4
operation and service instructions
SCHEDULED MAINTENANCE
Warning
—Make certain that mechanical equipment is inoperable
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 exposure 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 opera-
tion and extended periods of downtime can cause condensation
of water in the oil. If using 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 required.
Coat all exposed threads at pipe joints to prevent corrosion.
Every 5 Years—If using Marley synthetic Gearlube, change oil. To
maintain five-year change intervals, use only 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.
LUBRICANTS
To insure maximum performance and service life, it is recommended
Marley factory lubricants be used in all Marley Geareducers.
Marley lubricants can be purchased through your local Marley
sales representative.
If lubricants other than Marley factory lubricants are used, they must
not contain any additives (such as detergents or EP additives) which
are adversely affected by moisture and could reduce the service
life of the Geareducer. The responsibility for use of lubricants other
than Marley factory lubricants rests with the customer/owner and
the lubricant supplier.
Seasonal temperature changes may require one viscosity of oil for
summer operation and another for winter operation. Refer to the
tables below for the seasonal selection information.
Table 1
Oil viscosity
Winter or Summer
Severe Duty/High Temperature
Air Temperature at Geareducer
Below 110°F (43°C)
Above 110°F (43°C)
ISO 150
ISO 220
