JLG 15/20MSP Service Manual - Manual (Page 47)

SECTION 3 - BASE COMPONENTS
3121231 – JLG Lift – 3-13
Spindle Sub-Assembly
1. Place the spindle (G1) on the bench with the carrier
portion facing up.
NOTE: Do not damage or scratch the seal surface of the
spindle (G1) during assembly.
2. Using the appropriate pressing tool (T-182377),
press on Main Bearing (G14) until it is fully seated.
3. Use the Output Planet Pin (G10) as a pressing tool
to install the Planet Bushing (G26) into the bore of
each Planet Gear (G9). The shaft will help guide the
bushing into the bore as well as prevent damage
from the press.
4. Place Tanged Thrust Washer (G32) into each
planet "window" of the Spindle (G1). Make sure the
tang sits in the cast groove on the inside of the win-
dow.
5. Place a Thrust Washer (G25) onto the Output
Planet Gear (G9). Line up the bores as best as you
can. Use grease to hold the Thrust Washer in place.
6. Slide the Output Planet Gear (G9) into the window
with the Tanged Thrust Washer (G32) until the
bores line up.
7. Insert Output Planet Shaft (G10) into the Planet
Shaft hole of the Spindle (1) and through the bores
of the Thrust Washers (G25) & (G32) and the
Planet Gear (G9).
8. Before pressing the Output Planet Shaft (G10) into
the Spindle (G1), make sure the Output Planet
Gear (G9) spins freely.
9. Press the Output Planet Shaft (G10) into the Spin-
dle (G1) until it bottoms out. Make sure the Output
Planet Gear (G9) spins freely after the Planet Shaft
is pressed in.
10. Repeat Steps 5-11 for the other two Output Planet
Gears (G9).
11. Turn the Spindle (G1) over so that the carrier end is
down.
12. Install Input Ball Bearing (G15) into the Spindle
(G1) bore.
13. Using a flat plate or rod, press the Motor Shaft Seal
(G17) into the center bore so that it is flush with the
face of the Spindle (G1).
Spindle Sub-Assembly