
Calypso First Stage Service Manual
5
9. Remove the main spring (7) from the piston cap (2).
Firmly grasp the shaft of the piston (4) and directly pull
it out of the cap.
10. Remove large piston head o-ring (3). Remove piston
shaft o-ring (5).
11. Insert the extraction tool through the head of the piston
(4) and push out the piston HP seat (6).
This Ends Disassembly.
Before starting reassembly, perform parts
cleaning and lubrication in accordance with
Procedure A : Cleaning and Lubricating, (p. 12).
REASSEMBLY PROCEDURES
1. Place a new, lubricated o-ring (11) onto the crown
orice (12). Load the crown orice onto the installation /
extraction tool at end rst.
2. Insert the crown orice (12) into the inlet side (non-
threaded side) of the body (8). Turn the tool over and
press on the head of the crown orice to conrm that it
is seated all the way in the body.
3. Install a new, lubricated o-ring (5) into its groove on the
piston (4) shaft.
4. Install a new, lubricated o-ring (3) onto the head of the
piston (4).
5. Using your nger, press a new HP (6) seat into the end
of the piston (4) until it is seated all the way and is ush
with the end of the piston. If you are unable to press
the HP seat into the piston all the way with your nger,
as an option, you can place the HP seat on a clean
surface and press the piston shaft over it.
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