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T
ECHNICAL INFORMATION
Models No.
BHR200S
Description
Cordless Rotary Hammer 20mm (3/16")
C
ONCEPTION AND MAIN APPLICATIONS
The above mentioned model is 20 mm (13/16") cordless rotary hammer. Its brief benefits and features are as follows.
* Equipped with newly developed 24V/3.0Ah Ni-MH battery.
* 3 working modes, they are "rotation with percussion",
"percussion only" and "rotation only".
* SDS-plus bit can be used
Below listed standard type model is only available.
Model No.
Battery
BHR200SF B2430, Ni-MH 24V/3.0Ah
Charger
Plastic case
DC24SA
Yes
CH
H
L
NEW TOOL
P 1 / 23
W
Dimensions : mm ( " )
Width ( W )
86 (3-3/8)
*Height ( H )
Center height (CH)
235 (9-1/4)
35 (1-3/8)
Length ( L )
316 (12-1/2)
*Height ( H ) : 210mm (8-1/4") when battery
B2417 is attached.
S pecification
Battery
Voltage (V)
*Capacity (Ah)
*Energy (Wh)
No load speed : (min
-1
= rpm)
Blows per min : (min
-1
= bpm).
Bit type
Diameter of bit shank : mm ( " )
Capacity : mm ( " )
Concrete
Steel
Wood
Reverse switch
Electric brake
Clutch
24
3.0
72
0 - 1,100
0 - 4,700
SDS-plus
10 (3/8)
20 (13/16)
13 (1/2)
27 (1-1/16)
Yes
Yes
Yes
S tandard equipment
* Depth gauge (Stopper pole) ............................... 1 pc.
* Grease for bit .................................................... 1 pc.
*Capacity (Ah): 1.7Ah when battery B2417 is attached.
*Energy (Wh) : 40.8Wh when battery B2417 is attached.
< Note > The standard equipment for the tool shown may differ from country to country.
O ptional accessories
* SDS-plus type TCT. hammer bit
4.0mm(5/32") - 20mm(13/16")
* Bull point
* Cold chisel
* Scaling chisel
* Grooving chisel
* Drill chuck assembly
* Chuck key S13
* Grease for bit
* Dust cup 5
* Dust cup 9
* Blow out bulb
* Chuck adapter assembly
* Battery B2430
* Battery B2417
* Charger DC24SA
* Dust extractor attachment
* Foot for battery B2417
F eatures and benefits
One touch slide lock chuck for quick bit replacement
P 2 / 23
3 mode change lever for
* Rotation with percussion,
* Rotation only
* Percussion only
All of competitors' models are 2 mode type, or a chisel adapter is required, when the machine is operated as a percussion hammer.
Palm-fitly soft grip
D-form handle for efficient transmission of pressure power to the tip of bit
Long life D/C motor with externally accessible carbon brush
Comfortable work thanks to incredible low vibration
Removable foot for flat bottom.
Foot
When operation with battery B2417 (small type), foot can be removed.
When operation with battery B2430 (large type), foot can be attached.
Newly developed 24V Ni-MH battery
We can provide 2 kinds of Ni-MH batteries for BHR200S. They are,
* Battery B2417, 1.7Ah (optional accessory)
* Battery B2430, 3.0Ah
C omparison of products
Comparison No.1
Model No.
Spec.
Voltage (V)
Capacity (Ah)
Energy (Wh)
Cell
Weight : Kg
Charging time (min.)
