![background image](http://html1.mh-extra.com/html/apeks/xl4-second-stage/xl4-second-stage_technical-maintenance-manual_2952341005.webp)
5
To remove the clamp ring
(1), place your thumb on
the top of the clamp ring as
shown on the first image be
-
low. Grip the rest of the clamp
ring and turn counter-clockwise.
Separate the purge clamp
ring (1) from the purge but-
ton assembly and the case (7).
DISASSEMBLY PROCEDURE
1
Remove the hose by using a
13/16”wrench to hold the in-
let shroud (12) stationary, while
turning the hose swivel counter-
clockwise with a 11/16” wrench.
3
Place one finger into each
side of the exhaust tee (26)
and squeeze them together. Pull
the exhaust tee away from the
case (7).
4
Unfasten the mouthpiece clip (8) and pull the mouthpiece off
the case (7).
2
Follow all guidelines from the Hose Inspection & Cleaning
Technical Maintenance Manual.
NOTE:
Failure to hold the clamp ring as outlined in section 5 may
result in the cover being more difficult to remove due to pressure
being applied to the locking mechanism.
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 product or
how much use it has received since it was last serviced.
CAUTION:
Use only a plastic or brass o-ring removal tool
when removing o-rings to prevent damage to the sealing sur-
face. 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.
6
Using the locking ring tool
(RG911161), align the three
kidney shaped pegs of the
tool into the slots of the inner
locking ring (4). Loosen the inner
locking ring counter-clockwise
and remove it from the case (7).
Remove the friction ring (5) and
the diaphragm (6) from inside of
the case.
Align tool to
locking ring
TECHNICAL MAINTENANCE MANUAL
HOSE INSPECTION
& CLEANING
5
XL4 SECOND STAGE TECHNICAL MAINTENANCE MANUAL