Makita 8414D Technical Information page 4

R
epair
[1] -1. Drill Chuck (cont.)
INSTALLATION
1) Make sure that Flat washer 13 is mounted to Spindle before installing Drill chuck. (Fig. 5)
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. Push in F/R change lever for the forward rotation mode. (Fig. 6)
Secure the short arm of a hex wrench in the chuck jaws, and the long arm in vise. Hold the grip of the machine firmly
so that your hand cannot be pulled away by reaction torque. And then tighten Spindle into Drill chuck by pulling the
trigger of Switch until Spindle is locked. (Fig. 6)
Note: Release the trigger of Switch just after Spindle is locked. Do not keep on pulling the trigger for longer than
one second.
3) Fasten Drill chuck to Spindle with the chuck screw (M6x22 (-) Flat head screw) by turning it counterclockwise.
If you reuse a screw removed from Drill chuck, apply an appropriate amount of adhesive (ThreeBond 1321B/ 1342 or
Loctite 242) to the screw for secure fastening.
Fig. 5
[1] -2. Installing Speed Change Lever
1) Before installing Speed change lever on Gear assembly, make sure that;
a. Two Leaf springs are installed to Speed change lever as illustrated to left in Fig. 7.
b. Two compression springs are installed to speed change lever as illustrated to right in Fig. 7.
2) Assemble Speed change lever to the projection on Gear assembly. (Fig. 8)
Fig. 7
Leaf spring
Change lever
Fig. 6
Flat washer 13
Push in R/F
change lever
for the forward
rotation mode.
Compression spring
Fig. 8
Gear assembly
P 4 / 5
Hex wrench
Change lever
Projection for
speed change lever
installation