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9
CONTROLLING SPEED AND TILLING
DEPTH
WHEEL YOKE ADJUSTMENT:
1. 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.
2. Turn yoke around (farthest point between wheels
and tines) for deep tilling. Forward speed will
decrease. (See Figure 11.)
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.
1. By increasing the depth of the depth stake, the
forward speed of the machine is reduced, and the
working depth is increased. (See Figure 12.)
2. When the depth stake is raised, the working depth
of the machine is reduced and the forward speed
is increased.
• Remove the clevis pin and hairpin clip to raise or
lower depth stake. (See Figure 9.)
Figure 11
IMPORTANT: 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 12.
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 as
shown in Figure 13. In some soils, the desired depth is
obtained the first time over the garden. In other 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 which are
turned up should be removed from the garden area.
Figure 12
Figure 13
Handle Pressure:
Further control of tilling depth and travel speed can be
obtained by variation of pressure on the handles.
1. A downward pressure on the handles will reduce
the working depth and increase the forward speed.
2. An upward pressure on the handles will increase
the working depth and reduce the forward speed.
NOTE: The type of soil and working conditions will
determine the actual setting of the depth stake and the
handle pressure required.
Throttle Control: The throttle control lever adjusts the
engine speed and stops the engine. With the throttle
control lever pushed completely forward, the carburetor
is in START position. Pulling the throttle control back
slightly adjusts the engine speed to FAST. Pulling the
throttle back further reduces the engine speed to
SLOW. Pull the throttle completely back to stop the
engine.
Use maximum engine speed for deep tilling. Move the
throttle control to SLOW when transporting the tiller.
Deep
Shallow
Tilling
Tilling
Transport
Position
Depth
Stake
Deep Tilling
Slow Forward
Shallow Tilling
Fast Forward
Raised Wheel Setting
For Deep Tilling