GMC C Series 1993, Руководство по ремонту

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1D2-8 HR6-HE AIR CONDITIONING COMPRESSOR
Fig. 16; Staking Glutch Coil to Front Head Fig. 17; Details of Stakes in Front Head for Clutch Coil
5, When coil is fully seated on the front head; use a l/8';
diameter drift punch and stake the front head at three
places 120 degrees apart (Fig. 16), to ensure clutch!coiI,
remains in position.
i
* > • Stake size should be only one-half the area of the .
punch
tip and be only approximately
0.28-0.35mm (.010-.015") deep (Fig. 17).
6. Install rotor and bearing assembly and the clutch plate
and hub assembly as described previously.
^ • ! i|l - Fig. 18 Compressor Shaft Seal
MAJOR H R 6 -H E C O M PR ESSO R
REPAIR PRO CEDURES
When replacing the shaft seal, ' assembly (Fig?
j
18)i,
pressure relief valve or control switches (Fig. 19), it will be
necessary to recover the refrigerant. Other than clutch repair
procedures, the same holds true for any disassembly Of the
compressor -
■ ' f : i
A clean workbench covered with a sheet of clean paper1 ,
and a place (fclean trays, etc.) for all parts being removed and
replaced is important, as is the use of proper clean service tools!
NOTICE:
Any attempt .to. , use . makeshift; , br
inadequate service tools or equipment may result in
! damage and/or improper compressor operation. ’i
All parts required for servicing the internal compressor
are protected by a preservative process and packaged in ,a
manner which will eliminate the necessity o f,:cleaning:;
washing or flushing of the parts. The parts can be Used injthe
internal assembly just as they are removed from the servjiHe
package. Seals arid protective packaging should be left
intact until just prior to installation. ■; i ;
If the compressor rear head, front head or cylinder} and
shaft assembly is ito .be serviced or replaced, the oil in the
compressor must be drained, measured, recorded and replaced.
1 j SUCTION PORT
T 1 DISCHARGE PORT
MOUNTING BOSS (3)
[T]CONTROL
SWITCHES
I S | PRESSURE
RELIEF VALVE
520020-1D2-R1
id (i i
Fig. 19 Compressor — Rear Head
COMPRESSOR SHAFT SEAL
REPLACEMENT
n 0 i| i| i ; I ; ' . •; . ' ; '
Seal Leak Detection
A shaft seal should not be changed because of small
amounts bfloil} found on an adjacent surface but only after
actual refjrigefant leakage is found using an approved leak
detector, J 29547 or equivalent.
1- CLUTCH COIL
2 - D R IF T PUNCH
3-S T A K E IN FRONT
HEAD (3 PLACES)
520020 1D2