JLG E300 Service Manual - Manual (Page 70)

SECTION 3 - CHASSIS & TURNTABLE
3-36 – JLG Lift – 3121253
keyway. Replace coupling shaft if any of these con-
ditions exist.
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.
15. Remove and discard seal ring (4) from housing (18).
16. Remove thrust bearing (15) and thrust washer (14).
Inspect for wear, brinelling, corrosion and a full com-
plement of retained rollers.
17. Remove seal (16) and back up ring (17) from hous-
ing (18) and backup washer (25). Discard both.
18. Remove housing (18) from vise, invert it and remove
and discard seal (20). A blind hole bearing or seal
puller is required.
19. Inspect housing (18) assembly for cracks, the
machined surfaces for nicks, burrs, brinelling or cor-