Troubleshooting guide

11
CAUTION: Before proceeding, visually inspect the
cylinder according to Compressed Gas Association
(CGA) standards (pamphlet CGA C-6.1--1984, "STAN-
DARDS FOR VISUAL INSPECTION OF HIGH PRES-
SURE ALUMINUM COMPRESSED GAS CYLINDERS".
This inspection requires a visual inspection light.
If the cylinder does not pass the visual inspection,
it must be serviced or replaced with a new cylinder
before it can be assembled and lled.
37
5. Lightly lubricate the rst stage body threads. Pass the pis-
ton shaft through the spring. While pressing down on the cap,
handtighten the cap onto the rst stage by turning clockwise.
Tighten the cap with an adjustable spanner wrench until the
cap stops against the rst stage body.
8. Attach a 9/16" socket adapter to a torque wrench and tighten
the ll adapter port (23) to 90±3 in/lbs. Do not overtighten -
damage to the ll port adapter will result.
6. Install a new lubricated o-ring (25) onto the shaft of the
check valve (26). Install a new lubricated o-ring (22) onto the
ll port plug (21).
4. Place the spring (35) into the body. Press the piston into
the cap (30) so that the piston head is seated at against the
cap. Verify there is no dirt or damage to the smooth inner sides
of the cap.
7. Insert the check valve (26), o-ring side rst, into the male-
threaded end of the ll adapter port (23). Install a new lubricated
o-ring (22) onto the ll adapter port. Lubricate the threads,
then thread the ll adapter port into the lower of the two high
pressure ports.
REASSEMBLY PROCEDURE
*Lubricate all O-rings with Christo-Lube
®
before assembly.
1. Install a new, lightly lubricated o-ring (37) over the cylinder
threads so that it is seated against the rst stage body. Lubricate
the rst 4 to 5 threads on the rst stage body with Christo-
Lube
®
. Do not use an excessive amount.
First Stage Reassembly
2a. Thread the rst stage into the cylinder until handtight. At-
tach a 1 3/16" crowfoot adapter to a torque wrench. Apply a
strap wrench to the cylinder. While holding the cylinder rmly,
tighten the rst stage body to a torque value of 25 ± 2 ft/lbs.
3. Install a new lubricated piston shaft o-ring (33) and piston
head lubricated o-ring (31) onto the piston (32). Closely inspect
the edges of new HP seat (34). One edge is sharp and one edge
has a chamfer. With the chamfered edge facing outward, press
the HP seat into the small, recessed hole in the end of the pis-
ton. The easiest method is to place the chamfered edge down
on a at surface and simply press the piston down over it.
32
33
34
35
30
29
23
26
2. Place the cylinder in the Bottle Vice or Vice Insert. Attach
a 1 3/16" crow foot adapter to a torque wrench. Tighten the
regulator body to 25 ± 2 ft/lbs OR: