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4

SERVICE

Use extreme care in handling gasoline and other
fuels. They are extremely flammable and the vapors
are explosive.

Store fuel only in containers specifically designed
and approved for the storage of such materials.

Avoid creating a source of ignition for spilled fuel.
Do not start the engine until fuel vapors dissipate.

Always stop the engine and allow it to cool before 
filling the fuel tank. Never remove the cap of the
fuel tank, or add fuel, when the engine is hot. Never
operate the unit without the fuel cap securely in
place. Loosen the fuel tank cap slowly to relieve
any pressure in the tank.

Mix and add fuel in a clean, well-ventilated area 
outdoors where there are no sparks or flames.
Slowly remove the fuel cap only after stopping
engine. Do not smoke while fueling or mixing fuel.
Wipe up any spilled fuel from the unit immediately. 

Move the unit at least 30 feet (9.1 m) from the fuel-
ing source and site before starting the engine. Do
not smoke, keep sparks and open flames from the
area while adding fuel or operating the unit.

Stop the engine for maintenance, repair, to install or
remove the tines. The unit must be stopped and
the tines no longer turning to avoid injury.

The tines become very sharp from use. Always
wear heavy gloves when handling, removing,
installing or cleaning the tines.

Use only replacement parts and accessories
approved by the manufacturer for this unit. These
are available from your authorized service dealer.
Use of any non approved parts or accessories
could lead to serious injury to the user, or damage
to the unit, and void your warranty.

This unit has a clutch. The tines remain stationary
when the engine is idling. If they do not, have the
unit adjusted by an authorized service technician.

Keep unit clean of vegetation and other materials.
They may become lodged between the tines and
gearbox or guard.

To reduce fire hazard, replace faulty muffler and
spark arrestor, keep the engine and muffler free
from grass, leaves, excessive grease or carbon
build up.

Never store the unit, with fuel in the tank, inside a
building where fumes may reach an open flame or
spark.

Allow the engine to cool before storing or transport-
ing. Be sure to secure the unit while transporting.

Store the unit in a dry place, either locked up or up
high to prevent unauthorized use or damage. 
Keep out of the reach of children.

Clean the tines with a hose and water. Wipe the
tines with a light machine oil to prevent rust.

Never douse or squirt the engine with water or any
other liquid. Keep handles dry, clean and free from
debris. Clean after each use, see Off-Season
Storage.

Keep these instructions. Refer to them often and
use them to instruct other users. If you loan some-
one this unit, also loan them these instructions.

WARNING – YOUR RESPONSIBILITY:

Restrict the use of this power machine to persons

who read, understand and follow the warnings and instructions in this manual and on the machine.

WARNING - READ OPERATOR'S MANUAL

Read the Operator’s Manual(s) and follow all warnings and safety instructions. 
Failure to do so can result in serious injury to the operator and/or bystanders.

WEAR EYE AND HEARING PROTECTION

Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection
meeting ANSI Z87.1 standards and ear protection when operating this unit.

KEEP BYSTANDERS AWAY

Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area. 

THROWN OBJECTS CAN CAUSE SEVERE INJURY 

Do not operate unit without proper attachments and guards in place.

HOT SURFACE WARNING

Do not touch a hot muffler, cylinder or gearbox. You may get burned. These parts get extremely hot
from operation. When turned off they remain hot for a short time.

CULTIVATORS – ROTATING TINES CAN CAUSE SEVERE INJURY

Stop the engine and allow the tines to stop before installing or removing tines, or before cleaning or
performing any maintenance. Keep hands and feet away from rotating tines.

Summary of Contents for 21A-120R000

Page 1: ...r 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 Californi...

Page 2: ...nt or an authorized dealer You can locate the model number by standing in the operating position behind the unit and looking on the left side of the engine next to the On Off Stop Control Switch A sam...

Page 3: ...nside a closed room or building Breathing exhaust fumes can kill Operate this unit only in a well ventilated area outdoors Wear safety glasses or goggles that are marked as meeting ANSI Z87 1 standard...

