SPX Cooling Technologies MH Fluid Cooler User Manual page 38

maintenance
to expel all air out of the unit. Finally, re-tighten the inlet nozzle blind flange
bolts and let nitrogen pressure build up to 48 kPa inside the tube-bundle.
Disconnect the nitrogen line and plug the isolation valve to avoid any pressure
drop in case of valve leak.
Machinery Components:
Electric motors: All drive motors should be taken down and stored indoors.
Then, every month, turn motor shafts to evenly distribute lubricant to the
bearing parts.
Recirculation pumps: All pumps and pump motors should be taken down
and stored indoors (pumps and motors may be stored fully assembled).
Then, every month, turn pump impeller shaft to evenly distribute lubricant to
the bearing parts.
Belts: Properly stored belts will retain their properties unchanged for several
years. Under unfavorable storage conditions and with improper handling, dete-
rioration of their physical properties will result. These changes can be caused,
for example, oxidation, ozone, extreme temperatures, light, damp or solvents.
It should be ensured that belts are stored stress free, which is to say without
tension, pressure or other causes of deformation, as strain causes permanent
deformation and failure due to fatigue, as well as cracking. If, for reasons of
space, they are stored suspended, the diameter of the bar from which they
are suspended must be equal to at least 10 times the height of the belt.
The belts may not be stored for longer than 3 month in an open,
Caution
uncontrolled environment.
Storage Area: The storage area must be dry and dust-free. Belts may not
be kept together with chemicals, solvents, fuels, lubricants, acids, etc.
Temperature: Belts should be shielded from Radiators and their pipes. The
distance between radiators and stored equipment must be at least 10 feet.
Light: Belts should be protected from light, particularly from direct sunlight
and strong artificial light with high ultraviolet content (formation of ozone),
such as for example fluorescent tubes installed in open fixtures. Ideally, room
lighting should be normal incandescent bulbs.
Ozone: To counteract the damaging effect of ozone, the storage areas may
not contain any form of ozone generating equipment, such as for example
fluorescent light sources, mercury vapor lamps or electrical high voltage
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