technical information - EA Værktøj Engros A/S

T
ECHNICAL INFORMATION
Model No.
Description
PRODUCT
P 1/ 12
BDA341/ BDA351
L
14.4V/18V Cordless Angle Drill 10mm (3/8")
H
CONCEPT AND MAIN APPLICATIONS
Models BDA341 and BDA351 have been developed as the DC version tools
of Model DA3011F, featuring:
Lightweight design obtained by using Li-ion battery as a power unit
High power 4-pole motor for excellent drilling performance
BDA341
Sister tools featuring Keyed drill chuck are also available
as Models BDA340/ BDA350.
(See Technical Information of BDA340/ BDA350 for detailed information.)
BDA351
Dimensions: mm (")
BDA341
BDA351
Length (L)
326 (12-7/8)
Width (W)
79 (3-1/8)
Height (H) 97 (3-13/16) 115 (4-1/2)
These products are available in the following variations.
BDA341
Battery
Battery
Plastic carrying
Charger
type
quantity cover
case
No
--No
No
No
Model No.
BDA341Z
BDA341
BL1430
BDA341RFE
(Li-ion 3.0Ah)
BDA341RF
2
1
1
No
DC18RA
W
Offered to
All countries
North America
All countries except
North America
Yes
BDA351
Battery
Battery
Plastic carrying
Charger
type
quantity cover
case
No
--No
No
No
Model No.
BDA351Z
BDA351
BDA351RFE
BDA351RF
BL1830
(Li-ion 3.0Ah)
2
1
1
No
DC18RA
Offered to
All countries
North America
All countries except
North America
Yes
Specification
Model
Voltage: V
Capacity: Ah
Cell
Max output: W
BDA341
14.4
Battery
No load speed: min-1=rpm
Drill chuck type
Capacity of drill chuck: mm (")
Capacity: mm (")
BDA351
18
3.0
Li-ion
230
280
0 - 1,700
0 - 1,800
Keyless, Single sleeve
1.5 (1/16) - 10 (3/8)
Steel
Wood
10 (3/8)
25 (1)
Yes
Electric brake
Variable speed control
Yes
Reverse switch
Yes
LED job light
Net weight: kg (lbs)
Yes
1.6 (3.5)*
1.7 (3.7)**
Standard equipment
*with Battery BL1430
**with Battery BL1830
Side grip ........... 1 Note: The standard equipment for the tool shown above may differ by country.
Optional accessories
Charger DC24SA (for North America only)
Battery BL1430 (for BDA341)
Charger DC24SC (except for North America) Battery BL1830 (for BDA351)
Drill bits for wood
Drill bits for steel
Fast charger DC18RA
Belt clip
P 2/ 12
Features and benefits
(The image illustrated below is BDA341.)
Ergonomically designed
rubberized soft grip
High power-to-weight ratio
obtained by employing
4-pole motor and Li-ion battery
provides comfortable grip and more control
while minimizing hand fatigue and pain.
4-pole motor delivers high power for
excellent drilling performance.
4-pole motor and Li-ion battery allows for
lightweight tool design.
Powered by 3.0Ah Li-ion battery:
BDA341 by BL1430 (14.4V)
BDA351 by BL1830 (18V)
Durable aluminum gear housing *
Single sleeve
keyless chuck
allows for easy bit
installation/removal
with one hand.
Easy-to-operate large type *
(paddle type) switch trigger
Compact angle head
with a small head height
of 88mm (3-1/2")
allows for easy access to
screws in tight places.
Head height
with variable speed control feature
convenient for screwdriving
LED job light
with afterglow function
On pulling switch trigger,
the light turns on automatically
before motor starts turning;
keeps on illuminating about
12-13 sec. after trigger release.
*
*Same advantage as Model DA3011F
P 3/ 12
Comparison of products
Specification Comparison
Makita
Model No.
Specifications
Voltage: V
Capacity: Ah
Battery
Cell
Charging time:
min. (approx.)
