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10.

Start the engine according to the instructions found 
in this manual and keep feet well away from the 
tines at all times.

11.

After striking a foreign object, stop the engine, 
disconnect the spark plug wire and ground against 
the engine. Thoroughly inspect the machine for any 
damage. Repair the damage before starting and 
operating. 

12.

Disengage all clutch levers and stop engine before 
you leave the operating position (behind the 
handles). Wait until the tines come to a complete 
stop before unclogging the tines, making any 
adjustments, or inspections.

13.

Never run an engine indoors or in a poorly 
ventilated area. Engine exhaust contains carbon 
monoxide, an odorless and deadly gas. 

14.

Muffler and engine become hot and can cause a 
burn. Do not touch.

15.

Use caution when tilling near fences, buildings and 
underground utilities. Rotating tines can cause 
property damage or personal injury.

16.

Do not overload machine capacity by attempting to 
till soil to deep at to fast of a rate. 

17.

If the machine should start making an unusual noise 
or vibration, stop the engine, disconnect the spark 
plug wire and ground it against the engine. Inspect 
thoroughly for damage. Repair any damage before 
starting and operating.

18.

Keep all shields, guards and safety devices in place 
and operating properly.

19.

Never pick up or carry machine while the engine is 
running.

20.

Use only attachments and accessories approved by 
the manufacturer. Failure to do so, can result in 
personal injury.

21.

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.

Maintenance & Storage

1.

Never tamper with safety devices. Check their 
proper operation regularly.

2.

Check bolts and screws for proper tightness at 
frequent intervals to keep the machine in safe 
working condition. Also, visually inspect machine for 
any damage. 

3.

Before cleaning, repairing, or inspecting, stop the 
engine and make certain the tines and all moving 
parts have stopped. Disconnect the spark plug wire 
and ground it against the engine to prevent 
unintended starting.

4.

Do not change the engine governor settings or over-
speed the engine. The governor controls the 
maximum safe operating speed of the engine.

5.

Maintain or replace safety and instruction labels, as 
necessary.

6.

Follow this manual for safe loading, unloading, 
transporting, and storage of this machine.

7.

Never store the machine or fuel container inside 
where there is an open flame, spark or pilot light 
such as a water heater, furnace, clothes dryer etc.

8.

Always refer to the operator’s manual for proper 
instructions on off-season storage.

9.

If the fuel tank has to be drained, do this outdoors.

10.

Observe proper disposal laws and regulations for 
gas, oil, etc. to protect the environment.

Your Responsibility 

1.

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.

2.

The safety label on the tiller is reproduced below for 
your review. To ensure safe operation of the tiller, 
follow the instructions on all labels closely.

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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