 9521H Drive Rivet
26 4379H Handle Grip 86 5394H Lock Nut
27 511P Lock 'Nut 3/8-24 UNF A5551P Hex Washer Hd. Thd. Cutting
28 634A494 Hanger Weldment-R.H. Front Screw )4-20 UNC x 71
29 1689E Bushing B503P Hex Nut ~-20
30 1003P 5/16 Lockwasher C3153P Rd. Hd. Phillips Mach. Screw
31 504P 5/16-18 UNC Hex Nut ~-20 x 1~
32 5501P Pan Head Phillips Thread Cutting D3027P Hex Bolt 3/8-16 x 171
Screw #10-24 UNC x 3/8 Type T E3010P Hex Bolt 5/16-18 x ~
33 2249R Safety Switch F3012P Hex Bolt 5/16-18 x 1~
34 634A492 Switch Bracket Assembly G3023P Hex Bolt 3/8~16 x 1
35 634A491 Belt Tightener Arm and Idler H4514P Hex Socket Headless Set Screw
Shaft
c.s. 5/16-18 x S/8
36 5999H Spring Washer I3021P Hex Bolt 3/8-16 UNC x ~
37 3013P Hex Bolt 5/16-18 UNC x 171 J505P Hex Nut #10-24
38 6479Hl Belt Guide Finger K3122P Slotted Truss Hd. Mach. Screw
39 1520P Washer .469 I.D. x 1-1/8 x 11 Ga. #10-24 x 3/8
40 663SH Flat Idler L3137P Hex Bolt 3/8-16 x 1~ H.T.
41 1001P Lockwasher 7/16 M28P Carriage Bolt 3/8-16 xl H.T.
42 SOOP Hex Nut 7/16-14 N3013P Hex Bolt 5/16-18 x 171
43 634A101 Drawbar W/Weldnuts
0
5501P Phillips Pan Hd. Thread Cutting
44 634A543 Chassis Assembly W/Bearings Screw #10-24 x 3/8 Type T
4S 2804R Model Number Plate P3022P Hex Bolt 3/8-16 UNC x 7/8
46 634A355 Hanger Weldment-L.H. Front
Q
55S4P Phillips Pan Hd. Thread Cutting
47 2702R Shift Pattern Plate Screw #10-i6 Hi-Lo Thd. x
71
48 1518P Washer 15/32 x 11/16 x 16 Ga. Blunt Point
49 31S5P Hex Bolt 7/16-14 x
271
R3035P Hex Bolt 7/16-14 x 1~
50 8704Hl Spacer S3134P Hex Bolt 5/16-18 UNC x ~
51 640A44 Mounting Plate andGuide Heat Treated
Assembly T3115P Hex Bolt ~-20 UNC x 5/8
52 634A104 Engine Pulley W/Set Screws U3021P Hex Bolt 3/8-16 UNC x ~
(Inc. Key Letter H)
V
3023P Hex Bolt 3/8-16 xl
53 9396E Sq. Key ~ x 2 20l7R Maintenance Decal (Located on
54 2802R Muffler Underside of Hood)
55 2949R Gasket-Muffler 2808R Owners Manual
56 634A546 Engine, Craftsman 16 H.P. Model
No. 143.630012
57 704R Air Inlet Screen
58 503P Hex Nut ~-20 UNC
2808R-11.20.72 - 16 -
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repa ir parts
2808R-11.20.72
TR
ACTOR--MO ST / 16
- 17 -
DEL NUMBER 917.25740
27
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repair parts
2808R-ll.20.72
5T/16 TRACTOR--MODEL NUMBER 917.25740
KEY PART DESCRIPTION
NO. NO.
11528P Washer 13/16 x 1~ x 14 Ga.
21309H Bearing
3634A521 Front Axle with Bearings
(Inc. Key No.2)
44764H Huglock Nut 5/8-11 UNC
55000P E-Ring
6634A277 Spindle Complete-R.H.
79040H Flanged Bearing
8511P Nylock Nut, 3/8-24 UNF
9150SP Washer 9/32 x
Y2 x 14 Ga.
10
6855M
Grease Fitting
11 2699R Hex Bolt
12 634A278 Spindle Complete-L.H.
13 1808R Tie Rod and Joints
14 1552P Washer 49/64 x 1~ x 16 Ga.
15
634M8
Steering Bell Crank Weldment
16 9318H Drag Link and Joints
17
6842M
Grease Fitting
18 634A95 Steering Gear Sector and Arm
19 2795R Front Tire-Tubeless
20 795R Tire Valve
21 2891R Front Wheel
22 1562P Washer 25/32 x
1Y2 x 16 Ga.
23 S785H Wear Washer
24 4831H Elastic Nut %-16 UNF
25 8763H Dust Cap-Outer
26 3008P Hex Bolt 5/16-18 x
Y2
27 8798H Roll Pin 5/32 x 1
28
6856M
Grease Fitting %-28 Taper Thread
- 18 -
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repair parts
ST 1 16 TRACTOR--MODEL NUMBER 917 . 25740
35
\~===---
A B C D E F
, ,
if ,
i i
-==44 -===47 ~50 c::e:>52 ~50 ~50
~45 ~48 1I:JJ51 £IJ53 UJ51 ~51
tl:IJ46 .:::0 49
2808R-l1.20.72
-19 -
~1
£1)51
.......--20
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