Jack Maintenance - Generac Power Systems MAGNUM MLT4250 Owner's Manual

Use only a high quality grease made specifically for
lubrication of wheel bearings. Wipe any excess grease
from the hub with a clean cloth and replace the rubber
plug when finished. The minimum recommended
lubrication is every 12 months or 12,000 miles (19,312
km); more frequent lubrication may be required under
extremely dusty or damp operating conditions.

Jack Maintenance

The following procedures should be performed at least
annually: For side-wind models, the internal gearing and
bushings of the jack must be kept lubricated.
•
See Figure 4-4. Apply a small amount of
automotive grease (A) to the internal gearing by
removing the jack cover, or if equipped, use a
needle nose applicator or standard grease gun on
the lubrication point found on the side of the jack
near the crank. Rotate the jack handle to distribute
the grease evenly.
•
A lightweight oil (B) must be applied to the handle
unit at both sides of the tube for side-wind models.
•
If equipped, the axle bolt and nut assembly of the
caster wheel must also be lubricated with the same
lightweight oil.
•
For top-wind models, apply a lightweight oil to the
screw stem.
A
B
A
B
B
Figure 4-4. Jack Maintenance
Owner's Manual for MLT Light Tower
A
B
B
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Maintenance
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