3M 7684-S-8 manual Constant Force Spring

13.3Wrap ground braid around cable shield wires one complete wrap, trim excess to prevent overlap and secure in place with constant force spring. Wrap spring in same direction as ground braid (Figure 21). Cinch (tighten) the spring after wrapping the final winding.

13.4Select second Scotch® Mastic Strip 2230 from kit and remove white release liners. Apply a second single wrap of mastic over solder block on ground braid and previously applied mastic (Figure 21). Cut off excess.

Constant Force Spring
Shield Wires
Ground Braid	Trim
1 ST Scotch® Mastic Strip 2230
Solder Block	Cable
2 ND Scotch® Mastic Strip 2230
	Wire
	Shield
	Ground Braid Leg

Figure 21

13.5Wrap two highly stretched half-lapped layers of electrical grade vinyl tape around mastic seal, constant force spring and exposed shield wires (Figure 22).

NOTE: Take care not to cover exposed semi-con insulation shield. A minimum of 1" (25 mm) must be exposed.

1 1/2	(38 mm)
Semi-Con
Shield Wires
Constant Force Spring
Two Half-Lapped Layers of Electrical Grade Vinyl Tape
Scotch® Mastic Strip 2230
Vinyl Tape Marker

Figure 22

16 78-8117-0985-2 Rev C