No load speed:
min-1= rpm
Capacities:
mm (")
Wood
Steel
Chuck capacity: mm (")
Center height*3: mm (")
Head height*4: mm (")
Rubberized soft grip
Aluminum gear housing
Switch trigger
LED job light
HITACHI
BDA341/ BDA351
DA3011F
DA312D
DW966K-2
DW960K-2
DN12DY
14.4/ 18
AC
12
14.4
18
3.0
---
2.6
1.7
12
3.0
Li-ion
22
with DC18RA
---
Ni-MH
60
with DC1414
Ni-Cd
Ni-MH
60
27
0 - 1,700/ 0 - 1,800
0 - 2,400
0 - 800
Low: 0 - 400/ Low: 0 - 500/
High: 0 - 1,250 High: 0 - 1,500
0 - 800
25
(1)
10
(3/8)
25
(1)
10
(3/8)
12
(1/2)
10
(3/8)
25
(1)
10
(3/8)
18
(11/16)
10
(3/8)
Keyless
(Dual sleeve)
Keyless
(Dual sleeve)
10
(3/8)
26.5
(1-11/16)
111
(4-3/8)
No
10
(3/8)
23.5
(15/16)
95
(3-3/4)
No
No
No
Multi-grip trigger
Single-finger
No
No
Keyless
(Single sleeve)
Drill chuck
DEWALT
10
(3/8)
23.5
(15/16)
88
(3-1/2)
Yes
Yes
Large type
(Paddle type)
Yes
---
Keyless
Keyless
(Dual sleeve) (Dual sleeve)
10
(3/8)
23.5
(15/16)
93
(3-5/8)
No
10
(3/8)
23
(7/8)
104
(4-1/8)
No
Yes
No
Large type
Single-finger
(Paddle type)
Yes
No
Length
326
(12-7/8)
282
(11-1/8)
324
(12-3/4)
315
(12-3/8)
324
(12-3/4)
305
(12)
Width
79
(3-1/8)
61
(2-3/8)
94
(3-11/16)
78
(3-1/16)
90
(3-1/2)
73
(2-7/8)
Height
97*1/ 115*2
(3-13/16*1/ 4-1/2*2)
93
(3-5/8)
104
(4-1/8)
113
(4-7/16)
140
(5-1/2)
110
(4-5/16)
Net weight: kg (lbs)
1.6*1/ 1.7*2
(3.5*1/ 3.7*2)
1.4
(3.1)
1.4
(3.1)
2.0
(4.4)
2.1
(4.7)
1.5
(3.3)
Standard equipment
Side grip
Side grip
---
---
---
---
Dimensions:
mm (")
*1: with Battery BL1430
*2: with Battery BL1830
*4: Head height
*3: Center height
P 4/ 12
Comparison of products
Performance Comparison
14.4V Model
Models Tested for Comparison:
See the table on right.
Model No.
Capacity of the battery used: Ah
Makita DEWALT HITACHI
BDA341 DW966K-2 DN12DY
3.0
2.4
3.0
Note: 1. The test results depend to a great extent on the hardness of the material, etc.
2. Numbers in the charts below are relative values when the capacities of DEWALT DW966K-2 are indexed at 100.
Wood Drilling (1)
Test conditions: Drilled holes in 38mm thick SPF with 25mm diameter auger bit.
[Work speed]
slow
fast
[Work amount]
(on a single full battery charge)
small
large
Makita BDA341
135
120
DEWALT DW966K-2
(at High speed)
HITACHI DN12DY
100
100
75
0
20
40
60
100
80
100 120
140 160 0
20 40 60 80 100 120 140 160 180 200
Wood Drilling (2)
Test conditions: Drilled holes in 30mm thick melapi with 15mm diameter auger bit.
[Work speed]
slow
fast
Makita BDA341
DEWALT DW966K-2
(at High speed)
HITACHI DN12DY
145
125
100
100
80
0
20
40
[Work amount]
(on a single full battery charge)
small
large
60
120
80
100 120
140 160 0
20 40 60 80 100 120 140 160 180 200
Wood Fastening
Test conditions: Drove 5.1x38mm countersunk head screw into SPF.
[Work speed]
slow
fast
[Work amount]
(on a single full battery charge)
small
large
Makita BDA341
140
120
DEWALT DW966K-2
(at High speed)
HITACHI DN12DY
100
100
75
0
20
40
60
120
80
100 120
140 160 0
20 40 60 80 100 120 140 160 180 200
P 5/ 12
Comparison of products
Performance Comparison
18V Model
Models Tested for Comparison:
See the table on right.
Makita
BDA351
3.0
Model No.
Capacity of the battery used: Ah
DEWALT
DW960K-2
2.4
Note: 1. The test results depend to a great extent on the hardness of the material, etc.
