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8
F
Note: If you are working on a Conshelf 14 Supreme
300 Bar DIN first stage, perform the resassembly
instructions in Appendix A on page 13. For the Yoke
version, perform steps 15-18 below.
15.
Next, completely thread the yoke (Item 6) clockwise
onto the inlet boss of the first-stage body; then secure
by installing the yoke retaining ring (Item 5) flat side fac-
ing upwards on the inlet boss using external snap-ring
pliers.
16.
Lightly lubricate the threads of the yoke screw (Item 2).
Reinstall the yoke screw (Item 2) by turning it clockwise
into the yoke (Item 6).
17.
Install O-ring (Item 4), unlubricated, into the dust cap
(Item 3) to complete the dust-cap assembly.
18.
Wrap the nylon cord, tied to the dust cap, around one
leg of the yoke and pass the cap through the loop
formed, creating a "loose" knot.
This concludes the reassembly of the Conshelf
First-Stage Regulator. Testing of the First-Stage
Regulator will follow reassembly of the second-
stage regulator.
SECOND STAGE REASSEMBLY
19.
Insert the new disc (Item 13) into the bore provided for it
on the retainer (Item 28).
20.
Position the spring (15) over the stem of the retainer
(Item 14).
21.
Fit the disc and retainer with its spring onto the special
disc and retainer wrench (P/N 110005), and carefully
insert into the second-stage box bottom (Item 16).
22.
Push inward on the wrench and hold momentarily so
that the threaded stem of the retainer protrudes into the
interior of the box bottom.
23.
Immediately place the
washer (Item 19), ra-
diused end up, spacer
(Item 21), and a new
locknut (Item 22) onto
the retainer. Turn
the locknut clockwise
until first threads are
engaged.
24.
Still pushing inward on
the wrench, compress-
ing the spring, insert
the lever (Item 20)
between the spacer
and the washer (See
Figure 8). Remove
the disc and retainer
wrench and assure
that the lever is proper-
ly aligned in its groove
on the box bottom.
Figure 8
25a.
2nd stage without port plug:
While holding the locknut with the ¹⁄₄-inch box end
wrench, reinsert the disc and retainer wrench over the
end of the retainer (Item 28). Do not compress the
spring. Turn the disc and retainer wrench clockwise until
about three threads of the retainer are visible beyond
the head of the locknut. Remove the disc and retainer
wrench and ¹⁄₄-inch wrench from the box bottom.
25b.
2nd stage with port plug:
Insert a ¹⁄₄" nutdriver through the open port and hold the
locknut. Insert the disc and retainer wrench over the end
of the retainer (Item 28). Do not compress the spring.
While holding the retainer firmly, turn the ¹⁄₄" nutdriver
clockwise until about three threads of the retainer are
visible beyond the head of the locknut. Remove the disc
and retainer wrench and nutfriver from the box bottom.
26.
Next, lightly lubricate the O-ring (Item 12) and place it
on the inlet fitting (Item 11). To avoid marring the surface
of the disc seat (Item 27), depress the lever and screw
the inlet fitting (Item 11) clockwise into the inlet boss of
the box bottom using a ³⁄₄-inch torque wrench, tighten
the inlet fitting to a torque of 55 ± 5 inch-pounds.
27.
At this point, the top of the lever (Item 20) should be ap-
proximately flush with the top surface of the box bottom
(Item 16). Lay a straight edge or "sight" across the top
surface of the box bottom to confirm correct lever height.
If the tip of the lever is below the top surface of the box
bottom, or if there is excessive "free play" or "flop" in the
lever, use the following procedure:
a. 2nd stage without port plug:
Hold the retainer (Item 14) stem with a small, bent-
shank screwdriver and turn the locknut (Item 22) clock-
wise with a ¹⁄₄-inch open-end wrench. Adjust only far
enough to correct the lever height or eliminate excessive
"free-play". (See Figure 9)
Figure 9
Conshelf XIV Service Manual
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