5.0 HP
14 INCH TINE WIDTH
REAR TINE TILLER WITH
COUNTER ROTATING TINES
• Assembly
• Operation
• Customer Responsibilities
• Service and Adjustment
• Repair Parts
Page 2
SAFETY RULES
A
TRAtNING
• Read the operating and service instruction manual care
fully. Be thoroughly familiar with the controls and the
proper use of the equipment. Know how to stop the unit
and disengage the controls quickly.
• Never allow children to operate the equipment. Never
allow adults to operate the equipment without proper
instruction.
• Keep the area of operation clear of all persons, particu
larly small children, and pets.
PREPARATION
• Thoroughly inspectthearea where the equipment is to be
used and remove all foreign objects.
• Disengage all clutches and shift into neutral before
starting the engine (motor).
• Do not operate the equipment without wearing adequate
outer garments. Wear footwear that will improve footing
on slippery surfaces.
• Handle ftiel with care; it is highly flammable.
• Use an approved fuel container.
• Never add fuel to a running engine or hot engine.
• Fill fuel tank outdoors with extreme care. Never fill
fuel tank indoors,
• Replace gasoline cap securely and clean up spilled
fuel before restarting.
• Use extension cords and receptacles as specified by the
manufacturer for all units with electric drive motors or
electric starting motors,
• Never attempt to make any adjustments while the engine
(motor) is running (except where specifically recom
mended by manufacturer).
OPERATION
• Do not put hands or feet near or under rotating parts,
• Exercise extreme caution when operating on or crossing
gravel drives, walks, or roads. Stay alert for hidden
hazards or traffic. Do not carry passengers.
• After striking a foreign object, stop the engine (motor),
remove the wire from the spark plug, thoroughly inspect
the tiller for any damage, and repair the damage before
restarting and operating the tiller.
• Exercise caution to avoid slipping or falling.
• If the unit should start to vibrate abnormally, stop the
engine (motor) and check immediately for the cause.
Vibration is generally a warning of trouble.
Safe Operation Practices for Walk-Behind Powered Rotary Tillers
A
• Stop the engine (motor) when leaving the operating
position.
• Take all possible precautions when leaving the machine
unattended. Disengage the power take-off, lower the
attachment, shift Into neutral, stop the engine, and
remove the key,
• Before cleaning, repairing, or inspecting, shut off the
engine and make certain all moving parts have stopped.
Disconnect the spark plug wire, and keep the wire away
from the plug to prevent accidental starting. Disconnect
the cord on electric motors.
• Do not run the engine indoors; exhaust fumes are dan
gerous-
• Never operate the tiller without proper guards, plates, or
other safety protective devices in place.
• Keep children and pets away.
■ Do not overload the machine capacity by attempting to till
too deep at too fast a rate.
• Never operate the machine at high speeds on slippery
surfaces. Look behind and use care when backing.
• Never allow bystanders near the unit.
• Use only attachments and accessories approved by the
manufacturer of the tiller (such as wheel weights,
counterweights, cabs, and the like).
• Never operate the tiller without good visibility or light.
• Be careful when tilling In hard ground. The tines may
catch in the ground and propel the tiller forward. If this
occurs, let go of the handlebars and do not restrain the
machine.
MAINTENANCE AND STORAGE
• Keep machine, attachments, and accessories In safe
working condition,
• Check shear bolts, engine mounting bolts, and other
bolts at frequent intervals for proper tightness to be sure
the equipment is in safe working condition.
• Never store the machine with fuel in the fuel tank inside
a building where ignition sources are present, such as hot
water and space heaters, clothes dryers, and the like.
Allow the engine to cool before storing in any enctosure.
• Always refer to the operator’s guide instructions for
important details if the tiller is to be stored for an extended
period.
-IMPORTANT -
Cautions, importants, and Notes are a means of attracting attention to important or critical information in this manual.
IMPORTANT: USED TO ALERT YOU THAT THERE
IS A POSSIBILITY OF DAMAGING THIS EQUIPMENT.
NOTE: Gives essential information that will aid you to
better understand, incorporate, or execute a particular
set of instructions.
A
CAUTION; Look for this symbol to
point out important safety precau
tions. It means - Attention! Become
Alert! Your safety is Involved.
Page 3
CONGRATULATIONS on your purchase of a Sears Tiller.
It has been designed, engineered and manufactured to
give you the best possible dependability and performance.
Should you experience any problems you cannot easily
remedy, please contact your nearest authorized Sears
Service Center/Department. They have competent, welltrained technicians and the proper tools to service or repair
this unit.
Please read and retain this manual. The instructions will
enable you to assemble and maintain your tiller properly.
Always observe the "SAFETY RULES".
MODEL
NUMBER
917.2997S1
PRODUCT SPECIFICATIONS
HORSEPOWER:5.0 HP
DISPLACEMENT:
GASOLINE CAPACITY:
OIL (20 02. CAPACITY):
SPARK PLUG (GAP .030 IN.); Champion
12.57 cu. in.
3 QUARTS
(UNLEADED)
SAE SOW
(SAE10W30)
RJ19LM
SERIAL
NUMBER
DATE OF
PURCHASE
THE MODEL AND SERIAL NUMBERS WILL BE
FOUND ON THE MODEL PLATE ATTACHED TO
THE TOP OF THE TRANSMISSION.
