JLG 660SJ Service Manual - Manual (Page 86)

SECTION 3 - CHASSIS & TURNTABLE
3-36 – JLG Lift – 3120840
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.)
4. Pumps counterclockwise driven must have a posi-
tion of the valve plate 4 degrees de-centered in ccw
position.
5. Assembly of the port plate and the pump housing:
Note the correct position of the drilling that connects
high pressure to the control valve. Check control
valve drill position at the pump housing and fit
together.
Taper Roller Bearing Initial Tension
Cast iron pump housing must have initial tension of the
bearings: 0........0,05 mm, grind Pos. 12 if necessary.