BAC RC Series, Руководство по эксплуатации и техническому обслуживанию

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W W W . B A L T I M O R E A I R C O I L . C O M . A U
M A R 2 1 0 - 2
Fan Drive System (Belt Drive Units)
Belt Drive Power Train
The drive train consists of SPB belts, a fan sheave and a motor sheave.
The high efficiency belts provide the premium quality necessary for
evaporative cooling equipment.
Together these components provide a highly reliable system with
low maintenance requirements. The drive train should be inspected
periodically to check the belt tension, condition of the sheaves and
belt, and when necessary adjust the tension. The recommended service
intervals are specified elsewhere.
Inspection & Maintenance
The belt drive power train requires a periodic check of belt condition
and, when necessary, tension adjustment. The recommended service
intervals are as follows:
•
Initial Start-Up:
– If the equipment was supplied in assembled major sections,
no servicing is required prior to initial startup since the drive
has been tensioned and aligned at the factory. If equipment
was supplied completely knocked down (CKD) then check drive
alignment & belt tensioning as per procedures outlined below.
• Seasonal Start-Up: Readjust the tension on the belt.
•
Operation:
After the first 24 hours of operation, readjust the
belt tension on a new unit start-up or installation of a new belt.
Thereafter, check the belt condition monthly, and adjust tension as
necessary. Readjust tension at least once every three months.
Figure 3a. Belt Tension with a Straight Edge Figure 3b. Belt Tension with a Tape Measure
WARNING: No service work should
be performed on the drive train
without first ensuring the fan
and pump motors have been
isolated, tagged and locked in
the off position.
6mm to 9mm
6mm to 9mm