Operation and maintenance manual

Section 260-0130
Operators Compartment - Air Conditioning
SM 1405 Rev 2 11-04
6
16. Slacken nuts (26) and lockwasher (27) on adjuster
rod (24) to release tension on 'V' belt (18).
17. Slacken locknut (33) on bolt (34). 'V' belt (18)
should now be free to slide off of groove in
compressor (12).
18. Slacken nut (26) on bolt (28). Remove locknut (33)
and spacer and slide adjuster block (25) clear of
compressor (12). Remove bolt (28), lockwasher (27),
nut (26) and adjuster rod assembly (24) from
mounting bracket (19).
19. Support compressor (12) and remove bolt (34),
washer (23) and locknut (33) securing compressor
(12) to bracket (19). Remove compressor (12) from
the vehicle.
Note: If 'V' belt (18) does not require replacement do
not remove from engine fan pulley. If 'V' belt (18)
requires replacement, proceed with steps 20 and 21.
20. If required, remove mounting hardware securing
fan guard assembly to radiator shroud assembly.
Refer to SECTION 210-0040, RADIATOR AND
MOUNTING.
21. Release tension on Poly 'V' fan belt and remove
from fan pulley. Remove compressor 'V' belt (18) from
the rear groove of the fan pulley. Refer to Section
110-0030, ENGINE AND MOUNTING.
22. If required, remove bolts (35 & 37), locknuts (33),
washers (36) and bracket (19) from engine timing case.
23. If required, disconnect all clamps and clips
securing refrigerant hoses and harnesses to the
vehicle. Remove hoses and harnesses from the
vehicle.
24. If necessary to gain access to blower unit (44, Fig. 3),
disconnect harnesses (38 & 39, Fig. 3) and air ducting
tubes from air conditioning unit (located in the right hand
side of the cab). Remove bolts (40, Fig. 3), lockwashers
(41, Fig. 3), washers (42, Fig. 3) and slide cover
(43, Fig. 3) from air conditioning unit.
INSTALLATION
Numbers in parentheses refer to Fig. 2, unless
otherwise stated.
Note: Tighten all fasteners to standard torques
specified in Section 300-0080, STANDARD BOLT
AND NUT TORQUE SPECIFICATIONS.
WARNING
To prevent personal injury and property
damage, be sure wheel blocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
1. If removed, slide air conditioner cover (43, Fig. 3)
into position inside the cab and connect harnesses
(38 & 39, Fig. 3) and air ducting tubes. Secure cover
(43, Fig. 3) with bolts (40, Fig. 3) and lockwashers
(41, Fig. 3).
2. If removed, position air conditioner (1) outer box
assembly over aperture on right hand side of cab.
Secure outer box assembly with bolts (40, Fig. 3),
lockwashers (41, Fig. 3) and washers (42, Fig. 3).
3. Connect harness (4, Fig. 3) and attach control cable
(47, Fig. 3) to water valve (48, Fig. 3).
4. Position front cover and filter assemblies on air
conditioner (1) outer box and secure using bolts
(45, Fig. 3) and lockwashers (46, Fig. 3).
5. Remove caps from end of refrigerant hoses (5 & 6)
and ports on air conditioner (1) and connect hoses to
ports as tagged at removal.
6. Route refrigerant hoses (5 & 6) behind the engine
and along the LH side of the engine securing with
clamps removed during removal.
7. If removed, install receiver/drier (16) to mounting
bracket (17) and secure with nuts as removed at
removal. Secure assembly to engine block with bolts
(13) and lockwashers (14).
8. Remove caps from end of refrigerant hoses (5 & 9)
and ports on receiver/drier (16) and connect hoses to
ports as tagged at removal.
9. If removed, install condenser unit (11) to radiator
assembly and secure with bolts (13), washers (15) and
lockwashers (14).
10. Remove caps and connect refridgerant hoses
(7, 8, 9 & 10) to radiator cowl and condenser unit (11)
ports as tagged at removal.
11. If removed, install mounting bracket (19) to engine
timing case and secure using bolts (35 & 37), washers
(36) and locknuts (33) as shown in Fig. 2.