MAKITA
BHR200S
24
3.0
72
1.7
40.8
Ni-MH
1.46
60
0.98
30
Competitor A
A
24
3.0
1.96
27
1.7
72 40.8
Ni-Cd
1.32
15 concrete : mm (")
20 (13/16) 20 (13/16)
Competitor B
B
24
2.5
1.7
60
1.95
40.8
Ni-Cd
1.26
65
45
16 (5/8)
Competitor C
C
24
2.0
48
Ni-Cd
1.35
60
20 (13/16)
P 3 / 23 steel : mm (")
13 (1/2)
10 (3/8)
13 (1/2) wood : mm (") 27 (1-1/16)
20 (13/16)
30 (1-3/16)
No load speed
: (min
-1
= rpm)
Blows per min
: (min
-1
= bpm).
calculated by
our own method
0 - 1,100
0 - 4,700
2.1 J
0 - 1,000
0 - 4,400
0 - 820
0 - 4,010
2.0 J
Figure on catalog
2.1 J 1.3 J
2.0 J
Working mode
One touch slide lock
Two touch slide lock
Standard equipments
3 modes
Grease for bit
Depth gauge
* 2 modes
Revolving lock
Externally accessible carbon brush
Length : mm
(")
316
Yes
(12-1/2)
316
(12-1/2)
Height : mm
(")
Width : mm
(") measured by us : Kg (lbs)
Figure on catalog: Kg (lbs)
Plastic carrying case
235
(9-1/4)
86
(3-3/8)
4.09
(9.02)
210
(8-1/4)
86
(3-3/8)
3.58
(7.89)
4.0
(8.8)
Yes
3.5
(7.7)
329
(13)
233
(9-1/8)
No
329
(13)
216
(8-1/2)
72
(2-13/16)
72
(2-13/16)
4.18
(9.22)
3.54
(7.80)
4.2
(9.3)
Yes
3.5
(7.7)
398
(15-5/8)
No
398
(15-5/8)
196
(7-3/4)
116
(4-9/16)
196
(7-3/4)
77
(3)
4.98
(10.98)
4.8
(10.6)
4.29
(9.46)
Yes
4.2
(9.3)
Depth gauge
2 modes
Dust cup
Grease for bit
Depth gauge
Cleaning cloth
0 - 1,100
0 - 4,200
2.2 J
2.0 J
2 modes
No
355
(14)
215
(8-1/2)
100
(3-15/16)
3.98
(8.77)
4.2
(9.3)
Yes
Grease for bit
Depth gauge
* 2 modes :In case of Competitor A, a chisel adapter (optional accessory) is required to be operated
as a demolition hammer.
C omparison of products
Comparison No.2
Model No.
Spec.
Voltage (V)
Capacity (Ah)
Energy (Wh)
Cell
Weight : Kg
Charging time (min.)
MAKITA
BHR200S
24
3.0
72
Ni-MH
1.7
40.8
1.46
60
0.98
30
Competitor D
D
24
2.0
48
Ni-Cd
1.31
15
3.0
72
Ni-MH
1.4
22
Competitor E
E
24
2.0
48
Ni-Cd
1.37
18 concrete : mm (")
20 (13/16)
20 (13/16)
20 (13/16) steel : mm (")
13 (1/2)
13 (1/2) wood : mm (") 27 (1-1/16)
27 (1-1/16)
No load speed
: (min
-1
= rpm)
Blows per min
: (min
-1
= bpm).
