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T ECHNICAL INFORMATION
Models No. BHR200S
NEW TOOL
P 1 / 23
L
Description Cordless Rotary Hammer 20mm (3/16") CH
CONCEPTION 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. H
* 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. W
Model No. Battery Charger Plastic case
Dimensions : mm ( " )
BHR200SF B2430, Ni-MH 24V/3.0Ah DC24SA Yes
Width ( W ) 86 (3-3/8)
*Height ( H ) 235 (9-1/4)
Center height (CH) 35 (1-3/8)
Length ( L ) 316 (12-1/2)
*Height ( H ) : 210mm (8-1/4") when battery
Specification B2417 is attached.
Voltage (V) 24
Battery *Capacity (Ah) 3.0 *Capacity (Ah): 1.7Ah when battery B2417 is attached.
*Energy (Wh) 72 *Energy (Wh) : 40.8Wh when battery B2417 is attached.
No load speed : (min-1= rpm) 0 - 1,100
Blows per min : (min-1= bpm). 0 - 4,700
Bit type SDS-plus
Diameter of bit shank : mm ( " ) 10 (3/8)
Concrete 20 (13/16)
Capacity : mm ( " ) Steel 13 (1/2)
Wood 27 (1-1/16)
Reverse switch Yes
Electric brake Yes
Clutch Yes
Standard equipment
* Depth gauge (Stopper pole) ............................... 1 pc.
* Grease for bit .................................................... 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
Optional accessories
* SDS-plus type TCT. hammer bit * Chuck adapter assembly
4.0mm(5/32") - 20mm(13/16") * Battery B2430
* Bull point * Battery B2417
* Cold chisel * Charger DC24SA
* Scaling chisel * Dust extractor attachment
* Grooving chisel * Foot for battery B2417
* Drill chuck assembly
* Chuck key S13
* Grease for bit
* Dust cup 5
* Dust cup 9
* Blow out bulb
Features and benefits 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.
One touch slide lock chuck
for quick bit replacement
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
Comfortable work thanks brush
to incredible low vibration
Removable foot for flat bottom. 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
Foot
When operation with When operation with
battery B2417 (small type), battery B2430 (large type),
foot can be removed. foot can be attached.
Comparison of products P 3 / 23
Comparison No.1
Model No. MAKITA Competitor A Competitor B Competitor C
Spec. BHR200S A B C
Voltage (V) 24 24 24 24
Battery
Capacity (Ah) 3.0 1.7 3.0 1.7 2.5 1.7 2.0
Energy (Wh) 72 40.8 72 40.8 60 40.8 48
Cell Ni-MH Ni-Cd Ni-Cd Ni-Cd
Weight : Kg 1.46 0.98 1.96 1.32 1.95 1.26 1.35
Charging time (min.) 60 30 27 15 65 45 60
concrete : mm (") 20 (13/16) 20 (13/16) 16 (5/8) 20 (13/16)
Drilling in
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 0 - 1,100 0 - 1,000 0 - 820 0 - 1,100
: (min -1= rpm)
Blows per min 0 - 4,010 0 - 4,200
0 - 4,700 0 - 4,400
: (min -1= bpm).
Energy of blow
calculated by
2.1 J 2.0 J 2.2 J
our own method
Figure 2.1 J 1.3 J 2.0 J 2.0 J
on catalog
Working mode 3 modes * 2 modes 2 modes 2 modes
One touch
Chuck system
slide lock
Two touch
slide lock
Revolving lock
Externally accessible
Yes No No No
carbon brush
Length : mm 316 316 329 329 398 398 355
Dimensions
(") (12-1/2) (12-1/2) (13) (13) (15-5/8) (15-5/8) (14)
Height : mm 235 210 233 216 196 196 215
(") (9-1/4) (8-1/4) (9-1/8) (8-1/2) (7-3/4) (7-3/4) (8-1/2)
Width : mm 86 86 72 72 116 77 100
(") (3-3/8) (3-3/8) (2-13/16) (2-13/16) (4-9/16) (3) (3-15/16)
measured 4.09 3.58 4.18 3.54 4.98 4.29 3.98
Weight
by us : Kg (lbs) (9.02) (7.89) (9.22) (7.80) (10.98) (9.46) (8.77)
Figure 4.0 3.5 4.2 3.5 4.8 4.2 4.2
on catalog: Kg (lbs) (8.8) (7.7) (9.3) (7.7) (10.6) (9.3) (9.3)
Plastic carrying case Yes Yes Yes Yes
Grease for bit Depth gauge Dust cup Grease for bit
Standard equipments Depth gauge Grease for bit Depth gauge
Depth gauge
Cleaning cloth
* 2 modes :In case of Competitor A, a chisel adapter (optional accessory) is required to be operated
as a demolition hammer.
