Siemens UL 1066 Operating Instructions Manual page 240

Field installation
Hazardous voltage.
Will cause death, serious personal injury, or equipment damage.
Turn off and lock out all power supplying this device before working on this device.
High speed moving parts.
Can cause serious personal injury.
Discharge the closing spring before inspection and before carrying out any work on the circuit breaker.
- Open the circuit breaker and discharge the closing spring
- Remove front panel
Knock out
1
Then:
 (page 23-4)
- Install front panel
15 – 21
DANGER
WARNING
 (page
23-4).
Padlock Locking device
Locking device for spring charging lever
 (page 23-2)
2
Catalog No.
WLHANDLC