3
operation and service instructions
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
during shipment or installation, touch up with epoxy paint as re-
quired. 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
Chang-
ing Geareducer Oil
section for oil filling instructions.
Geareducers supplied with new towers include oil for the initial
filling. 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 corresponds 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
changing 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
