Planetary Wheelend - Taylor-Dunn Tiger TC-030-60 Operation, Maintenance, And Replacement Parts Manual

Planetary Wheelend

1. Before starting brake reassembly, apply a small
quantity of EP-2 grease to the following brake
components:
• Adjustment bolt assembly
• Contact points of levers and shoes that ride against
each other
• Push rod ends of the wheel cylinder
• Anchor pins with mating holes and tighten capscrews
to 12-16 foot pounds.
2. If equipped, install parking brake lever on the trailing
shoe and the parking link on the leading shoe.
3. Install the two anchor pins in the backing plate holes.
4. Position the trailing shoe with the wheel cylinder push
rod and anchor pin. Install anchor pin retainer clip by
positioning it on the pin and rotating it until it sets flat
on the shoe.
5. If equipped, install the parking brake cable thru the
backing plate and engage the parking brake lever.
6. Install the stamped auto adjusting spring on the
leading shoe.
7. Assemble a star wheel adjustment bolt and shoe
spring to the trailing shoe and leading shoe and as
the leading shoe is positioned with the wheel cylinder
push rod and anchor pin. Install anchor pin retaining
clip.
8. Install the green return spring onto the leading shoe
for the right hand brake and trailing shoe for the left
hand brake. Install the black return spring onto the
trailing shoe for the right hand brake and leading
shoe for the left hand brake.
9. Install the short auto adjustment wire to connect the
adjuster pivot to the pin near the brake shoe anchor.
Install the long auto adjust wire to connect the
adjuster pivot to the stamped auto adjust spring.
Tighten adjuster pivot bolt.
10. Rotate the star wheel on the adjustment bolt to verify
easy rotation with a 'click' in one direction and
restricted rotation in the other direction.
11. If tapered bearing cups were removed from the wheel
hub press new inner cup and outer cup to the bottom
of their bores. Lubricate and install inner bearing
cone. Press wheel hub oil seal into bore flush with
wheel hub casting.
12. Lubricate spindle seal journal and wheel hub seal
lip. Install wheel hub and drum onto the spindle.
Lubricate outer bearing cone and install on spindle.
Take care to not let the hub and drop before the outer
bearing cone is positioned on the spindle.
Maintenance, Service, and Repair
13. Thread the wheel bearing adjustment nut onto the
spindle. Tighten nut to 400 foot pounds. Rotate the
wheel hub while rapping the hub several times with
a 10 pound dead blow mallet, Retighten the nut to
400 foot pounds, rotate the hub and rap the hub
again. Retighten, rotate and rap again. Loosen the
nut 1/4 of a turn and then retighten to 100 foot pounds
for final adjustment.
14. Install the planetary ring gear. Note that the pin from
the wheel bearing adjustment nut must engage the
mating hole on the back side of the planetary ring
gear. Index the planetary ring gear to mate with the
pin.
15. Install axle shaft, sun gear and sun gear retaining
ring.
16. If the planetary spider was disassembled, install the
three planetary pinion shafts from the inside face of
the planetary spider. Press the uncoated end of each
shaft into the respective spider bore until the standout
of each shaft is 1.775 to 1.770 inches from the
machined spider face to far end of the pinion shaft.
17. If a new planetary pinion shaft was installed, carefully
drill a 5/16 inch diameter hole, 1/4 inch deep into the
planetary pinion shaft by drilling through the 3/8-16
hole in the planetary spider.
18. Clear all chips from the drilled holes and install
planetary pinion shaft setscrews in, the three tapped
holes. Tighten the setscrews to 30-35 foot pounds.
19. Apply lubricant to the bores of planetary pinion gears.
Install the gears the planetary pinion shafts. Install
the planetary pinion thrust washers and snap rings.
20. Apply a 1/8 inch bead of silicone sealant to the
mounting face of the planetary spider. The bead
should be continuous end encircle each of the 16
mounting holes. Install the planetary spider assembly
into the wheel hub. Install the sixteen cap screws
and washers. Torque the capscrews to 85-115 foot
pounds.
21. Reattach the brake lines to the wheel cylinders and
bleed the brake system.
22. Adjust brakes by inserting an adjusting tool through
the forward slot in the brake backing plates and
engaging the star wheel of the adjuster. Move the
tool handle downward to expand the shoes until a
resistance to hub/drum rotation is felt. Adjust in the
opposite direction until the hub/drum just rotates
freely.
Drive Axle: MT-030-60-C
Page 9