Generac Mobile MDE570P, Owner'S Manual, Page: 57 / 80

Owner’s Manual for Mobile Generator 53
Top-Wind Models
•
Apply a light weight oil to the screw stem.
Figure 4-5. Lubrication Points
Trailer Wheel Bearings
The trailer axles are equipped with oil bath bearings. the
clear plastic cap serves as a site glass to verify oil level in
the axles. The cap should be tightened to 25 ft-lb. Over
tightening can damage the sealing o-ring and cause an
oil leak. The oil can be refilled through the clear cap by
removing the rubber plug in the center of the cap. Please
use one of the recommended oils to lubricate the
bearings:
•
SAE 90
•
SAE 80W-90
•
SAE 75W-90
In order to remove the hub/rotor assembly a gear puller
may be required. The oil seal is a 2-part seal where the
inside diameter of the seal presses onto the spindle
journal and the outside diameter of the seal presses into
the hub bore. A gear puller is the most efficient way to
remove the hub from the spindle. A new oil seal must be
installed before reassembly or the old seal will leak upon
re-installation and use. When re-installing a new oil seal,
be sure to correctly orient the seal. Most are marked AIR
SIDE. This side must not be placed towards the oil and
bearing or it will fail in service. Install new seal using a
block of wood and hammer to drive in the seal bore
square until the outer face is flush with the seal bore face.
Do not use permatex on rubber-encased oil seals.
Figure 4-6. Hub Assembly
Oil
Grease
Oil
Grease
002823a
Grease
Oil
Oil
002824a
Oil
002825a
A Rubber cap
B Clear plastic cap
A
B
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