SPX Cooling Technologies MHF702 Refrigerator User Manual


  Open as PDF
of 36
 
11
Mechanical Equipment:
The fluid cooler is designed to operate at full speed and half speed.
Warranty is void if the tower is operated at speeds which cause
damagingvibrationstothetowerandassociatedequipment.When
utilizingavariablefrequencydrive,thetowermustbetestedacross
thefullrangeofspeedsandcheckedagainstCTIguidelinesforex-
cessive vibration. Speed ranges not meeting these guidelines must
belockedoutintheVFD.
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. On double-flow models—MHF706 and MHF707—install fan cylinder
and two-piece fan guard according to the installation drawing shipped
with the fluid cooler.
Improper installation of the fan cylinder and fan guard will destroy the
structural integrity of the fan guard. Failure of the fan guard could allow
operating or maintenance personnel to fall into the rotating fan.
3. Spin the fan(s) manually to assure that all fan blades properly clear
the inside of the fan cylinder. If equipped, 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 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 Belt Tensioning and Sheave Alignment on pages 22 thru 24.
Warning
➠
Warning
Warning
Installation
 previous next