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(2) Hold Spindle (D) [4] with an open-end wrench secured to the vise as shown in Fig. 2. Mount a pipe
onto the hex. bar wrench. Turn the hex. bar wrench counterclockwise to loosen the Drill Chuck [3].
Fig. 2 • Removal of the drill chuck
Hex. bar wrench
(3) This step is only for the keyed chuck.
Secure the tip of the Drill Chuck [3] with the J-78 ring and J-78 ring ass'y (disassembly tools). Then
secure these disassembly tools with a vise to prevent from turning. Fit the J-140 wrench ass'y
(disassembly tool) to Spindle (D) [4], and turn it counterclockwise to loosen the Drill Chuck [3]. (Fig. 3)
Fig. 3 • Removal of the drill chuck
J-78 ring ass'y
Vise
2. Removal of handle cover (B)
(1) Loosen the Screws D4 x 20 [43] and remove Handle Cover (B) [41].
3. Removal of the brush holder
(1) Insert the tip of a small flat-blade screwdriver into the clearance between Housing (B) [35] and Click
Plate [36], and then pry the arm of the Click Plate [36] off as shown in Fig. 4-1.
(2) Lift up the tip of the Spring [39] with a small flat-blade screwdriver to release it from the Carbon Brush
[38], and hitch it on the Brush Holder [44] as shown in Fig 4-2 .Then pull out the Carbon Brush [38]
from the Brush Holder [44].
(3) Remove the Brush Holder [44] from Housing (B) [35].
Turn it counterclockwise.
Pipe
Vise
Open-end wrench
J-78 ring
Drill chuck
-2-
Turn it counterclockwise.
J-140 wrench ass'y
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