freightliner Argosy COE Maintenance Manual page 135

Heater and Air Conditioner
2
1
02/26/2002
1. Air Filter Cover
Fig. 4, HVAC Air Intake Plenum, Blend Air
8. Remove the chocks from the tires.
Cab Recirculation Air Filter
Replacement, Water-Valve
Controlled
The cab recirculation air filter must be replaced every
six months, regardless of mileage, to permit proper
operation of the HVAC system.
CAUTION
If the recirculation air filter is not replaced every
six months, damage to the heater and air condi-
tioner components could occur. The HVAC system
should not be operated without the recirculation
air filter installed.
IMPORTANT: When replacing the air filter, use
only a Freightliner-approved air filter.
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the rear tires.
2. Remove the heater and air conditioner cover and
the upper dash cover. For instructions, see Sec-
tion 60.08 of the Century Class Trucks Work-
shop Manual .
3. Remove and discard the foam filter.
4. Using velcro tape, attach a new filter to the
HVAC cover. See Fig.
Century Class Trucks Maintenance Manual, April 2003
f831493
2. Wire Retainer
5.
4
2
3
2
11/14/2000
1. HVAC Cover
2. Velcro Tape
Fig. 5, Cab Recirculation Air Filter, Water-Valve
Controlled
5. Install the upper dash cover and the heater and
air conditioner cover. For instructions, see Sec-
tion 60.08 of the Century Class Trucks Work-
shop Manual .
6. Remove the chocks from the tires.
Cab Recirculation Air Filter
Replacement, Blend Air
The cab recirculation air filter must be replaced every
six months, regardless of mileage, to permit proper
operation of the HVAC system.
CAUTION
If the recirculation air filter is not replaced every
six months, damage to the heater and air condi-
tioner components could occur. The HVAC system
should not be operated without the recirculation
air filter installed.
IMPORTANT: When replacing the air filter, use
only a Freightliner-approved air filter.
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the rear tires.
2. Remove the heater and air conditioner cover and
the upper dash cover. For instructions, see Sec-
1
f831418
3. Seal Cover
4. Recirculation Filter
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