JLG 740AJ, Service And Maintenance Manual, Page: 111 / 582

SECTION 3 - CHASSIS & TURNTABLE
3121160 3-59
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 counterbored 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 the 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 petro-
leum jelly to hold O-ring in place.
BEWARE OF SHARP EDGES OF THE COUNTERBORE WHILE SEATING THIS O-
RING.
12. The Cover (6) is now installed on this assembly. Taking
care to correctly align Pipe Plug hole (20) with those in
the Hub (1J), usually 90° to one another.
Locate the 4 counterbore holes in Hub (1G) (marked in
Step 3) and install 4 Shoulder Bolts (13). A slight tap with
a hammer may be necessary to align Shoulder Bolt with
Hub (1G) counterbore.