YOU SHOULD RECORD BOTH SERIAL NUMBER
AND DATE OF PURCHASE AND KEEP IN A SAFE
PLACE FOR FUTURE REFERENCE.
MAINTENANCE AGREEMENT
A Sears Maintenance Agreement Is available on this prod
uct. Contact your nearest Sears store for details.
CUSTOMER RESPONSIBILITIES
• Read and observe the safety rules.
• Follow a regular schedule in maintaining, caring for and
using your tiller.
• Follow the instructions under the “Customer
Responsibilities" and “Storage" sections of this Owner’s
Manual.
LIMITED ONE YEAR WARRANTY ON CRAFTSMAN TILLER
For one year from date of purchase, when this Craftsman Tiller is maintained, lubricated, and tuned up according to
the operating and maintenance instructions in the owner’s manual. Sears will repair free of charge any defect in
material or workmanship.
This Warranty does not cover:
• Expendable items which become worn during normal use, such as tines, spark plugs, air cleaners and belts.
• Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to
maintain the equipment according to the instructions contained in the owner’s manual.
• If this Craftsman Tiller is used for commercial or rental purposes, this Warranty applies for only 30 days from the
date of purchase,
WARRANTY SERVICE IS AVAILABLE BY RETURNING THE CRAFTSMAN TILLER TO THE NEAREST SEARS
SERVICE CENTER/DEPARTMENT IN THE UNITED STATES. THIS WARRANTY APPLIES ONLY WHILE THIS
PRODUCT IS IN USE IN THE UNITED STATES.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state,
SEARS, ROEBUCK AND CO-, D/731CR-W SEARS TOWER, CHICAGO, IL 60684
- IMPORTANT.
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered,
brush-covered or grass covered land unless the engine’s exhaust system Is equipped with a spark arrester meeting applicable
local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
In the state of California the above Is required by law (Section 4442 of the California Public Resources Code), Other states
may have simitar laws. Federal laws apply on federal lands. See your Sears Authorized Service Center for spark arrester.
Refer to the Repair Parts section of this manual for part number. •
SERVICE & ADJUSTMENTS..............................16-19
.....3
STORAGE.......
TROUBLESHOOTING......
REPAIR PARTS-TILLER
REPAIR PARTS-ENGINE
.....
.
.
.
....................................
_____________
................................. ...11
...................
....................
........................
.
...11,15
.
.......
.....
..„..11
20
H
..........
.........................
...................
.,...„15
M
..........
.............
..............................
...........................
...................
.......
.
................................
........................
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.......
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.
.
.
.
.,15
.....
.......
16
16
.....
.11,15
.....
......11
....
......10
.....
....
.....
....
......15
...............................................
.......................... ....21
...........................
........
.................
R
Repair Parts .................
11
16
12
10
20
15
„16
„22
14
3
,12
,12
,11
Rules for Safe Operation..
Service & Adjustments:
Carburetor
Handle Height.............
Side Shields
Throttle .................
Tines.,
V-Belt (Ground Drive)
Wheels..........
Service:
Repair Parts
Service Record
Shear Pins:
Operation........
Repair Parts..-..,..
Spark Plug:
Gap ................
Maintenance.......
Storage:
Fuel System
Tiller
.................
Tilling.........
Tines;
Arrangement/Replacement
Operation
Repair Parts............................27
Shear Pins
Transmission;
Maintenance
11
13
10
10
Repair Parts
Troubleshooting
Transporting
Warranty
Wheels:
.....
Adjustments
Removal
Repair Parts
............
...............
.................
.........
................
......................
...............................
..............................12
......
W
......
.2
...5
..
....
.
.
.....
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..22-27
..28-31
.
.
.
.
.20
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......19
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....
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....
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......
10
.........
.
.......
.
......
.
......
11
19
18
18
3
13
16
24
Page 5
ACCESSORIES
These accessories were available when the tiller was purchased. They are also available at most Sears Retail outlets,
Catalog and Service Centers. Most Sears Stores can order repair parts for you when you provide the model number
of your tiller.
ENGINE
TILLER PERFORMANCE
TILLER MAINTENANCE
Page 6
ASSEMBLY
TO ASSEMBLE YOUR TILLER YOU WILL NEED:
(1) Utility knife
(1) Wire cutter
(1) Screwdriver
(1) Tire pressure gauge
(1) Pair of pliers
(1) 9/16" wrench {or 9/16" socket, ratchet, and extension:
or adjustable wrench)
OPERATOR’S POSITION (See Fig. 1)
The right hand (R.H.) and left hand (L.H.) sides of your tiller
are determined from the operator’s position while standing
behind tiller.
CONTENTS OF HARDWARE PACK
(2) Handle Locks
o
-------
-
(1) Flat Washer 13/32x 1 x 11 Ga.
(2) Hairpin Clips
(2) Carriage Bolts 3/8-16 UNC x 1 Gr. 5 (2) Center Locknuts 3/8-16 UNC
Q
(1) Handle Lock Lever
fibril
î£5iR!iW!Sf<i«ni
(1) Cable Clip
(1) Owner's Manual
Page 7
ASSEMBLY
UNPACKING CARTON (See Fig. 2)
CAUTION: Be careful of exposed
staples when handling or disposing of
A
IMPORTANT: WHEN UNPACKING AND ASSEMBLING
TILLER, BE CAREFUL NOT TO STRETCH OR KINK
CABLES.