Comparison of products P 4 / 23
Comparison No.2
Model No. MAKITA Competitor D Competitor E
Spec. BHR200S D E
Voltage (V) 24 24 24
Battery
Capacity (Ah) 3.0 1.7 2.0 3.0 2.0
Energy (Wh) 72 40.8 48 72 48
Cell Ni-MH Ni-Cd Ni-MH Ni-Cd
Weight : Kg 1.46 0.98 1.31 1.4 1.37
Charging time (min.) 60 30 15 22 18
concrete : mm (") 20 (13/16) 20 (13/16) 20 (13/16)
Drilling in
steel : mm (") 13 (1/2) 13 (1/2)
wood : mm (") 27 (1-1/16) 27 (1-1/16)
No load speed 0 - 1,100 0 - 950 0 - 1,150
: (min -1= rpm)
Blows per min 0 - 4,400
0 - 4,700 0 - 4,600
: (min -1= bpm).
Energy of blow
calculated by
2.1 J 2.9 J 2.2 J
our own method
Figure 2.1 J
on catalog
Working mode 3 modes 2 modes 2 modes
One touch
Chuck system
slide lock
Two touch
slide lock
Revolving lock
Externally accessible Yes No No
carbon bruch
Length : mm 316 316 291 291 292
Dimensions
(") (12-1/2) (12-1/2) (11-1/2) (11-1/2) (11-1/2)
Height : mm 235 210 199 199 210
(") (9-1/4) (8-1/4) (7-7/8) (7-7/8) (8-1/4)
Width : mm 86 86 68 107 100
(") (3-3/8) (3-3/8) (2-11/16) (4 -1/4) (3-15/16)
measured 4.09 3.58 3.45 3.54 3.79
Weight
by us : Kg (lbs) (9.02) (7.89) (7.6) (7.8) (8.36)
Figure 4.0 3.5 3.6 3.6 3.7
on catalog: Kg (lbs) (8.8) (7.7) (7.9) (7.9) (8.2)
Plastic carrying case Yes Yes Yes
Grease for bit Grease for bit Depth gauge
Depth gauge Depth gauge
Standard equipments Dust cup
Comparison of products P 5 / 23
Comparison in working speed, and working amount per one fully charged battery
Working speed
Slow
Bit diameter: 6.5 mm Depth of hole : 40 mm
10.0
9.0
8.0
Time : sec./ 40mm
7.0
6.0
6.1
5.0 5.1 5.3
4.6 4.8
4.0 4.5
3.0
2.0
1.0
0.0
Fast MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Drilled holes with one fully charged battery
200 Bit diameter: 6.5 mm Depth of hole : 40 mm
180
160
140
148
120
Holes
100 111 108
80 94
60 67 71
64 59
40 57
43
20
0
1.7Ah 3.0Ah 1.7Ah 3.0Ah 2.0Ah 3.0Ah 2.0Ah 1.7Ah 1.7Ah 2.5Ah
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Comparison of products P 6 / 23
Working speed
Slow
Bit diameter: 8.5 mm Depth of hole : 40 mm
10.0
9.0
8.0
7.0 7.6
7.4
Time : sec./ 40mm
6.0 6.4
6.2 5.8 5.9
5.0
4.0
3.0
2.0
1.0
0.0
Fast MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Drilled holes with one fully charged battery
200 Bit diameter: 8.5 mm Depth of hole : 40 mm
180
160
140
120
Holes
100
102
80
88
80 78
60
60
40 50 49
44 47
36
20
0
1.7Ah 3.0Ah 1.7Ah 3.0Ah 2.0Ah 3.0Ah 2.0Ah 1.7Ah 1.7Ah 2.5Ah
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Comparison of products P 7 / 23
Working speed
Slow
16.0 Bit diameter: 12.5 mm Depth of hole : 40 mm
14.0
12.0
Time : sec./ 40mm
10.0
9.7
8.0 9.0
8.5 8.0 7.8
6.0 7.0
4.0
2.0
0.0
Fast MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Drilled holes with one fully charged battery
100 Bit diameter: 12.5 mm Depth of hole : 40 mm
90
80 88
70
60 68
67
Holes
50
52 50
40 43
30 38 39
37
31
20
10
0
1.7Ah 3.0Ah 1.7Ah 3.0Ah 2.0Ah 3.0Ah 2.0Ah 1.7Ah 1.7Ah 2.5Ah
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Comparison of products P 8 / 23
Working speed
Slow
16.0 Bit diameter: 14.5 mm Depth of hole : 40 mm
14.0
12.0
Time : sec./ 40mm
12.2
10.0 11.3
10.5
9.9
8.0 9.4
8.7
6.0
4.0
2.0
0.0
