JSK-120 V1.0 05/21
Page 4
©4QD Ltd www.4qd.co.uk
6. Reassembly
1. Insert the M4 handle retaining screw into the handle and place the handle
face down. Drop the serrated washer onto the part of the screw still visible.
2. Place the spring into its hole and position the ball bearing on top.
3. Apply silicon grease to the bearing surfaces of the drum and insert it into
the collar with the grub screw aligning with the hole. Insert an allen key
through the hole into the grub screw.
4. Place the collar and drum assembly onto the handle.
5. Carefully pick up all three parts and tighten the handle retaining screw.
6. Insert the sensor shaft into the drum, the wires should be at the top,
nearest to the grub screw, the shaft flat should align with the grub screw.
7. Fit the sensor holding screws and then gently tighten the grub screw.