OPERATOR’S STATION
Form 169552 / 169554 / 169555
27
Revision A
5.10.4 A/C COMPRESSOR PROTECTION
The compressor is protected from excessively
low and high pressures by two switches that
shut down the compressor to prevent damage to
the system.
•
The LOW pressure switch opens when the
pressure falls to 5.1 - 10.9 psi (35 - 75 kPa),
and shuts down the compressor.
When the pressure rises to 17.6 - 26.4 psi
(121 - 182 kPa), the switch closes, and
allows the compressor to run.
•
The HIGH pressure switch opens and stops
the compressor when the pressure rises to
315 - 335 psi (2172 - 2310 kPa).
When the pressure falls to 220 - 280 psi
(1517 - 1930 kPa), the switch closes and
allows the compressor to run.
If the air conditioning system is shut down by
either switch, locate the source of the problem,
and correct it before operating the system.
5.11 INTERIOR LIGHTS
Two interior lights are installed in the cab
headliner. A low intensity LED light (A) is
located directly overhead to provide ambient
lighting if desired, and functions only when the
ROAD/FIELD light switch is ON. An ON-OFF
switch is located on the light.
The other interior light (B) is located on the
headliner switch panel, and the push-ON,
push-OFF button is located on the light.
5.12 OPERATOR AMENITIES
B
MANUAL STORAGE CASE
CIGARETTE
LIGHTER
AUXILIARY
POWER
DATA LINK
RECEPTACLE
LIVE / SWITCHABLE
/ GROUND - 20 A.
ASHTRAY /
CUPHOLDERS
UTILITY
TRAY
A