Apeks ATX Second Stage User Manual

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Apeks ATX Second Stage Service Manual
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GENERAL CONVENTIONS
Unless otherwise instructed, the following terminology and tech-
niques are assumed:
1. When instructed to remove, unscrew, or loosen a threaded
part, turn the part counterclockwise.
2. When instructed to install, screw in, or tighten a threaded
part, turn the part clockwise.
3. When instructed to remove an O-ring, use the pinch method
(see gure) if possible, or use a brass or plastic O-ring
removal tool. Avoid using hardened steel picks, as they may
damage the o-ring sealing surface. All o-rings that are re-
moved are discarded and replaced with brand new o-rings.
1. Using two ¹¹₁₆” wrenches, hold the retaining nut (11) station-
ary while turn the hose swivel counterclockwise. Remove
the o-ring from inside the hose swivel. Exercise caution not
to scratch the o-ring groove. Remove the o-ring from the
male end of the hose.
2. Pull back the two hose
protectors and inspect
the hose crimps. The
crimps should be free
from damage and the
hose should not be
pulling out of the crimp.
If it is, the hose must be
replaced.
3. Using the Apeks front cover tool (see note on page 13
regarding the modication of the front cover tool), unscrew
the case cover (4). To remove the purge button and spring
(2 & 3), squeeze two adjacent tabs inward.
4. Lift out the diaphragm
cover (5) and diaphragm
(6).
4. The following acronyms are used throughout the manual:
MP is Medium Pressure; HP is High Pressure; IP is Inter-
mediate Pressure.
5. Numbers in parentheses reference the key numbers on the
exploded parts schematics. For example, in the statement,
“...remove the o-ring (20) from the...”, the number 20 is the
key number to the crown o-ring.
DISASSEMBLY PROCEDURES
Note: Before performing any disassembly, refer to the
exploded parts drawing, which references all mandatory
replacement parts. These parts should be replaced with
new, and must not be reused under any circumstances
- regardless of the age of the regulator or how much use it
has received since it was last serviced.
CAUTION: Use only a plastic or brass o-ring
removal tool (p/n 944022) when removing o-rings
to prevent damage to the sealing surface. Even
a small scratch across an o-ring sealing surface
could result in leakage. Once an o-ring sealing
surface has been damaged, the part must be
replaced with new. DO NOT use a dental pick, or
any other steel instrument.
Pinch Method
Press upwardson sides
of O-ring to create a
protrusion. Grab O-
ring or insert O-ring
tool at protrusion.

Apeks ATX Second Stage Specifications

General

Brand	Apeks
Model	ATX Second Stage
Category	Controller
Language	English