Chevrolet 10 series 1973, Руководство по капитальному ремонту

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1 -1 0 AIR C O N D IT IO N IN G C O M PRESSO R
Fig. 1 8 -U n se a tin g Discharge Crossover Tube
4. Carefully remove the rear half of the cylinder from
the pistons and set the front cylinder half, with the
piston, shaft and wobble plate, in Compressing
Fixture J-9397.
5. Push up on the shaft and, one assembly at a time,
remove pistons, rings, seats and balls placing all
parts in Tray J-9402 in the compartment associated
with the proper end of the piston. Discard all piston
ball seats.
NOTE: The front of the piston may be
identified by a notch in the casting web (fig.
20). The piston compartments in Tray J-9402
have a boss at this notch location to indicate
the front.
6. Remove and inspect all piston rings. Replace all
broken or damaged rings. Damaged pistons must
also be replaced.
7. Examine piston balls. Replace if they show burning
or excessive wear.
8. Remove the rear combination of thrust races and
bearing from the shaft and discard all three pieces.
9. Remove the shaft and wobble plate assembly from
the front half of the cylinder.
10. Remove the front combination of thrust washers
and bearing and discard all three pieces.
11. Examine all surfaces of the wobble plate and, if
satisfactory, reuse. If it shows signs of wear, replace
the shaft and wobble plate as an assembly. Use care
Fig. 1 9 -S e pa ra tin g C ylin d e r Halves
not to move wobble plate on the shaft. This is
factory set.
12. Examine the front and rear cylinder halves and
replace if cylinder bores are deeply scored or
damaged.
13. Wash all parts to be reused in a suitable cleaner.
Blow dry all parts.
14. If cylinder main bearings are to be replaced, they
may be removed and reinstalled at this time using
Tool J-9432. Drive against the lettered end of the
bearings and from the outside of the cylinder.
Bearing must be not more than 1/8" below surface.
Gauging Procedure
The gauging operations which follow have been worked
out on a simple basis to establish and provide necessary
running clearances. Two gauging procedures are
necessary.
The first gauging operation is made to choose the proper
size ball seats to provide, at each piston, a .0005" to
.0010" total preload between the seats and the wobble
plate at the tightest place through the 360 degree
rotation of the wobble plate. The bronze ball seats are
Fig. 2 0 -N o tc h Id e n tify in g Front End of Piston
OVERHAUL MANUAL