Machine Controls And Instrumentation; Chapter Overview; Machine Controls; Loader Control - Terex PT-30 Service Manual

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 your particular machine. Included here are illustra-
tions of the following controls and instrumentation com-
ponents 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) Fuel Gauge
(2) Tachometer (optional)
(3) Engine Coolant Temp. Gauge (optional)
(4) Hour Meter
(5) Warning Indicator Display
• Engine Oil Pressure Warning Light
• Engine Temperature Warning Light
• Hydraulic Oil Temperature Warning Light
• Battery Voltage Warning Light
4-2
If the engine temperature, engine oil pressure or hydraulic oil
temperature lights illuminate or should the eng. coolant temp.
gauge read excessive temperatures during normal machine
operation, shut the machine down immediately (in a safe
location). Diagnose the problem and make any necessary
repairs before resuming 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
5 4
1
NOTICE
NOTICE