Hi Yannick
Haulotte sees two problems: one is a cosmetic and the other is too many broken strands changing the resistance of the cable.
The proposed fixed is OK, but with some questions:
1. Will you be doing this on both ends of the cable?
2. Send a demo cable with a terminal on each end showing how the heat shrink will look.
Once the sample is reviewed, Haulotte will sign-off on the corrective action.