Makita HR2430 Manual

Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max. Output(W)
100
110
120
230
Models No.
Description
PRODUCT
Current (A)
TECHNICAL INFORMATION
CONCEPTION AND MAIN APPLICATIONS
Specification
Standard equipment
Optional accessories
< Note > The standard equipment for the tool shown may be differ from country to country.
HR2430, HR2431
Rotary Hammer 24mm
These models are designed mainly for use in dust sensitive
environments.
With all the benefits of our existing Model HR2410/HR2420,
they feature efficient built-in Dust Extraction System,
which is especially convenient in overhead applications.
Model HR2431 is the "D"-handle version of HR2430.
Plastic carrying case ......... 1 pc.
Grease for bit .................... 1 pack.
Cap .................................. 1 pc.
W
W
L
L
H
H
CT
CT
HR2431
Dimensions : mm ( " )
Model No. HR2430 HR2431
Length (L)
Width (W)
Height (H)
Center Height(CH)
416 (16-3/8)
70 (2-3/4)
197 (7-3/4)
34 (1-5/16)
477 (18-3/4)
156 (6-1/8)
70 (2-3/4)
34 (1-5/16)
7.5(only HR2430)
6.8(only HR2430)
3.2
50 / 60
50 / 60
50 / 60
50 / 60
710
710
710
710 200
150
150
150
600
550
550
550
HR2430
No load speed : (min -1= rpm)
Blows per min. : (min -1= bpm)
Bit type SDS-plus 10mm (3/8") in dia.
Drilling
capacity : mm ( " )
in Steel
in Wood
in Concrete
Reversible switch
0 - 1,050
0 - 4,900
6.2
13 (1/2)
24 (15/16)
32 (1-1/4)
HR2430 for Canada : 25 (1)
HR2431 for U.S.A. : 25 (1)
HR2430 : 2.6 (5.7) HR2431: 2.8 (6.2)
Net weight : Kg ( lbs )
Cord length : m ( ft ) 2.5 (8.2)
T.C.T. drill bit 4.0 - 24 mm (5/32" - 15/16")
Drill chuck assembly
Chuck key S13
Anchor setting tool
Anchor setting rod No.2, No.2.5, No.3, No.4
Grease vessel
Blow out bulb
Depth gauge
Cuff 19-25
Available
Dust extraction fixture....... 1 pc.
Hose .................... 1 pc.
Dust bag ........................... 1 pc.

Durable Hose
Built-in Self Dust Extraction System
provides dust-free operation.
Especially convenient in overhead applications.
Dangling-free hose
is positioned parallel with
motor housing for less chance
of getting caught or damaged.
Never hangs loosely
even in overhead applications.
And durable.
Durable Dust Bag with Frame
Fastest drilling speed in its class
Numbers in chart below are relative values when setting HR2430
and HR2431's capacity as 100.
Testing bit : 12.5mm in diameter
MAKITA HR2430
Competitor A Mod. A
Competitor B Mod. B
Competitor C Mod. C
100
60
80
80
Cuff 19-25 (optional accessory)
for connection with vacuum cleaner.
HR2430
HR2431
Features and benefits
D-type handle
Pistol-type handle

