JLG 800A Service And Maintenance Manual page 105

NOTE: Minor shaft wear in seal area is permissible. If wear exceeds
0.020 inches (0.51 mm) diametrically, replace coupling
shaft.
NOTE: A slight "polish" is permissible in the shaft bearing areas.
Anything more would require coupling shaft replacement.
16. Remove and discard seal ring (4) from housing (18).
17. Remove thrust bearing (15) and thrust washer (14)
Inspect for wear, brinelling, corrosion and a full comple-
ment of retained rollers.
18. Remove seal (16) and back up washer (17) from Small
Frame, housing (18). Discard both.
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SECTION 3 - CHASSIS & TURNTABLE
19. Remove housing (18) from vise, invert it and remove and
discard seal
20. A blind hole bearing or seal puller is required.
21. Inspect housing (18) assembly for cracks, the machined
surfaces for nicks, burrs, brinelling or corrosion. Remove
burrs that can be removed without changing dimen-
sional characteristics. Inspect tapped holes for thread
damage. If the housing is defective in these areas, dis-
card the housing assembly.
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