4-1
4. Machine Controls
and Instrumentation
Chapter Overview
This chapter contains an overview of the machine
controls and instrumentation. It includes an illustra-
tion of the following controls and instrumentation
components and a description of their functions.
• Machine controls
• Dash panel
• Gauge/warning light panel
Machine Controls
There are three primary machine controls: loader &
drive control (1&2) and throttle (3).
Loader Control (RC-50)
The loader control (1) allows the operator to raise,
lower and pivot the attachment using a simple, pilot-
operated joystick.
Figure 4-1 4-001
Loader Control (R-50)
The loader and bucket are controlled by the side-
ways motion of the controls (1&2). The right joystick
operates the bucket and the left joystick operates
the loader boom.
Drive Control (RC-50)
The drive control (2) allows the operator to change
directions and speed using a simple, pilot-operated
joystick.
Drive Control (R-50)
The forward and reverse motion of each track is con-
trolled by the forward and back motion of the con-
trols (1&2). The right joystick operates the right
track and the left joystick operates the left track.
Throttle
The throttle controls engine rpm.
Dash Panel
The dash panel (Figure 4-2) is positioned for easy
visibility in the “heads up” position inside the opera-
tor’s enclosure. The dash panel includes the follow-
ing components.
(1) Interior light
(2) Slope indicator
(3) Switch panel
(4) Ignition switch
(5) Gauge/warning light panel
Figure 4-2 4-002
1 2 5 4 3
1
3
2
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