LeeBoy 8515E - Torque Hub

5-34 LeeBoy 8515E Conveyor Paver
Maintenance
Capscrew
(or Bolt)
+
+
Grease
Shaft
Splines
Capscrew
(or Bolt)
O-Ring
(Required)
Figure 5-39. Hydraulic Motor Mount
To avoid contamination:
• Remove all matter from around the ports of the
motor and the threads of ttings.
• Fill the case of the motor being used (piston-type,
gear motor, gerotor motor, geroller motor or vane
motor) with clean hydraulic uid through the highest
case drain port and connect the case drain line.
Failure to do so will result in damage to the motor
through inadequate lubrication on start-up.
• Units that are mounted vertically with the shaft up
require special attention to ensure the uid level in
the case is high enough to lubricate the front shaft
bearing(s).
Once all system connections are made, the motor
should be run for 15 - 30 minutes at no-load and half-
speed to bleed air from the hydraulic system.
Torque HubTorque Hub
If the torque hub has been damaged or worn, use to
following procedures for replacement.
1. Park paver on a level surface.
2. Raise the hopper and insert safety prop. (Page
5-5)
3. Jack up the paver at least two feet and place on
sturdy jack stands.
4. Place blocks sufcient to support the hydraulic
motors underneath them. (Figure 5-37 on Page
5-33)
NOTE: Mark location of torque hub to the
undercarriage before removing to ensure the
drive motor is reinstalled in the same position.
5/8-Inch
Bolts
(16)
Figure 5-40. Torque Hub
5. Remove the 16 5/8-inch bolts and carefully remove
torque hub. (Figure 5-40) Check O-Ring on the
hydraulic motor and replace if worn.
6. Install new torque hub into position to align with the
hydraulic motor. Place thread-locking adhesive on
torque hub bolts and torque bolts. (See Torque
Specications in Section 2)
7. Fill torque hub with oil. (Page 5-11)
8. Lower paver to the ground.
9. Start paver and check for any leaks with engine
running.
Stop the engine immediately if any
hydraulic leak is noted. DO NOT start the engine
until the leak has been repaired.