2. Numbers in the charts below are relative values when the capacities of DEWALT DW960K-2 are indexed at 100.
Wood Drilling (1)
Test conditions: Drilled holes in 38mm thick SPF with 25mm diameter auger bit.
[Work speed]
slow
fast
[Work amount]
(on a single full battery charge)
small
large
Makita BDA351
115
125
DEWALT DW960K-2
(at High speed)
100
100
0
20
40
60
80
100 120
140 160 0
20
40
60
80
100 120
140 160
Wood Drilling (2)
Test conditions: Drilled holes in 30mm thick melapi with 15mm diameter auger bit.
[Work speed]
slow
fast
[Work amount]
(on a single full battery charge)
small
large
Makita BDA351
120
110
DEWALT DW960K-2
(at High speed)
100
100
0
20
40
60
80
100 120
140 160 0
20
40
60
80
100 120
140 160
Wood Fastening
Test conditions: Drove 5.1x38mm countersunk head screw into SPF.
[Work speed]
slow
fast
[Work amount]
(on a single full battery charge)
small
large
Makita BDA351
110
110
DEWALT DW960K-2
(at High speed)
100
100
0
20
40
60
80
100 120
140 160 0
20
40
60
80
100 120
140 160
P 6/ 12
Repair
CAUTION: Remove the bit and the battery from the machine for safety before
repair/ maintenance in accordance with the instruction manual!
[1] NECESSARY REPAIRING TOOLS
Code No.
Description
Use for
Bearing setting pipe 23-15.2
Drill chuck extractor
Bearing extractor
Retaining ring S and R pliers
Wrench for Bearing retainer
(with expanded claw distance from
30mm to 36mm)
Adjustable bearing retainer wrench
1R029
1R139
1R269
1R291
1R292
1R316
Assembling Spur gear 29 section to Gear housing
Removing Keyless drill chuck
Removing Ball bearings
Removing Retaining ring S-12
Assembling / Disassembling Bearing retainer 36-43
Assembling / Disassembling Bearing retainer 36-43
[2] LUBRICATION
Apply Makita grease N. No.2 to the following portions designated with the black triangle to protect parts and product
from unusual abrasion.
Item No.
3
5
15
Description
Portion to lubricate
Amount
Spiral bevel gear 9 Teeth portion for smooth engaging with Spiral bevel gear 26
Lock ring
Inside where Lock cam contacts
Armature
Drive end where engages with Spur gear 29
4g
a little
2g
Makita grease N No. 2
Fig. 1
3
Ball bearing 608ZZ
5
Lock cam
Spiral bevel
gear 26
Spur gear 29
15
P 7/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Keyless Drill Chuck
DISASSEMBLING
Remove Keyless drill chuck as illustrated in Figs. 2 and 3. If it is difficult to remove in this way, Keyless drill chuck
can be removed as illustrated in Figs.2A and 3A.
Fig. 2
Fig. 3
1. Hold Hex wrench 8 with Keyless drill chuck.
2. Firmly gripping the body in the near
of Terminal, turn the machine
counterclockwise.
Correct setting of Hex Wrench 8
Clamp the long portion of Hex wrench 8
when using vise.
Hex wrench 8
Hex wrench 8
Vise
Clamp the flat surface
of Hex wrench 8.
Vise
Fig. 2A
Fig. 3A
1. Hold Hex wrench 8
with Keyless drill chuck.
1R139
Gap between
Keyless drill chuck
and Gear housing
2.5mm in thickness
14mm
width groove
Hex wrench 8
1R139 modified
as shown in Fig. 2A
Make the thickness of this portion thin to 2.5mm
by grinding in order to insert 1R139 into the gap
between chuck and Gear housing.
2. Turn Hex wrench 8 counterclockwise by striking
with Hammer.
ASSEMBLING
(1) Do the reverse of the disassembling steps. Refer to Figs. 3 and 2., or Figs. 3A and 2A.
(2) Turn the machine or Hex wrench clockwise to tighten Keyless drill chuck. The fastening torque for Drill chuck is
40 - 45 N.m.
Note: Keyless drill chuck may further turn resisting shaft lock mechanism, while sounding like clutch in work.
This phenomenon does not show any trouble, but Keyless drill chuck is tightened firmly.
