Tormach 1100M - Cant Load or Unload a Tool, or the Spindles Drawbar Drags against the Power Drawbar Cylinders Piston Bolt

12: TROUBLESHOOTING
©Tormach® 2023
Specifications subject to change without notice.
Page 253 Tormach 1100M® Operator's Manual (Version 1223A)
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12.9.3 Can't Load or Unload a Tool, or the Spindle's Drawbar Drags Against the Power Drawbar Cylinder's Piston
Bolt
Cause:Insufficient shop air pressure.
Probability How-To Steps
High
Examine the shop air pressure, and verify that there's a minimum of 90 psi compressed air at
the machine's FRLFilter-Regulator-Lubricator.
Cause:Power drawbar cylinder piston is out of adjustment range. (For three-stack power drawbar cylinders only.)
Probability How-To Steps
Low
1. Loosen the power drawbar cylinder's jam nut and adjust the piston bolt. Verify that the piston
bolt sits within 0.5 mm (0.020 in.)of the spindle's spring stack when there's no tool loaded in
the spindle.
2. Secure the jam nut.
Cause: The pull stud clamp has loosened from the end of the spindle's drawbar shaft.
Probability How-To Steps
Very Low
1. Use the BT30 Clamping Unit Installation Tool (PN 50385) that was provided either with your
machine or with your upgrade kit to verify that the clamping unit is securely tightened onto the
drawbar shaft. If the clamping unit is loose:
a. Uninstall the clamping unit and inspect it for wear or damage. If you find any damage,
replace it with Clamping Unit, BT30 (PN 39690).
b. Reinstall the clamping unit: apply medium-strength (blue) thread-locking compound to
the threads, and tighten the clamping unit onto the drawbar shaft with the installation
tool.