4-4. COMPRESSOR VALVES AND CYLINDER HEAD - Continued.
(1) Clean all build up of oil or debris from all parts.
DO NOT breathe cleaning solvent vapors for long periods of time or use solvent
near open flames. To avoid illness, explosion, or fire, only use solvent in well
ventilated areas away from open flames.
(2) Clean all metal parts with a clean, soft cloth (item 3, Appendix E) or medium bristle brush (item 4, Appendix
(3) Allow all parts to dry.
(1) Inspect springs on auto unloader mechanisms for breaks. Replace broken springs.
(2) Check o-rings for cuts, cracks, or splits. Replace o-ring if damaged in any way.
(3) Examine all packings for cuts, cracks, or tears. Replace packings if damaged in any way.
(4) Inspect cylinder head and intercooler body for cracked surfaces or broken fins. Replace part if surface is
cracked or fins are broken.
(5) Check valve plates and valve springs for cracks or wear. Replace any part that is cracked or worn.
(6) Examine upper and lower valve seats for cracked surfaces or worn valve seats. Replace seat if material is
cracked or if valve seats are worn.
(7) Check all hardware and threaded parts for chipped or stripped threads. Replace any part having thread
(8) Inspect valve plates, valve spring plates, and cylinder head for carbon build up. Remove any carbon build up
Repair of compressor valves and cylinder head is limited to replacement of defective parts.