• While holding handle assembly, cut cable ties securing
handle assembly to top frame and depth stake. Let
handle assembly rest on tiller.
• Remove top frame of carton.
• Slowly ease handle assembly up and place on top of
carton.
• Cut down right hand front and right hand rear corners
of carton, lay side carton wall down.
• Remove packing material from handle assembly.
• Separate shift rod from handle assembly.
cartoning material.
Grasp handle assembly. Hold In "up” position, Be sure
handle lock remains in gearcase notch. Slide handle
assembly into position.
Rotate handle assembly down to install two carriage
bolts and locknuts. Insert rear carriage bolt (Fig. 5) first,
with head of boit on L.H. side of tiller. Lower the handle
assembly. Tighten bolts so handle moves with some
resistance.
Insert second handle lock (with teeth inward) in the slot
of the handle base.
Place flat washer on threaded end of handle lock lever.
Insert handle lock lever through handle base and
gearcase.
With handle assembly in lowest position, securely
tighten handle lock lever by rotating clockwise. Leav
ing handle assembly in lowest position will make it
easier to remove tiller from carton.
INSTALL HANDLE (See Figs. 3,4, and 5)
• Insert one handle lock (with teeth facing outward) in
gearcase notch. (Apply grease on smooth side of
handle lock to aid in keeping lock in place until handle
assembly is lowered into position.)
Page 8
ASSEMBLY
CONNECT SHIFT ROD (See Fig. 6)
• Insert end of shift rod farthest from bend into hole of
shift lever indicator.
• insert hairpin dip through hole of shift rod to secure.
• Insert other end of shift rod into hole in shift lever.
• Insert second hairpin clip through hole of shift rod.
ATTACH THIS END
TO SHIFT LEVER
INDICATOR
ATTACH THIS
END TO SHIFT
LEVER
SHIFT HOD
REMOVE TILLER FROM CRATE
• Make sure shift lever indicator is in “N" (neutral) posi
tion (See Fig, 6)
• Tilt tiller forward by lifting handle. Separate cardboard
cover from leveling shield.
• Rotate tiller handle to the right and pull tiller out of
carton.
INSERT CABLE CLIP (See Fig. 7)
• Insert plastic cable clip into hole on the back of handle
column. Push cables into dip.
SHIFT LEVER
"
SHIFT ROD
rr
FIG. 6
CHECK TIRE PRESSURE
The tires on your unit were overinflated at the factory for
shipping purposes. Correct and equal tire pressure is
important for best tilling performance.
• Reduce tire pressure to 20 PSI.
HANDLE HEIGHT
• Handle height may be adjusted to better suit operator.
(See “TO ADJUST HANDLE HEIGHT' in the Service
and Adjustments section of this manual).
HAIRPIN CUP
8
Page 9
KNOW YOUR TILLER
OPERATION
MEETS ANSI SAFETY REQUIREMENTS
Our tillers conform to the safety standards of the American National Standards Institute.
DRIVE CONTROL BAR - Used to engage tines.
DEPTH STAKE ’ Controls depth at which tiller will dig.
LEVELING SHIELD - Levels tilled soil.
OUTER SIDE SHIELD ■ Adjustable to protect small plants
from being burled.
THROTTLE CONTROL - Used to control engine speed.
SAFETY DECAL
The decal shown below is located on the handle of your tiller.
■ PUSH DRIVE COf'ITROL
DOWN TO ENGAGE
TILLER
• RELEASE TO STOP
BEFORE USING REVERSE
REDUCE ENGINE SPEED. DO NOT
A
STAND DIRECTLY BEHIND TILLER.
SHIFT LEVER ' Used to shift transmission gears.
SHIFT LEVER INDICATOR - Shows which gear the
transmission Is In.
RECOIL STARTER HANDLE - Used to start the engine,
CHOKE CONTROL - Used when starting a cold engine.
A CAUTION
HEAD THE OPEHATOH S MANUAL
KNOW LOCATION AMD FUNCTION OF ALL CONTROLS.
KEEP ALL SAFETY DEVICES AND SHIELDS IN PLACE.
NEVER ALLOW CHILDREN OR UNINSTHUCTEO ADULTS
SHUT Opi&ylalroRE UNCLOGOINOTINES OH
MAKING REPAIHS. .
KEEP BySTAHDERS AWAY FROM MACHINE. A
KEEP AWAY FBOH ROTATING PABTS.
TO AVOID INJURY
Page 10
OPERATION
The operation of any tiller can result In foreign objects thrown Into the eyes, which can
result In severe eye damage. Always wear safety glasses or eye shields before starting
your tiller and while tilling. We recommend wide vision safety mask for over the spectacles
or standard safety glasses.
HOW TO USE YOUR TILLER
Know how to operate all controls before adding fuel and
oil or attempting to start engine.
STOPPING (See Fig. 9)
TINES AND DRIVE
• Release drive control bar to stop movement.
• Move shift lever to "N” (neutral) position.
ENGINE
• Move throttle control to "STOP” position.
• Never use choke to stop engine.
TINE OPERATION - WITH WHEEL DRIVE
• Always release drive control bar before moving shift
lever into another position.
• Tine movement is achieved by moving shift lever to‘T’
(till) position and engaging drive control bar,
DEPTH STAKE (See Fig. 10)
The depth stake can be raised or lowered to allow you more
versatile tilling and cultivating, or to more easily transport
your tiller.
