JLG 4394RT Service Manual - Manual (Page 75)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121249 – JLG Lift – 3-39
10. Place thrust spacer (9) onto input shaft (7).
11. Set carrier sub-assembly (3) on a flat work surface
so the large ends of cluster gears (3F) face up.
Locate the punch marks on the face of each cluster
gear (3F) and position them at 12 o’clock.
12. With "X" marked side facing up, place the ring gear
(4) around cluster gears (3F).
NOTE: This will hold the punch marks in position while
installing the carrier into the hub.
13. Place the carrier sub assembly (3) and ring gear (4)
together into mesh with internal gear (2), aligning
the "X" marked shoulder bolt hole in the ring gear (4)
over one of the shoulder bolt holes in the hub. Mark
the location of shoulder bolt holes on the outside of
ring gear and hub.
NOTE: You may lift the ring gear off the hub to align the
shoulder bolt holes. The ring gear and carrier are
installed together only to keep the punch marks on
the carrier in place.
14. With the internal splines facing up (counterbore end
facing down), place input gear (8) into mesh with
carrier sub-assembly (3).
15. Oil all exposed surfaces inside the hub (1G). Place
thrust washer (11) into the counterbore in top of the
carrier.
BEWARE OF SHARP EDGES IN THE COUNTERBORE WHEN YOU
INSTALL THE O-RING.
Figure 3-8. Cluster Gear Punch Marks