6.7L Cummins Compressed Air System – Air Compressor Cylinder Head, Single Cylinder – Disassemble

Air compressor cylinder heads can be rebuilt with new gaskets if air or coolant leaks are detected.
Disassemble the cylinder head by removing the five internal hex capscrews.
Separate the cylinder head.
Remove and discard the old gasket.

Inspect the sealing surface on both the upper and lower sections of the cylinder head for damage.
NOTE: Do not remove the exhaust valve capscrews.