Scheppach bs 400 Mode D'emploi page 13

TROUBLESHOOTING PLAN
Malfunction
1.
Brake motor has no brake function
2.
Saw blade detaches after switching off the
motor.
3.
Motor does not initiate
4.
Motor runs backwards or forwards
5.
Motor does not perform, switches off
automatically
6.
Burn marks on the intersection
by longitudinal cuts
by cross cuts
7.
Wrong rolling direction by rotary current
motor
14 english
Possible cause
a)
Brake pads are worn
a)
Attachment nuts are not tightened enough
b)
Brake effect of motor is too strong
a)
Breakdown mains fuse
b) Extension cable defect
c)
Connections to the motor or to the switch
are not in order
d)
Motor or switch is defect
t
Condensator defect
Overcharged because of
a)
Blunt saw blade
b) 2 Phase run – Motor becomes hot
a)
Blunt saw blade
b)
Wrong saw blade
c)
Longitudinal end stop not parallel to saw
blade
d)
Slide table not parallel to saw blade
Socket wrongly tapped
Solution
Have brake pads renewed.
Electrical connection works only by a
specialized electronics technician!
a)
Tighten attachment nuts M20 left-hand
thread
b)
Adjust electric current brakes
•
Take out little plug sideways from switch
housing
•
Use small screw driver to adjust carefully
the electric current of the brakes on the
potentiometer
•
After switching off the motor the saw blade
stagnation should take place after 8 - 19
seconds
•
Put the little plug into the switch housing
again
a)
Check mains fuse
b)
See instructions "Electrical connections"
c)
Have it checked by an electronics
technician
d)
See instructions "Electrical connections"
Have it exchanged by an electronics
technician
a)
Put in a sharpened saw blade
b)
Have the extension cable and the main
power supply checked by a specialized
electronics technician
a)
Put in a sharpened saw blade
b)
Put in a saw blade for longitudinal cuts
c)
Re-adjust motor on rocker or exchange
longitudinal end stop
d)
Align slide table to saw blade
Change polarity of socket