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Chapter Overview
This chapter contains an overview of the machine con-
trols and instrumentation. For further information
regarding machine controls, instrumentation or opera-
tion, refer to the operation and maintenance manual
for the PT-100 Forestry machines. Included here are
illustrations of the following controls and instrumenta-
tion components and a description of their functions.
•
Machine Controls
•
Instrument Location and Function
•
Switch Location and Function
Machine Controls
There are three primary machine controls: loader con-
trol (1), drive control (2) and throttle (3).
Loader Control
The loader control (1) is a pilot operated joystick that
allows the operator to raise or lower the loader and
dump or curl the quick attach mechanism.
Drive Control
The drive control (2) is also a pilot operated joystick. It
allows the operator to change the direction and speed
of the machine.
Throttle
The hand throttle (3) controls engine rpm.
1
3
4-1
(fig. 4-1)
2
4. Machine Controls and
Instrumentation
The Instruments (Figure 4-2) are positioned in the
overhead dash panel for ease of access and visibility
when seated inside the operator enclosure.
Instruments include the following components.
(1) Hour Meter
(2) Tachometer
(3) Engine Coolant Temp. Gauge
(4) Fuel Level Gauge
(5) Warning Indicator Display
• Engine Oil Pressure Warning Light
• Engine Temperature Warning Light
• Hydraulic Oil Temperature Warning Light
• Battery Voltage Warning Light
2
1
4-2
Should the engine temperature gauge read excessive tem-
peratures or should the oil pressure or hydraulic oil tempera-
ture lights illuminate during normal machine operation, shut
the machine down immediately (in a safe location). Diagnose
the problem and make any necessary repairs before resum-
ing normal operation.
If the battery low-voltage light should illuminate during opera-
tion, drive the machine to a suitable location and shut the
engine off. Diagnose the problem and make any needed
repairs before resuming operation.
The glow plug operation light illuminates only when the
key switch is turned to engine pre-heat, showing nor-
mal operation.
4-1
Instrumentation
3
4
5
NOTICE
NOTICE
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