Fast MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Drilled holes with one fully charged battery
100 Bit diameter: 14.5 mm Depth of hole : 40 mm
90
80
70
60
Holes
64
50
55 54
40
30 40
37
32 31 29 32
20 23
10
0
1.7Ah 3.0Ah 1.7Ah 3.0Ah 2.0Ah 3.0Ah 2.0Ah 1.7Ah 1.7Ah 2.5Ah
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Comparison of products P 9 / 23
Working speed
Slow
16.0 Bit diameter: 16.5 mm Depth of hole : 40 mm
14.0
15.1
12.0 13.1
Time : sec./ 40mm
12.0
10.0 11.7
10.9 10.5
8.0
6.0
4.0
2.0
0.0
Fast MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Drilled holes with one fully charged battery
100 Bit diameter: 16.5 mm Depth of hole : 40 mm
90
80
70
60
Holes
50
53
40 49
45
30 36
28 26 30
20 25 26 18
10
0
1.7Ah 3.0Ah 1.7Ah 3.0Ah 2.0Ah 3.0Ah 2.0Ah 1.7Ah 1.7Ah 2.5Ah
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Comparison of products P 10 / 23
Chipped amount with one fully charged battery
4 Kg
3.05 Kg 2.95 Kg
3 Kg
Chipped amount
12.5 minutes 18.5 minutes
2 Kg
1 Kg
0
MAKITA Competitor A
BHR200S Model A
Vibration under loaded condition
Working mode : Rotation with percussion
Measured and evaluated in conformity with CE Regulations.
20.0 m/s2
18.0 m/s2
16.0 m/s2 18.5
16.2 16.3
14.0 m/s2
Vibration
14.7
12.0 m/s2 14.0
13.0
10.0 m/s2
8.0 m/s2
6.0 m/s2
4.0 m/s2
2.0 m/s2
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Sound pressure level
Working mode : Rotation with percussion
Measured and evaluated in conformity with CE Regulations.
100 dB
90 dB
91 95
80 dB 87
Sound pressure level
89 89 90
70 dB
60 dB
50 dB
40 dB
30 dB
20 dB
10 dB
MAKITA Competitor A Competitor D Competitor E Competitor C Competitor B
BHR200S Model A Model D Model E Model C Model B
Repair P 11 / 23
Lubrication
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 Inside of plane bearing 26
(22) Tool holder
Whole Inner part of tool holder
(23) Steel ball 7.0
Grooved portion for O ring
(29) Striker
(30) Piston cylinder Inside of perforated holes
(38) Spur gear 10 Cam portion
(39) Clutch cam
Cam portion
(40) Cam shaft Whole part
(41) Swash bearing 10 Cam and shaft
Repair P 12 / 23
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.
Cap 31
Chuck cover
Pull down
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
Chuck ring Tool holder
with 1R003
"retaining ring plier".
Fig. 4 Fig. 4A
Repair P 13 / 23
< 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
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.
Ball bearing 6905LLB
Tool holder.
Spur gear 49
Plane bearing 26
Piston joint
Ring spring 26 Piston cylinder
Flat washer 29 Compression spring 29
(2) Remove the following parts from tool holder. Fig. 6
* Oil seal 25 * Ball bearing 6905LLB * Plane bearing 26
* Piston joint * 2 pcs. of flat washers 12 * Piston cylinder
* Striker
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
Striker
Flat washer 29
Piston cylinder
Flat washers 12
Ball bearing 6905LLB Compression spring 29
Fig. 7
Repair 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
Working table Fig.8
(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
O ring case Fig. 10A
Fig. 10
Repair 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
< Note >
Press "round bar for arbor 7mm" vertically.
