Model
SE578SA
Service
Troubleshooting
Parts
2 Side Cases and the Round Disk
Rev.
Procedures：
1.
The problems are usually grinding
noises due to rubbing between two
parts. The cause is normally
misalignment or swing of the Drive
Pulley, as shown in figures 1 and 2
.
2.
If it is misalignment of the Drive
Pulley which causes rubbing noises,
then taking apart of both Side Cases if
necessary (Refer to procedure 4)
3.
If the Drive Pulley swings and causes
rubbing noises, then take apart both
Side Cases and Round Disk and use
Phillips head screwdriver to release
16pcs of 5x16m/m tapping screws with
1/4"x19m/m flat washers, which are on
the Crank Round Disk. Check the
Crank Round Disk on the level for
warp. The standard for warp is that the
swing /- 3 mm. The warp can
sometimes be corrected by force.
1
2