COMPARISON CHART
Makita
Model No.
(1) Specifications
(2) Drilling Speed
HR2430
One-action bit change-over
24 [15/16"]
Continuous Rating Input (W)
Blows per minute (min-1)
Estimate
Mode Change
Center Height (mm)
Carrying
case
No load speed (min-1, rpm)
Material
can put the tool
with dust
extraction system
Energy of
blow (J)
*Net
weight (kg)
Catalogue
710
1-1,050
Yes
Standard Equipment
*Net weight does not include Dust extraction fixture, Hose, Dust bag and Side grip.
620
750
0-980
0-4,900
0-800
0-4,000
Plastics
Dimensions
2.6
(5.7lbs)
0-4,550
Capacity Concrete (mm)
Catalogue
Actual
HR2431
2.0
2.0
2
34 [1-5/16"]
Yes
2.66
(5.87lbs)
2.8
(6.2lbs)
2.8
(6.2lbs)
Makita
HR2410
Model A
Makita
HR2430/HR2431 Model B
Makita
Competitor A
Competitor B
HR2410
Model A
24 [15/16"] 24 [15/16"] 17.5 [11/16"] 22 [7/8"] 24 [15/16"]
500 500 680
1-1,050 1-1,100 1-1,050
0-4,900
0-3,900
0-4,400
2.0
2.0
2.0
2.0
2.0
2.0
1.8
2.0
1.8
2.0
2
2
2
2
3
37 [1-7/16"] 52 [2-1/16"] 30 [1-3/16"] 27 [1-1/16"] 30 [1-3/16"]
Yes
Yes
Yes No No
Plastics Plastics Plastics Steel
Steel
Yes Yes
No No
416
197
70
477
156
70
185
220 192 208 197
3.3
(7.3lbs)
3.3
(7.3lbs)
2.69
(5.93lbs)
2.6
(5.9lbs)
2.6
(5.9lbs)
2.58
(5.85lbs)
3.6
(7.9lbs)
4.1
(9.0lbs)
2.3
(5.1lbs)
2.4
(5.29lbs)
Dust extraction
fixture
Dust bag
Cap
Bit grease
Carrying case
(plastic)
Depth gauge
Carrying case
(plastic)
Dust extraction
fixture
Dust bag(cloth)
Cap
Dust extraction
fixture
Dust bag(cloth)
Cap
Dust extraction
fixture
Dust container
Cap
Depth gauge
Grease
Suction head
Dust seal
Dust extraction
fixture
Dust bag(felt)
Dust bag(paper)
Cap
Bit grease
Paper bag
adapter
24mm(15/16") class 22mm(7/8") or under
Fast
Slow
120
100
80
60
40
20
0
Tested with Tungusten-carbide Tipped Bits ø8.0, ø10.0 and ø12.5mm and without using extension cord.
And we had the same result on each bit as illustrated below.
Numbers in chart below are relative values when setting HR2430's speed as 100.
100
80 80
100
60 60
L mm
H mm
W mm
410
116
374
76
340
70
388
78
371
70
Competitor
A
Competitor
C
Competitor
B
Model C Model B-2
Model B-2
Competitor B
Model C
Competitor C
Competitor
B
Model B

COMPARISON CHART
(4) Noise
Tested under loaded conditions in "drill with hammering" mode.
Measured and evaluated in conformity with CE Regulations.
Tested under loaded conditions in "drill with hammering" mode.
Measured and evaluated in conformity with CE Regulations.
(m/s2)
Makita
HR2430/HR2431 Model B
Makita
Competitor A HR2410
Model A Model B-2
24mm(15/16") class 22mm(7/8") or under
6
8
10
12
14
4
2
0
Makita
HR2410
9.3 10.6
8.8
10.1
6.8
11.8
89 89
94 93
84
91
Makita
HR2430/HR2431
24mm(15/16") class 22mm(7/8") or under
80
85
90
95
75
(dB)
(3) Vibration
Competitor B Competitor BCompetitor C
Model C
Model B
Competitor B Competitor A
Model A
Competitor C
Model C Model B-2
Competitor B

Repair
<1> Removing chuck section
1) Pull down chuck cover and remove cap 31. And then, remove chuck cover and compression spring 38
as illustrated in Fig.1.
Cap 31
Chuck cover
Compression
spring 38
Spring guide
Tool holder
Fig.1
Ring spring 17
Spring guide
Ring spring 30.5
Compression
spring 35
Leaf spring 26
Chuck ring
Guide washer
Tool holder
Pin 8
Steel ball 7.0
2) Remove ring spring 17. (See Fig.2.)
3) Remove ring spring 30.5 from chuck ring, and then, remove spring guide and compression spring 35.
(See Fig.2)
4) Take off leaf spring 26. And then, remove pin 8 from chuck ring. (See Fig.2)
Leaf spring 26 can be removed easily by expanding it with retaining ring plier for shaft .
5) Remove chuck ring , guide washer and steel ball 7.0 from tool holder. (See Fig.2)
<2> Removing gear housing section
Loosen pan head screw M4. But stop to loosen, when the screw
comes to the position as illustrated in Fig.3. Adjust change lever as illustrated
in Fig.3A and pull out it from gear housing.
Fig.2
Pan head screw M4
Fig.3
Approx.
4 - 5mm
Position of change lever
when removing.
Fig.3A

Repair
Remove tool holder with arbor press as illustrated in Fig.4.
Tool holder
Fig.4
<3> Removing impact bolt
1. Push impact bolt ahead with screwdriver
as illustrated in Fig.5.
Fig.5
Impact bolt
Steel ball 5.6
Fig.5A
Fig.5B
Fig.5C
4. Remove impact bolt by pushing it with
screwdriver as illustrated in Fig.5C.
3. Take off O ring 11 with a bodkin as illustrated in
Fig.5B.
2. Take off steel ball 5.6 by striking stool holder
with plastic hammer slightly as illustrated in
Fig.5A
O ring 11

