5
Scheduled Maintenance
Warning
—Make certain that mechanical equipment is inoper-
able during periods of
maintenance—or during any situation of
possible endangerment to personnel. If your electrical system
contains a disconnect switch, lock it out until the period of expo-
sure to injury is over.
Monthly
—Check Geareducer oil level. Shut down the unit and
allow 5 minutes for the oil level to stabilize. Add oil if required,
noting the addition in your maintenance log. If equipped with an
external dipstick/oil level gauge, small quantities of oil can be
added at that location.
Semi-annually
— If using turbine-type mineral oil, change oil—see
Changing Geareducer Oil
for instructions. Check that all the
assembly bolts and cap screws are tight, that oil plugs and pipe
connections are in place and free from leaks, and that the vent on
the Geareducer (and external dipstick/oil level gauge, if present) is
clear—a clogged vent can lead to oil leaks. Intermittent operation
and extended periods of downtime can cause condensation of
water in the oil. If using synthetic Marley Gearlube, the oil condition
must be inspected every six months—see
Changing Geareducer
Oil
for maximizing service life.
Annually
—Check mechanical equipment anchor bolts, drive shaft
coupling bolts, and coupling set screws. Tighten as required. Check
Geareducer exterior yearly and touch up with epoxy paint, if re-
quired. Coat all exposed threads at pipe joints to prevent corrosion.
Every 5 Years
—If using synthetic Marley Gearlube, change oil.
To maintain five-year change intervals, use only synthetic Marley
Gearlube. It is recommended to monitor the oil condition every
six months throughout the five-year period per the instructions in
Changing Geareducer Oil
.
operation and service
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.
When using synthetic oil with extended service intervals remove a
sample for lab analysis and look for evidence of foreign material,
such as water, metal shavings or sludge. If you find unacceptable
condensation or sludge, flush the Geareducer with mineral oil
before refilling.
After inspection is complete, fill the Geareducer with
10 quarts
(9.5 liters) of oil. See
Figure 1
for location. If the Geareducer is
equipped with an external dipstick/oil level gauge an additional 2
to 3 quarts (1.9 to 2.8 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.
Repair and Overhaul
If your Geareducer ever needs replacement or repair, we recommend
returning the unit to a Marley factory service center. Contact your
Marley sales representative to discuss course of action. The 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 visit
spxcooling.com.
Major repairs require the use of a fully equipped machine shop.
If you decide to repair or overhaul your Geareducer, refer to the
Field Repair Section
and
Geareducer Parts List
.
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