Master PBS 120 Operating Instructions Manual page 18

Fault/malfunction Cause
Motor fails to start Motor, power cable or plug defec-
tive.
Cut-out in switch cabinet triggered.
Power failure.
Thermal cut-out of motor triggered.
Triggering of thermal Motor overheated
cut-out
Overload of motor due to excessive
cutting pressure.
Motor damaged
Inaccurate cutting Check the position of stops 22 and
angle at 0°and 60° 24 and adjust, if necessary (see
fig. IV).
Inaccurate cutting Stud 23 incorrectly set (see fig. IV).
angle at 45°
Inaccurate cut at right Excessive cutting pressure.
angles
Tooth pitch of saw band unsuitable
for workpiece.
Cutting speed unsuitable for work-
piece.
Incorrect saw band guide settings.
Workpiece not tightly clamped.
Rough or irregular Saw band worn or tooth pitch unsuit-
cutting edge able for workpiece thickness.
Excessive cutting pressure.
The saw band slides Eccentric saw band guides set incor-
easily from its guides. rectly.
Rubber coating of rollers worn.
Saw blade slips at the roller, due to
cutting oil or grease.
18
Troubleshooting
Remedy
Have the saw examined and repaired by an
authorised electrician.
Check cut-out and reset.
Check voltage of mains supply.
Release the switch 6 and wait until the cut-out
is automatically reset (this may take several
minutes).
Check whether the ventilation slots of the motor
are blocked and clean them, if necessary.
Reduce cutting pressure.
Have the saw examined and repaired by an
authorised electrician.
Readjust stops. Release securing bolts and
realign stops.
Loosen lock nut and readjust stud 23. Retighten
lock nut.
Reduce cutting pressure.
Check cutting parameters and adjust with refer-
ence to the cutting table (fig. VIII).
Check cutting parameters and adjust with refer-
ence to the cutting table (fig. VIII).
Check settings and adjust them, if necessary.
Check workpiece clamping and adjust it, if
necessary.
Check cutting parameters and adjust it with
reference to the cutting table (fig. VIII).
Reduce cutting pressure.
Check settings and adjust them, if necessary.
Have rollers examined by specialist technician
and have them replaced, if necessary.
Never use cooling lubricant or other coolants
for cutting. Have rollers examined by specialist
technician and have them replaced, if neces-
sary.