operators_manual

Heater
CAUTION
During extreme cold weather, do not blow
hot defroster air onto cold windshields. This
could crack the glass. Turn the Air Flow
Control Dial to Defrost and adjust the fan
speed accordingly while the engine warms.
If the engine is already warm, move the
Temperature Control Dial to cool, then grad-
ually increase the temperature when you
see that the windshield is starting to warm
up. Failure to comply may result in equip-
ment damage.
• Check all heater controls for full-
range operation.
• Check hoses, connections, and
heater core for condition and leaks.
Air Conditioner
WARNING!
The air conditioning system is under pres-
sure. If not handled properly during servic-
ing, it could explode. Any servicing that re-
quires depressurizing and recharging the air
conditioning system must be conducted by a
qualified technician with the right facilities to
do the job. Failure to comply may result in
death, personal injury, equipment or proper-
ty damage.
WARNING!
Wear eye protection any time you blow
compressed air. Small particles blown by
compressed air could injure your eyes.
• Listen to the compressor and drive
clutch for noise and vibration. If you
find problems, have the system
checked thoroughly. A
malfunctioning clutch usually
indicates trouble elsewhere in the
system.
• Check the evaporator core, filter,
and condenser core for debris
restricting air flow. Clean if
necessary. Small particles may be
removed with compressed air blown
through the core in the opposite
direction of normal air flow.
• Check the engine belt for condition
and proper tension.
• Check all hoses for kinks,
deterioration, chafing, and leaks.
Adjust kinked or chafing hoses to
eliminate restrictions and prevent
further wear.
• Check all components and
connections for refrigerant leaks. If
you discover a leak, do not try to
tighten a connection. Tightening a
connection may cause a leak to
worsen. Have a qualified technician
correct the problem.
NOTE
A leaking evaporator or condenser core
cannot be repaired; it must be replaced.
Have the air conditioning system fully
serviced annually by your authorized
dealer. Qualified service technicians will
have to evacuate and recharge the system.
How to Replace Air Conditioner
Filter
How to replace air conditioner filter for left
hand steer, dual seat dual steer, and right
hand steer cab configurations.
This procedure is for left hand steer, dual
seat dual steer, and right hand steer cab
configurations. The fresh air filter for the
cab HVAC is located in front of the
passenger footwell. The filter is accessible
from inside the cabin via two Phillips head
MAINTENANCE - Heater and Air Conditioner Maintenance
Y53-6096-1A1 (01/17) 197
5