Volvo EW145B quick fit does not open

[Shahidsolangi49]

Need help in finding a problem!
There are no voltages on quick fit right hand switch but all fuses are okay.
I gave main from another switch after that quick fit opened and I-ECU gave option that quick fit is in open position.
I have machine EW145B Model 2007.
I have faced same problem in several machines but now I wants to diagnose the main issue.

 

[Shahidsolangi49]

Hi, anyone please help me!

 

[uffex]

Good day
What quick fit has been fitted do you know? There are many in the market to give you correct advice, we need to know which device.
Kind regards
Uffex

 

[Shahidsolangi49]

Quick fit which is installed in mostly Volvo wheeled excavator for urgent removal of bucket and hammer.
In relay box R5 and R6 are used for it's function
Thank you for your reply!

 

[uffex]

Good day
Thanks we will have to guess also.Wiring diagram.
Kind regards
Uffex