Louisville CD-1261 Manual Download

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Installation, Operation & Maintenance Manual

IM-995

Fan Installation – Factory Assembled Units

(refer to lifting/safety section)

All fan wheels are statically and dynamically balanced using state of the art equipment in the factory. Final trim balancing is
performed on factory assembled fans, unless the specified electrical characteristics of the motor are outside the limits of the
factory test equipment. If the motor and drives are supplied, the complete assembly is run tested and balanced. Infrequently,
fans are supplied with unusual electrical characteristics and cannot be tested with the motor. In this situation the fans are run
and balanced using a factory driver. Likewise, if motors and/or drives are not supplied, the fan is tested with the factory driver.
Final balancing, at the buyer’s expense, should be performed in the field after the motor and/or drives are installed. This service
is available from TCF, otherwise this should be entrusted to a qualified technician.

Follow proper handling instructions as given earlier.
1.

Move the fan to the final mounting position.

2. Remove skid, crates and packing materials carefully.
3. If vibration isolation is to be used, place isolation base on

mounting bolts. Line up holes in fan base with bolts. See
Item 10 in the "Optional Accessories" section for preparing
inertia bases for use.

4. Place the fan on mounting structure. Carefully level the

unit  (checking  the  level  on  the  shaft)  on  the  foundation
and shim as necessary using stainless steel shims on both
sides  of  each  anchor  bolt.  Back  off  leveling  nuts  if  used.
Be careful not to force the fan to the mounting structure/
foundation.  This  may  cause  the  bearings  to  become
misaligned  or  pinched  causing  vibration  and  premature
failure.

5. Check the alignment of the bearings. Shim or reposition

the bearings if necessary.

6. Check alignment of sheaves on belt driven fans.
7. Check tension of belts to see if it is sufficient. Sheaves

on  belt  driven  fans  are  often  provided  with  taperlock
bushings.  When  tightening  bushing  bolts,  proceed  in  a
progressive manner to avoid cocking the tapered surfaces
between  the  bushing  and  the  sheave.  Torque  per  tables
on the right.

8. Check alignment of factory mounted couplings, as

they are subject to misalignment during shipment and
installation. Realign to within 0.002" offset and parallel.
Allow for thermal growth of the motor by setting the
motor 0.001" low for each inch of shaft up to 0.005".

9. Check the tightness of the wheel on the shaft. Check

the tightness of foundation bolts, motor bolts, sheaves
and bearings. Make sure there is no rubbing or binding
and that the wheel-inlet cone clearances and overlap are
correct.

10. Check that bearings are fully lubricated and check the

oil level in the static oil lube systems. For spherical roller
bearings with split pillowblock housings, the bottom half
of the housings should be 1/3 full of grease. For oil lube
bearings, the oil level should reach the midpoint of the
bottom roller or ball.

11. Install any accessories shipped loose from the factory.

The above torque values are for nonlubricated fasteners and Browning
Bushings. For bearing setscrews, use manufacturer’s recommendations.
If other bushings are used, utilize bushing manufacturer's specifications.

Louisville CD-1261, Manual

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