calculated by
our own method
0 - 1,100
0 - 4,700
2.1 J
0 - 950
0 - 4,600
2.9 J
Figure on catalog
2.1 J
Working mode
One touch slide lock
Two touch slide lock
3 modes
2 modes
Revolving lock
Externally accessible carbon bruch
Length : mm
(")
316
(12-1/2)
Yes
316
(12-1/2)
Height : mm
(")
Width : mm
(") measured by us : Kg (lbs)
Figure on catalog: Kg (lbs)
Plastic carrying case
235
(9-1/4)
86
(3-3/8)
4.09
(9.02)
4.0
(8.8)
210
(8-1/4)
86
(3-3/8)
Yes
3.58
(7.89)
3.5
(7.7)
291
(11-1/2)
199
(7-7/8) (7-7/8)
68
No
(2-11/16)
291
(11-1/2)
199
107
(4 -1/4)
3.45
(7.6)
3.6
(7.9)
Yes
3.54
(7.8)
3.6
(7.9)
Standard equipments
Grease for bit
Depth gauge
Grease for bit
Depth gauge
Dust cup
0 - 1,150
0 - 4,400
2.2 J
2 modes
No
292
(11-1/2)
210
(8-1/4)
100
(3-15/16)
3.79
(8.36)
3.7
(8.2)
Yes
Depth gauge
P 4 / 23
Diameter of equipped bit : 6.5mm Depth of hole : 40 mm
C omparison of products
Comparison in working speed, and working amount per one fully charged battery
Working speed
P 5 / 23
Slow
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
4.6
2.0
1.0
0.0
Fast
MAKITA
BHR200S
5.1
Bit diameter: 6.5 mm
4.8
Competitor A
Model A
Competitor D
Model D
Depth of hole : 40 mm
4.5
Competitor E
Model E
5.3
Competitor C
Model C
6.1
Competitor B
Model B
Drilled holes with one fully charged battery
Bit diameter: 6.5 mm Depth of hole : 40 mm
200
180
160
140
120
100
80
60
40
20
0
64
111
1.7Ah 3.0Ah
MAKITA
BHR200S
67
148
Competitor A
Model A
59
1.7Ah 3.0Ah
2.0Ah
108
3.0Ah
Competitor D
Model D
94
2.0Ah
Competitor E
Model E
57
1.7Ah
Competitor C
Model C
43
71
1.7Ah
2.5Ah
Competitor B
Model B
C omparison of products
Working speed
Slow
10.0
9.0
8.0
7.0
6.0
6.2
5.0
4.0
3.0
2.0
1.0
0.0
Fast
MAKITA
BHR200S
7.4
Competitor A
Model A
Bit diameter: 8.5 mm
5.8
Competitor D
Model D
Depth of hole : 40 mm
5.9
Competitor E
Model E
6.4
Competitor C
Model C
7.6
P 6 / 23
Competitor B
Model B
Drilled holes with one fully charged battery
Bit diameter: 8.5 mm Depth of hole : 40 mm
200
180
160
140
120
100
80
60
40
20
0
50
88
1.7Ah 3.0Ah
MAKITA
BHR200S
49
102
44
1.7Ah 3.0Ah
2.0Ah
Competitor A
Model A
80
3.0Ah
Competitor D
Model D
78
2.0Ah
Competitor E
Model E
47
1.7Ah
Competitor C
Model C
36
60
1.7Ah
2.5Ah
Competitor B
Model B
C omparison of products
Slow
16.0
Working speed
14.0
12.0
10.0
8.0
6.0
8.5
4.0
2.0
0.0
Fast
MAKITA
BHR200S
8.0
Competitor A
Model A
Bit diameter: 12.5 mm Depth of hole : 40 mm
7.0
Competitor D
Model D
9.7
Competitor E
Model E
7.8
Competitor C
Model C
P 7 / 23
9.0
Competitor B
Model B
Drilled holes with one fully charged battery
50
40
30
20
10
0
100
90
80
70
60
38
67
1.7Ah 3.0Ah
MAKITA
BHR200S
43
88
Bit diameter: 12.5 mm Depth of hole : 40 mm
37
68
1.7Ah 3.0Ah
2.0Ah
3.0Ah
Competitor A
Model A
Competitor D
Model D
52
2.0Ah
Competitor E
Model E
39
1.7Ah
Competitor C
Model C
31
50
1.7Ah 2.5Ah
Competitor B
Model B
C omparison of products
P 8 / 23
Slow
16.0
Working speed
14.0
12.0
10.0
8.0
6.0
9.9
4.0
2.0
0.0
Fast
MAKITA
BHR200S
10.5
Competitor A
Model A
