ECHNICAL INFORMATION
PRODUCT
P 1/ 7
T
Models No.
Description
6271D
L
12V Cordless Driver Drill 10mm (3/8")
CONCEPT AND MAIN APPLICATIONS
Model 6271D has been developed as the successor model of 6270D, featuring:
Single sleeve keyless drill chuck for easy bit installation/removal
New tool design
H
Model 6271D is available in the following variations.
Battery
type
Rechargeable Plastic carrying
Battery
cover
Model No.
Charger
No
W
quantity
flashlight
case
Dimensions: mm (")
6271DZ
No
---
1
No
1
No
No
Length (L) 192 (7-9/16)
Width (W) 95 (3-3/4)
6271DW
No
1220
(Ni-Cd 1.3Ah)
DC1414
Yes
Yes
6271DWE
6271DWLE
6271DWPE
6271DWPLE
2
2
2
2
2
2
2
2
Height (H)
240 (9-1/2)
ML120
No
PA12
(Ni-Cd 1.3Ah)
DC1414
DC1414
DC1414
ML120
6271DWAE
No
1222
(Ni-Cd 2.0Ah)
Yes
Yes
6271DWALE
ML120
6271DWDE
No
1234
(Ni-MH 2.6Ah)
6271DWDLE
ML120
Also, the models include the accessory listed in "Standard equipment".
Specification
Voltage: V
12
Battery Capacity: Ah
1.3/ 2.0/ 2.6
Cell
Max output: W
Ni-Cd/ Ni-Cd/ Ni-MH
165
High
Low
0 - 1,300
No load speed:
min-1=rpm
0 - 400
Capacity of drill chuck: mm (")
0.8 - 10 (1/32 - 3/8)
Steel
10 (3/8)
25 (1)
Capacity: mm (")
Wood
Torque setting
16 stage + drill mode
Clutch torque setting: N.m (in.lbs)
Lock torque: N.m (in.lbs)
1.0 - 4.0 (9 - 35)
28 (250)
Hard joint
Soft joint
30 (260)
Max. fastening
torque: N.m (in.lbs)
18 (160)
Yes
Electric brake
Mechanical speed control
Variable speed control
Yes (2 speed)
Yes
Reverse switch
Yes
Net weight [with Battery 1220]: kg (lbs)
1.5 (3.3)
Standard equipment
+- Bit 2-65 (double-end) ........ 1 pc
Note: The standard equipment for the tool shown above may differ by country.
Optional accessories
Drill bits for wood
Drill bits for steel
Driver bits
Battery 1220 Battery 1234 Battery 1235A Charger DC1414 Fast charger DC1439
Battery 1222 Battery 1235 Battery PA12 Charger DC1804 Automotive charger DC1822
P 3/ 7
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Gear Ass’y, DC Motor
DISASSEMBLING
(1) Remove Keyless drill chuck.
(2) Gear ass’y and DC Motor can be disassembled in the order of Figs. 3, 4, 5, 6 and 7.
Fig. 3
Fig. 4
Gear ass’y
Housing set (R)
3x16 Tapping
screw (9pcs.)
Speed change lever ass’y
DC motor
Housing set (L)
Housing set (L)
Remove Gear ass’y, Speed change lever ass’y and
DC motor with Switch from Housing set (L) as
illustrated above.
Disassemble Housing set (R) by unscrewing
3x16 Tapping screws (9 pcs.).
Fig. 5
Fig. 6
Gear ass’y
DC motor
notch of Speed
change lever
ass’y
protrusion of
Gear ass’y
Motor bracket
Pull off Gear ass’y while turning
it clockwise viewed from DC
motor side.
Remove Speed change
lever ass’y from Gear
ass’y.
Now Gear ass’y can be replaced.
Fig. 7
M3x6 Pan head
screw (2pcs.)
Motor bracket
DC motor
Remove DC motor from Motor
bracket by unscrewing M3x6
Pan head screws (2pcs.).
Now DC motor can be replaced.
P 4/ 7
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Gear Assembly, DC Motor
ASSEMBLING
The following portions of DC motor, Motor bracket and Gear ass’y have to face the same side. (Fig. 8)
* Red point mark (designated as plus terminal) on DC Motor
* None of protrusion side of Motor bracket
* Gear assembly’s protrusion
Fig. 8
protrusion of Gear ass’y
none of protrusion
side
red point mark
on DC motor
Motor bracket
Gear ass’y
Do not face the protrusion of
Motor bracket to the protrusion
of Gear ass’y and the red
DC motor
point mark on DC motor.
[3]-3. Speed Change Lever
ASSEMBLING
(1) When assembling Speed change lever ass’y, make sure two Compression springs are assembled to its bottom
in advance. (Fig. 9)
(2) Fit the protrusion of Gear ass’y into Compression spring 4 in Speed change lever ass’y . (Fig. 10)
(3) After mounting, set Speed change lever ass’y to low speed mode or high speed mode. (Fig. 11)
Fig. 10
Fig. 9
Compression
spring 4 (2pcs.)
protrusion of Gear ass’y
Speed change lever
ass’y
Fig. 11
1: Low speed mode
2: High speed mode
Speed change
lever ass’y
Slide Speed change lever to either of
the direction designated in arrow, and hold
the position.
P 5/ 7
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Leaf Spring
ASSEMBLING
Before assembling Gear ass’y and DC motor, Leaf spring has to be mounted to Housing set (L) as illustrated in Fig. 12.
Fig. 12
Housing set (L)
Leaf spring
Leaf spring
[3]-5. F/R Change Lever
ASSEMBLING
F/R Change lever can be assembled to Switch as illustrated in Fig. 13.
Fig. 13
Now F/R change lever is
mounted to Switch.
Fit the protrusion of Switch to the prong
of F/R Change lever.
Prong
Protrusion
F/R Change lever
protrusion
F/R Change Lever
Switch
Switch
P 6/ 7
Circuit diagram
Fig. D-1
Connecting of Lead Wire (red)
to DC Motor
Color index of lead wires' sheath
Black
Red
red point mark
Connect Lead Wire (red) to
the Terminal marked with
red point mark.
DC Motor
Switch viewed from
Housing set (L) side
Switch viewed from
Housing set (R) side
M2
M1
Switch
Switch
Lead wires of DC Motor are connected
to Switch as follows.
* Lead wire (red): to Terminal “M1”
* Lead wire (black): to Terminal “M2”
Battery holder
The terminal of this
protruded side is plus.
Housing set (R) side
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Wiring diagram
Fig. D-2
Housing set (L)
Rear view of
Housing set (L)
Red point
mark
DC Motor
DC Motor has to be so
assembled to Housing set (L)
that its Red point mark
is positioned on the back
bone side of the machine.
Switchs’ Lead wires (black, red)
have to be fixed with Lead wire
holder.
Switch’s lead
wire (black)
Switch’s lead
wire (red)
Battery holder
Rear side
Front side
Fig. D-2A.
Switch’s Lead
wire (black)
Battery holder
Connect Switch’s Lead wire (black) to
Battery holder while facing it to rear side.
Switch’s Lead
wire (red)
Rear side
Front side
This protruded Side is fitted
to Housing set (R).
Connect Switch’s Lead wire (red) to
Battery holder while facing it to front side.
Housing set (R) Side
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