Tuthill 3200, Operator'S Manual

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10
03
Installation
Operator’s Manual 2010 Rev B p/n 2010
Insufficient tensioning is often indicated by slipping
(squealing) at start-up. Do not use belt dressing
on V-belts. Keep sheaves and V-belts free of oil
and grease. Removed tension from belts if the
drive is to be inactive for an extended period of
time. For more specific information, consult the
drive manufacturer. In a V-belt drive, the blower
sheave must fit its shaft accurately, run true, and
be mounted as close to the bearing housing as
possible to minimize bearing loads. See Figure
3-4 .
Figure 3-4 – Setting of proper tension for a V-belt drive
A tight or driving fit will force the drive shaft out of
its normal position and cause internal damage. A
loose fit will result in shaft damage or breaking.
Make sure the motor sheave fits correctly and is
properly aligned with the blower sheave.
Adjust the motor position on its sliding base
so that belt tension is in accordance with the
drive manufacturer’s instructions. Always avoid
excessive belt tension. Recheck tension after
the first 10 hours of operation and periodically
thereafter to avoid slippage and loss of blower
speed.
Check the blower after installation and before
applying power by rotating the drive shaft by hand.
If the drive shaft does not rotate freely:
• Look for uneven mounting, piping strain,
excessive belt tension, or coupling
misalignment.
• Check the blower to make sure oil was added to
the reservoirs.
ELECTRICAL CONNECTIONS
Wire the motor and other electrical devices, such
as solenoid valves and temperature switch, to the
proper voltage and amperage as indicated on the
nameplate of each component being wired. Turn
the blower by hand after wiring is completed to
determine that there are no obstructions, and that
the blower turns freely. Then, momentarily start
the blower to check the direction of rotation. The
airflow direction can be reversed by reversing the
appropriate motor leads.
RELIEF VALVES
Tuthill recommends the use of relief valves to
protect against excessive pressure or vacuum
conditions. Test these valves at initial start-up to
be sure they are properly adjusted to relieve at or
below the maximum pressure differential rating of
the blower.
CAUTION !
Upon completion of the installation, and
before applying power, rotate the drive
shaft by hand. It must move freely. If it
does not, look for uneven mounting, piping
strain, excessive belt tension, coupling
misalignment or any other cause for binding.
If blower is removed and still does not rotate
freely, check inside the blower housing for
foreign material.
PIPING
• Ensure that inlet and outlet connections on all
blowers are large enough to handle maximum
volume with minimum friction loss. Inlet and
outlet connections on all blowers are large
enough to handle maximum volume with
minimum friction loss.
• Maintain same-diameter piping.
• Do not support silencers by the blower.
• Avoid stress loads and bending moments.