Bit diameter: 14.5 mm Depth of hole : 40 mm
8.7
Competitor D
Model D
11.3
Competitor E
Model E
9.4
Competitor C
Model C
12.2
Competitor B
Model B
Drilled holes with one fully charged battery
50
40
30
20
10
0
100
90
80
70
60
32
55
1.7Ah 3.0Ah
MAKITA
BHR200S
31
64
Bit diameter: 14.5 mm Depth of hole : 40 mm
29
54
1.7Ah 3.0Ah
2.0Ah
3.0Ah
Competitor A
Model A
Competitor D
Model D
40
2.0Ah
Competitor E
Model E
32
1.7Ah
Competitor C
Model C
23
37
1.7Ah 2.5Ah
Competitor B
Model B
C omparison of products
P 9 / 23
Slow
16.0
Working speed
14.0
12.0
10.0
8.0
6.0
10.9
4.0
2.0
0.0
Fast
MAKITA
BHR200S
13.1
Competitor A
Model A
Bit diameter: 16.5 mm Depth of hole : 40 mm
10.5
Competitor D
Model D
12.0
Competitor E
Model E
11.7
Competitor C
Model C
15.1
Competitor B
Model B
Drilled holes with one fully charged battery
50
40
30
20
10
0
100
90
80
70
60
28
49
1.7Ah 3.0Ah
MAKITA
BHR200S
26
53
Bit diameter: 16.5 mm Depth of hole : 40 mm
25
45
1.7Ah 3.0Ah
2.0Ah
Competitor A
Model A
3.0Ah
Competitor D
Model D
36
2.0Ah
Competitor E
Model E
26
18
30
1.7Ah
Competitor C
Model C
1.7Ah 2.5Ah
Competitor B
Model B
C omparison of products
Chipped amount with one fully charged battery
4 Kg
3.05 Kg
3 Kg
12.5 minutes
2.95 Kg
2 Kg
18.5 minutes
P 10 / 23
1 Kg
0
MAKITA
BHR200S
Competitor A
Model A
20.0 m/s2
18.0 m/s2
16.0 m/s2
14.0 m/s2
12.0 m/s2
10.0 m/s2
8.0 m/s2
6.0 m/s2
4.0 m/s2
2.0 m/s2
Vibration under loaded condition
Working mode : Rotation with percussion
Measured and evaluated in conformity with CE Regulations.
13.0
16.2
18.5
14.0
MAKITA
BHR200S
Competitor A
Model A
Competitor D
Model D
Competitor E
Model E
16.3
14.7
Competitor C
Model C
Competitor B
Model B
100 dB
90 dB
80 dB
70 dB
60 dB
50 dB
40 dB
30 dB
20 dB
10 dB
Sound pressure level
Working mode : Rotation with percussion
Measured and evaluated in conformity with CE Regulations.
91
95
89
89
MAKITA
BHR200S
Competitor A
Model A
Competitor D
Model D
Competitor E
Model E
90
Competitor C
Model C
87
Competitor B
Model B
R epair
Lubrication
P 11 / 23
Put grease on the following places in order to protect parts and machine from unusual abrasion and overheating.
Recommendable is our genuine grease, "MAKITA Grease R No.1".
All of O rings built in BHR200S
Teeth of all gears built in BHR200S
(1) Cap 31
Inside of rip portion
(9) Pin 8
Bottom of cylindric portion
Inside of oil seal
(12) Oil seal 25
(15) O ring case
Grooved portion inside of O ring case
Grooved portion for O ring
(19) Impact bolt
(21) Plane bearing 26
(22) Tool holder
(23) Steel ball 7.0
(29) Striker
Inside of plane bearing 26
Whole Inner part of tool holder
Grooved portion for O ring
Inside of perforated holes
(30) Piston cylinder
(38) Spur gear 10
(39) Clutch cam
Cam portion
Cam portion
Whole part
(40) Cam shaft
(41) Swash bearing 10 Cam and shaft
R epair
Removing
< 1 > Removing chuck section
(1) Pull down chuck cover and detach cap 31 as illustrated in Fig. 1, and then, remove chuck cover and
compression spring 38 as illustrated in Fig. 1A.
