Emerson VSG & VSSG Specifications download pdf (Page 33)

Drive End

GATE ROTOR ASSEMBLY CAUTION

Gate rotor removal and assembly is divided into dis-

tinct instructions, instructions for all VSG and VSSG

models and different instructions for all VSM models.

Please follow the appropriate set of instructions.

REMOVAL ( All VSG)

A) Prepare the compressor for servicing.

NOTE: All parts must be kept with their appro-

priate side and not mixed when the compres-

sor is reassembled.

B) Remove two upper bolts from the side cover,

and install guide studs in the holes. Remove the

remaining bolts and side cover. There will be

some oil drainage when the cover is removed.

C) Turn the main rotor so a driving edge of any one

of the main rotor grooves is even with the back

of the gate rotor support.

D) Insert the gate rotor stabilizer. The side rails

are not required on VSSG 291 thru 601. For the

VSG 751 thru 901 and VSG 1051 thru 1201

compressors, use the side rails and assemble to

the gate rotor stabilizer as stamped. For the VSG

1551 thru 2101, use the side rails and assemble

to the gate rotor stabilizer.

The gate rotor stabilizer is designed to hold the

gate rotor support in place and prevent damage

to the gate rotor blade as the thrust bearings and

housing is being removed.

90 1C

90 1B

90 1A

For VSG 451 thru 601

compressors, do not

use side rails.

For VSSG 751/901 & VSG 1051/1201

compressors, use side rails and

assemble to gaterotor stablizer

as stamped.

Service

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Emerson VSG & VSSG Specifications Page 33