Taylor-Dunn TT-316-36, Operation, T Roubleshooting And Replacement Parts Manual

Page: 69 / 180

Maintenance, Service, and Repair
Transmission
Page 7
DISASSEMBLY AND
REASSEMBLY OF THE
PRIMARY REDUCTION GEAR
CASE
6. Raise the rear of the vehicle and support with jack
stands.
7. Place a drain pan under the
gear case that is capable o f
holding four quarts of oil
and drain the oil from the
front gear case.
8. If required, remove the
drive assembly from the
vehicle
NOTE: Refer to
Removing and
Installing the Drive
Assembly
for
information on removing
the drive from the vehicle.
9. Remove the motor only if the entire drive is to be
disassembled.
NOTE: Refer to Motor Removal and Installation
for information on removing the motor.
10. Remove the cover retaining bolts.
Oil Drain Plug
11. Remove the cover
plate from the
differential and let the
remaining oil drain from
the housing.
Be careful not to damage the sealing
surfaces on the housings. Damage to the
sealing surface may lead to an oil leak
resulting in damage to the internal parts
of the drive.
Always use a lifting strap, hoist, and jack
stands, of adequate capacity to lift and
support the vehicle. Failure to use lifting
and support devices of rated load capacity
may result in severe bodily injury.
12. Remove the circlip
from the idler gear.
13. Remove the input
shaft/bearing assembly
and idler gear/bearing
assembly from the gear
case cover at the same
time.
14. Remove the pinion nut from the output gear and
remove the output gear from the pinion shaft.
NOTE: If necessary, remove the seal from the input
shaft bore at this time.
15. Mark the gear case position in relation to the 3rd
member housing so that it will be reassembled in
the same position.
16. Remove the six retaining bolts holding the gear
case to the 3rd member housing.
NOTE: Make note of the angle of the gear case.
17. Remove the gear case housing from the 3rd
member housing.
18. Inspect all parts for signs of wear or damage.
1. Make sure the key-switch is in the “OFF”
position, then remove the key.
2. Place the forward-reverse switch in the
center “OFF” position.
3. Confirm the electric park brake is applied.
4. Place blocks under the front wheels to
prevent vehicle movement.
5. Disconnect the main positive and negative
cables at the batteries.