JLG 3246ES Service Manual - Manual (Page 52)

SECTION 3 - CHASSIS & SCISSOR ARMS
3-16 – JLG Lift – 3121166
Spindle Sub-Assembly
1. Using an appropriate pressing tool, press in the 2
main bushings in the upper bore of the spindle.
The lower bushing needs to be flush with the bot-
tom of the bore and the upper bushing needs to
be flush with the bottom of the bore.
2. Using the clevis pin from the steering linkage or an
M12 bolt, drive the flanged steer link bushing into
the appropriate spindle ear hole. If the wheel drive
is for the left wheel then, with the carrier side up
and kingpin bore oriented to the top, put the steer
link bushing in the left ear.
3. Using the appropriate pressing tool, press on main
bearing until it is fully seated.
4. Insert the motor shaft bearing into the center bore
of the spindle. The bearing is a slight slip fit, but it
may require some press to assemble if the bearing
becomes misaligned.
5. Retain the bearing with the spiral retaining ring.
6. Line the bore of the output planet gear with 22
needle rollers. Use grease to retain the needle roll-
ers in the bore.
7. Place tanged thrust washer into each planet “win-
dow” of the spindle. Make sure the tang sits in the
cast groove on the inside of the window.
8. Place a thrust washer onto the plane gear. Line up
the bores as best as you can. Use grease to hold
the thrust washer in place.
9. Slide the planet gear into the window with the
tanged washer until the bores line up.
10. Insert an output planet pin into the planet pin
hole of the spindle and through the bores of the
thrust washers and the planet gear.
11. Before pressing the planet pin into the spindle
make sure the gear spins freely.
12. Press the planet pin into the spindle until it bot-
toms out. Make sure the planet gear turns freely
after the planet pin is pressed in.
13. Repeat Steps 6-12 for the other two output planet
gears.
14. Turn the spindle over so that the carrier is down.
15. Using a flat plate or rod, press the motor shaft seal
into the center bore so that it is flush with the face
of the spindle.
16. Grease and install the motor O’ring into the
groove.
CARE SHOULD BE TAKEN TO PREVENT ANY OIL FROM MAKING
CONTACT WITH THE BRAKE DISCS. IF THIS OCCURS IT WILL
DEGRADE THE BRAKES PERFORMANCE.