Table of Contents
Advertisement
Quick Links
T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
The above models are the advanced version of MAKITA's
famous 3 -modes rotary hammer HR2400.
Each new model features :
HR2450 : with variable speed and reverse switch
HR2451 : with variable switch without reverse switch
HR2452 : with single speed switch without reverse switch
S
pecification
Voltage (V)
110
120
220
230
240
Model No.
Power input : W
No load speed : (min
Blows per min, :(bpm=min
Single blow energy ( J )
Variable switch
Reverse switch
SDS max
SDS plus
Bit type
SDS top
Spline
Hex
Max. diameter : mm (")
Max. core bit diameter: mm (")
Protection from electric shock
Cord length : m ( ft )
Net weight :Kg (lbs )
S
tandard equipment
* Stopper pole ........................................... 1 pc.
* Side grip ................................................. 1 pc.
* Plastic carrying case ............................... 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
HR2450, HR2451, HR2452
24mm (15/16 " ) Rotary Hammer
Current (A)
Cycle (Hz)
7.5
50 / 60
6.7
50 / 60
3.7
50 / 60
3.6
50 / 60
50 / 60
3.4
HR2450
780
= rpm)
0 - 1,100
-1
0 - 4,500
-1)
2.7
Yes
Yes
SDS
MAX
SDS
top
* 24 (15/16 )
54 (2-1/8 )
by double insulation by double insulation by double insulation
** 4 (13.1)
2.4 (5.3)
* 25mm (1") for USA.
** 2.5m (8.2) for Asia ** 2.0m (6.6) for Australia
Dimensions : mm ( " )
Length ( L )
360 (14-1/8)
Height ( H )
204 (8)
Width ( W )
72 (2-13/16)
Continuous Rating (W)
Input
Output
780
370
780
370
780
370
780
370
780
370
HR2451
HR2452
780
0 - 1,100
0 - 4,500
2.7
Yes
No
* 24 (15/16 )
* 24 (15/16 )
54 (2-1/8 )
54 (2-1/8 )
** 4 (13.1)
** 4 (13.1)
2.4 (5.3)
2.4 (5.3)
PRODUCT
P 1 / 19
L
W
Max. Output(W)
650
650
650
650
650
780
1,100
4,500
2.7
No
No
H
Advertisement
Table of Contents
Related Manuals for Makita HR2452
Summary of Contents for Makita HR2452
- Page 1 HR2450 : with variable speed and reverse switch HR2451 : with variable switch without reverse switch Dimensions : mm ( " ) HR2452 : with single speed switch without reverse switch Length ( L ) 360 (14-1/8) Height ( H )
- Page 2 P 2 / 19 eatures and benefits HR2450, HR2451, HR2452 In-line and ergonomical designed palm fitting soft grip Lock button on change lever for firmly holding the position of Built-in torque limiter selected mode Lock ON button Palm fitting soft grip...
- Page 3 *HR2440 HR2400 * A-1 Variable speed+Reverse * A-2 * HR2451 *HR2441 Variable peed Specifi- HR2452 HR2442 cations Single peed Power input : W * 0 - 1,100 * 0 - 1,100 * 0 - 870 No load 0 - 1,200...
- Page 4 * Pressure added to the products : 80 N 350Kg/cm2 * Working mode : Rotary hammer Comparison in hammer drilling Bit diameter : 6.5mm MAKITA HR2450 MAKITA HR2440 MAKITA HR2400 Competitor A A-1 Bit diameter : 8.5mm MAKITA HR2450...
-
Page 5: Table Of Contents
< 1 > Lubrication Apply the following MAKITA grease to protect parts and product from unusual abrasion. * Grease RA No.1 (Brown) to the portions marked with black triangle * Grease FA No.2 to the portions marked with gray triangle... -
Page 6: Cap 35
P 6 / 19 epair < 2 > Disassembling chuck section 1. Slide chuck cover in the direction of gear housing, and pull out cap 35 by turning. See Fig. 1. 2. Take off ring spring 19. Then, the following parts can be disassembled from tool holder. See Fig. 1A. * Chuck cover * Ring 21 3. - Page 7 P 7 / 19 epair < 4 > Disassembling change lever 1. Separate cap from change lever. See Fig. 1. 2. Fully turn change lever in the direction of drill mode. Then, change lever can be pulled out from gear housing. See Fig.
