2
operation and maintenance
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 run once a week to keep
a protective coating of oil on all interior machined surfaces. See
“Seasonal Shutdown” section for information about nonop-
erating period maintenance.
Check Geareducer exterior yearly. Touch up with paint as required.
Exposed pipe threads are coated to prevent corrosion. Touch up
coating as required.
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 Service
and Lubrication 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 full mark cor-
responds with the “Full” level in the Geareducer. Check oil lines
to be sure there are no leaks.
Geareducer vent or vent line must be open to prevent failure of
pinion shaft oil seal—clean when necessary. Check all gasketed
joints for oil seepage. Tighten cap screws and flange bolting if
necessary.
The Geareducer must be installed level and properly aligned
with drive shaft and motor shaft. Refer to the Driveshaft User
Manual.
Seasonal Shutdown
one week to three months
At start of shutdown period, operate Geareducer until oil is
warm—120°F (50°C)—and change the oil. See section on Service
and Lubrication.
Each month drain any water condensation from the lowest point
of the Geareducer and its oil system. Check the oil level and add
oil if necessary. Operate the Geareducer long enough to recoat
all the interior surfaces with oil.
To put back into operation, drain water condensation and
check oil level. Add oil if necessary.
For longer periods of shutdown, see Marley Manual 92-1308
“Downtime Instruction Manual”.
Inspection Of Internal Parts
Remove the inspection cover plate from the side of the Geare-
ducer case at each oil change. Check inside of Geareducer for
cleanliness of case and internal parts. If any sludge is present,
flush inside of Geareducer and connecting oil line.
Service and Lubrication
The horizontal part of the oil line must be level or slightly lower
at the oil level gauge than at the Geareducer. The oil capacity of
the Geareducer is 181⁄2 gallons. The oil level gauge line requires
approximately one gallon of additional oil. Refer to Table 1 on
page 5 for list of suggested lubricants.
Fill the Geareducer and oil line system with oil, using one of the
following procedures:
Recommended procedure:
1. Install oil at the opening at the Geareducer inspection cover
until it reaches the level of the “Full” mark on the Geareducer
case and at the oil level gauge. See Figures 1 and 2. Install
plug.
2. Start the fan drive and run for one minute.
3. Stop the fan drive. Allow ten minutes for oil level to stabilize
and recheck oil level at the Geareducer.
4. If necessary, repeat steps 2 and 3 until stabilized oil level is
at the proper level.
5. Check gauge placard location. “Full” mark on the placard
must be at the same elevation as the “full” mark at the Geare-
ducer.