P 8 / 12
Repair
[3]-2 Spiral Bevel Gear 26
DISASSEMBLING
(1) Remove Keyless drill chuck as illustrated in Figs. 2 and 3 / Figs. 2A and 3A. And disassemble Bearing retainer as
illustrated in Figs. 4 and 5.
(2) Disassemble Spiral bevel gear 26 in the order of Figs. 6to 10.
Fig. 5
Fig. 4
To fit 1R292 to the notch of Bearing
notch for fitting
retainer, enlarge this width from 30mm 1R292
to 36mm by grinding 1R292.
Remove Bearing retainer 36-43 with 1R292
by turning it clockwise.
1R292
1R292
Clamp the machine
with vise.
Bearing retainer
Bearing retainer 36-43
Fig. 6
Fig. 7
Remove Gear section by striking
the edge of Gear housing.
Spindle
Fig. 8
Remove Bearing box from
Spindle.
Bearing box can be removed
by hand.
Remove Ball bearing 608ZZ
with 1R269.
1R269
Bearing box
Ball bearing
6001DDW
Spindle
Ball bearing
608ZZ
Spiral bevel
gear 26
Bearing box
Spiral bevel gear 26
Fig. 9
Retaining
ring S-12
Ball bearing 608ZZ
Fig. 10
1R291
Key 4
Retaining ring S-12
Key 4
Remove Retaining ring S-12
with 1R291.
ASSEMBLING
Do the reverse of the disassembling steps.
Note: Do not forget to assemble Key 4 to Spindle. Refer to Fig. 10.
Spiral bevel
gear 26
Spiral bevel gear 26 can
be removed by hand.
Then remove Key 4.
P 9/ 12
Repair
[3]-3. Spur Gear 29, Spiral Bevel Gear 9
ASSEMBLING
Refer to Figs. 11 to 13.
Fig. 11
4x45 tapping screw (4pcs.)
Gear section
Gear housing
Gear housing
Gasket
Gear housing cover
Motor housing
Gear housing cover
Disassemble Gear housing together with
Gear housing cover from Motor housing
by unscrewing 4x45 Tapping screw.
Strike the edge of Gear housing
with plastic hammer.
Gear section can be removed
from Gear housing.
Remove Gear housing cover
from Gear housing by pulling
off.
Fig. 12
Disassemble Ball bearing
696ZZ from the shaft of
Spiral bevel gear 9 with 1R269.
Ring spring 6
Ball bearing 696ZZ
1R269
cut
Insert the pick between the groove of spline and the near point to
Ring spring’s cut. And Lever up Ring spring with the pick
groove of spline
Fig. 13
Strike the work table with
shaft end of Spiral bevel
gear 9.
Spur gear 29 can be disassembled
from the shaft of Spiral bevel
gear 9.
Spiral bevel
gear 9
Separate Lock ring
from Spur gear 29.
Lock ring
Ball bearing
608ZZ
Lock ring
Spur gear 29
Lock cam and Pin 3.5 can be
removed from Spur gear 29.
Lock cam
Pin 3.5
Spur gear 29
Spur gear 29
ASSEMBLING
(1) Take the reverse of the disassembling steps. Refer to Figs. 13 and 12, Pay attention to Fig. 14.
(2) Mount the Gear section to Gear housing as illustrated in Fig. 15.
(3) Assemble Gear housing and Gear housing cover to Motor housing by screwing 4x45 Tapping screws. (Fig. 11)
Fig. 14
Ball bearing 696ZZ
Note: Ring Spring 6 has got wider than the size it
was, due to the disassembling step. Therefore,
Correct the size and form by pressing it with
pliers after assembling to the shaft of Spiral
bevel gear 9.
Correct the size and form
of Ring ring 6 by pressing
the portions designated in
black arrows.
Shaft of Spiral bevel gear 9
Ring spring 6
Fig. 15
Spur gear 29
1R029
protrusion
notch
notch
Assemble the Gear section by
pressing spur gear 29 with
1R029, while aligning the
protrusions of Lock ring to
the notches of Gear housing.
Gear housing
cover
Gasket
Gear housing
Do not forget to mount
Gasket between Gear
housing cover and Gear
housing.
P 10/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Motor Section
DISASSEMBLING
(1) Disassemble Gear housing and Gear housing cover from Motor housing by unscrewing 4x45 Tapping screws. (Fig. 11)
(2) Remove Motor section from Housing set (L) in the order of Figs.16 and 17.
