Section 22: HEATING AND AIR CONDITIONING
PA1562
20
order to release pressure and tension on
belts.
2. Remove the radiator fan driving mechanism
belt (Refer to Section 05: Cooling).
3. Slip the old A/C compressor belts off and
the new ones on.
4. Reset belt tensioner pressure releasing
valve (Fig. 18) to 50 psi (345 kPa) to apply
tension on the new belts as explained in
Section 12.
NOTE
Both belts must always be replaced
simultaneously to ensure an equal distribution
of load on each of them.
FIGURE 18: AIR PRESSURE REGULATOR 12200
FIGURE 19: BELTS ARRANGEMENT (DDC S60 ENGINE)
22348
FIGURE 20: BELTS ARRANGEMENT (VOLVO D13
ENGINE)
FIGURE 21: IDLER PULLEY INSTALLATION ON VOLVO
D13 ENGINE
7.1.2 Belt Play
After belt replacement or during normal
maintenance, belt play between pulleys and belt
must be checked to ensure proper operation.
Refer to figure 22 for proper plays.
FIGURE 22: BELT PLAY 22288
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