Model
SE578A
Service
Troubleshooting
Parts
2. Side Cases and Round Disk
Rev.
Procedures：
1.
Rubbing noises are the most case
which occurs at this portion. It is
caused either by the round disk off
center or the swing of the round disk,
as shown in figure 1 & 2.
2.
If the round disk is off center, take it
apart and resume according to the
procedures for replacing chain covers.
3.
If the round disk swings with too much
displacement, take apart chain covers
and the round disk, and use Phillips
head screw driver to release 5x16mm
tapping screws and 1/4
"
x19mm flat
washers. Put the round disk with cross
bar on the platform and check any
deforms. Deform can be corrected with
force. The displacement due to the
swing of the round disk is within 3 mm
prior to shipping.