-
Page 8: Piston Cylinder
P 8 / 19 epair < 6 > Disassembling armature 1. Disassemble handle cover by unscrewing tapping screw 4 x 25. And disassemble carbon brushes as illustrated in Fig. 4. 2. Separate gear housing together with armature, from motor housing by unscrewing tapping screws 4 x 45 as illustrated in Fig. -
Page 9: Spur Gear 51
P 9 / 19 epair 5. Ring spring 28 can not be removed without pressing washer 30 down to the spur gear 51 side, because it is assembled between tool holder and washer 30. See Fig. 5B. 6. Disassemble ring spring 28 with retaining ring plier, pressing washer 30 down to the spur gear 51 side as illustrated in Fig. - Page 10 P 10 / 19 epair < 9 > Disassembling impact bolt 1. Referring to < 7 > Disassembling tool holder section at page 8 and 9, disassemble ring spring 28, washer 30, compression spring 31 and spur gear 51 from tool holder. See Fig. 5, Fig. 5A, B, C, D and E. 2.
- Page 11 P 11 / 19 epair 4. Insert "No.1R236 Round bar for arbor" and push ring spring 28 as deep as possible to the inner housing side by striking the round bar for arbor as illustrated in Fig. 6C. 5. Pick up ring spring 28 with plier and take off it from tool holder as illustrated in Fig. 6D. 6.
- Page 12 epair P 12 / 19 < 12 > Disassembling swash bearing 1. Referring to at page 8, disassemble the product in the order of Fig.4, Fig.4A and Fig.4B at page 8. And separate inner housing together with tool holder section and swash bearing section from gear housing as illustrated in Fig.
-
Page 13: Clutch Cam
P 13 / 19 epair 6. Reassemble swash bearing section temporarily to gear housing, and hold gear housing as illustrated in Fig. 8H. So, swash bearing section tilts in the direction of arrow. Keeping the illustrated position, disassemble swash bearing section by striking the edge of gear housing with plastic hammer. - Page 14 < 14 > Assembling swash bearing section to piston cylinder 1. Apply MAKITA grease to piston cylinder and swash bearing 10 referring to < 1 > Lubrication at page 5. 2. Assemble 2 pcs. of flat washers 12 and piston joint to piston cylinder as illustrated in Fig. 11.
- Page 15 9. Assemble compression spring 6 and flat washer 5 to the pin of inner housing. And fix them with stop ring E-5 as illustrated in fig. 11G. 10. Apply 55g of MAKITA grease RA No.1in gear housing. Change plate Change plate...
- Page 16 < 16 > Assembling needle bearing complete 1. Apply MAKITA grease RA No.1 to the inside of needle baring complete. 2. Putting needle bearing complete on No.1R165 "Ring spring setting tool B" press gear housing onto the needle bearing complete with arbor press as illustrated in Fig. 13.
- Page 17 Switch C1 C2 Power supply cord Noise suppressor For some countries, noise Model HR2451, HR2452 without reverse switch suppressor of two lead wire Color index of lead wires type is used, or noise suppressor Black is not used.
- Page 18 P 18 / 19 iring diagram Model HR2450 with reverse switch Fix field lead wire (black) with lead holder as per Fix field lead wire (black) the illustration. with lead holder as per the illustration. Fix noise suppressor's lead wire (see-through) with lead holder as per the illustration.
- Page 19 P 19 / 19 iring diagram Model HR2451, HR2452 without reverse switch Fix brush holder's wire (red) with lead holder as per Fix field lead wire (black) the illustration. with lead holder as per the illustration. Fix noise suppressor's lead wire (see-through) with lead holder as per the illustration.