Drill Chuck - Makita 8414D Technical Information

R
epair
[1] DISASSEMBLY/ ASSEMBLY

[1] -1. Drill Chuck

REMOVAL
When replacing Gear assembly, remove Drill chuck first as described below.
(When replacing only Housing, you need not remove Drill chuck.)
1) After opening the chuck jaws to the full, remove the chuck screw (M6x22 (-) Flat head screw) by turning it clockwise.
Use impact driver drill if it is difficult to remove the screw.
2) Slide Speed change lever to the position of "1" (1st speed), and slide Action mode change lever to the drill mode
as illustrated in Fig. 1.
Secure the short arm of a hex wrench with the chuck jaws. Hold the machine firmly, and then remove Drill chuck
by hitting the long arm of the hex wrench using plastic hammer to turn Drill chuck counterclockwise. (Fig. 2)
Fig. 1
Speed change lever
Note:
This product has "Spindle Lock system".
After hex wrench is secured in Drill chuck, it is impossible to turn the wrench
in order to adjust the position of its long arm. (Fig. 3)
Therefore, make sure that the hex wrench is positioned as illustrated in Fig. 2
before securing it in drill chuck.
Caution:
Place the tool on a work table so that Drill chuck touches the surface of the work table as illustrated to left in Fig. 4.
Failure to follow this instruction can result in deformation of Spindle.
Fig. 4
[CORRECT]
Work table
Action mode
change lever
Drill chuck
Hex wrench
Fig. 2
Fig. 3
[WRONG]
[WRONG]
Spindle can be deformed by the shock to
hex wrench.
P 3 / 5
Hex wrench