3
operation and service
INITIAL PROTECTION AGAINST CORROSION
As shipped, a Marley Geareducer is protected internally against
corrosion with machine enamel on unmachined parts and with
rust-proofing oil and grease on machined surfaces. These coatings
normally protect the Geareducer against atmospheric corrosion for
storage periods up to six months. However, if oil is added to the
Geareducer, it will dissolve the rust-proofing grease and oil, requiring
the Geareducer to be operated once a week to keep a protective
coating of oil on all interior machined surfaces.
Check Geareducer exterior. If exterior finish has been damaged dur-
ing shipment or installation, touch up with epoxy paint as required. If
Geareducer is equipped with a remote dipstick/oil level gauge and/or
drain line, coat any exposed threads at pipe joints to prevent corrosion.
INITIAL OPERATION
The Geareducer must be filled with oil to the full oil level mark on
the Geareducer case before it is placed in operation. See
Changing
Geareducer Oil
section for oil filling instructions.
Geareducers supplied with new towers include oil for the initial fill-
ing. Oil is not furnished with Geareducers supplied as spares or on
replacement orders. Before operating the mechanical equipment,
check to be sure the oil level is at the full mark at the Geareducer
and that the external gauge placard (if equipped) full mark corre-
sponds with the “Full” level in the Geareducer. Check any oil lines
to be sure there are no leaks.
Be certain that the vent on the Geareducer (and external dipstick/
oil level gauge, if present) is not plugged.
In order to assure long service life, the Geareducer and motor must
be level, and the drive shaft or coupling must be properly aligned.
Refer to the alignment instructions in the Driveshaft or Coupling
Manual shipped with the cooling tower. Copies are also available
from your local Marley sales representative.
Note
—If the tower is equipped with a two-speed motor, allow a time
delay of at least 20 seconds when switching from high speed to
low speed. Allow a time delay of at least two minutes when chang-
ing direction of fan rotation. Failure to provide these delays may
significantly reduce equipment service life.
Figure 1 – Service Fittings
➠
VENT
VENT
DRAIN
PLUG
OIL LEVEL
CHECK AND FILL
