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Key Switch, Model 22971
The key switch has three positions: off, run, and start.
To start the engine, rotate the key to the start position.
Release the key when engine starts and it will move
automatically to the run position.
To stop the engine, rotate the key to the off position.
Throttle Lever
Move the control forward to increase the engine speed
and rearward to decrease speed.
Choke Lever
Before starting a cold engine, move the choke lever
forward. After the engine starts, regulate the choke to
keep the engine running smoothly. As soon as possible,
move the choke lever all the way rearward.
Note: A warm engine requires little or no choking.
Hour Meter
When the engine is off, the hour meter displays the
number of hours of operation that have been logged
on the machine.
Note: The hour meter is an optional accessory on
model 22970.
Reference Bar
When driving the machine, use the reference bar as a
handle and a leverage point for controlling the traction
control and the trencher control lever. To ensure
smooth, controlled operation, do not take both hands
off of the reference bar while operating the machine.
Traction Control
1. Reference bar (does not move to give you a reference point
and a fixed handle to hold while operating the traction unit)
2. Traction control (moves to control the machine)
Figure 6
• To move forward, move the traction control forward
(Figure 7).
• To move rearward, move the traction control
rearward (Figure 8). When reversing, look behind
for obstructions and keep your hands on the
reference bar (Figure 6).
• To turn right, rotate the traction control clockwise
(Figure 9).
• To turn left, rotate the traction control
counterclockwise (Figure 10).
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Figure 7
Figure 8
G008131
Figure 9
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