Model XE520s Service Troubleshooting
Part 2. Chain Covers and Round Disk Rev.
1
2
Procedure:
1. Most troubles are scrubbing noises.
Major causes are Round Disk is not
in center and swing of the Round
Disk, as shown in figures 1 & 2.
2. If Round Disk is not in center and
causes noise, refer the procedure to
replacing Chain Covers and
reassemble.
3. If Round Disk swings too much,
then take apart Chain Covers
together with Round Disk and use
Phillips head screw driver to release
5x16mm Tapping Screws together
with 1/4"x19mm flat washers and
put the Cross Bar with Round Disk
on a flat surface and check for warp.
Correct the warp with force until
Round Disk swings between +/- 3
mm.