Makita 8414D Manual

Models No.
Description
PRODUCT
TECHNICAL INFORMATION
CONCEPT AND MAIN APPLICATIONS
P 1 / 5
8414D/ 8434D/ 8444D
Cordless Percussion-Driver Drills 12V/ 14.4V/ 18V
The above products have been developed as successor models
of the current 8443D series models and as the highest grade
series models among Makita Cordless Percussion-Driver Drills.
Their brief advantages are;
*Powerful motor provides high operation efficiency.
*Mechanical 3-speed;
3rd speed: higher than the predecessors for finishing
light duty jobs with extremely high efficiency
1st speed: lower than the predecessors for extra-heavy
duty applications
*Easy operation mode change
*All the great advantages as Model 8443D series models
Dimensions: mm (")
Width (W)
Height (H)
Length (L)
Model No. 8414D 8434D 8444D
243 (9-9/16) 247 (9-3/4) 252 (9-7/8)
94 (3-11/16)
259 (10-1/4)
94 (3-11/16) 95 (3-3/4)
8414D
8434D
8414DWAE 1222 (Ni-Cd 2.0Ah)
8414DWAE3 1222 (Ni-Cd 2.0Ah)
8414DWALE ML120
ML120
1222 (Ni-Cd 2.0Ah)
8414DWDE DC1414 1234 (Ni-MH 2.6Ah)
8414DWDE3 1234 (Ni-MH 2.6Ah)
8414DWDLE
8414DWFE
8414DWFE3
1234 (Ni-MH 2.6Ah)
1235 (Ni-MH 3.0Ah)
1235 (Ni-MH 3.0Ah)
Model No. type Quantity
Quantity
Quantity
Battery cover
(quantity)
Battery cover
(quantity)
Charger Flash light
w/o light
w/o light
w/o light
8434DWAE 1422 (Ni-Cd 2.0Ah)
8434DWAE3 1422 (Ni-Cd 2.0Ah)
8434DWALE ML140
ML140
1422 (Ni-Cd 2.0Ah)
8434DWDE DC1414 1434 (Ni-MH 2.6Ah)
8434DWDE3 1434 (Ni-MH 2.6Ah)
8434DWDLE
8434DWFE
8434DWFE3
1434 (Ni-MH 2.6Ah)
1435 (Ni-MH 3.0Ah)
1435 (Ni-MH 3.0Ah)
Model No. Charger Flash light
8444D
8444DWAE 1822 (Ni-Cd 2.0Ah)
8444DWAE3 1822 (Ni-Cd 2.0Ah)
8444DWALE ML180
ML180
1822 (Ni-Cd 2.0Ah)
8444DWDE DC1804 1834 (Ni-MH 2.6Ah
8444DWDE3 1834 (Ni-MH 2.6Ah)
8444DWDLE
8444DWFE
8444DWFE3
1834 (Ni-MH 2.6Ah)
1835 (Ni-MH 3.0Ah)
1835 (Ni-MH 3.0Ah)
Model No. Charger Flash light
2
2
2
2
2
3
3
3
2
2
2
2
2
3
3
3
2
2
2
2
2
3
3
3
w/o light
w/o light
w/o light
w/o light
w/o light
w/o light
2
3
3
3
2
2
2
2
2
3
3
3
2
2
2
2
2
3
3
3
2
2
2
2
These new products are available in the following variations:
Battery
type
Battery
Battery cover
(quantity)
type
Battery
L
H
W

P 2 / 5
Specification
Model No.
Hard joint
Soft joint
Steel
Wood
Fastening torque:
N.m (ft.lbs)
Drilling capacity:
mm (")
Net weight: kg (lbs)
[includes battery]
No load speed:
min.-1=rpm
Battery
Voltage: V
Capacity: Ah/ Cell
Capacity: mm (")
3rd (Heighest)
2nd (High)
1st (Low)
8414D 8434D 8444D
12V
210
0 - 1,700
0 - 600
0 - 300
0 - 1,600
0 - 550
0 - 300
Blows per minute:
min.-1=bpm
3rd (Heighest)
2nd (High)
1st (Low)
0 - 25,500
0 - 9,000
0 - 4,500
0 - 24,000
0 - 8,250
0 - 4,500
1.5 -13 (1/16 - 1/2)
13 (1/2)
2.4 (5.3) 2.5 (5.5) 2.7 (6.0)
45 (1-3/4)
13 (1/2)
50 (2)
13 (1/2)
Concrete 13 (1/2) 14 (9/16) 16 (5/8)
65 (2-9/16 )
18V
310
14.4V
250
65 (47.9)
31 (22.8)
70 (51.6)
32 (23.6)
80 (59.0)
40 (25.7)
Drill chuck
Max. out put: W
Electric brake
Reverse switch
(for all variations listed in page 1)
Philips bit 2-45 .................................. 2
Grip assembly .................................. 1
Depth gauge ..................................... 1
Battery cover ..................................... For quantity, see the variation list in page 1.
Torque adjustment
Type Keyless, Single sleeve
2.0/ Ni-Cd
2.6/ Ni-MH
3.0/ Ni-MH
2.0/ Ni-Cd
2.6/ Ni-MH
3.0/ Ni-MH
2.0/ Ni-Cd
2.6/ Ni-MH
3.0/ Ni-MH
Yes
Yes
Variable speed control Yes
Yes
Standard equipment
Optional accessories
Note: The standard equipment for the tool shown above may differ from country to country.
For all models
*Assorted drill bits for
wood and steel
*Assorted driver bits
For 8414D
Battery 1220
Battery 1222
Battery 1234
Battery 1235
Battery 1235A
Battery 1235F
Charger DC1414
Charger DC1439
Charger DC1804
Automotive Charger DC1422
Automotive Charger DC1822
For 8434D
Battery 1420
Battery 1422
Battery 1434
Battery 1435
Battery 1435F
Charger DC1414
Charger DC1439
Charger DC1804
Automotive Charger DC1422
Automotive Charger DC1822
For 8444D
Battery 1822
Battery 1834
Battery 1835
Battery 1835F
Charger DC1804
Automotive Charger DC1822

P 3 / 5
Hex wrench
[1] -1. 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)
When replacing Gear assembly, remove Drill chuck first as described below.
(When replacing only Housing, you need not remove Drill chuck.)
Fig. 1
Fig. 4
Fig. 2
Hex wrench
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.
Spindle can be deformed by the shock to
hex wrench.
Work table
[CORRECT] [WRONG]
Drill chuck
REMOVAL
Speed change lever
Action mode
change lever
[WRONG]
Fig. 3
Repair
[1] DISASSEMBLY/ ASSEMBLY

P 4 / 5
[1] -1. Drill Chuck (cont.)
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.
[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. 5 Fig. 6
INSTALLATION
Flat washer 13
Hex wrench
Compression spring
Fig. 7
Leaf spring
Change lever
Repair
Push in R/F
change lever
for the forward
rotation mode.
Projection for
speed change lever
installation
Fig. 8
Change lever
Gear assembly

Circuit diagram
Wiring diagram
P 5 / 5
Color index of lead wires' sheath
Black
Red
Holder
Spring terminal
Endbell complete
Switch
Rib B
Route lead wires
between rib B
and the inside wall
of Housing.
Rib A
Boss A
Route the connect lead wires
(red and black) of endbell complete
between rib A and boss A.
Do not put the lead wire (red)
on the boss A.
Receptacle