TILLING (See Fig. 11)
• Release depth stake pin. Putl the depth stake up for
Increased tilling depth, Place depth stake pin in hole of
depth stake to lock in position.
• Place shift lever indicator in‘T* position.
• Hold the drive control bar against the handle to start
tilling movement. Tines and wheels will both turn.
• Move throttle control to "FAST’ position for deep tilling.
To cultivate, throttle control can be set at any desired
speed, depending on how fast or slow you wish to
cultivate.
FORWARD - WHEELS ONLY/TINES STOPPED
• Release drive control bar and move shift lever indicator
to "F" (forward) position. Engage drive control bar and
tiller will move forward.
REVERSE - WHEELS ONLY/TINES STOPPED
• DO NOT STAND DIRECTLY BEHIND TILLER.
• Release the drive control bar.
• Move throttle control to "SLOW” position.
• Move shift lever indicator to “R" (reverse) position.
• Hold drive control bar against the handle to start tiller
movement.
10
Page 11
OPERATION
TURNING
• Release the drive control bar,
• Move throttle control to "SLOW" position,
• Place shift ¡ever indicator in "F" (forward) position.
Tines will not turn.
• Lift handle to raise tines out of ground.
• Swing the handle In the opposite direction you wish to
turn, being careful to keep feet and legs away from
tines.
• When you have completed your turn-around, release
the drive control bar and lower handle. Place shift lever
in 'T‘ (till) position and move throttle control to desired
speed. To begin tilling, hold drive control bar against
the handle.
OUTER SIDE SHIELDS (See Fig. 11)
The front edges of the outer side shields are slotted so that
the shields can be raised for deep tilling and lowered for
shallow tilling to protect small plants from being buried.
Loosen nut “A" in slot and nut "B", Move shield to desired
position (both sides). Retighten nuts.
TRANSPORTING
CAUTION: Before lifting or transport
ing, allow tiller engine and muffler to
A
cool. Disconnect spark plug wire. Drain
gasoline from fuel tank.
Release the depth stake pin. Move the depth stake
down to the top hole for transporting the tiller. Place
depth stake pin in hole of depth stake to lock In position,
This prevents tines from scuffing the ground.
Place shift lever indicator in "F" (forward) position for
transporting.
Hold the drive control bar against the handle to start
tiller movement. Tines will not turn.
Move throttle control to desired speed.
CAUTION: Before operating your tiller
for the f i rst time, study this section and
the “SAFETY RULES" on page 2.
A
Always release drive control bar before
moving shift lever Into another posi
tion.
Don’t back yourself into a solid ob
struction such as a tree, fence, etc.
BEFORE STARTING ENGINE
CHECK ENGINE OIL LEVEL (See Fig. 12)
IMPORTANT: BE VERY CAREFUL NOT TO ALLOW DIRT
TO ENTER THE ENGINE WHEN CHECKING OR ADDING
OIL OR FUEL, USE GLEAN SAE 30 OR 10W30 WEIGHT
OIL AND STORE IN APPROVED. CLEAN, COVERED
CONTAINERS, ALL OILS MUST MEET A.P.I. SERVICE
CLASSIFICATION SQ. USE CLEAN FILL FUNNELS,
The engine in your unit has been shipped, from the
factory, already filled with SAE 30 summer weight oil.
With engine level, dean area around oil filler plug and
remove plug.
Engine oil should be to point of overflowing. For
approximate capacity see “PRODUCT SPECIFICA
TIONS'* on page 3 of this manual. All oil must meet
A.P.I. Service Classification SQ.
For cold weather operation you should change oil for
easier starting (See oil viscosity chart in the Customer
Responsibilities section of this manual).
To change engine oil, see the Customer Responsibili
ties section in this manual.
• Fill fuel tank. Use fresh, clean, regular unleaded
gasoline. (Use of leaded gasoline will increase carbon
and lead oxide deposits and reduce valve life,
IMPORTANT: WHEN OPERATING IN TEMPERATURES
BELOW 32°F (0°C), USE FRESH, CLEAN, WINTER
GRADE GASOLINE TO HELP INSURE GOOD COLD
WEATHER STARTING.
WARNING: Experience indicates that alcohol blended
fuels (called gasohol or using ethanol or methanol) can
attract moisture which leads to separation and formation of
acids during storage. Acidic gas can damage the fuel
system of an engine while in storage. To avoid engine
problems, the fuel system should be emptied before stor
age of 30 days or longer. Drain the gas tank, start the
engine and let it run until the fuel lines and carburetor are
empty. Use fresh fuel next season. See Storage instruc
tions for additional information. Never use engine or
carburetor cleaner products in the fuel tank or permanent
damage may occur.
CAUTION: Fill to within 1/2 Inch of top
of fuel tank to prevent spills and to
allow for fuel expansion. If gasoline Is
A
accidentally spilled, move machine
away from area of spill. Avoid creating
any source of Ignition until gasoline
vapors have disappeared.
Do not overfill. Wipe off any spilled oil
or fuel. Do not store, spill or use gaso
line near an open flame.
11
Page 12
OPERATION
TO START ENGINE (See Fig. 13)
CAUTION: Keep the tine control In
A
• Make sure spark plug wire is properly connected.
• Move shift lever indicator to “N" (neutral) position.
• Place throttle control in “FAST” position.
