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SECTION 1:   IMPORTANT SAFE OPERATION PRACTICES

WARNING: This symbol points out important safety instructions which, if not followed, could endanger
the personal safety and/or property of yourself and others. Read and follow all instructions in this
manual before attempting to operate this machine. Failure to comply with these instructions may result
in personal injury. When you see this symbol— heed its warning.

WARNING: Engine exhaust, some of its constituents, and certain vehicle components contain or emit
chemicals known to State of California to cause cancer and birth defects or other reproductive harm.

DANGER: 

This machine was built to be operated according to the rules for safe operation in this 

manual. As with any type of power equipment, carelessness or error on the part of the operator can 
result in serious injury. This machine is capable of amputating hands and feet. Failure to observe the 
following safety instructions could result in serious injury or death.

Training

1.

Read, understand, and follow all instructions on the 
machine and in the manual(s) before attempting to 
assemble and operate. Keep this manual in a safe 
place for future and regular reference and for 
ordering replacement parts. 

2.

Be familiar with all controls and their proper 
operation. Know how to stop the machine and 
disengage them quickly.

3.

Never allow children under 14 years old to operate 
this machine. Children 14 years old and over should 
read and understand the operation instructions and 
safety rules in this manual and should be trained 
and supervised by a parent. 

4.

Never allow adults to operate this machine without 
proper instruction. 

5.

Keep bystanders, helpers, pets and children at least 
75 feet from the machine while it is in operation. 
Stop machine if anyone enters the area.

Preparation

1.

Thoroughly inspect the area where the equipment is 
to be used. Remove all stones, sticks, wire, and 
other foreign objects which could be tripped over 
and cause personal injury. 

2.

Wear sturdy, rough-soled work shoes and close 
fitting slacks and shirt. Loose fitting clothes or 
jewelry can be caught in movable parts. Never 
operate this machine in bare feet or sandals. 

3.

Disengage clutch levers and shift (if provided) into 
neutral (“N”) before starting the engine. 

4.

Never leave this machine unattended with the 
engine running.

5.

Never attempt to make any adjustments while 
engine is running, except where specifically 
recommended in the operator’s manual. 

6.

To avoid personal injury or property damage use 
extreme care in handling gasoline. Gasoline is 
extremely flammable and the vapors are explosive. 
Serious personal injury can occur when gasoline is 
spilled on yourself or your clothes which can ignite. 
Wash your skin and change clothes immediately.

7.

Use only an approved gasoline container.

8.

Extinguish all cigarettes, cigars, pipes and other 
sources of ignition.

9.

Never fuel machine indoors. 

10.

Never remove gas cap or add fuel while the engine 
is hot or running.  

11.

Allow engine to cool at least two minutes before 
refueling.

12.

Never over fill fuel tank. Fill tank to no more than ½ 
inch below bottom of filler neck to provide space for 
fuel expansion.

13.

Replace gasoline cap and tighten securely.

14.

If gasoline is spilled, wipe it off the engine and 
equipment. Move machine to another area. Wait 5 
minutes before starting the engine.

15.

Never store the machine or fuel container inside 
near an open flame, spark or pilot light (e.g. 
furnace, water or space heater, clothes dryer etc.).  

16.

Allow machine to cool 5 minutes before storing.

Operation

1.

Do not put hands or feet near rotating parts. Contact 
with the rotating parts can amputate hands and feet.

2.

Do not operate machine while under the influence 
of alcohol or drugs. 

3.

Never operate this machine without good visibility 
or light. Always be sure of your footing and keep a 
firm hold on the handles.

4.

Keep bystanders, helpers, pets, and children at 
least 75 feet from the machine while it is in 
operation. Stop the machine if anyone enters the 
area. 

5.

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 handle bars and 
do not restrain the machine.

6.

Exercise extreme caution when operating on or 
crossing gravel surfaces. Stay alert for hidden 
hazards or traffic. Do not carry passengers.

7.

Never operate the machine at high transport 
speeds on hard or slippery surfaces.

8.

Exercise caution to avoid slipping or falling.

9.

Look down and behind and use care when in 
reverse or pulling machine towards you.

Summary of Contents for 21A-392B401

Page 1: ...uipped 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...

Page 2: ...ed below For future reference please copy the model number and the serial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine related is...

Page 3: ...Disengage clutch levers and shift if provided into neutral N before starting the engine 4 Never leave this machine unattended with the engine running 5 Never attempt to make any adjustments while engi...

Page 4: ...If situations occur which are not covered in this manual use care and good judgment Contact your dealer or telephone 1 800 800 7310 for assistance and the name of your nearest servicing dealer Mainte...

Page 5: ...removed Attaching The Handle Assembly Remove the hex bolt and cupped washer from the top right side of the frame halves Hold the cable guide bracket on the left side of the frame as it will fall when...

Page 6: ...tine engagement lever If an excessive noise is heard when releasing either the tine drive clutch handle or lever the cable may be too loose Adjust either the forward or reverse clutch cable by looseni...

Page 7: ...ing the tiller Pull the throttle completely back to stop the engine Choke Lever The choke lever is located near the throttle control It is used to enrich the fuel mixture when starting a cold engine E...

Page 8: ...deep tilling Forward speed will decrease in this position See Figure 8 Depth Stake Adjustment The depth stake acts as a brake for the tiller and controls the depth and speed at which the machine will...

Page 9: ...ed to 13 inches by removing the outer tines Refer to the Adjustment Section When laying out plant rows be sure to allow enough width to permit cultivation between the rows In growing corn or similar c...

Page 10: ...nance instructions Maintain engine oil as instructed in the separate engine manual packed with your unit Read and follow instructions carefully Service air cleaner every ten hours under normal conditi...

Page 11: ...drive belt is assembled with the wide side of the belt against the transmission and engine pulleys Be certain to adjust the clutch control as instructed in the Assembly Section Figure 14 Forward Drive...

Page 12: ...uipped 4 Choke not in ON position 5 Blocked fuel line 6 Faulty spark plug 7 Engine flooded 1 Connect wire to spark plug 2 Fill tank with clean fresh gasoline 3 Move throttle lever to start position 4...

Page 13: ...13 Notes...

Page 14: ...del 392 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 30 37 30 43 44 45 46 47 48 49 1 2 3 4 5 2 7 50 51 52 53 54 55 55 57 58 59 60 61 62 53 5...

Page 15: ...08 Hex Bolt 5 16 18 Gr 5 34 786 0129 Cable Guide Bracket 35 710 0604A Hex Wash Screw 5 16 18 x 62 36 710 0602 Hex Wash Hd TT Tap Scr 37 738 0934 Shdl Bolt 5 16 18 38 786 0138A Frame R H 39 786 0139A F...

Page 16: ...16 Model 392 3 17 18 21 19 16 42 43 45 46 4 5 7 11 2 1 6 8 9 10 15 14 44 37 40 22 39 41 36 38 33 12 13 30 29 32 31 34 35 28 27 48 47 25 26 24 24 23 20 49 19...

Page 17: ...Pulley Mounting Adapter 27 736 0112 Bell Wash 525 I D x 1 5 O D 28 712 3029 Hex Jam Nut 1 2 20 Thd Gr 5 29 732 0697 Return Spring 30 786 0040B Reverse Bracket 31 736 0119 Lock Washer 5 16 32 710 0237...

Page 18: ...18...

Page 19: ...19...

Page 20: ...such as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d MTD LLC does not ex...

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