INSTALL THE BT30 SPINDLE AND ALIGN THE ENCODER
3. Disassemble the BT30 spindle:
a. Use a 4 mm hex wrench to prevent rotation of the drawbar shaft.
Figure 21: Preventing the drawbar shaft from rotating.
b. From the top of the drawbar, remove the jam nut with a 19 mm open-ended wrench and remove the disc
spring compression nut with a 25 mm open-ended wrench. Some drawbar assemblies also include a
number of shim washers beneath the disc spring compression nut. If your spindle includes these, save
them and reinstall them in the same location in Step 22.
Figure 22: Jam nut and disc spring compression nut removed from the drawbar.
Page 23
©Tormach® 2021
Specifications subject to change without notice.
tormach.com
TD10705: Installation Guide: BT30 Spindle Upgrade Kit for 1100M+ (0521A)
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