JLG 340AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3-44 – JLG Lift – 3121259
6. Assemble thrust washer (14) then thrust bearing (15)
that was removed from the motor.
NOTE: The motor requires one thrust washer (14) with thrust bear-
ing (15). The coupling shaft will be seated directly against
the thrust bearing.
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).
THE OUTER BEARING (19) IS NOT LUBRICATED BY THE SYSTEM’S HYDRAULIC
FLUID. BE SURE IT IS THOROUGHLY PACKED WITH THE RECOMMENDED
GREASE.
NOTE: The coupling shaft (12) will be flush or just below the hous-
ing wear surface when properly seated while the coupling
shaft (12). The coupling shaft must rotate smoothly on the
thrust bearing package.