JLG 600A_AJ Service Manual - Manual (Page 77)

SECTION 3 - CHASSIS & TURNTABLE
3121201 – JLG Lift – 3-27
23. Remove the O-ring. Lifting of the valve plate isn’t
shown.
24. A usual commercial bearing puller is used to disas-
semble the external bearing ring of the taper roller
bearing inside the port plate. Take care not to dam-
age the surface of the port plate.
25. The spring has additional pretension while you dis-
assemble the three pressure pins inside the cylinder.
Assembly Notes
1. Measurement of the taper roller bearing pretension.
2. Note that there is a correct connection of the piston
rod and the swash plate.
3. Pumps clockwise driven must have a position to the
valve plate 4 degrees out of center in the same
direction de-centered like drive direction. (Note
spare parts exist as cw and ccw valve plates.)