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Crosby SerieS BP OMNi-TriM
InstallatIon, maIntenance and adjustment InstructIons
7.2 assembly
1. Prior to assembly the following surfaces are
to be coated with pure nickel "Never-Seez":
(see figure 1)
- Base to cylinder threads
- Spring washer bevels
- adjusting bolt threads
- Cap threads
- Cap to cylinder sealing surfaces
2. Prior to assembly the guide surface of
the guide is to be lightly coated with
Dow Corning 3451 grease.
3. all O-rings except the piston O-ring
and Tfe O-rings are to be coated with
Dow Corning 3451.
4. The piston O-ring is to be coated with
Dow Corning 3451.
5. Place the spring and washers onto the spindle.
6. Place the spindle/washer/spring assembly
into the cylinder. With the spindle protruding
through the top of the cylinder while
inverting the cylinder, place the inverted
cylinder into a vise.
7. Coat the entire guide O-ring with Dow
Corning 3451 and install on the guide.
8. Coat the entire seat O-ring (except Tfe seat)
with Dow Corning 3451. insert the O-ring
into the groove in the disc holder. Push the
disc insert into the disc holder. installing
the disc insert with a Tfe O-ring or a high
durometer elastomer may require a small
press.
9. Coat the entire piston O-ring with a small
amount of Dow Corning 3451 and install
onto the disc holder.
10. install the disc holder into the guide.
11. install the guide/disc holder assembly into
the cylinder.
12. Coat the cylinder O-ring with Dow Corning
3451 and install into the cylinder.
13. Screw the base into the cylinder until tight
(locked).
14. Screw the adjusting bolt nut onto the
adjusting bolt and install into the cylinder.
15. Screw the cap onto the cylinder with a
suitable wrench until tight.
PreSSure relief valveS
®
8 assEMbly oF CaPs and liFtinG lEVEr
dEViCEs
type a (screwed cap)
apply pure nickel Never-Seez or equivalent to
the cap sealing surface and screw the cap onto
the top of the cylinder. Tighten the cap with a
suitable wrench.
type b (screwed cap with test rod)
apply pure nickel Never-Seez to the cap sealing
surface and screw the cap onto the top of
the cylinder. Tighten the cap with a suitable
wrench. install the cap plug O-ring and screw
the cap plug into the cap. The test rod is
installed only during system hydrostatic testing.
never install the test rod unless performing
system hydrostatic testing.
type d (packed lifting lever)
1. apply loctite 242 or equivalent to the
spindle threads. Screw the spindle nut onto
the spindle. Screw the cap hand tight.
2. apply Dow Corning 3451 or equivalent to the
cam O-ring and install onto the cam. insert
the cam into the sleeve. install the lever
onto the cam and secure with the lever pin.
3. Screw the lever assembly into the cap. if the
cam interferes with spindle nut, remove the
spindle assembly and raise the spindle nut.
repeat until the spindle nut is approximately
" above the cam.
/
1
16
4. Once the spindle nut is in position, remove
the cap and screw the locknut on the
spindle and, while securing the spindle
nut firmly with locking pliers, tighten the
locknut.
5. apply pure nickel Never-Seez or equivalent
to the cap threads and to the cap sealing
surface. Screw the cap onto the top of the
cylinder. Tighten the cap with a suitable
wrench.
6. apply Dow Corning 3451 or equivalent to the
cam sleeve O-ring and install the O-ring.
install the lever assembly.
type E (packed lifting lever with test rod)
assembly of the Type e lifting lever is identical
to the Type D with the addition of the cap
plug O-ring and the cap plug. The test rod is
installed only during system hydrostatic testing.
never install the test rod unless performing
system hydrostatic testing.
4
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