Page 4: ...ard replace faulty muffler and spark arrestor keep the engine and muffler free from grass leaves excessive grease or carbon build up Never store the unit with fuel in the tank inside a building where...

Page 5: ...IVATOR SETTING UP YOUR CULTIVATOR Installing The Wheel Bracket Assembly WARNING To avoid injury from the tines wear heavy gloves and a long sleeve shirt when installing the wheel bracket assembly 1 Wi...

Page 6: ...ion the two 2 handlebar clamps with one on each side near the top of the handlebar Swing the handlebar up until it sets to the outside of the two mounting brackets on the engine See Figure 6 NOTE Posi...

Page 7: ...e of the trigger See Figure 11 4 Release the throttle trigger and guide the cable up into the slot of the trigger housing 5 Push the throttle cable housing into the trigger housing until it snaps into...

Page 8: ...ontrols the engine speed See Figure 14 On Off Stop Control The On Off Stop control switch is located on the left side mounting bracket It is used to turn the unit on and off The switch must be in the...

Page 9: ...maximum reliability pay strict attention to the oil and fuel mixing instructions on the 2 cycle oil container Using improperly mixed fuel can severely damage the engine Thoroughly mix the proper rati...

Page 10: ...as though it wants to run normally 2 to 5 pulls NOTE Squeeze the throttle control until the engine has started and warmed up 6 Place the choke lever in the PARTIAL choke position B See Figure 18 NOTE...

Page 11: ...grips firmly slowly lower the cultivator until the tines make contact with the ground See Figure 20 5 As cultivating action begins pull back on the cultivator so that the tines can penetrate the grou...

Page 12: ...TIVATOR in Section 6 Adjusting Idle Speed WARNING This unit will need to be running during idle speed adjustment Wear protective clothing and observe all safety instructions to prevent serious persona...

Page 13: ...iver 3 Pull the cover from the engine Do not force 4 Remove the air filter from behind the air filter muffler cover See Figure 24 4 Wash the filter in detergent and water Rinse the filter thoroughly S...

Page 14: ...the cylinder 4 Install a correctly gapped spark plug in the cylin der head Tighten by turning the 5 8 inch socket clockwise until snug If using a torque wrench torque to 110 120 in lb 12 3 13 5 N m Do...

Page 15: ...rized use or damage Store the unit in a dry well ventilated area Do not store next to corrosive materials such a fertilizer Store the unit out of the reach of children ENGINE WILL NOT START ENGINE WIL...

Page 16: ...41 1 2 3 8 10 12 3 4 5 7 6 11 15 16 50 51 14 13 20 52 22 17 18 19 21 37 38 39 40 42 41 32 33 26 27 28 30 41 34 36 35 30 25 44 29 43 49 45 46 47 48 24 31 23 9 SECTION 9 PARTS LIST FOR MODEL 21A 120R00...

Page 17: ...ainer Assembly 31 611061 Rope Guide 32 180317 Fuel Tank Guard Assembly 33 181079 Pull Handle 34 613103 Rope 35 181912 Housing Screw 36 182776 Starter Housing Assembly includes items 28 31 33 35 37 182...

Page 18: ...18 1 1 3 2 4 11 12 13 10 17 18 19 20 22 25 21 26 22 28 27 27 29 30 24 23 24 28 29 14 15 16 9 6 7 8 6 9 5 MODEL 21A 120R000...

Page 19: ...ndle Clamp 15 181815 Nut 16 145569 Anti Rotation Screw 17 181575 Grip 18 180943 Drive Shaft Housing Assembly 19 181577 Flexible Drive Shaft 20 181578 Retainer Sleeve includes 21 21 180288 Sleeve Retai...

Page 20: ...set forth below is given by MTD SOUTHWEST INC MTD with respect with new merchandise purchased and used in the United States its possessions and territories MTD warrants this product against defects in...

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