Dormakaba ED900 - ED900 Brake Maintenance

97
ED900 02-202008125330
dormakaba ED900 Installation Instructions – Double egress door Chapter 32
. ED brake maintenance
Fig. 32.7.1 ED900 operator
Fig. 32.7.3 Brake assembly
1 Brake assembly
2 Brake disc
assembly
3 M3 x 3 set screw
4 Brake motor
flange
6 M3 x 5 SHCS
1 Brake assembly
.. Adjustment of air gap:
brake to brake disc (Fig. ..).
TIPS AND RECOMMENDATIONS
Reference drawing:
254197-01-50
WARNING
Set program switch to CLOSE
before performing maintenance!
CAUTION
Air gap setting between brake and
brake disc:
. mm to . mm
(." to .")
. Using . mm hex key, loosen three
M x  set screws securing brake disc to
motor shaft.
. Insert feeler gauge [air gap setting for
sizing] between brake disc and brake.
. Move brake disc against shim(s).
. Screw M x  set screws against motor
shaft but do not tighten.
. Remove feeler gauge.
. Tighten M x  set screws.
CAUTION
M x SHCS torque setting:
. in-lb + . in-lb [. Nm +. Nm].
TIPS AND RECOMMENDATIONS
Paper stock thickness:
approximately 0.003"
1
2
3
4
6
6
3
Y
Y
Air gap
3
2
1
Fig. 32.7.2 Brake to brake disc air gap
1 Brake assembly
2 Brake disc
assembly
Fig. 32.7.4 Feeler gauge set
3 M3 x 3 SHCS
1