11
Mechanical Equipment:
Always shut off electrical power to the tower fan motor prior to
performing any maintenance on the tower. Any electrical switches
should be locked out and tagged out to prevent others from turning
the power back on.
1. If equipped, check oil level in accordance with the
Geareducer User Manual
for the Geareducer. (Although the Geareducer was filled to the proper
level at the factory, tipping during shipment and hoisting may have caused
some loss of oil.) If oil is required, fill Geareducer to the proper level with
approved lubricant. (See
Geareducer User Manual
) Check oil level at the
Geareducer or dipstick (standpipe located on fan deck, if so equipped) to
confirm that the proper level is indicated.
2. Install fan guard according to the installation drawing shipped with the
tower. NC8401 through NC8403 models include a single-piece fan guard.
NC8405 through NC8414 models include a two-piece fan guard. Models
with extended velocity-recovery cylinders do not have fan guards.
Improper installation of the fan guard will destroy the structural
integrity of the fan guard. Failure of the fan guard could allow op-
erating or maintenance personnel to fall into the rotating fan.
3. Spin the fan manually to assure that all fan blades properly clear the inside of
the fan cylinder. Observe the action of the coupling (or drive shaft couplings)
to be sure that the motor and Geareducer are properly aligned. If necessary,
correct the alignment in accordance with the included manual.
For Power Belt Drive equipped models observe the action of the sheaves
and belts to be sure that the motor is properly aligned with the fan sheave.
See the Belt Tensioning and Sheave Alignment section of this manual.
It is essential that the fan guard be installed in accordance with the
Field Installation Manual shipped with the tower.
Warning
installation
Warning
Caution