EFA SB 287 E Betriebsanleitung, Wartungsanleitung, Ersatzteilliste Seite 22

Malfunction/fault
1. Saw fails to start when
switch is pressed
(saw failure)
2. Saw fails to start when
switch is pressed (fault
detection control system)
3. Saw starts when switch is
actuated, but runs without
power
4. Saw sometimes fails to
start when switch is
actuated or starts/shuts
down with a delay
Schmid & Wezel
D 75433 Maulbronn
Table 1: Troubleshooting
Possible cause
Power cable break
Microswitch (6) defective
Front/rear cover not properly
closed, or not in proper position
Defective motor switch
Power supply line not properly
connected to terminals
Motor winding defective
Check electrical connection of
microswitch (6) at front operating
lever on terminal
Cables loose at the terminal
Contactor defective (description
K1/K2)
Power line cross-section or
lengths too small
Voltage drop in supply network
Saw band insufficiently tightened
Contactor defective (description
K1/K2)
Cables loose at the terminal
Page / Seite
21 / 39
Remedy
Check terminal assignment of control
system for electric conductivity:
a) Terminals UVW or 1, 2, 3
motor connection)
b) Terminal no.: 3 - 4
(2. Handle)
Terminal no.: 5 - 6 (motor switch and
safety cover)
Check switch; replace, if necessary
Check covers and close to establish
contact
Check switch; replace, if necessary
Check terminals and reconnect/
retighten
Dismantle motor, check winding;
replace, if necessary
Reconnect or replace cable or
microswitch
Check terminals and eliminate
problem
Check contactor and replace, if
necessary (Prod. no. 001604193 for
42V, prod. no. 001604189 for 400V
saw)
Check dimensions according to
Appendix A.3.4
"Leitungsquerschnitte/ Cross-
sections of lines" (page 16) and
change, if necessary
Establish cause of voltage drop and
eliminate it (if required, use Schmid
and Wezel testing equipment)
Retighten with a torque wrench
Check contactor; replace, if
necessary (Prod. no. 001 604 193 for
42V, prod. no. 001 604 189 for 400V
saw)
Check terminals and eliminate
problem
Version/ Ausführung
(check
c)
09.2012