Repair
<4> Removing crank section
A. Removing piston cylinder
Shift piston cylinder to tool holder side by
turning crank shaft as illustrated in Fig. 6.
Take off pin 6 with screwdriver from
piston cylinder. Pin 6
Connecting rod
Crank shaft
Crank housing
complete
Piston cylinder
Tool holder side
Fig. 6
Inner housing
complete side
B. Removing connecting rod
Remove inner housing complete
from crank housing complete by
taking off pan head screw M4x50 (3 pcs.).
Pan head screw M4x50 (3 pcs.)
Connecting rod
Crank housing complete
Crank shaft
Inner housing complete
Crank shaft
Connecting rod
Crank housing complete
Inner housing
complete side
Tool holder side
Bring connecting rod to the inner housing
complete side by turning crank shaft as
illustrated in Fig. 6B.
Fig. 6A
Fig. 6B
Inner housing
complete side
Tool holder side
Hold the inner housing complete
side of connecting rod. And take
off connecting rod by lifting
its tool holder side as illustrated
in Fig.6C.
Fig. 6C

Repair
C. Removing helical gear 31, straight bevel gear 14 and clutch cam
Take off pan head screw M4x16 ( 2 pcs.) from
crank housing complete. And then, remove gear
cover and the unit of spur gear 10 as illustrated
in Fig.6D.
Remove helical gear 31 by pressing it with
arbor press.
And then, the spare parts on spur gear 10
can be removed as illustrated in Fig.6E.
( It is recommended to use round bar for
arbor No.1R235 6mm in dia.,
when removing with arbor press.)
Crank housing
complete
Spur gear 10Spur gear 10
Spur gear 10
Straight bevel gear 14
Clutch cam
Helical gear 31
Gear cover
Pan head screw M4x16
( 2 pcs.)
Unit of
spur gear 10
Fig.6D
Crank shaft
Press spur gear 10
with arbor press.
Flat washer 12
Compression spring 12
Clutch cam
Straight bevel gear 14
Flat washer 8
Compression spring 8
Helical gear 31
Fig.6E
D. Removing crank shaft
Set crank housing complete on No.1R215: block A
for crank housing and set No.1R234:round bar for
arbor 5mm in dia. on crank shaft.
Remove crank shaft by pressing the round bar
for arbor with arbor press.
< Note > No.1R215 block A has to be set,
paying attention to the position of its
wide surface as illustrated in Fig.6F.
28mm
45mm
No.1R215 Block A
for crank housing
Wide surface
Narrow surface
Wide surface
Narrow
surface
Press with arbor press.
1R234
Round bar for arbor
1R234 Round bar for arbor
D = 5mm
D
100mm
Crank shaft Crank housing
complete
Straight bevel gear 12
Inner housing
complete side
Tool holder side
Fig.6F

Repair
<5> Removing armature section
1) Remove brush holder from motor housing
after taking off handle cover as illustrated in Fig 7.
2) Remove fan housing from motor housing as illustrated in Fig 7.
3) Remove armature assembly together with dust cover and fan 56 as illustrated in Fig 7A.
Handle cover
Fan housing
Brush holder
Dust cover
Motor housing
Fig. 7
Fan 56 Dust cover Armature assembly
Fig. 7A
Dust guard
Ball bearing
609LLU
4) Remove dust guard and ball bearing 609LLU from armature assembly. And then, remove retaining ring S-10
as illustrated in Fig 7B.
Bearing 609LLU
Dust guard
Retaining ring S-10
Armature assembly
Fig. 7B
1R258 V Block
5) Set armature unit ( fan 56, dust cover and fan 60 ) on the 2 V-blocks.
And remove fan 56 (aluminum made) and dust cover
by pressing armature shaft. Then armature can be separated
together with ball bearing 6000LLU,
flat washer 8 and fan 60, from
fan 56 and dust cover.
Press the armature shaft
after setting on the 2 V-blocks.
Fan 56
Dust cover
Armature
Fan 60
Fan 56
Dust cover
Fig. 8

Repair
1R022 Bearing extractor plate
Fan 60
Ball bearing 6000LLU
Flat washer 10
6) Hold fan 60 with No.1R022 bearing extractor plate, and
remove ball bearing 6000LLU, fan 60 and flat washer 10
by pressing armature shaft slowly as illustrated in Fig.9.
Armature
Armature shaft
<6> Assembling armature
(1) Press fan 60, ball bearing 6000LLU and flat washer 10
all together on armature shaft as illustrated in Fig.10.
Not press them individually on armature shaft.
Fig.9
In stead of individually,
they have to be pressed
all together.
Ball bearing 6000LLU Fan 60Fan 60
Flat washer 10
(2) Press dust cover. And then, press flat washer 10 as illustrated in Fig.11.
Apply MAKITA grease N No.2 in advance approx. by 1g. on
the flat washer's surface which contacts with ball bearing 6000LLU.
Apply MAKITA grease N.No.2
approx. by 1g. on this side.
Ball bearing 6000LLU
Flat washer 10
Dust cover
Flat washer 10
Armature
Fig.10
Fig.11
Fan 56
Dust cover
Fan 60
(3) Press fan 56 as illustrated in Fig.12.
Fig.12