• Place choke control in "CHOKE" position if the engine
is cold. A warm engine may not require choking to start.
• Grasp starter handle with one hand and grasp the tiller
with other hand. Pull rope out slowly until engine
reaches start of compression cycle (rope will pull
slightly harder at this point).
• Pullropewitharapid,continuous,futlarmstroke. Keep
a firm grip on starter handle and let rope rewind slowly.
Do not let starter handie snap back against starter.
• When engine starts, slowly move choke control on
engine halfway between “CHOKE" and “RUN" posi
tions and then to "RUN" position as engine warms up,
• Move throttle control to desired running position.
• Allow engine to warm up for a few minutes before
engaging tines.
NOTE: If at a high altitude (above 3000 feet) or in cold
temperatures (below 32°F), the carburetor fuel mixture
may need to be adjusted for best engine perfor mance. See
"TO ADJUST CARBURETOR" in the Service and Adjust
ments section of this manual.
"OFF" position when starting engine.
TILLING HINTS
CAUTION: Until you are accustomed to
handling your tliler, start actual field
use with throttle in slow position (mid
way between “FAST” and “IDLE”).
Tilling is digging into, turning over, and breaking up
packed soil before planting. Loose, unpacked soil
helps root growth. Best tilling depth is 4" to 6". A tiller
will also clear the soil of unwanted vegetation. The
decomposition of this vegetable matter enriches the
soil. Depending on the climate (rainfall and wind), it
may be advisable to till the soil at the end of the gr owing
season to further condition the soil.
Soil cond itions are important for proper tilling. Tines will
not readily penetrate dry, hard soil which may contrib
ute to excessive bounce and difficult handling of your
tiller. Hard soil should be moistened before tilling:
however, extremely wet soil will “ball-up" or clump
during tilling. Wait until the soil is less wet in order to
achieve the best results. When tilling in the fall, remove
vines and long grass to prevent them from wrapping
around the tine shaft and slowing your tilling operation.
For easier handling of your tiller, leave about 8 inches
of untilled soil between the first and second tilling
passes. The third pass will be between the first and
second (See Fig. 14).
Do not lean on handle. This takes weight off the wheels
and reduces traction. To get through a really tough
section of sod or hard ground, apply upward pressure
on handle or lower the depth stake.
TINE SHEAR PINS
The tine assemblies on your tiller are secured to the tine
shaft with shear pins (See "TINE REPLACEMENT’ in the
Service and Adjustments section of this manual).
If the tiller Is unusually overloaded or Jammed, the shear
pins are designed to break before internal damage occurs
to the transmission.
• If shear pin (s) break, replace only with those shown in
the Repair Parts section of this manual.
12
Page 13
OPERATION
CULTIVATING
Cultivating is destroying the weeds between rows to pre
vent them from robbing nourishment and moisture from the
plants. At the same time, breaking up the upper layer of soil
crust will help retain moisture in the soil. Best digging depth
is 1" to 3", Lower the outer side shields to protect small
plants from being buried.
• Cultivate up and down the rows at a speed which will
allow tines to uproot weeds and leave the ground in
rough condition, promoting no further growth of weeds
and grass {See Fig. 15),
• Repeat preceding steps on left hand side
NOTE: In extremely rough conditions and while cultivating,
the wheels should be moved outward on the axle for
increased stability.
FIG. 15
ADJUST WHEELS FOR CULTIVATING (See
Figs. 16 and 17)
• Place blocks under right hand side of ti Her and remove
hairpin clip and clevis pin from right hand wheel
• Move wheel outward approximately 1 inch until hole in
inner wheel hub lines up with inner hole in axle.
Inspect Air Screen
Replace Air Cleaner Carti Wge
Clean Engine Cylinder Fins
Replace Spark Plug
1 - Change more often when operating under a heavy load or in high ambient temperatures
2 - Service more often when operating In ditty or dusty conditions.
✓
✓
✓
GENERAL RECOMMENDATIONS
The warr anty on this unit does not cover items that have
been subjected to operator abuse or negligence. To
receive full value from the warranty, the operator must
maintain unit as instructed In this manual.
Some adjustments will need to be made periodically to
properly maintain your unit.
All adjustments in the Service and Adjustments section of
this manual should be checked at least once each
season.
you should replace the spark plug, replace
check tines and belts for wear. A new
spark plug and clean air filter assure proper air-fuel
mixture and help your engine run better and last longer .
BEFORE EACH USE
• Check engine oil level.
• Check tine operation.
• Check for loose fasteners.
•THROTTLE
CONTROL
♦DEPTH STAKE
PIN
♦ LEVEUNQ
SHIELD
HINGE
LUBRICATION CHART
ENGINE
♦WHEEL
HUB
♦IDLER
BRACKET
LUBRICATION
Keep unit well lubricated (See "LUBRICATION CHART’).
• SAE 30 OH 10W30 MOTOR OIL
•* REFER TO CUSTOMER RESPONSIBIUTIES "ENGINE" SECTION
14
Page 15
A
CUSTOMER RESPONSIBILITIES
Disconnect spark plug wire before performing any maintenance (except carburetor adjustment) to
prevent accidental starting of engine.
Prevent flresl Keep the engine free of grass, leaves, spilled oil, or fuel. Remove fuel from tank before
tipping unit for maintenance. Clean muffler area of all grass, dirt and debris.
