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Section 3 • Installation
Compressor Unit Inspections Prior To
Installation
The compressor unit must be inspected prior to instal-
lation since components could have come loose and/or
damaged during shipment or moving.
• Check for loose bolts, particularly the compressor
and motor mounting nuts.
• Check for bent or damaged components. The com-
pressor unit should have also been inspected prior to
off-loading, see Delivery Inspection.
• Check that the nitrogen pressure is still holding pres-
sure. The pressure gauge is located at the discharge
bleed valve on the block and bleed assembly. Any
leaks must be fixed and the system purged and re-
charged with dry nitrogen.
• Look into the suction and discharge connections and
inspect for any signs of corrosion on parts.
• Prelube the compressor with the main oil pump and
rotate by hand several revolutions prior to start.
• Notify Vilter™ Service and Warranty Department
when the compressor is started.
For Pre Start-Up and Start-Up checklists, please
contact Vilter Service and Warranty Department.
CAUTION
Before installation, follow the proper procedures to
depressurize the compressor.
3 – 2
NOTE
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
Recommended On-site Tools
The tools recommended to have on site are important
for troubleshooting, inspections and compressor unit
operation. Besides general mechanic tools, these tools
are recommended:
• Oil Pump (maximum of 2-3 GPM with motor ap-
proved for Division 1 or Division 2 and with ability to
overcome suction pressure) (VPN A40849A)
• Infrared Heat Gun
• Torque Wrenches (with ranges from 0 to 600 ft-lbs)
• Sockets and wrenches up to 2-1/2" (63.5 mm)
• Voltmeter
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Table of Contents
Troubleshooting
