background image

8

Disconnect spark plug wire from spark plug and 
ground against the engine.

Using Your Tiller

Your tiller is a precision built machine designed for seed 
bed preparation, cultivating, furrowing, and mulching. It 
is engineered to minimize the hardest work in the 
vegetable or flower garden, to till the soil for planning 
and cultivating, and to perform many other useful labor 
saving tasks in the garden. 

Wheel Position

Figure 6

The tiller is shipped with the wheels adjusted such that 
the unit sits level. While tilling, as the tines enter the 
ground and the front of the tiller lowers, the wheels 
must be raised to level the unit, which is essential for 
proper engine operation. This adjustment is made by 
removing the clevis pin and hairpin clip from wheel 
yoke, raising the wheels to the desired height, and 
replacing the clevis pin and hairpin clip. See Figure 6.

Removing End Caps

Figure 7

The end caps are used to avoid tilled soil from 
overflowing onto unwanted areas. They are removable 
from the outer axle by removing the hairpin clip and 
clevis pin that secures each end cap. Slide end cap off 
the axle. See Figure 7.

Controlling Speed And Tilling Depth

Wheel Yoke Adjustment 

Figure 8

Place wheel yoke so that the wheels are forward 
(nearest point between wheels and tines) for shallow 
tilling, cultivating, and transport. The forward speed will 
increase. Turn yoke around (farthest point from the 
tines) for 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 
operate. Remove the clevis pin and hairpin clip to raise 
or lower depth stake. Refer to Figure 6.
By increasing the depth of the depth stake, the forward 
speed of the machine is reduced, and the working 
depth is increased. When the depth stake is raised, the 
working depth of the machine is reduced and the 
forward speed is increased. The working depth of the 
machine may be predetermined by setting the depth 
stake and wheels so that the wheels are about four 
inches from the ground when the tines and depth stake 
are resting on the ground. This setting will permit a 
working depth of about four inches. When presetting 
the working depth, the handles should be adjusted so 
the hand grips are a little above waist height because 
the tiller will be lower when the tines and depth stake 
penetrate the ground. See Figure 9.
When tilling, leave approximately 8 inches of untilled 
soil between the first and second tilling paths, then 
make the third path between the first and second. In 
some soils, the desired depth is obtained by going over 
the garden two or three times. In the latter case, the 
depth stake should be lowered before each succeeding 
pass over the garden. Passes should be made across 
the length and width of the garden alternately. Rocks 

Hairpin Clips
& Clevis Pins

Wheel Yoke

Depth Stake

Hairpin Clip

End Cap

Clevis Pin

Position Wheel Yoke
For Shallow Tilling

Position Wheel Yoke
For Deep Tilling

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...

Reviews: