Indicators and Gauges
engine revolutions per minute (rpm)
in hundreds. The normal
operating (GREEN) range is 1200
Gauge - The gauge should
to 2200 rpm.
register in the green range
Converter and Retarder
Temperature Gauge - Indicates
2. Air System Pressure Gauge
the torque converter and retarder
- Indicates the air pressure in the
oil temperature. The gauge
reservoirs. The gauge should
should be in the GREEN range during
register in the GREEN range during
Service Meter - Indicates the
total service hours on the
engine. Use it to determine service
4. Engine Oil Pressure
The gauge should register in the
WHITE range at low idle engine
speed, or in the GREEN range
at operating speed.
Low Air System Pressure Light
(Red) - When it lights, it indicates
that air pressure in the
reservoirs is low. Below 415 kPa
(60 psi) the light should go on and the
condition of the battery charging
electric warning horn should sound.
circuit. The gauge should read
ZERO soon after the engine starts.