SUTPHEN TOWERS, INC. 2012
Manual-2012
_SL75-SA75-SP70.docx
Page 25 of 55
8/31/2012
AERIAL TOWER LUBRICATION AND SERVICE
STABILIZERS
When the stabilizers are extended completely to the ground, an area of the inner sleeve
becomes exposed. This exposed area also comes in contact with the inside surface of the outer
tube. This area should be periodically coated with a light film of grease. Visually check safety
pins and locks. Lubricate grease fittings on each jack cylinder, and air lock cylinders with air
lubrication oil.
MAIN LIFT CYLINDERS
The main lift cylinders are located on each side of the main base section of the tower assembly.
Each cylinder has two (2) lube points. One (1) lube point is on the rod end where the rod eye
attaches to the side plate of the tower assembly. One (1) lube point is on the bottom end
where the cylinder is attached to the turntable. At each point, a grease fitting is installed.
These points should be lubricated with a good grade of multi-purpose grease every 25 hours of
operation, or annually, whichever comes first.
PIVOT SHAFT BEARINGS
There are two (2) pivot shaft bearings located on top of the upper assembly side plates, one on
each side, which rotate on the pivot shaft. The pivot shaft is permanently attached to the
turntable side plates on the outside of the side plates. Grease fittings are installed on the pivot
shaft bearings. These bearings need to be lubricated with a good grade, multi-purpose grease
every 25 hours of operation, or annually, whichever comes first.
TURNTABLE BEARING
The bearing and drive gear assembly is located directly under the turntable. The entire
turntable and tower assembly rotates on this bearing. This bearing is pre-lubricated at the
factory with a multi-purpose grease. Grease fittings are provided on the inside of the bearing
accessible through the top of the upper assembly. Lubrication should be done three (3) months
after delivery, then annually. Use multi-purpose grease.
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