Maintenance - EFA SK18 WB Betriebsanleitung

Turn the screw in MINUS direction until the saw
is hanging freely in equilibrium (with the spring
balancer) at working height.
If the saw cannot be pulled out, the spring balancer
is jammed and a readjustment is necessary:
Turn the screw in PLUS direction until the saw
can be pulled out and start the fine adjustment
again (see above).
Malfunction
Turn on switch (31), the motor
does not start
Turn on switch (31), the motor
starts,
motor becomes hot, saw
blade running
Turn on switch (31), the motor
is blocked
Turn on switch (31), the motor
starts, saw blade does not run
Saw blade does not come to a
standstill within 3 seconds
Schmid & Wezel
D 75433 Maulbronn

5. Maintenance

Malfunctions may occur during operation, but these
are generally relatively simple to remedy. Table 2:
Troubleshooting lists these malfunctions with possi-
ble causes and resulting potential remedies.
Table 2: Troubleshooting
Possible cause
1. Connection to works mains defec-
tive
2. Circuit breaker of works mains
FAULT
3. Switch (31) defective or connec-
tion loose
4. Core in lead (22) broken or defec-
tive
5. Fuse (42) defective
6. Field winding (2) or armature (5)
defective
7. Carbon brushes (15) worn
8. Ventilation slots in motor housing
(1) or intermediate flange (9) are clo-
sed/clogged
9. Fan on armature (5) broken
10. Field winding (2) or armature (5)
defective
11. Fan on armature (5) broken
11. Fan on armature (5) broken
12. Pinion (8) broken
13. O-rings (82) worn
Ring gear runs with drive.
14. Brake electronics (20) defective
Seite/ Page
17/ 27
Remedy
Inspect the connection and
repair, as necessary
Inspect the circuit breaker, switch
on again or replace
Check contacts and connection,
replace switch if necessary
Inspect lead (22) and replace, if
necessary
Inspect, replace if necessary
Inspect, replace if necessary
Inspect, replace if necessary (see
chapter 4.4)
Clean and open ventilation slots
again, then clean the motor (e.g.
air)
Replace the complete armature
(5),
the fan is not available as a spare
part
Inspect, replace if necessary
Replace the complete armature
(5),
the fan is not available as a spare
part
Inspect, replace if necessary
Inspect, replace if necessary
Inspect, replace if necessary
Inspect, replace if necessary
Ausführung/ Version
05.2007