INDEX TO PARTS, FIGURE 10 Reference Number 1 2 4 6 7 8 9 10 11 12 13 14 15 16 17 Functional Item Reference  Functional Item Group Name Number Group Name 3 5 6700 6700 6700 6700 6700 6700 6700 6700 6700 6700 6703 6702 6700 6700 6700 6700 6700 COVER SCREW KNOB PIN AXLE U STANDARD PIN PIN SCREW PLATE HOUSING PRISM PLATE LEVER PLATE SCREW PIN 18 19 20 21 22 23 24 25 26 27 2$ 29 30 31 32 33 34 6700 6700 6700 6700 6700 6702 6700 6700 6700 6702 6702 6700 6700 6700 6700 6700 6700 BEARING SCREW SCREW BRACKET SCREW PRISM PIN BEARING SCREW MOUNT PRISM SPRING SCREW SLEEVE SCREW SLEEVE SETSCREW 80