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Maintenance
LeeBoy 8608 Commercial Paver 5-35
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. Jack up the paver at least two feet and place on
sturdy jack stands.
3. Place blocks sufcient to support the hydraulic
motors underneath them. (Figure 5-37)
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 5-37. Hydraulic Motor and Torque Hub
4. Remove the 16 5/8-inch bolts and carefully remove
torque hub. Check O-Ring on the hydraulic motor
and replace if worn.
5. 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
Tables in Section 2).
6. Fill torque hub with oil. (Page 5-14)
7. Lower paver to the ground.
8. 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.
Replace TracksReplace Tracks
Tracks may need to be replaced due to wear or
damage. You will need an assistant for this procedure:
1. Locate track tension manifold on the hydraulic tank
(left side of the paver) and place a pan underneath
to catch hydraulic oil that will drain during the next
step. (Page 5-49)
2. Unscrew the track tension relief cartridge out of the
aluminum block about three turns until you hear the
tension pressure release.
3. Remove the master pin from the track. (Figure
5-47)
4. Drive out the pin.
5. Put the paver in reverse and back up slowly until
clear of the track. Discard track.
6. Place new track in front of the paver, positioning
the end of track with the three (3) hinges at the front
idler.
7. Drive paver forward onto the new track until it is
aligned at rear of the track drive tires.
8. Using a 4’ x 11/16” rod with a two-inch leg on one
end and a handle on the opposite end, the assistant
should hook rod onto the outer hinge of the track
on the rear side, pulling on rod while the operator
slowly moves paver forward.
9. The assistant can now hook rod at front of the track,
pulling it on at the front of idler as the operator
slowly moves in reverse until the track connects
over top of the front idler..
10. Insert pin and weld keepers at end of pin.
11. Screw track tension manifold relief cartridge back
into place and check hydraulic oil level. Add more if
needed.
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