Do not touch hot muffler or cylinder fins as contact may cause burns.
ENGINE
LUBRICATION
Change the oil after the first two hours of operation and
every 25 hours thereafter or at feast once a year if the tiller
is not used for 25 hours in one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Add SAE
30 motor oil or equivalent. Tighten oil filler plug securely
each time you check the oil level. SAE 5W-30 motor oil may
be used to make starting easier in areas where temperature
is consistently 32° F (0°C) or lower.
TO CHANGE ENGINE OIL (See Figs. 18 and 19)
Determine temperature range expected before oil change.
All oil must meet API service classification SG.
• Be sure tiller is on level surface.
• Oil will drain more freely when warm.
» Catch oil In a suitable container,
• Remove drain plug.
• Tip tiller forward to drain oil,
• After oli has drained completely, replace oil drain plug
and tighten securely.
• Remove oil filler plug. Be careful not to allow dirt to
enter the engine.
• Refill engine with oil. See “CHECK ENGINE OIL
LEVEL” in the Operation section of this manual.
AIR CLEANER (See Fig. 20)
Replace air cleaner cartridge every twenty-five hours, more
often if engine is used in very dusty conditions,
• Loosen air cleaner screws, one on each side of cover.
• Remove air cleaner cover.
• Carefully remove air cleaner cartridge. Be careful. Do
not allow dirt or debris to fall into carburetor.
« Install new air cleaner cartridge. Clean and replace
cover. Tighten screws securely.
NOTE: Do not attempt to clean or oil the paper cartridge.
^
. . .
I I I
. . . . . .
I I I I I I r l
FIG. 18
COOLING SYSTEM (See Fig. 21)
Your engine is air cooled. For proper engine performance
and long life keep your engine clean.
• Clean air screen frequently using a stiff-bristled brush.
• Remove blower housing and clean as necessary.
• Keep cylinder fins free of dirt and chaff.
15
* •
Page 16
CUSTOMER RESPONSIBILITIES
MUFFLER
Do not operate tiller without muffler. Do not tamper with
exhaust system. Damaged mufflers or spark arresters
could create a fire hazard. Inspect periodically and replace
if necessary. If your engine is equipped with a spark
arrester screen assembly, remove every 50 hours for
cleaning and inspection. Replace if damaged.
SPARK PLUG
Replace spark plugs at the beginning of each tilling season
or after every 50 hours of use, whichever comes first. Spark
plug type and gap setting is shown in "PRODUCT SPECI
FICATIONS" on page 3 of this manual.
SERVICE AND ADJUSTMENTS
CAUTION: Disconnect spark plug wires from spark plug and place wire where It cannot come Into
A
TILLER
TO ADJUST HANDLE HEIGHT (See Fig. 22)
Select handle height best suited for your tilling conditions.
Handle height will be different when tiller digs into soil.
• First loosen handle lock lever,
• Handle can be positioned at different settings between
"HIGH" and “LOW" positions.
• Retighten handle lock fever securely after adjusting.
contact with plug.
TRANSMISSION
Yourtransmission is sealed and will only require lubrication
If serviced.
CLEANING
• Clean engine, wheels, finish, etc, of all foreign matter.
• Keep finished surfaces and wheels free of all gasoline,
oil. etc.
• Protect painted surfaces with automotive type wax.
We do not recommend using a garden hose to clean your
unit unless the muffler, air filter and carburetor are covered
to keep water out. Water In engine can result in a shortened
engine life.
TIRE CARE
CAUTION: When mounting tires, un
A
• Maintain 20 pounds of tire pressure. If tire pressures
are not equal, tiller will pull to one side,
• Keep tires free of gasoline or oil which can damage
rubber.
less beads are seated, overinfiatlon
can cause an explosion.
TO REMOVE WHEEL (See Fig. 23)
• Piece blocks under transmission to keep tiller from
tipping.
• Remove hairpin clip and clevis pin from wheel.
• Remove wheel and tire.
• Repair tire and reassemble.
16
Page 17
SERVICE AND ADJUSTMENTS
TO REMOVE BELT GUARD (See Fig. 24)
NOTE: For ease of removal, remove hairpin clip and clevis
pin from left wheel. Pull wheel out from tiller about 1 inch.
• Remove two (2) cap nuts and washers from side of belt
guard,
• Remove hex nut and washer from bottom of belt guard
(located behind wheel).
• Pull belt guard out and away from unit.
• Replace belt guard by reversing above procedure.
TO REPLACE GROUND DRIVE BELT (See
Figs. 24 and 25)
' Move left wheel and remove belt guard as described in
"TO REMOVE BELT GUARD”.
• Loosen belt guides “A" and "B" and also nuts "C” and
"D”.
• Remove old belt by slipping from engine pulley first.
• Place new belt In groove of transmission pulley and
Into engine pulley, BELT MUST BE IN GROOVE ON
TOP OF IDLER PULLEY. NOTE POSITION OF BELT
TO GUIDES.
• Tighten belt guides “A" and "B" and nuts "C" and "D”.
• Check belt adjustment as described below,
• Replace belt guard.
• Reposition wheel and replace clevis pin and hairpin
clip.
GROUND DRIVE BELT ADJUSTMENT (See
Fig. 25)
For proper belt tension, the extension spring should have
about 5/8 inch stretch when drive control bar Is in "EN
GAGED” position. This tension can be attained as follows:
• Loosen cable clip screw securing the drive control
cable.
