Maintenance
WTR Installation & Maintenance Manual 330-15000 • Revision A • August
WTR Series
5-1
5 Maintenance
5.1 Lubrication
The WTR series actuators have a totally sealed gear case, factory-lubricated with grease. No
seal can remain absolutely tight at all times. Therefore, it is not unusual to find a very small
amount of weeping around shaft seals—especially during long periods of idleness such as
storage. Using grease minimizes this condition as much as possible. If a small amount is
weeping at start-up, remove it with a clean cloth. Once the equipment is operating on a
regular basis, the weeping should stop.
5.1.1 Lubrication Inspection
Inspect Limitorque WTR actuators for correct lubrication prior to operating
—
particularly
following a long storage period.
Under normal usage and environmental conditions, adding or replacing the grease should
not be necessary. Limitorque suggests that during an overhaul program, the actuators should
be checked for leakage.
Each application has its own effect on the actuator and the frequency of these inspections
should be based on the application and the operating experience.
5.1.2 Factory Lubricant
The WTR-3 through 150 series operator gear case is factory-lubricated with EP-00
calcium complex base grease, suitable for temperatures from -20F (-29C) to +250F (+121C).
The WTR-430 through 575 series operator gear case is factory-lubricated with EP-2
calcium complex base grease, suitable for temperatures from 0F (-18C) to +150F (+66C).
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