Internal Mechanism Removal

1. Remove clutch plate and hub, pulley and bearing, clutch coil and housing, and shaft seal as outlined previously.
2. Invert compressor and holding fixture with front end of compressor shaft down. Additional oil may leak from compressor at this time. All oil must be drained into a clean container so that total amount can be measured with a liquid measuring cup. Drained oil should then be discarded.
3. Remove rear head of compressor.

Fig. 22 Rear head Teflon gasket surfaces:

4. Wipe excess oil from Teflon gasket surfaces, Fig. 22. Examine gasket surfaces and replace head should any damage be present.
5. Remove suction screen.
6. Paint an identifying mark on exposed face of inner and outer oil pump gears and remove gears.
7. Remove and discard rear head to shell O-ring.

Fig. 23 Removing rear discharge valve plate:

8. Remove rear discharge valve, Fig. 23. Use two screwdrivers as shown; do not position screwdrivers between reeds and reed seats.

Fig. 24 Removing rear suction reed:

9. Remove rear suction reed, Fig. 24. Do not pry up on horseshoe-shaped reed valves.

Fig. 25 Removing rear pickup tube:

10. Remove oil pickup tube, Fig. 25. Remove O-ring from oil inlet.
11. Remove compressor from holding fixture and place in support block on bench.

Fig. 26 Numbering of pistons & cylinder bores:

12. Lift front head and compressor shell assembly up, leaving internal mechanism resting on support block, Fig. 26. Do not tap on end of compressor shaft to remove internal mechanism. If mechanism will not slide out of compressor shell, tap on front head with a plastic hammer.
13. Rest compressor shell on its side and push front head assembly through shell, being careful not to damage Teflon sealing areas on inner side of front head. Discard O-ring. It may be necessary to tap on outside of front head, using a plastic hammer, to overcome friction of O-ring seal between front head and compressor shell.
14. Clean and examine Teflon gasket surface on front head casting webs. If any damage is observed on gasket surface, gasket should be replaced.
15. Remove front discharge valve assembly and front suction reed plate.
16. Remove suction cross-over cover by prying with screwdriver between cylinder casting and cover. Examine internal mechanism for any obvious damage. If there is major damage due to loss of refrigerant or oil, it may be necessary to use service internal mechanism assembly rather than replace individual parts.