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-50 & 60 machines. Included here are illus-
trations of the following controls and instrumentation
components and a description of their functions.
•
Machine Controls
•
Instrument Location and Function
•
Switch Location and Function
Machine Controls
(fig. 4-1)
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 foot throttle (3) controls engine rpm.
Note:
The PT 50/60 machines are also equipped with
a foot throttle mechanism. To use, simply press the
pedal until the desired RPM is reached. To hold that
RPM, pivot the hand lever forward until it contacts the
pedal, then release. Pull back on hand lever to
decrease RPM.
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)
Fuel Level Gauge
(2)
Warning Indicator Display
• Engine Oil Pressure Warning Light
• Engine Temperature Warning Light
• Hydraulic Oil Temperature Warning Light
• Battery Voltage Warning Light
(3)
Hour Meter
(4)
Tachometer (optional PT-50)
(5)
Engine Temperature Gauge (optional PT-50)
NOTICE
Should the optional engine temperature gauge read exces-
sive temperatures (
or
warning light illuminate) or should the
oil pressure or hydraulic oil temperature lights illuminate dur-
ing normal machine operation, shut the machine down imme-
diately. Diagnose the problem and make any necessary
repairs before resuming normal operation.
NOTICE
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. Machine Controls and
Instrumentation
4-1
2
3
1
2
4-1
4-2
1
3
4
5
