Overview – Chuck Extension
Do you need it
The 701 Mortiser comes with the chuck already assembled at the factory, intended to be used with augers having long shanks. Augers come with long or short shanks (Figure 4) depending on the manufacturer.
Long shank augers
If you plan to install an auger with a long shank, you can skip this section and proceed to the Installing Chisel and Auger section on page 10.
Short shank augers
If you plan to install an auger with a short shank, proceed to Installing the Chuck Extension section.
Figure 4
Installing the Chuck Extension
Referring to Figure 4, remove the chuck from the motor shaft as follows:
1.Open door (A).
2.Unscrew and remove the chuck (B) from the motor shaft (C) using a 12mm wrench placed on the flat indents of the shaft (C) and the chuck key in the chuck (B).
3.Thread the chuck extension (D) onto the motor shaft (C).
4.Tighten using 12mm and 14mm wrenches respectively on flat sides of the motor shaft (C) and chuck extension (D).
5.Thread the chuck (B) onto the chuck extension (D).
6.Tighten using a 14mm wrench on flat sides of the chuck extension (D) and the chuck key in the chuck (B).
Figure 5
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