5
CHANGING GEAREDUCER OIL
Drain the Geareducer oil by removing the drain plug. See
Figure
1
for location. If equipped with an external dipstick/oil level gauge,
remove the drain plug at that location, and drain the entire system.
To maximize service life of the Geareducer, remove a sample from the
drained oil and look for evidence of foreign material, such as water,
metal shavings or sludge, or send the oil sample to an oil analysis
lab for inspection. If you find unacceptable condensation or sludge,
flush the Geareducer with mineral oil before refilling.
After inspection is complete, fill the Geareducer with
53 liters
of
oil. See
Figure 1
for location. If the Geareducer is equipped with
an external dipstick/oil level gauge an additional 3 to 4 liters of oil
will be required. Be certain that the vent on the Geareducer (and
external dipstick/oil level gauge, if present) is not plugged. Verify
that the gauge/drain line is full and that there aren't any leaks at
the connections.
Alternate procedure:
If the cooling tower has an external oil gauge and drain line equipped
with a three-way valve below the oil level gauge. See
Figure 2
.
1. Remove pipe plug. Turn valve control stem clockwise to open
drain.
2. With Geareducer drained, the three-way valve turned clockwise,
and the pipe plug removed, connect fill source (usually a hose
to a pump, to the three-way valve).
operation and service
Pump oil through the hose. Check oil level occasionally by
turning the valve control stem counterclockwise and allowing
the oil level in the sight glass to stabilize. Continue filling until
full level mark is reached.
3. With the oil level at the full mark turn the valve control stem
counterclockwise to close the drain and open the valve to the
sight glass. Remove the oil filling line and reinstall pipe plug in
the three-way valve.
REPAIR AND OVERHAUL
The Model 2700 and 3000 Geareducer is assembled using special-
ized tools and fixtures. Bearings and gear sets are unique and not
available from other sources. Geareducers can be repaired in the
field — however, major repairs require the use of a fully equipped
machine shop. Refer to the
Field Repair
section of this manual for
further instructions.
If your Geareducer ever needs replacement or repair, Marley recom-
mends returning the unit to a Marley factory service center. Contact
your Marley sales representative to discuss course of action. A factory
reconditioned Geareducer carries a one year warranty. The Marley
Order Number on your cooling tower will be required if the Geareducer
is shipped back to the factory for repair. Obtain a
“Customer Return
Material”
tag from the Marley sales representative in you area.
To find your Marley sales representative call check the internet at
spxcooling.com/sales.
OIL LEVEL CHECK
OIL GAUGE
AND DRAIN LINE
OIL GAUGE
VENT
OIL LEVEL
GAUGE
DRAIN PLUG
THREE-WAY
VALVE
Figure 2 – Service Fittings
