JLG 660SJ Service Manual - Manual (Page 88)

SECTION 3 - CHASSIS & TURNTABLE
3-38 – JLG Lift – 3121202
6. With shoulder side of ring gear (4) facing down,
place ring gear over (into mesh with) large gears. Be
sure that punch marks remain in correct location
during ring gear installation. The side of the ring
gear with an x stamped on it should be up.
7. While holding ring gear (4) and cluster gears (3F) in
mesh, place small side of cluster gears (3F) into
mesh with the internal gear (2) and input gear (13).
On the ring gear locate the hole marked “x” over one
of the marked counterbore holes (step 3) in hub
(1G).
NOTE: If gears do not mesh easily or carrier assembly does
not rotate freely, then remove the carrier and ring
gear and check the cluster gear timing.
8. Input gear (8) is installed, meshing with teeth of the
large diameter cluster gear (3F). The counterbore on
the input gear (8) locates on the shoulder of the
thrust spacer (9). This is to be a slip fit and operate
freely.
9. Thrust washer (10) is installed onto the input gear
(8) and should locate on the gear teeth shoulder.
10. Thrust washer (11) is installed into the counterbore
of the carrier (3).
11. Place O-ring (5) into cover (6) counterbore. Use
petroleum jelly to hold O-ring in place.