Delta 14-650 Instruction Manual page 16

USING BITS WITH EXTRA LONG SHANKS
When using bits with extra long shanks, it will be
necessary to remove the extension (A) Fig. 37. This can be
accomplished by inserting screwdriver into center hole
of motor end cap (B) Fig. 38, and into slot in end of
armature shaft. Then using chuck key, unscrew and
remove chuck (C) Fig. 37, and extension (A). Remove
extension (A) from chuck (C) and replace chuck (C) on
end of motor shaft.
16
A
C
Fig. 37
B
Fig. 38