JLG 660SJ Service Manual - Manual (Page 82)

SECTION 3 - CHASSIS & TURNTABLE
3-32 – JLG Lift – 3120840
4. Assemble the sealing ring. The fitting tool will hold
the sealing ring in the correct position in the pump
housing.
5. Assemble the snap ring.
6. Assemble the snap ring in the correct position.
Disassembly and Assembly
1. Disassemble the pilot valve.
2. Mark the position of the port plate and remove the
socket screw from the port plate.
3. Remove the port plate together with the valve plate
(hold the valve plate so that the plate can’t fall
down).