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• Set Push Out:
• Engage the TRP (Tool Release Piston) so that the drawbar is in the unclamped position
• With the TRP engaged, use a depth gauge to measure the distance between the face of the clamping cone and the face of the spindle [1]
  • NTE (not to exceed) [0.41 in +/- 0.004 in] OR [10.5 mm +/- 0.1mm]
  • NOTE: For H-5AX HSK A63 spindles the push out distance is NTE (not to exceed) [0.417 in +.003/- 0 in] OR [10.59 mm +/- 0 mm]
• If the push out is not within the above specification do the following:
• Loosen the locking screw only 1-2 turns   
  • Note: backing out the locking screw too much can damage the spindle 
• Unscrew or tighten the clamping cone to adjust the push out distance measured
• Once set snug the locking screw using a 24mm wrench on the flats of the clamping cone and a 5mm hex bit

• Torque Locking Screw:
• Insert a hollow HSK-A63 tool holder without a collet to the spindle - this will prevent the drawbar from rotating while you torque the locking screw
  •  Use a long 5mm hex bit that will reach through the tool holder and a collet spanner wrench on the tool holder to prevent it from rotating
• Torque the locking screw to 20 Ft-lbs  (27 N-m)
• Check clamp force 2,835 - 4,050 lbs
  
  • Note: A new unit should be near 4,050 lbs, but if you are simply replacing it after cleaning, slightly lower force is acceptable
    
  • Once the force drops below 70% of max (2,835 lbs) is when the unit needs to either be re-greased, cleaned, inspected for damage, or have the drawbar inspected for damage as well.
• To achieve clamp force the clamping unit must be thoroughly greased, the drawbar must not have broken springs, the gripper segments must not be broken, and the spacer unit and gripper segments must not be worn

Place a tool in the spindle and verify it is seated correctly. A correctly installed tool has no gap and is seated flush to the spindle [1].

Remove the spindle head cover to gain access to the clamp switch.

Loosen the (2) screws [1] that hold the Clamp switch block [2] to the TRP.

Slowly slide the block [2] and sensor towards the spindle until the sensor [3] turns ON (becomes red).

Then lightly tighten the (2) screws [1].