Repair
(4) Assemble retaining ring S-10. And then, press dust guard and ball bearing 609LLU
as illustrated in Fig.13.
Fan 56
Dust cover
Armature
Retaining ring S-10
Fig.13
Ball bearing 609LLU
Dust guard
Dust proof sheet
Plate
Fan housing
<7> Assembling fan housing section to armature section
(1) Assemble dust proof sheet to fan housing.
Pay attention to the face of dust proof sheet in order to set it in the groove of fan housing.
(2) Press plate slightly into the fan housing's groove for assembling plate through dust proof sheet.
(3) Assemble fan housing section to armature section.
Grrove for
plate assembling
Fig.14

Repair
<8> Assembling crank section
1) Assemble the following parts to crank shaft with
No.1R216 Block B for crank housing. See Fig.15.
* Ball bearing 689ZZ
* Flat washer 9
* Ball bearing 699ZZ
2) Assemble the above crank shaft to crank housing. See Fig.15.
3) Assemble the following parts to crank shaft
which has been assembled to crank housing. See Fig.15A.
* Thrust needle bearing 1224
( Apply MAKITA grease No.2 as illustrated in Fig.15A)
* Straight bevel gear 12
No.1R216: Block B for Crank Housing
Apply here
MAKITA grease No.2.
Thrust needle
bearing 1224
Straight bevel gear 12
Crank housing
Press with arbor press.
Crank shaft
Ball bearing 689ZZ
Ball bearing 699ZZ
Flat washer 9
Fig. 15
Fig. 15A
<9> Assembling impact bolt
1) Insert impact bolt into tool holder with screwdriver
as illustrated in Fig.16A. When inserting it, the
short head side of impact bolt has to be faced
to the bit side.
Fig. 16A
Impact bolt
Impact bolt
Fig. 16B
Fig. 16C
Impact bolt
O ring 11
O ring 11
Steel ball 5.6
Steel ball 5.6
Bit side Crank housing
side
Bit side
2) Assemble O ring 11 into the groove of tool holder
with finger as illustrated in Fig.16B.
3) Assemble steel ball 5.6 to the hole of tool holder
with finger as illustrated in Fig.16C.
And then, apply grease to steel ball 5.6 and
the hole of tool holder for easy assembling
tool holder to the machine without losing
steel ball 5.6.
Crank housing

Repair
<10> Assembling gear housing section
1) Press the tool holder unit into gear housing
complete with arbor press as illustrated in Fig.17.
Ring spring 26
Flat washer 29
Compression spring 29
Spur gear 48
Tool holder
Gear housing
complete
Tool holder unit
2) Assemble change lever to gear housing complete.
Change lever has to be adjusted as illustrated in Fig.18
when assembling.
Position of change lever
when assembling.
Fig.3A
<11> Lubrication
Apply grease on the following places in order to protect parts and machine from usual abrasion and overheating.
Recommendable is our genuine grease, MAKITA Grease R No1.
(1) O ring on impact bolt and the groove on impact bolt for O ring assembling
Apply grease here.
(2) O ring on striker and the groove on striker for O ring assembling
Apply grease here.
(3) Inner part, surface and groove of piston cylinder, and pin 6's surface
Surface
Inner part Groove
Pin 6

Circuit diagram
Repair
(4) Teeth of spur gear 10
(5) Clutch cam, flat washer 8 and straight bevel gear 14
Clutch cam Flat washer 8 Straight bevel gear 14
Inner part
(6) Flat washer 27
(7) Oil seal 20
Lip
(8) Gears Spur gear 48
Straight bevel gear 12
Helical gear 31
(9) Needle bearings
Needle bearing 810
assembled to crank shaft Needle bearing 709 assembled
in inner housing
Power supply cord
Noise
suppressor
12
C1M1M2
C2
12
3
4
Switch
Purple
White
Orange

Wiring diagram
Lead wire (purple) between reversible switch and brush holder
has to be passed trough the space between rib and inner wall.
Rib
Lead wire (black) between reversible
switch and main switch (ON - OFF)
has to be passed through back of the rib.
Lead wires (black and white)
of field has to be passed under
boss, and has to be guided
through guide hole.
Boss
Guide hole
Lead wires have to be
set in the lead holder.
Choke coil
Noise
suppressor
Receptacles have to
be faced to the motor
housing side as
illustrated in Fig.17A.
Fig.17A.
Fig.17
Motor housing
Receptacle
Brush holder
Receptacles have to be faced to the
bottom side of motor housing as illustrated
in Fig 17A.
If they would be faced to handle cover side,
handle cover can not be assembled to
motor housing, in case may be.