JLG GRADALL 522D Owner's/Operator's Manual page 110

Se c t ion 3
Pre pa re Pa rt s for Asse m bly
NOTE
Do not use any liquid that leaves a film of oil or
does not evaporate quickly.
3. Place installation tool (9) under oil seal ring with
Toric ring (2). Submerge ring in receptacle filled
with trichloroethylene until entire surface of Toric
ring is wet. Figure 3.13.
Figure 3.13
9
4. With Toric ring surface wet (2), use installation
tool (9) to install oil seal ring and Toric ring
perpendicular to ring bore. Use a rapid and
uniform pressure to push Toric ring under ring
retention lip. Figure 3.14.
Figure 3.14
9
20
1
2
1
2
5. Verify mounting distance (A) in at least four
places spaced 90 degrees apart. The difference
in the mounting distance (A) around ring cannot
be more than 0.04 inches (1 mm). Figure 3.15.
Figure 3.15
6. If adjustments are necessary, use installation tool
(9) to push ring. Do not use your hands.
Figure 3.16.
Figure 3.16
1
7. Toric ring may become distorted if not entirely wet
or if there is a sharp edge on the retention lip and
bore.
(A) 0.04 in (1 mm)
9
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