Jack Maintenance; Trailer Wheel Bearings - Generac Power Systems MAGNUM MLT4060MVD Owner's Manual

Jack Maintenance

Before each use, check each jack foot for damage and
remove any mud or debris. The jacks must be clean and
in good operating condition to properly support the unit.

Trailer Wheel Bearings

The trailer axles are equipped with grease fittings to allow
lubrication of the wheel bearings without the need to
disassemble the axle hub. Use only a high quality grease
made specifically for lubrication of wheel bearings, such
as Valvoline W615 or equivalent.
See Figure 4-2. To lubricate the wheel bearings:
B
Figure 4-2. Wheel Bearing Cross Section
Remove the small rubber plug (A) from the metal
1.
end cap (B).
Attach a standard grease gun fitting to the grease
2.
fitting (C).
Pump grease into the fitting until fresh grease is
3.
visible around the nozzle of the grease gun.
Wipe any excess grease from the axle hub with a
4.
clean cloth and replace the rubber plug.
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.
Every six months, or depending on usage, check for play
in each bearing by jacking up the trailer, then trying to
rock the wheel. If further assistance is required, contact
Generac Mobile Products Technical Service at 1-800-
926-9768.
Owner's Manual for MLT4060MVD Light Tower
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Maintenance
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