ABB RHD Series - Page 16

16 RHD250 to 4000 (Contrac) ELECTRICAL ROTARY ACTUATOR | SEI/RHD250/4000-EN REV. A
… 4 Maintenance
… Motor
Motors with fan on rear shaft end
1
Cover
2
Cover screws
3
Motor
Figure 17: Cover removal
1. Undo the cover screws
2 and remove the cover 1.
1
Split ring pliers
2
Split ring
3
Fan
Figure 18: Split ring removal
2. Use appropriate split ring pliers
1 and removal tool to
remove the split ring
2 and the fan 3.
1
Removal tool
Figure 19: Removal tool
3. Remove the fan.
1
Rear end of motor shaft
2
Brake cover screws
Figure 20: Undo brake cover
4. Undo brake cover screws
2.
1
Sealing ring
2
Brake cover
Figure 21: Remove brake cover
5. Remove brake cover
2.
1
Shrinkable tube
2
Brake screws
Figure 22: Brake (motor series 1)
6. Undo brake screws
2.
7. Open shrinkable tube
1 and disconnect cable.