P 12 / 23
Cap 31
Pull down chuck cover.
Chuck cover
Compression spring 38
Tool holder
Ring spring 17
Chuck cover
Fig. 1 Fig. 1A
(2) Lever up ring spring 17 with screwdriver, expanding it with 1R004 "retaining ring plier" and remove
ring spring 17 from tool holder as illustrated in Fig. 2.
1R004 Retaining ring plier
Ring spring 17
Fig. 2.
(3) Remove ring spring 30.5 from chuck ring, and then, detach spring guide and compression spring 35 as illustrated
in Fig. 3.
Ring spring 30.5
Spring guide
Compression spring 35
Chuck ring
Leaf spring 26 installed on chuck ring
Fig. 3.
(4) Remove leaf spring 26 with 1R003 "retaining ring plier" from chuck ring, and then, detach pin 8
as illustrated in Fig. 4. Remove chuck ring, steel ball 7.0 and guide washer from tool holder
as illustrated in Fig. 4A.
Chuck ring
Leaf spring 26 Guide washer
Pin 8
Steel ball 7.0
Remove from chuck ring expanding with 1R003
"retaining ring plier".
Chuck ring
Fig. 4
Tool holder
Fig. 4A
R epair
< 2 > Disassembling housing.
(1) Pull down chuck cover and detach cap 31 as illustrated in Fig. 1.
(2) Set change lever to the "rotation with percussion" mode as illustrated in Fig. 5.
Otherwise, cam shaft is lifted up and ball bearing 606ZZ, cup washer
and conical compression spring 7-14 easily come out from housing L.
See Fig. 5A.
Cup washer
Fig. 5
P 13 / 23
Ball bearing 606ZZ
Conical compression spring 7-14
Housing L
Fig. 5A
(3) Remove foot by unscrewing 2 pcs. of tapping screws 4x18, if it is attached.
(4) Dismount housing R from housing L by unscrewing 14 pcs. of tapping screws 4x18.
< 3 > Disassembling clutch section.
(1) Disassemble the chuck section as per < 1 > and < 2 >, and take out tool holder unit from housing.
See Fig. 6.
Tool holder.
Ball bearing 6905LLB
Spur gear 49
Plane bearing 26
Ring spring 26
Flat washer 29
Piston joint
Piston cylinder
Compression spring 29
(2) Remove the following parts from tool holder.
* Oil seal 25 * Ball bearing 6905LLB * Plane bearing 26
* Piston joint * 2 pcs. of flat washers 12 * Piston cylinder
* Striker
Fig. 6
Ball bearing 6905LLB can be easily removed by using 1R045 "Large gear extractor".
Tool holder.
Oil seal 25
Ring spring 26
Plane bearing 26
Flat washers 12
Piston join
Flat washer 29
Ball bearing 6905LLB
Striker
Piston cylinder
Compression spring 29
Flat washers 12
Fig. 7
R epair
P 14 / 23
(3) Expand ring spring 26 with 1R045 "retaining ring plier", So the ring spring 26 is to be pushed out from
the groove of tool holder by compression spring 29. And then, it can be removed with screwdriver.
< Note > Remove ring spring 26 putting tool holder unit on the working table as illustrated in Fig.8.
Otherwise, the parts on the tool holder are ejected together with compression spring 29.
Spur gear 49
Compression spring 29
Ring spring 26
Flat washer 29
Fig.8
Working table
(4) Remove spur gear 49 from the tool holder.
Spur gear 49
Fig. 9
< 4 > Disassembling impact bolt
(1) Disassemble the chuck section as per < 1 >, < 2 > and < 3 >, and take out tool holder unit from housing.
See Fig. 6.
(2) If the cut section of ring spring 21 is located in the holes of tool holder as illustrated in Fig. 10,
set the ring spring 21 as illustrated in Fig. 10A by sliding its cut section with slotted head screwdriver.
