Lifting and Mounting

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TABLE THRUST: (Section A-A, C-C and the top view)
To check to see if this adjustment is necessary, attempt to pass a .001” feeler gauge between the table and base track. The feeler gauge should not pass between the two members. If it does, proceed with the    following steps:

  1. Remove the rotary table from the machine.
  2. Remove limit switch No. 55 from the table by removing the (2) socket head cap screws No. 75. Leave the switch attached to the motor enclosure lid.
  3. Remove (3) button head screws No. 70 in pulley cover No. 9.
  4. Remove pulley cover No. 9. (This may be difficult due to the silicone sealant).
  5. Remove (4) flange hex nuts No. 62.
  6. Remove timing belt No. 47 by moving the motor assembly in toward the back of the rotary table to allow enough slack in the timing belt to remove it from the pulleys.
  7. Remove motor and cover assembly No. 31 and 8 from plate No. 6.
  8. Remove (8) socket head cap screws No. 67, and remove clamp cap No. 13 from the table after marking its position. (Because of the quad rings, it may be difficult to remove). Rock the clamp cap back and forth to remove it. (Do not try to pry the clamp cap out of the base).
  9. Remove clamp disk No. 12.  Rock the clamp disk back and forth to remove it. (Do not try to pry the clamp out of the base).
  10. Loosen (2) socket set screws No. 66, in nut No. 10. Snug up nut No. 10 by turning it slightly clockwise. (There should be no clearance    between the turntable and the base. This can be checked by attempting to put a .001” feeler gauge between the turntable No. 1 and Turcite bearing No. 42. The feeler gauge should not penetrate between the two members). Rotate pulley No. 44 to make sure that the table can be rotated without a lot of force.
  11. After nut No. 10 has been adjusted, securely tighten the (2) socket set screws No. 66. Clean clamp disk No. 12 and clamp cap No. 13. Inspect quad rings No. 38 and 39, and replace if needed. Lubricate the quad rings before re-assembling the unit. Use anti-rust lubricant on clamp pins No. 14, and quad rings No. 38 and 39. Replace the socket head cap screws No. 67. (Use Locktite to keep the screws from backing out).
  12. Replace motor and cover assembly No’s. 8 and 31.
  13. Replace timing belt No. 47 and (4) flange hex nuts No. 62. The timing belt should have a slight amount of flexibility. (In general, you should be able to rotate the belt 90 degrees from the standard mounting position without a lot of pressure).
  14. Replace cover No. 9 and (3) button head cap screws No. 70.
  15. Replace limit switch No. 55 and (2) socket head cap screws No. 75.


These instructions should be followed carefully, as improper meshing between the wormshaft and wormwheel may cause damage. The dual lead backlash adjustment is a linear adjustment of the bracket cartridge and      wormshaft assembly resulting in more or less backlash. The bracket cartridges and wormshaft assembly are on fixed bores in the base. The wormshaft has a true lead flank and a false lead flank resulting in the      distance between the teeth to decrease in width allowing the wormshaft to mesh tighter to the wormwheel teeth when the linear adjustment is made in the proper direction.