Note: due to the complexity of VD4 mechanism, energy storage spring energy giant, on-site maintenance is important to pay attention to personal safety, particularly in the hands of security!
1. Install the circuit breaker organizations all components in place, especially the energy-storage motor must be installed correctly
2. As shown in the following, the lift the locking block with holding your hands, beside the iron body
the lift the locking block with holding your hands Iron Body
use screwdriver or other tool jack up the locking block
manual operation VD4 OPEN AND CLOSE ONE TIME, then manual stored energy, open operation, finally electrical stored energy