DeWalt 869142-00 Berner Mitre Saw Metal Spring For DWS777 DW771/770 BMS777 DWS/DCS777

DeWalt Berner Mitre Saw Metal Spring For DWS777 DW770 DW771 BMS-777 Models 

This spring sits at the rear of the saw and is there to help return the saw back to the upright position after you cut into the material, you would need to replace this as overtime these springs stretch out and will not have the desired function.

Please see below applicable models