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11

Shaft Tube

Grip

Figure 20

Figure 20

Transporting the Unit

WARNING: To prevent serious personal
injury, always stop the engine when 
operation is delayed or when transport-
ing the unit from one location to another.

1.

Stop the engine.

2.

Slide the wheel bracket assembly all the way
down.

3.

Tilt the unit back until the tines clear the ground.

4.

Push or pull the unit to the next location to be 
cultivated.

NOTE: The cultivator can also be carried by the shaft
tube grip. See Figure 21.

Using Your Cultivator

WARNING: Dress properly to reduce the
risk of injury when operating this unit.
Do not wear loose clothing or jewelry.
Wear eye and ear/hearing protection.
Wear heavy, long pants, boots and
gloves. Do not wear short pants, sandals
or go barefoot.

1.

Move the cultivator to the work area prior to 
starting the engine. The cultivator may be 
transported by pushing it on wheels or carrying it
by the shaft tube grip.

WARNING: To prevent serious personal
injury, never pick-up or carry the unit
while the engine is running.

2.

Start the unit per Starting Instructions.

3.

With the engine running and the tines off the
ground, depress the throttle control to increase the
engine speed.

4.

Holding both of the handlebar 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
ground.

6.

Once the ground has been broken, continue at a
moderate pace until you are familiar with the 
controls and the handling of the cultivator.

7.

Pull the cultivator backwards to improve the depth
of cultivation and reduce your effort.

8.

If the tines are digging too deep or not deep
enough, adjust the tines per Adjusting Tine Depth.

WARNING: To prevent serious injury,
never do adjustments, maintenance or
repairs with unit running. Disconnect
spark plug wire to ensure the unit will
not start.

1.

Stop the engine and disconnect the spark plug wire.

2.

Loosen (do not remove) the two wing nuts on the
tine guard. See Figure 20.

3.

Slide the wheel bracket assembly down for 
shallower and up for deeper tine penetration.

4.

Once the tines are in the desired position, tighten
the wing nuts, making sure that the carriage bolts
are seated properly through the bracket.

5.

If the tine depth is not correct, repeat steps 2 to 4.

6.

Reconnect the spark plug wire.

Figure 21

Down

Up

Adjusting Tine Depth

Tine adjustment will vary depending on the type of
soil being cultivated and how it will be used.
Generally, adjusting the tines to break the soil 4 to 6
inches is 
recommended for most gardens. Adjust the tines as 
follows:

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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