1R236 Otherwise, impact bold can not be removed,
"Round bar for arbor 7mm" because "the round bar for arbor" may sticks
into the space between the tool holder
and impact bolt as illustrated in Fig. 12A.
Fig. 12
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
Repair P 16 / 23
(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
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
Repair P 17 / 23
< 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.
Armature (including zerol bevel gear 11,
ball bearing 608LLU, fan 64, and
ball bearing 626DDW)
Yoke unit
< Note > Ball bearing 626DDW attached on
Housing L the commutator side, is not
assembled by pressing.
Be careful not to lose ball
bearing 626DDW, when removing
armature.
Brush holder
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.
Fig. 18
(2) Assemble yoke unit and armature to housing L
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.
Repair P 18 / 23
< 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
Lock button has to be pressed
Change lever
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
Top view of the above parts Side view of the above parts
assembled to guide plate
Compression spring 4
Compression spring 4
Change plate
Change plate
Guide plate
Fig.22A Fig. 22B
Set the under edge of the change Fig 22C
plate to the rib of guide plate.
Repair P 19 / 23
< 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)
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 1R248 "Round bar for arbor 22mm"
"Round bar for arbor 22mm" until it fits in the groove Ring spring 21
which is grooved inside of tool holder. See Fig. 25.
And make sure that the ring spring 21 is fit in the groove.
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 1R272
"Ring Spring Setting Tool A
Compression spring 29 Flat washer 29 has to Ring spring 26 side
be faced as Fig. A,
when assembling. Fig. A
Spur gear 49 Spur gear 49 side
Set cam bulge of spur gear 49
in the concave portion of tool holder
Tool holder Fig. 26
< Note > Be careful, not to hurt yourself with this edge, because
it is sharpened.
1R272
Ring Spring Setting Tool A
Repair 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.
Tool holder
1R273 Flat washer 29
"Ring Spring Compression
Setting Tool B" 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 Plane bearing 26
(for shaft) Flat washers 12
Striker with Piston joint
Tool holder section assembled
Oil seal 25 Ball bearing as per < 11 > O ring 15
6905LLB
Do not assemble striker with O ring 15,
Hammer bit Side Ball bearing 6905LLB side
as illustrated above.
Oil seal 25 has to be faced as illustrated above.
Repair P 21 / 23
< 13 > Assembling chuck section
(1) Assemble the following parts to the tool holder as illustrated in Fig. 29.
* Guide washer * Steel ball 7.0 * Leaf spring 26 * Compression spring 35 * Ring spring 30.5
* Chuck ring * Pin 8 * Ring spring 17 * Spring guide
Compression
Ring spring 30.5 Ring spring 17
spring 35 Guide washer
Pin 8 Tool holder
Spring guide Chuck ring
Leaf spring 26 Steel ball 7.0
Fig. 29 Guide washer has to be faced as
illustrated below.
Chuck ring
Leaf spring 26
Chuck ring Side of Side of
Leaf spring 26 tool holder
Leaf spring 26
The concave portion of leaf sing 26
has to be aligned with the same of The hole of leaf spring 26
chuck ring as illustrated above. 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 Retaining Ring S Plier
(1R003)
Fig. 30
< 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
Repair P 22 / 23
< 15 > It is recommended to replace the following parts in the square, when replacing carbon brush.
Compression
Ring spring 30.5 Ring spring 17
spring 35 Guide washer
Pin 8 Tool holder
Spring guide Chuck ring
Leaf spring 26
Steel ball 7.0
Piston cylinder
Plane bearing 26
Flat washers 12
O ring 15 Piston joint
Tool holder section assembled Striker
as per < 11 >
O ring 11 to be assembled
Tool holder Impact bolt to O ring case
Ring 12
O ring case
O ring 12 O ring 12
(Thin type) for (Thick type)
impact bolt
P 23 / 23
Circuit diagram
Brush holder
M2 (Housing R side)
Orange Red
A
M1
Black Black Brush holder
(Housing L side)
Wiring diagram
Put slack part of lead wires Pass lead wires between boss
here. and inner wall of housing.
Bend the connecting terminals of
brush holders' lead wires as illustrated
Boss below, when they are connected with
switch.
Bend approx.
45