Emerson VSG & VSSG Specifications download pdf (Page 20)

with the hole in the disc pack, slide one long bolt

through washer or link, disc pack, center ring, disc

pack, washer or link, and then secure with a lock-

nut. The long bolt requires a minimum clearance

“R” for installation between back side of coupling

ange and stationary equipment. See Figure 1

and Table l for value of “R.” On size 226 and larger

a link must be put on the bolt rst. Now install the

rest of the long bolts in the same manner.

5. Torque the long bolt locknuts at this time.

NOTE: With the coupling in good alignment, the bolts

will t through the holes in the anges and the disc

pack more easily. It is recommended that all locknuts

be retightened after several hours of initial operation.

E. For further help with the installation or alignment,

consult Rexnord.

F. Disc Pack Replacement.

If it becomes necessary to replace the disc pack, it can

be done as follows:

1. Remove all the long bolts and lower the center

ring by sliding it our from between the two disc

packs.

2. Remove one short bolt from the disc pack/hub

connection and reinstall it through a hub clearance

hole and into the hole in the disc pack. Put the nut

on. This will keep the discs together and maintains

the disc orientation for later reinstallation. Remove

the rest of the short bolts and takeoff the disc pack.

Repeat for the second disc pack.

3. Replace the pack(s) if required. Recheck align-

ment per Section D. Reassemble per Section E.

Installation

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Emerson VSG & VSSG Specifications Page 20