MAINTENANCE
2- Lift Index Block “B” straight up to remove.
The head of the Index Assembly Mounting Screw engages the T- Slot in Index Block “B”. This mounting design facilitates height adjustment of the Index Block during reassembly.
FIGURE 71
Before replacing Index Block “B”, ensure that the Index Ring is properly adjusted as explained in Steps 5 - 7 on Page 33.
3- When replacing Index Block “B” it is very important to align the top surface of the Index Block with the top surface of the Index Ring as shown in Figure 72.
The easiest way to accomplish this is to hold a flat block of metal or wood across the top of the Index Ring. While holding the block in place, raise Index Block “B” up to contact the bottom of the align- ment block. Ensure that Block “B” is level and vertically aligned with the Index Ring.
FIGURE 72
4- While holding Index Block “B” in this position, tighten the Index Assembly Mounting Screw by turning it counterclock- wise until tight.
FIGURE 73
36
