JLG 740AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3121160 3-111
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.
THE OUTER BEARING (19) IS NOT LUBRICATED BY THE SYSTEM’S HYDRAULIC
FLUID. BE SURE IT IS THOROUGHLY PACKED WITH THE RECOMMENDED
GREASE, PARKER GEAR GREASE SPECIFICATION #045236, E/M LUBRICANT #K-
70M OR MOBIL MOBILITH SHC ® 460.
NOTE: The coupling shaft (12) will be flush or just below the hous-
ing wear plate surface on Torqmotors™ when properly
seated. The coupling shaft must rotate smoothly on the
thrust bearing package.
9. Apply a small amount of clean grease to a new seal ring
(4) and insert it into the housing (18) seal ring groove.
NOTE: One or two alignment studs screwed finger tight into hous-
ing (18) bolt holes, approximately 180 degrees apart, will
facilitate the assembly and alignment of components as
required in the following procedures.The studs can be
made by cutting off the heads of either 3/8-24 UNF 2A or 5/
16-24 UNF 2A bolts as required that are over 0.5 in.
(12.7 mm) longer than the bolts (1) used in the Torqmo-
tor™.