Advertisement
5. Insert the shaft of the piston (4) into the spring (7). Press
down on the retainer cap (2) and tighten the cap onto the
first stage body (32) until hand tight. Insert the pins on the
adjustable spanner wrench into the two holes on top of the
retainer cap and tighten until snug.
6. Install o-ring (16) onto the shaft of the fill port pin (37) and
o-ring (35) onto the fill port cap (34). Set the fill port cap to
the side, it will be installed after final testing.
7. Install o-ring (35) onto the fill port (36). Insert the fill port pin
(37), o-ring side first, into the male-threaded end of the fill port.
8. Install the fill port (36) into the lower HP port on the first
stage body (32). Using a 9/16" socket and inch pound torque
wrench, torque the fill port to a value of 90 in-lbs (10.2 Nm).
CAUTION:
To avoid damaging the fill port (36), do
not over torque.
9. Install o-ring (35) onto the pressure gauge (38). Screw the
pressure gauge into the upper HP port on the first stage body
(32) until hand tight. Using a 7/8" crowfoot and inch pound
torque wrench, tighten the pressure gauge to a value of
45 in-lbs (5 Nm).
CAUTION:
Be careful not to damage the fill port
(36) with the crowfoot while torquing the pressure
gauge (38).
10. Install safety plug (11) into the lower port on the first stage
body (32) (the side opposite of the fill port 36). Using a 3/8"
socket and inch pound torque wrench, torque the safety plug
to a value of 90 in-lbs (10.2 Nm).
NOTE: DO NOT apply any type of lubricant to the safety
plug (11). This will result in the over-torquing of the
safety plug.
NOTE: Before continuing, closely examine the back-up
ring (26). You will note that it has a flat side and a concave
side. For correct assembly, the concave side should be
against the o-ring (27), as shown in the picture below.
11. In the following order,
place a new Teflon washer
(29), brass washer (28), o-ring
(27) and back-up ring (26)
onto the stem (30).
9
O-ring
Back-up ring
Advertisement