(3) When removing Armature from Brush holder, take the steps illustrated in Figs. 18, 19 and 20.
Fig. 16
Fig. 17
3x16 Tapping screw (5pcs.)
Housing set (R)
Separate Housing set (R)
from Housing set (L) by
unscrewing 3x16 Tapping
screws.
Motor Section
Brush holder complete
Armature
Yoke
unit
Remove York unit, Brush holder complete
and Armature in a set when removing
Motor section.
Link
Remove Switch lever and Link.
Switch lever
Fig. 18
Shift the tail of Torsion spring from top of Carbon brush
to the notch of Brush holder. Now Carbon brush is free
from the pressure of Torsion spring.
Carbon brush
Tail of Torsion spring
notch
Torsion spring
tail of Torsion spring
Carbon brush
notch
Fig. 19
Fig. 20
Carbon brush
Disconnect Carbon brush from
the commutator of Armature by
pulling up.
Then disssemble Armature and
Yoke unit from Brush holder.
Pull off Armature from
Yoke unit.
Armature
Armature
Carbon brush
Yoke unit
Yoke unit
Brush holder
P 11/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Motor Section (cont.)
Fig. 21R
ASSEMBLING
Fig. 21F
Correct
(1) Assemble Armature as illustrated in Fig. 21R.
Note: Pay attention to the position of notch of Yoke unit.
It has to be located on the opposite side of Commutator.
(2) Assemble Brush holder to Armature’s Commutator end.
However, still keep Carbon brush free from the pressure of
Torsion spring of Brush holder in this step.
(2) Assemble the Motor section to Housing set (L) as illustrated
in Figs. 22 and 23.
Fig. 22
Commutator
of Armature
Wrong
Commutator
of Armature
Notch of
Yoke unit
Notch of
Yoke unit
Fig. 23
Protrusion for fitting to
Motor Section
the notch of Yoke unit Housing set (L)
Switch side
Yoke unit Armature
Brush holder
Heat sink
notch for fitting
to Housing set (L)
Fitting the notch of Yoke unit to the protrusion of Housing set (L),
assemble the Motor section.
Brush
holder
complete
Housing
set (R)
90 degrees
Housing
set (L)
Carbon brush
Mount Brush holder complete on
Commutator so that the angle of two
Carbon brushes can be 90 degrees as
illustrated above.
[3]-5. Assembling F/R Change Lever
Fix F/R Change lever to Switch as illustrated in Fig. 24.
Fig. 24
FET
Protrusion of Switch
for fitting F/R Change
Lever’s concave
Concave of F/R change lever
for fitting to protrusion of
Switch
[3]-6. Disassembling Terminal
Flag terminal for this product is equipped with Stopper for firm connection. Remove Flag terminal as illustrated in Fig. 25.
Fig. 25
Stopper
(for firm connection of Flag Terminal)
1. While pushing Stopper with thin screwdriver,
hitch the Flag terminal with the screwdriver.
Flag terminal
2. Pull off the Flag terminal.
Circuit
P 12/ 12
diagram
Fig. D-1
When connecting Lead wires of Brush holder
complete to Switch, connect them as follows.
* Lead wire (black) to M2 Terminal
* Lead wire (red) to M1 Terminal
Color index of lead wires' sheath
Black
White
Red
Brush holder complete
Switch
Terminal
FET
Connector of
Switch
Connector of
LED circuit
Wiring
LED circuit
Switch lever side
diagram
Fig. D-2
Wiring of LED Circuit
(before setting Switch and other electrical Parts)
Lead wires of LED Circuit has to be guided in Housing set (L)
as illustrated below, and fix them with Lead wire holders.
Lead wire holders
LED circuit has to be put into Housing set (L)
as illustrated below.
Connector of LED circuit is connected with
Connector of Switch in the next step.
Fig. D-3
Wiring after setting Switch and other electrical parts
Put the extra portion of
Lead wires in this place.
Fix the Lead wires of Connectors
with these Lead wire holders.
FET
Heat sink
Connector of
Switch side
Armature
Yoke unit
Connector of
LED side
Terminal
Put the extra portion of
Lead wires in this place.
Brush holder complete
Switch
Lead wire holders
Fix Lead wires of Brush holder complete with these Lead wire holders. And put the Lead
wires of Brush holder complete in the position illustrated above, expanding them between
York unit and Brush holder complete.
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