JLG 800A Service And Maintenance Manual page 104

SECTION 3 - CHASSIS & TURNTABLE
NOTE: If rotor set (8) has two stator halves (8B & 8D) and two sets
of seven vanes (8C & 8E) as shown in the alternate con-
struction TG rotor set assembly view, check the rotor lobe
to roller vane clearance at both ends of rotor.
12. Remove drive link (10) from coupling shaft (12) if it was
not removed with rotor set and wear plate. Inspect drive
link for cracks and worn or damaged splines. No percep-
tible lash (play) should be noted between mating spline
parts. Remove and discard seal ring (4) from housing
(18).
13. Remove thrust bearing (11) from top of coupling shaft
(12). Inspect for wear, brinelling, corrosion and a full
complement of retained rollers.
3-50
14. Check exposed portion of coupling shaft (12) to be sure
you have removed all signs of rust and corrosion which
might prevent its withdrawal through the seal and bear-
ing. Crocus cloth or fine emery paper may be used.
Remove any key (12A), nut (12B), washer (12C), bolt
(12D), lock washer (12E), or retaining ring (12F).
15. Remove coupling shaft (12), by pushing on the output
end of shaft. Inspect coupling shaft bearing and seal sur-
faces for spalling, nicks, grooves, severe wear or corro-
sion and discoloration. Inspect for damaged or worn
internal and external splines or keyway. Replace cou-
pling shaft if any of these conditions exist.
Inspection Areas
3121628