Scheppach Precisa 4.0 Operating Instructions Manual page 32

Trouble shooting plan
Fault
Height adjustment too
tight
Angle adjustment too
tight
Workpiece jams
between saw blade
and longitudinal fence
Burn marks on the cut
surface
90°/45° position of
saw blade is not
accurate
Motor will not start
Three-phase
motorturning in wrong
direction
Single-phase /
three-phase motor
producing no power
Cutting power drops
at full motor speed
Splitting wedge not
flush with saw blade
32 | GB
Possible cause
Threaded spindie contaminated with sawdust
Tooth segments and toothed rack dirty
Longitudinal fence not running parallel to saw
blade
a) saw blade is blunt
b) longitudinal fence not running parallel to
saw blade
c) wrong saw blade
Hexagon screws shifted on tooth segment
a) mains fuse blown
b) extension cable defective
c) saw blade jammed
d) motor or switch connections not ok
e) motor or switch defective
f) motor switches off automatically when
overloaded
g) Capacitor defective
Mains plug leads wrongly connected
a) running on two phases
b) extension cable too long, cable cross
section too small
Belt loose
Wrong splitting wedge setting
Remedy
Clean threaded spindie and treatwith dry
lubricant spray.
Clean tooth segments and toothed rack and
treat with dry lubricant spray
Check longitudinal fence setting and
readjust.
a) change saw blade.
b) Check and readjust longitudinal fence
setting
c) use a saw blade for longitudinal or cross
cuts
Readjust hexagon screws on tooth segment
a) check mains fuse
b) check extension cable, do not continue to
use defective cable but have it repaired
professionally.
c) open cover of protective box and
eliminate cause of faults
d) have checked tiy qualified technican
e) replace motor or switch, see electrical
connection
f) let motor cool down (for as long as it
takes) and switch back on
g) Have capacitor replaced by a skilIed
mechanic
Swap terminals in wall socket
a) check mains fuses
b) see electrical connection
Tighten belt
Readjust splitting wedge