Skyjack SJ 3220, Service Manual

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SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA
Base Section 5 – Procedures
5.3-6 Integrated Hub Wheel Removal and
Installation
Tools Needed
▪
Adjustable Torque Wrench
Capacity 95 Nm (70 ft-lb)
▪
Hub Puller
Grease Application -
New Front Wheels Only (if required)
Model
Recommended Grease
Type
SJ3220, SJ3226
SJ4720, SJ4726, SJ4732
STARPLEX EP2
UNIREX EP2
SHELL GADUS S2
1.
If the bearings are provided separately, they will
need to be coated in grease before installing on
the front wheels.
Front side shown
Inner Bearing Outer Bearing
2.
Thoroughly clean the bearings using solvent and
allow them to dry.
3.
Coat the inner and outer bearings with grease
completely. Be careful not to contaminate the
grease. This could cause internal damage
and shorten the life span of the bearings.
Contaminants include dust, dirt, sand, water or
other foreign particles.
4.
Install the inner and outer bearings. The grease
should allow the bearings to stick to the bearing
cups inside the wheel assembly.
NOTE
The inner bearing has a larger diameter than the
outer bearing . When installing, make sure the
bearings are inserted tapered-end first.
5.
From the back side of the wheel, place the
grease seal on the hub with the tapered end
facing inwards.
Grease Seal
Inner
Bearing
Back side shown
Grease seal
section view
6.
Lightly tap the grease seal into place using a
hammer, protecting the grease seal with a flat
piece of wood.