* The same hole is bored on the opposite side of tool holder.
Inside groove
Ring spring 21
Cut section of ring spring 21
O ring case
Fig. 10A
Fig. 10
O ring case
R epair
P 15 / 23
(3) Insert a slotted head screwdriver between ring spring 21 and O ring case as illustrated in Fig. 11.
And push out the ring spring 21 from the inside groove of tool holder, with the slotted head screwdriver
Ring spring 21
O ring case
In case may be, you can remove the ring spring 21 by hitting the screwdriver.
Fig. 11
(4) Insert 1R236 "round bar for arbor 7mm" in tool holder and remove the following parts from tool holder
by pressing with arbor press. See Fig. 12. After removing, clean the inside of tool holder in order to prevent
O ring's wearing away.
* Ring spring 21
* O ring case with O ring 11
* O ring 12
* Ring 12
* Impact bolt
1R236
"Round bar for arbor 7mm"
< Note >
Press "round bar for arbor 7mm" vertically.
Otherwise, impact bold can not be removed, because "the round bar for arbor" may sticks into the space between the tool holder and impact bolt as illustrated in Fig. 12A.
Fig. 12A
< 5 > Removing swash bearing 10
(1) Disassemble housing as per < 2 >, and then, take out the cam shaft unit from housing L.
(2) Remove ring 6 and ball bearing 626DDW with 1R269 "bearing extractor" as illustrated in Fig. 13.
Ball bearing 626DDW
Ring 6
1R269 "Bearing extractor"
Fig. 13
R epair
(3) Hold zerol bevel gear 32 with 1R022 "bearing extractor plate" as illustrated in Fig. 14.
And press cam shaft with arbor press. Swash bearing can be removed from cam shaft.
Zerol bevel gear 32
P 16 / 23
1R022 Bearing extractor plate
Fig. 14
< 6 > Removing change lever
(1) Disassemble housing as per < 2 >, and then, take out the cam shaft unit and tool holder unit
from housing L.
(2) Set change lever to percussion mode as illustrated in Fig. 15.
< Note > It is impossible to remove change plate
in the other mode.
Fig. 15
(3) Remove change plate and compression spring 4, And detach guide plate by unscrewing
2 pcs. of tapping screws 4 x 12 as illustrated in Fig. 16.
(4) Detach retaining ring S-18, And pull out change lever with pressing lock button as illustrated in Fig. 16.
Compression spring 4
Guide plate
Change plate
Tapping screws 4 x 12
Retaining ring S-18
Change lever
Lock button
Fig. 16
R epair
< 7 > Removing armature
(1) Disassemble housing as per < 2 >, and then, take out brush holder on housing R side, by unscrewing
2 pcs. of tapping screws 4 x 18 as illustrated in Fig. 17. ( No need to remove brush holder assembled
in housing L.)
(2) Remove armature together with yoke unit
as illustrated in Fig 17.
P 17 / 23
Housing L
Brush holder
Armature (including zerol bevel gear 11,
ball bearing 608LLU, fan 64, and
ball bearing 626DDW)
Yoke unit
< Note > Ball bearing 626DDW attached on
the commutator side, is not
assembled by pressing.
Be careful not to lose ball
bearing 626DDW, when removing
armature.
Brush holder on housing R side
Fig. 17
Assembling
< 8 > Assembling armature
(1) Insert armature into yoke unit as illustrated in Fig 18.
< Note > Armature is dragged into yoke unit easily, with its very strong magnetic force.
Be careful not to damage the armature wire, zerol bevel gear 11 and commutatror
in this process.
(2) Assemble yoke unit and armature to housing L
Fig. 18
Cut : Fit this cut on the rib of housing L.
Fig. 19
(3) Attach brush holders to housing L, and fasten them with 2 pcs. of tapping screw 4 x 12.
