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6
15. When the crown (16) has been unthreaded from the
inlet fi tting (19), carefully insert the pin of the seat extraction
tool into the opposite end of the inlet fi tting and through the
center of the crown. Gently press the crown out onto a
padded surface.
16. Closely examine the crown (16) with the use of a
magnifi er to check for any scoring, nicks or other damage to
the polished sealing surface. If damage is found, discard the
crown, and do not attempt to reuse. If it is in reusable
condition, set it aside on a soft surface to prevent damage to
the sealing edge.
17. Remove the o-rings from the crown and the inlet fi tting.
THIS ENDS DISASSEMBLY
Before starting reassembly, perform parts
cleaning and lubrication in accordance with
Procedure A: Cleaning and Lubricating (p. 14).
Procedure A: Cleaning and Lubricating (p. 14).
Procedure A: Cleaning and Lubricating
REASSEMBLY PROCEDURE
NOTE:
Before performing any reassembly, it
is important to inspect all parts, both new and
those that are being re-used, to ensure that
every part and component is perfectly clean
and free of any dust, corrosion, or blemishes.
Check all o-rings to ensure they are clean and
supple before dressing with Christo-Lube
MCG 111.
1. If you removed the exhaust valve (3) during disassembly
install the exhaust valve into the exhalation box (2) by feeding
the stem through the hole in the box (from the inside) and pull
gently on the stem using needle nose pliers until the barb has
passed through and is securely seated against the opposite
side of the box.
If you are installing a new valve, carefully snip off the
excess material of the stem with a small pair of scissors,
leaving 5mm.
2. Install the o-ring (17) onto the crown (16) and o-ring (18)
onto the inlet fi tting (19).
3. Carefully insert the threaded end of the crown into the
hose connection of the inlet fi tting. Gently press it in further
with the blunt end of the seat extraction tool until it stops.
®
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