13
CONTROLS
Choke
(Fig. 8) To start a cold engine, close
carburetor choke by pulling choke control outward to
the ON position. After engine starts, regulate choke to
keep engine running smoothly. As soon as possible,
open the choke by pushing it inward to the OFF
position. A warm engine requires little or no choking.
Figure 8
1
1. Choke
2. Throttle
3. Gear shift lever
2
3
Throttle
(Fig. 8) Throttle is used to operate engine at
various speeds. Moving throttle upward increases
engine speed FAST; rearward decreases engine
speed SLOW. The throttle controls the speed of the
coring head and, in conjunction with traction clutch,
controls ground speed of the machine.
Gear Shift Lever
(Fig. 8) Transmission has two
forward speeds, neutral and reverse, and has an inline
shaft pattern. Do not shift while unit is moving, as
transmission damage may occur.
Ignition Switch
(Fig.9) The ignition switch, which is
used to start and stop the engine, has three positions:
OFF, ON and START. Rotate key clockwise START
position to engage starter motor. Release key when
engine starts. The key will automatically return to the
ON position. To shut engine off, rotate key
counterclockwise to the OFF position.
Traction Drive Lever
(Fig. 9) Shift to desired gear
and move traction drive lever to engage position to
move forward or reverse. One of the hand operated
interlock levers (Fig.10) must be engaged to shift
traction drive lever. Also, parking brake is automatically
engaged or disengaged with traction drive lever and
interlock lever operation .
Coring Head Lever
(Fig. 9) Raises and lowers
coring head and engages and disengages drive.
Figure 9
3
1. Traction drive lever
2. Coring head lever
3. Ignition switch
2
1
Interlock Lever Switches (2)
(Fig. 10) Switches
permit engine operation when coring head is lowered.
They also hold the traction drive lever in engaged
position. One handle switch must be activated before
engaging traction drive or lowering the coring head,
when engine is running.
1. Interlock lever switches
2. Service brake
Figure 10
1
1
2
Service Brake
(Fig. 10) Used to slow down traction
operation.
