OM45T_
Rev N
Page 23
The following is a list of the lubricant characteristics:
•
Lubrication Engineers (LE) 4622:
LE4622 is Lithium complex grease. Operating temperature range is -40
degrees to 400+ degrees Fahrenheit (-40 degrees to 204+ degrees Celsius).
•
Mobil SHC624:
low temperature synthetic oil for worm gear reducers. Operating temperature range is -40
degrees to 125+ degrees Fahrenheit (-40 degrees to 52+ degrees Celsius).
•
Moly Grease:
grease lubricant containing molybdenum disulfide. Operating temperature range is -85
degrees to 300+ degrees Fahrenheit (-29 degrees to 149+ degrees Celsius).
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4.5.5 Jackscrews/Motors
Periodically inspect lifting screws on jackscrew ballscrew assemblies to ensure adequate lubrication. Loosen
Jackscrew ballscrew boot clamps to expose the lifting screw assembly. Fully extend jackscrew assembly
being careful not to exceed preset mechanical limits. Brush thin coating of LE#4622 grease on exposed lifting
screw. Replace boot and attach corresponding boot clamps. If lifting screw is rusty, remove existing lubricant
with solvent and wire brush rusted area. Rinse with solvent and apply fresh grease.
Periodically inspect and remove dust or dirt deposits from the motor housings to avoid hindering the heat
exchange with the ambient air. Slight dirt accumulation on the air vent screw through splash oil cannot be
avoided; however, keep vent screw clean to ensure proper pressure compensation.
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4.5.6 Gear Motor/Housing Fill Drain Requirements
Lube points 2 & 4, as shown in the Lubrication Chart (
Table 5.1
),
may
require you to remove the indicated
drain plug (if present) and, by using a measuring cup, to collect and measure the amount of SHC624 oil that
drains out. The specified amount of oil must be added to the gear motor/housing (after the drain plug has
been reinstalled), using a supplied funnel to pour new oil into the fill/vent plug opening. The addition of oil
requires the use of an appropriate filling utensil. Use of a modified level stick will NOT correctly gauge the
appropriate amount of oil that is present in the gear housings.
Table 4.1: Lubrication Chart
Lube
Pt. #
Components to be Lubricated
Frequency
(Months)
1 3
6
12
Type of
Service
Lube
Type
#/Quantity
of Lube
Points
1
El Jackscrew Housing
X
Pressure Fitting LE4622 1
2
***
El Gear Motor Housing Fill & Drain
I* C**
Pipe Plugs
SHC624 10 Oz
3
Az Jackscrew Housing
X
Pressure Fitting LE4622 2
4
***
Az Gear Motor Housing Fill & Drain
I* C**
Pipe Plugs
SHC624 10 Oz
5
Panning Frame Tube Assembly &
Thrust Pads
X
Aerosol Spray
Moly
Grease
Surface
Coverage
X
= Lubricate
I
= Inspect
C
= Change
*
Inspection requires checking for visible signs of leakage. Drain, replace, and add oil to ensure appropriate level requirements.
Excessively dirty oil requires replacement with fresh oil. In case of excessive oil leakage, refer to appropriate troubleshooting info.
Periodic inspections can be less frequent after the second scheduled inspection is completed without problems.
**
Initial oil change requirements include flushing gear boxes with a standard cleaning agent.
***
For motors that have no visible drain or fill plugs, no maintenance is required and just a general inspection for oil leakage is
needed.
