5-22. ACCUMULATOR-MAINTENANCE INSTRUCTIONS (Continued).
d. Install the ring compressor on the piston and rings
and place the entire assembly on the open end of the
shell. Lubricate the inner surface of the ring
compressor and the beginning inner region of the
shell with engine oil to reduce friction between
the piston .and the shell.
e. Carefully drive the piston, crown side first, into
the shell with a hammer and block of wood, tapping
gently to slowly move the seal ring and back-up
rings across the chamfered edge of the shell.
Install the nitrogen end cap (11).
g. Pressurize accumulator-Refer to Step 1.