R epair
< 9 > Assembling equipment for mode change
(1) Attach compression spring 4, lock button and O ring 17 to change lever as illustrated in Fig.20.
Lock button
Compression spring 4
O ring 17
Change lever
P 18 / 23
Lock button has to be pressed into change lever until its hook engages change lever.
Fig.20
(2) Attach the above change lever to housing L. And assemble retaining ring S-18 as illustrated in Fig.21.
Set the change lever to percussion mode as illustrated in Fig. 21A. Assemble guide plate to housing L with
2 pcs. of tapping screws 4 x 12.
Guide plate
Retaining ring S-18
Change lever set in percussion mode
Change lever
Fig.21
Fig.21A
(3) Assemble change plate as follows.
1. Set compression spring 4 to change plate as illustrated in Fig.22A.
2. Set compression spring 4 assembled on change plate, to guide plate as illustrated in Fig. 22B
3. Mount the whole change plate on guide plate, setting the under edge of the change plate to the rib of
guide plate as illustrated in Fig 22C.
4. Set change lever on the rotary hammer mode to prevent that the change plate slips off from
the guide plate's rib.
Compression spring 4
Change plate
Guide plate
Fig.22A
Top view of the above parts
Compression spring 4
Change plate
Compression spring 4
Change plate
Side view of the above parts assembled to guide plate
Guide plate
Fig. 22B
Set the under edge of the change plate to the rib of guide plate.
Fig 22C
R epair
< 10 > Assembling impact bolt
(1) Assemble O ring 12 (thin type) to impact bolt, and insert the impact bolt deep into tool holder.
< Note > The impact bolt has to be inserted as illustrated in Fig. 23.
O ring 12 (thin type)
P 19 / 23
Tool holder
Tool holder
Impact bolt
Fig. 23
(2) Insert the parts into the tool holder in the following order as illustrated in Fig. 24.
1. Ring 12 2. O ring 12 (thick type)
3. O ring case in which O ring 11 has been inserted in advance.
O ring 11
Press with arbor press.
Tool holder
22mm
Fig. 24
(3) Press ring spring 21 into the tool holder with 1R248
"Round bar for arbor 22mm" until it fits in the groove
which is grooved inside of tool holder. See Fig. 25.
And make sure that the ring spring 21 is fit in the groove.
1R248 "Round bar for arbor 22mm"
Ring spring 21
Fig. 25
< 11 > Assembling spur gear 49 and other parts to tool holder
(1) Set 1R272 " Ring Spring Setting Tool A" on the tool holder
which is assembled as mentioned in < 10 >. And then set
spur gear 49, compression spring 29 and flat washer 29 as
illustrated in Fig.26.
(2) Set ring spring 26 on the 1R272 "Ring Spring Setting ool A" as illustrated in Fig. 26.
Ring spring 26
Flat washer 29
Compression spring 29
Spur gear 49
Tool holder
1R272
" Ring Spring Setting Tool A
Flat washer 29 has to be faced as Fig. A, when assembling.
Ring spring 26 side
Spur gear 49 side
Set cam bulge of spur gear 49 in the concave portion of tool holder
Fig. A
Fig. 26
< Note > Be careful, not to hurt yourself with this edge, because
it is sharpened.
1R272
Ring Spring Setting Tool A
R epair
P 20 / 23
(3) Put 1R273 "
Ring Spring Setting Tool B" on the top of tool holder. Press it with arbor press as illustrated
in Fig. 27 to set ring spring 26 in the goove of tool holder.
Ring spring 26
Press with arbor press.
Ring spring 26 set in the tool holder's groove.
1R273
"
Ring Spring
Setting Tool B"
Tool holder
Flat washer 29
Compression spring 29
Spur gear 49
Fig. 27
(4) Make sure that ring spring 26 is set in the groove of tool holder completely.
< 12 > Assembling tool holder section
(1) Assemble the following parts to the tool holder assembled as per < 11 >. See Fig. 28.
