EOS SERVICE PROCEDURE 12-2810-R02 (10/3/10)
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6
NOTE:
It
is
not
necessary
to
remove
the
Demand
Lever
(28)
unless
it
is
damaged.
The
Valve
Housing
(27
or
44)
may
be
cleaned
with
the
Demand
Lever
(28)
attached.
21.
Remove the
Valve Housing O‐ring (29)
by squeezing it with your fingers. Examine the
O‐ring (29)
for damage; discard
if found.
22.
If the
Poppet (31)
did not come out with the removal of the
Adjustment Tube (11)
, push the poppet out through the
Valve Housing (27 or 44)
with cotton swab
(Fig. 12)
.
Fig. 10
Fig. 11
Fig. 12
23.
Remove the
Poppet Seat (30)
with your fingers and discard (schedule A);
DO NOT REUSE (Fig. 13)
.
24.
Remove the
Poppet O‐rings (32, 33)
by squeezing them with your fingers and working them over the end of the
Poppet (31)
(Fig. 14)
.
DO NOT
use a dental pick or any tool to remove them. Discard the
O‐rings (32, 33)
(schedule A)
and
DO NOT REUSE.
25.
Using a narrow flat blade screwdriver, carefully remove the
Orifice (26)
by turning it counter clockwise in the
Valve
Housing (27 or 44)
until the threads disengage. Once the threads are fully disengaged, press out the
Orifice (26)
with
a cotton swab.
(Fig. 15)
Remove the
Orifice O‐ring (25)
and discard (schedule A);
DO NOT REUSE
.
Fig. 13
Fig. 14
Fig.15
NOTE:
When
removing
the
Orifice
(26),
be
careful
not
to
damage
or
nick
the
knife
edge
sealing
surface;
doing
so
will
result
in
a
leak
upon
reassembly
requiring
its
replacement.
Examine
the
knife
edge
with
a
magnified
light
source
for
any
nicks
or
dents;
discard
if
any
found.
26.
Remove the
Exhaust Cover (10)
by grasping the upper corner and pulling downward
(Fig. 16)
.
27.
Examine the overall condition of the
Housing (6)
and
Exhaust Cover (10)
to insure there are no stress fractures or
deformation. Insure that all threading on the
Housing (6)
is in good condition and free from sand or debris. Discard
either if any damage is found.
28.
Examine the
Exhaust Valve (9)
with a soft probe to insure that it is resilient and no holes or tears are present; discard
if any found. Inspect the sealing surface under the
Exhaust Valve (9)
on the
Housing (6)
to insure there is no debris or
damage.