• Slide cable forward for less tension and rearward for
more tension until about 5/8 Inch stretch is obtained
while the drive control bar is engaged.
• Tighten cable clip screw securely.
17
Page 18
SERVICE AND ADJUSTMENTS
TINE REPLACEMENT (See Figs. 26, 27 and
28)
CAUTION: Tines are sharp. Wear
gloves or other protection when han
A
A badly worn tine causes your tiller to work harder and dig
more shallow. Most important, worn tines cannot chop and
shred organic matter as effectively nor bury it as deeply as
good tines. A tine this worn needs to be replaced.
dling tines.
To maintain the superb tilling performance of this
machine the tines shouid be checked for sharpness,
wear, and bending, particulariythe tines which are next
to the transmission. If the gap between the tines
exceeds 3-1/2 inches they should be replaced or
straightened as necessary.
New tines should be assembled as shown in Fig. 28.
Sharpened tine edges will rotate rearward from above.
• Move throttle control lever on upper handle to "FAST'
position.
• Pull throttle cable out until engine bellcrank is back as
far as it wit! go.
• Hold cable in this position and tighten clamp screw
securely.
ENGINE
FINAL SETTING
• Start engine and allow to warm for five minutes. Make
final adjustments with engine running and drive control
bar in "DISENGAGED” position.
• With throttle control lever in "SLOW” position, turn
needle valve in (clockwise) until engine begins to die
then turn out (counterclockwise) until engine runs
rough. Turn valve to a point midway between those two
positions.
IDLE RPM ADJUSTMENT
• To adjust idle RPM, rotate throttle linkage counter
clockwise and hold against stop while adjusting idle
speed adjusting screw to obtain 1750 RPM, Release
throttle linkage.
ACCELERATION TEST
• Move throttle control lever from “SLOW" to "FAST’
position. If engine hesitates or dies, turn needle valve
out (counterclockwise) 1/8 turn. Repeat test and
continue to adjust, If necessary, until engine acceler
ates smoothly.
High speed stop is factory adjusted. Do not adjust or
damage may result.
IMPORTANT: NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH IS FACTORY SET FOR PROPER
ENGINE SPEED. OVERSPEEDINGTHE ENGINE ABOVE
THE FACTORY HIGH SPEED SETTING CAN BE
DANGEROUS. IFYOUTHINKTHE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST SEARS SERVICE CENTER, WHICH HAS
PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY
NECESSARY ADJUSTMENTS.
TO ADJUST CARBURETOR (See Fig. 30)
The carburetor has been preset at the factory and ad|ust-
ment should not be necessary. However, minor adjust
ments may be required to compensate for differences in
fuel, temperature, altitude or load. If the carburetor does
need adjustment, proceed as follows.
In general, turning the needle valve in (clockwise) de
creases the supply of fuel to the engine giving a leaner fuel/
air mixture. Turning the needle valve out (counterclock
wise) increases the supply of fuel to the engine giving a
richer fuel/air mixture.
IMPORTANT: DAMAGE TO THE NEEDLES AND THE
SEATS IN CARBURETOR MAY RESULT IF SCREWS
ARE TURNED IN TOO TIGHT,
PRELIMINARY SETTING
• Air cleaner assembly must be assembled to the carbu
retor when making carburetor adjustments.
• Be sure the throttle control cable is adjusted properly
(see above).
• With engine off, turn needle valve in (clockwise) closing
It finger tight and then turn valve out (counterclockwise)
1-1/2 turns.
19
Page 20
STORAGE
Immediately prepare your tiller for storage at the end of the
season or if the unit will not be used for 30 days or more.
CAUTION: Never store the tiller with
gasoline In the tank Inside a building
where fumes may reach an open flame
A
or spark. Allow the engine to cool
before storing In any enclosure.
TILLER
• Clean entire tiller (See “CLEANING" in the Customer
Responsibilities section of this manual),
• Inspect and replace belts, if necessary (See belt re
placement instructions In the Service and Adjustments
section of this manual).
• Lubricate as shown in the Customer Responsibilities
section of this manual,
• Be sure that all nuts, bolts and screws are securely
fastened, inspect moving parts for damage, breakage
and wear. Replace If necessary.
• Touch up ail rusted or chipped paint surfaces; sand
lightly before painting.
ENGINE
FUEL SYSTEM
IMPORTANT: IT IS IMPORTANT TO PREVENT GUM
DEPOSITS FROM FORMING IN ESSENTIAL FUEL
SYSTEM PARTS SUCH AS THE CARBURETOR, FUEL
FILTER, FUEL HOSE, OR TANK DURING STORAGE.
ALSO, EXPERIENCE INDICATES THAT ALCOHOL
BLENDED FUELS (CALLED QASOHOL OR USING
ETHANOL OR METHANOL) CAN ATTRACT MOISTURE
WHICH LEADS TO SEPARATION AND FORMATION OF
ACIDS DURING STORAGE. ACIDIC GAS CAN DAMAGE
THEFUELSYSTEM OF AN ENGINE WHILE IN STORAGE.
• Drain the fuel tank.
• Start the engine and let it run until the fuel lines and
carburetor are empty.
• Never use engine or carburetor cleaner products in the
fuel tank or permanent damage may occur.