* Ball bearing 6905LLB
* Retaining ring S-25 (for shaft)
* Oil seal 25
* Plane bearing 26
* Striker with O ring 15
* Piston cylinder
* 2 pcs. of Flat washers 12
* Piston joint
Piston cylinder
Retaining ring S-25
(for shaft)
Plane bearing 26
Flat washers 12
Oil seal 25
Ball bearing
6905LLB
Tool holder section assembled as per < 11 >
Striker with
O ring 15
Piston joint
Hammer bit Side Ball bearing 6905LLB side
Oil seal 25 has to be faced as illustrated above.
Do not assemble striker with O ring 15, as illustrated above.
R epair
< 13 > Assembling chuck section
(1) Assemble the following parts to the tool holder as illustrated in Fig. 29.
* Guide washer
* Chuck ring
* Steel ball 7.0
* Pin 8
* Leaf spring 26
* Ring spring 17
* Compression spring 35
* Spring guide
Ring spring 30.5
Compression spring 35
Ring spring 17
Pin 8
Guide washer
Tool holder
P 21 / 23
* Ring spring 30.5
Chuck ring
Spring guide
Leaf spring 26
Chuck ring
Steel ball 7.0
Fig. 29
Leaf spring 26
Guide washer has to be faced as illustrated below.
Chuck ring
Leaf spring 26
Side of
Leaf spring 26
Side of tool holder
The concave portion of leaf sing 26 has to be aligned with the same of chuck ring as illustrated above.
The hole of leaf spring 26 has to be located on the bit setting side as illustrated above.
(2) It is recommended to use 1R212 "Plier's Nail" for easy mounting of ring spring 17 and 26.
Owing to the concave nail, you can operate without sliding of Ring Spring and
Concentric Retaining Ring.
Ring Spring
1R212 Plier's Nail
Fig. 30
Retaining Ring S Plier
(1R003)
< Note > Be careful not to expand ring spring 17 too wide in order to prevent its deformation.
< 14 > Assembling the tool holder section to housing.
(1) Assemble the tool holder section by setting oil seal 25, ball bearing 6905LLB and plane bearing 26
in the concave portion for them as illustrated in Fig. 31.
Ball bearing 690-5LLB
Oil seal 25
Plane bearing 26
R epair
< 15 > It is recommended to replace the following parts in the square, when replacing carbon brush.
Ring spring 30.5
Compression spring 35
Ring spring 17
Pin 8
Guide washer
Tool holder
P 22 / 23
Spring guide
Leaf spring 26
Chuck ring
Steel ball 7.0
Plane bearing 26
Piston cylinder
Flat washers 12
Tool holder section assembled as per < 11 >
Striker
O ring 15
Piston joint
Tool holder
Impact bolt
Ring 12
O ring 11 to be assembled to O ring case
O ring 12
(Thin type) for impact bolt
O ring 12
(Thick type)
O ring case
C ircuit diagram
Orange
Fix lead wires with lead holder.
M1
Red
P 23 / 23
M2
Black
W iring diagram
Put slack part of lead wires here.
Black
Pass lead wires between boss and inner wall of housing.
Boss
Bend the connecting terminals of brush holders' lead wires as illustrated below, when they are connected with switch.
Approx.45°
Black
Fix lead wires with lead holder.
Switch
A
Brush holder
(Housing R side)
Brush holder
(Housing L side)
Red
Switch
Terminal
Put slack part of lead wires to be connected with terminal, here.
Brush holder
(Housing R side)
Put slack part of FET lead wires here, and put it on the bottom of the housing.
Connect the receptacles with terminal as illustrated below.
Lead wire
(Black)
Lead wire
(Orange)
Lead wire (Red)
Fix with lead holder.
Brush holder
(Housing L side)
Lead wire (Black)
Only this lead wire (Black) is free from lead holder.
Terminal
To be connected with switch
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