ERJ190 elec hydraulic pump2 operation logic
On ERJ190, elec hydraulic pump2 has a very special operation logic,
it says :
On ground the elec hydraulic pump 2 will be automatically activated when following condiion occur
1.Eng 1 running and parking brake released
I can understand this no problem.
2.During eng1 start(once N2 reaches 40%) if parking brake has been applied within the last 6 min.
note: the elec hydraulic pump 2 will be automatically turn off after 6 min have elapsed from parking brake application.
Can anyone help me to decode condition 2 ?