• Use fresh fuel next season,
NOTE: Fuel stabilizer is an acceptable alternative in
minimizing the formation of fuel gum deposits during stor
age. Ada stabilizer to gasoline in fuel tank or storage
container. Always follow the mix ratio found on stabilizer
container. Run engine at least 10 minutes after adding
stabilizer to allow the stabilizer to reach the carburetor. Do
not drain the gas tank and carburetor if using fuel stabilizer.
ENGINE OIL
Drain oil (with engine warm) and replace with clean oil.
(See "ENGINE" in the Customer Responsibilities section of
this manual).
CYLINDERS
Remove spark plug.
Pour 1 ounce (29 ml) of oil through spark plug hole into
cylinder.
Pull starter handle slowly several times to distribute oil.
Replace with new spark plug.
OTHER
Do not store gasoline from one season to another.
Replace your gasoline can if your can starts to rust.
Rust and/or dirt in your gasoline will cause problems.
If possible, store your unit Indoors and cover it to give
protection from dust and dirt
Cover your unit with a suitable protective cover that
does not retain moisture. Do not use plastic. Plastic
cannot breathe which allows condensation to form and
will cause your unit to rust.
IMPORTANT: NEVER COVER TILLER WHILE ENGINE
AND EXHAUST AREAS ARE STILL WARM.
20
Page 21
TROUBLESHOOTING POINTS
PROBUEM
Will not start
Hard to start
Loss of power
CAUSE
1, Out of fuel,
2 Engine not "CHOKED" properly.
3, Engine flooded,
4, Dirty air cleaner
5, Water In fuel.
6, Clogged fuel tank
7, Loose spark plug wire
8, Bad spark plug or Improper gap,
9, Carburetor out of adjustment
1. Thfollle control not set properly,
2. Dirty air cleaner.
3 Bad spark plug or Improper gap,
4, Stale or dirty fuel,
5 Loose spark plug wire ,
6- Carburetor out of adjustment,
1, Engine Is overloaded
2, Dirty air cleaner.
3, Low oil level/dirty oil.
4, Faulty spark plug,
5, Ol! in fuel,
6, Stale or dirty fuel
7, Water In fuel,
8, Clogged fuel tank,
9, Spark plug wire loose.
10, Dirty engine air screen,
11. DIrty/clogged muffler.
12. Carburetor out of adjustment
13, Poor compression.
COBRECTIOM
1. Fill fuel tank.
2. See TO START ENGINE" In Operation section.
3. Walt several minutes before attempting to start
4. Replace air cleaner cartridge.
5. Drain fuel tank and carburetor, and refill tank with fresh
gasoline,
6 Remove fuel tank and dean
7- Make sure spark plug wire Is sealed properly on plug
8, Replace spark plug or adjust gap,
9, Make necessary adjustments.
1, Place throttle control In “FAST position,
2, Replace air cleaner cartridge,
3, Replace spark plug or adjust gap.
4, Drain fuel tank and refill with fresh gasoline.
5, Make sure spark plug wire Is seated properly on plug,
6, Make necessary adjustments.
1. Set depth stake for shallower tilling,
2. Replace air cleaner cartridge.
3. Check oil level/ohange oil.
4. Clean and regap or change spark plug.
5. Dratf\ and dean fuel tank and refill, and dean carburetor.
6. Drain fuel lank end refill with fresh gasoline
7. Drain fuel tank and carburetor, and refill tank with fresh
gasoline,
8 Remove fuel tank and dean.
9. Connect and tighten spark plug wire
10, Clean engine air screen.
11. Clean/replace muffler,
12. Make necessary adjustments
13, Contact an authorized service center.
ExGBsslva bounce/
difficult handling
Soil bails up or clumps
Engine runs but tiller
won’t move
Engine runs but labors
when tilling
Tines will not rotate
1. Ground too dry and hard.
1. Ground too wet.
1, Drive control bar Is not engaged,
2, V-belt not conectly adjusted,
3, V-bell Is off pulleyfs).
1, Tilling too deep.
2 Throttle control not properly adjusted,
3 Carburetor out of adjustment
•Indicates Parts Included In Gasket Set (397145)
NOTE; All component dimensions given in U S- inches
1 inch = 25.4 mm
(Optional Accessory)
Repair Manual For Options)
(See Repair Instruction Manual)
31
Page 32
smm
CRRFTSMRN'
OWNER’S
MANUAL
MODEL NO.
917.299751
5.0 HP
14 INCH TINE WIDTH
REAR TINE TILLER WITH
COUNTER ROTATING TINES
Each tiller has Its own model number. Each engine has Its own model
number.
The model number for your tiller will be found on a plate attached to the
top of the transmission.
The mode! number for your engine will be found on the blower housing of
the engine adjacent to the spark plug.
All parts listed herein may be ordered from any Sears, Roebuck, and Co.
Service Center and most Retail Stores.
HOW TO ORDER
REPAIR PARTS
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOW
ING INFORMATION:
• PRODUCT-REAR TINE TILLER
• MODEL NUMBER-916.299751
• ENGINE MODEL NUMBER -130202, TYPE NUMBER 3273-01
• PART NUMBER
• PART DESCRIPTION
Your Sears merchandise has added value when you consider Sears has
service units nationwide staffed with Sears trained technicians... profes
sional technicians specifically trained to insure that we meet our pledge
to you, we service what we sell.
Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.
133893 Rev. 1 10.21.91PRINTED IN THE U.S.A.
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