Lippert Components In-Wall Slide-Out Winnebago, Repair Manual, Page: 10 / 16

Rev: 08.07.18
Page 10
CCD-0001772
Bearing Block/Spur Gear
NOTE:
The bearing blocks do not need to be removed if only the spur
gears are being replaced.
Inspection
A.
Stress cracks on or around the bearing block foot or v-roller
arm: If the bearing block foot is found to be cracked or
bent, replacement of the bearing block will be necessary.
B. Excessive damage to spur gear (teeth missing, etc).
Replacement of the spur gear will be necessary.
Replacement
Below are the steps to replace a bearing block or a spur gear (Figs. 16, 17, 18):
1.
If the bearing block shows any type of damage that indicates
repeated contact with the gear rack, it
MUST
be completely
removed from the drive assembly and replaced. If damage is
evident on either bearing block,
BOTH
the upper and lower
bearing blocks MUST be replaced.
2.
Pull the torque shaft up and out from the top of the column,
through both bearing blocks. Be careful not to drop the spur
gears if they are not being replaced, as they will be loose in the
assembly once the torque shaft is removed.
Bearing Block
Spur Gear
Bearing Block Rivet
NOTE:
If only replacing the spur gears, place the new spur gears into the bearing blocks with the standoff
of each spur gear oriented to the bottom (otherwise bearing block damage will occur) (Figs.
19A/20A). Reinsert the torque shaft from the top of the column back through both bearing blocks
and spur gears. Skip to step 6.
3. Remove the rivets that hold the bearing block in place. These rivets may be made out of aluminum
(Fig. 17) or plastic (Fig. 18) depending on the side being replaced. Remove the bearing blocks.
4. Install the replacement upper and lower bearing blocks and spur gears on the torque shaft and
reinstall the torque shaft assembly into the column. Install new rivets into the bearing blocks.
5.
Install shoe and v-roller onto the bearing block assembly after the column is reassembled.
6. Reinstall the gear racks.
7.
Reinsert the coupler and motor into the upper bearing block.
NOTE:
Please refer to the
Re-timing Procedure
section of this manual on Page 11.
8.
If all other concerns have been addressed, the assembly can now be installed back onto the unit. See
Assembly Installation Procedure on Page 12.
Fig. 16
Fig. 17 Fig. 18
Fig. 19 - 300:1
Fig. 20 - 500:1
A A