19
05
Installation
Manual 2008 Rev A p/n 2008
Hazards Associated With Hazardous
Process Fluids
DANGER
!
It shall be the responsibility
of the installer to ensure that
piping is adequate, sealing
between pipe joints is adequate
for the process fluids and
proper process and pressure
protection devices are in place.
It is also the responsibility
of the installer to assure that
process gasses are not vented
in a manner that would be
hazardous.
Refer to the manufacturer of the
process media to assure that
proper safety precautions are in
place.
Blockage or Restriction
WARNING
!
Damage to the blower could occur if there is
blockage in the inlet or outlet ports or piping.
Care should be taken when installing the
blower to assure that there are no foreign
objects or restrictions in the ports or piping.
MOTOR DRIVES
Two drive connections commonly used are direct
drive and V-belt drive.
Direct Coupled
When installing the motor directly to the blower,
align the shafts to the coupling according to the
coupling manufacturer’s instructions. Blowers
shipped with the motor directly coupled and
mounted on a common base have been aligned
prior to shipment. Further alignment is not normally
necessary, but be sure to check the alignment and
make adjustments if necessary prior to starting the
blower.
Coupling halves must correctly fit the blower and
drive shafts so that only light tapping is required to
install each half. The two shafts must be accurately
aligned. A direct-coupled blower and motor must
be aligned with the two shafts having no more than
0.005 in. (13 mm) Total Indicator Reading (TIR).
Make sure the face is aligned within 0.002 in.
(0.05 mm).
Establish proper gap between coupling halves
according to the coupling manufacturer’s
instructions with the motor armature. Proper
gap will minimize the chance for end thrust
on the blower shaft. Re-align and grease all
direct-coupled base-mounted blowers after field
installation.
V-Belts
If the motor and blower are V-belt connected, the
sheaves on both the motor and blower shafts
should be as close to the shaft bearings as
possible. Blower sheave is not more than 1/4 in.
(6.5 mm) from the blower drive end cover. The
drive sheave is as close to the driver bearing as
possible. Take care when installing sheaves on
the blower and motor shafts. Make sure the face is
accurately in line to minimize belt wear.
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