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VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391STG
Section 7 • Warranty and Parts
Remanufactured Gas Bare Shaft
Compressor Process
These instructions are an overview of how the process
works when a bare shaft compressor is in need of being
remanufactured. This is to help clear any questions that
may arise prior to contacting customer service.
The process begins by contacting Vilter’s Customer
Service Department. Vilter contact information can be
found on page ii.
• Request a “VSG Single Screw Compressor Rebuild
Form”.
• Submit the Rebuild Form and a Purchase Order
(PO) for the inspection. A fee is required for the ini-
tial inspection and teardown report; contact Vilter
Customer Service representative for the latest fee.
• A Return Material Authorization (RMA) number will
be provided.
• Send the compressor to Vilter in the condition as
stated on the Rebuild Form (i.e. no oil in the compres-
sor). Charges may apply if conditions are not met.
• A report will be sent to you after the inspection has
been completed explaining what level of rebuild is
necessary along with the cost.
NOTE
Inspection and rebuild times will vary, contact Vilter
Customer Service representative for further details.
• Submit a new PO for the amount that will be needed
for the rebuild. The inspection cost will be waived
upon receipt of the new PO. Make sure to provide
your “Ship to Address” and “Billing Address”.
EXPLANATION OF REBUILD LEVELS
Level 1
Compressor is in good condition. Replace bearings, gas-
kets, shaft seal and o-rings. All hardware is intended to
be re-used (when possible). Parts are organized in part
kit form.
Level 2
Compressor is in good condition, but requires new gate
rotor blades. Replace all items in Level 1 plus new gate
rotor blades and bushings.
Level 3 - Current Reman Compressor requires complete
rebuilding and re-conditioning to “as-new” condition.
All the components listed in Level 2 are replaced plus all
hardware, slide assemblies, pistons, and a main rotor (if
damaged) and/or gate rotor supports.
NOTE
A Level 1 and Level 2 rebuild will include washing
the housing and repainting over the current paint.
A Level 3 rebuild will include blasting all the current
paint off before repainting.
BARE SHAFT COMPRESSOR DESCRIPTION
Single Screw Bare Shaft Compressor features include:
• Cast grey iron frame with cast ductile iron discharge
manifold and gate rotor covers with discharge con-
nection horizontal.
• Standard drive shaft is tapered.
• Standard slide assembly.
• Viton shaft seal O-rings.
• Crating with Purge & Gauge.
• Does not include handwheels or slide valve motors.
