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17. Using a 9/16" socket and flex wrench, unscrew the fill port
(36) from the first stage body (32). Remove the fill port pin
(37) from the fill port.
NOTE: Take care not to lose the fill port pin (37) when
removing the fill port (36). It is possible that the fill port
pin may have remained in the fill port during removal.
18. Remove the o-ring (35) from the fill port (36) and o-ring
(16) from the fill port pin (37).
19. Using your fingers, peel
the retainer cover (1) off the
retainer cap (2).
20. Insert the pins on the
adjustable spanner wrench
into the two holes on top of
the retainer cap (2). Unscrew
the retainer cap from the first
stage body (32).
21. Separate the piston (4) from the retainer cap (2). Remove
the spring (7) from the first stage body (32).
22. Remove o-rings (3 & 5) from the piston (4). Insert the
seat extraction tool into the open end of the piston and push
out the HP seat (6).
23. Secure the strap wrench
to the cylinder (39). Using
a 1 3/16" crowfoot and flex
wrench, unscrew the first
stage body (32) from the
cylinder. Remove o-ring (33)
from the first stage body.
CAUTION:
Ensure that the crowfoot is aligned with
the wrench flats on the first stage body (32). Do not
position the crowfoot over the bonnet opening as
this will cause damage, resulting in replacement of
the first stage body.
NOTE: Before beginning reassembly,
perform parts cleaning and lubrication in
accordance with Procedure A: Cleaning
and Lubricating.
7
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