PREVOST X3-45 COMMUTER, Руководство по обслуживанию

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SECTION 22: HEATING AND AIR CONDITIONING
26 DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version – Rev.2 April 2016)
CAUTION
When unplugging the unloader, use
exceptional caution so as not to rotate the blue
unloader solenoid coil on the Bitzer
compressor R.H. cylinder. The aluminum cap
on top of the coil may become loose; it can
result in failure of the unloader stem/valve
(FIGURE 30).
Make sure the aluminum cap on top of the
blue unloader coil remains tight.
Should the idler bearing need to be serviced,
tighten shoulder bolt (C) to
35 lbf-ft. at
reassembly.
FIGURE 24: COMPRESSOR BELT TENSIONER
FIGURE 25: STANDARD BELT ARRANGEMENT
Belt tensions should be within the following
values:
BX71 Double Belt
90 - 100 lbs. – new
75 - 85 lbs. – used
7.1.3 Suction and Discharge Hose
Connection
1. Before connecting suction and discharge
refrigerant hoses to the compressor, apply
POE compressor oil on new gaskets,
do not
dip in oil
.
2. Tighten flanged hose by hand in 2
sequences.
3. Apply a final torque of 33 lbf-ft on cap
screws.
FIGURE 26: TORQUES
FIGURE 27: PRESSURE TRANSDUCERS