EOS SERVICE PROCEDURE 12-2810-R02 (10/3/10)
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10
20.
While holding the
Housing (6)
with the
Adjustment Tube (11)
opening facing down, carefully lower onto the
Adjustment Shaft (17)
assembly
(Fig. 33)
.
21.
Install the
Thrust Washer (19)
onto the end of the
Adjustment Shaft (17)
; place the
Packing Nut (20)
large opening
first over the
Adjustment Shaft (17)
and thread counter clockwise onto the
Adjustment Tube (11)
; the thread is left
handed.
22.
Tighten the
Packing Nut (20)
by turning counter clockwise with a 5/8” socket attached to a calibrated torque wrench
and torque to
11‐13 in/lbs
. (
Fig. 34)
.
Fig. 34
Fig. 35
Fig. 36
CAUTION:
Over
tightening
the
Packing
Nut
(20)
may
result
in
the
failure
of
the
fastener
rendering
it
unusable,
requiring
its
replacement.
23.
Install the
Adjustment Knob/Cover (21, 23)
onto the
Adjustment Shaft (17)
. Insert the
Adjustment Knob Screw (22)
and tighten clockwise; attach a 3/32” hex driver to a calibrated torque wrench and torque to
3‐4 in/lbs
.
(Fig. 35)
.
24.
Carefully examine the knife sealing edge of the
Orifice (26)
for nicks or imperfections. Lightly lubricate and install a
new
Orifice O‐ring (25)
onto the groove of the
Orifice (26)
. Insert the
Orifice (26)
into the
Valve Housing (27 or 44)
knife edge first
(Fig. 36)
.
CAUTION: Be careful to protect the knife edge sealing surface of the Orifice (26) during installation.
25.
Using a narrow flat blade screwdriver, engage the slotted head of the
Orifice (26)
and slowly turn in clockwise
into the
Valve Housing (27 or 44)
until the knife edge of the
Orifice (26)
barely makes contact with the
Poppet Seat
(30)
. This will be indicated by the slight drop of the
Demand Lever (28)
; when this occurs depress the
Demand Lever
(28)
and slightly turn the
Orifice (26)
out counter clockwise, bringing the
Demand Lever (28)
upright.
CAUTION:
Continuing
to
turn
the
Orifice
(26)
inward
any
further
may
result
in
damage
to
the
Poppet
Seat
(30),
requiring
its
replacement.
Fig. 37
Fig. 38
Fig. 39
