JLG 680S, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3121234 3-55
10. Install retaining ring (34) into input shaft retaining ring
groove.
11. Place input shaft assembly (35) into spindle bore with
unsplined end facing out.
12. Place thrust spacer (36) over input shaft (35) with coun-
terbore side facing spindle.
13. Locate the four counter reamed holes in the face of the
hub, mark them for later identification.
14. Place o-ring (22) into hub counterbore. Use petroleum
or grease to hold o-ring in place. Slight stretching of
o-ring may be necessary to insure proper seating.
15. Place carrier assembly on a flat surface with large gears
up and positioned as shown. Find punch marked tooth
on each large gear and locate at 12 o’clock (straight up)
from each planet pin. Marked tooth will be located just
under carrier on upper two gears.
16. With shoulder side of ring gear (21) facing down, place
ring gear over (into mesh with) large gears. Ensure
punch marks remain in correct location during ring gear
installation.