TM 5-2420-230-24-2
A/C Cylinder Head (QE Models) (012-104)
B3.9 and B5.9 Series Engines
Page 12-38
Section 12 - Compressed Air System - Group 12
Remove the compressor intake manifold and gasket.
Loosen, but do not remove, the center head capscrew.
Mark the head for orientation during assembly.
Loosen and remove the four corner head capscrews. Save
the capscrews for reuse.
Remove the head, cover, and valve plate assembly and
place it on a clean work surface with the intake valve facing
upward.
NOTE: If continuing with disassembly of the head, valve
plate, and cover, be sure the work surface is clean. Grit
pushed into the valve sealing surfaces by setting compo-
nents on a dirty surface will cause a malfunction after
assembly.
L-1242