Spindle Sub-Assembly - JLG 1930ES Service Maintenance Manual

SECTION 3 - CHASSIS & SCISSOR ARMS

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 bottom 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 nee-
dle rollers. Use grease to retain the needle rollers in
the bore.
3-16
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 bottoms
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.
– JLG Lift – 3121166