JLG 740AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
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4. Place housing (18) assembly into a soft jawed vise with
the coupling shaft bore down, clamping against the
mounting flange.
5. On the Torqlinks™ assemble a new backup washer (17)
and new seal (16) with the seal lip facing toward the
inside of Torqlink™, into their respective counterbores in
housing (18) if they were not assembled in procedure 2.
ORIGINAL DESIGN LARGE FRAME, TF & TG TORQLINKS™ THAT DO NOT HAVE
BACKUP WASHER (25) WHEN DISASSEMBLED MUST BE ASSEMBLED WITH A
NEW BACKUP WASHER (17), NEW BACKUP WASHER (25), AND NEW SEAL (16).
6. Assemble thrust washer (14) then thrust bearing (15)
that was removed from the Torqlink™.
NOTE: Torqlinks™ require one thrust washer (14) with thrust bear-
ing (15). The coupling shaft will be seated directly against
the thrust washer.
7. Apply masking tape around splines or keyway on shaft
(12) to prevent damage to seal.
8. Be sure that a generous amount of clean corrosion resis-
tant grease has been applied to the lower (outer) hous-
ing bearing/bushing (19). Install the coupling shaft (12)
into housing (18), seating it against the thrust bearing
(15) in the housings.