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
14 gallons
(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 quarts 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 clock-
wise, and the pipe plug removed, connect fill source (usually
a hose to a pump, to the three-way valve).
operation and service instructions
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
recommends 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 913 664 7400 or
check the internet at spxcooling.com.
OIL LEVEL CHECK
OIL GAUGE
AND DRAIN LINE
OIL GAUGE
VENT
OIL LEVEL
GAUGE
DRAIN PLUG
THREE-WAY
VALVE
FIGURE 2
Service Fittings
