Makita HR2440 User Manual

Browse online or download User Manual for Rotary hammers Makita HR2440. Repair

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Continuous Rating (W)
Voltage (V) Cycle (Hz)
Input Output
Max. Output(W)
120
110
220
230
240
Model No.
Description
PRODUCT
Current (A)
T
ECHNICAL INFORMATION
CONCEPT AND MAIN APPLICATIONS
Specification
Standard equipment
< Note > The standard equipment for the tool shown may differ from country to country.
P 1 / 19
HR2450, HR2451, HR2452
24mm (15/16 " ) Rotary Hammer
Dimensions : mm ( " )
Width ( W )
Height ( H )
Length ( L )
360 (14-1/8)
204 (8)
72 (2-13/16)
W
H
L
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
7.5
6.7
3.7
3.6
3.4
50 / 60 780 370 650
650
650
650
650
780 370
780 370
780 370
780 370
50 / 60
50 / 60
50 / 60
50 / 60
* Stopper pole ........................................... 1 pc.
* Side grip ................................................. 1 pc.
* Plastic carrying case ............................... 1 pc.
Model No. HR2450 HR2451 HR2452
Bit type
SDS max
SDS plus
SDS top
Spline
Hex
Blows per min, :(bpm=min -1)
No load speed : (min -1= rpm)
Protection from electric shock
Net weight :Kg (lbs )
Cord length : m ( ft )
Single blow energy ( J )
Variable switch
Reverse switch
Max. core bit diameter: mm (")
Max. diameter : mm (")
SDS
MAX
SDS
top
Yes Yes
Yes
No
No
No
Power input : W
780
2.7 2.7 2.7
780 780
0 - 1,100 0 - 1,100 1,100
0 - 4,500 0 - 4,500 4,500
* 24 (15/16 )
* 25mm (1") for USA.
54 (2-1/8 )
* 24 (15/16 )
54 (2-1/8 )
* 24 (15/16 )
54 (2-1/8 )
by double insulation by double insulation by double insulation
** 4 (13.1) ** 4 (13.1) ** 4 (13.1)
2.4 (5.3) 2.4 (5.3) 2.4 (5.3)
** 2.5m (8.2) for Asia ** 2.0m (6.6) for Australia
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1 2 ... 19

Summary of Contents

Page 1 - Standard equipment

Continuous Rating (W)Voltage (V) Cycle (Hz)Input OutputMax. Output(W)120110220230240Model No. DescriptionPRODUCTCurrent (A)TECHNICAL INFORMATIONCONCEP

Page 2 - Features and benefits

RepairP 10 / 19< 9 > Disassembling impact bolt1. Referring to < 7 > Disassembling tool holder section at page 8 and 9, disassemble ring s

Page 3 - Comparison of products

RepairP 11 / 194. Insert "No.1R236 Round bar for arbor" and push ring spring 28 as deep as possible to the inner housing side by strikin

Page 4

RepairP 12 / 19< 12 > Disassembling swash bearing 1. Referring to at page 8, disassemble the product in the order of Fig.4, Fig.4A and

Page 5 - P 5 / 19

RepairP 13 / 196. Reassemble swash bearing section temporarily to gear housing, and hold gear housing as illustrated in Fig. 8H. So, swash bearing

Page 6 - P 6 / 19

RepairP 14 / 19< 13 > Assembling swash bearing section< 14 > Assembling swash bearing section to piston cylinder1. Apply grease to the par

Page 7 - P 7 / 19

RepairP 15 / 19Clutch cam Clutch camChange plateCam shaftChange plateFig. 11EFig. 11DFig. 11FFig. 11DSpur gear 10Clutch camChange plateCompression spr

Page 8 - P 8 / 19

Back sideRepairP 16 / 19< 16 > Assembling needle bearing complete 1. Apply MAKITA grease RA No.1 to the inside of needle baring compl

Page 9 - P 9 / 19

Circuit diagramP 17 / 19 Model HR2450 with reverse switchModel HR2451, HR2452 without reverse switchColor index of lead wiresBlackWhiteRedBlueSee-thro

Page 10 - P 10 / 19

Wiring diagramP 18 / 19Model HR2450 with reverse switchFix field lead wire (black)with lead holder as perthe illustration. Fix field lead wire (black)

Page 11 - P 11 / 19

Wiring diagramP 19 / 19Model HR2451, HR2452 without reverse switchFix lead wires which are passedthrough this area, with any of these lead holders.Noi

Page 12 - P 12 / 19

P 2 / 19 Features and benefitsCord guard is notonly tough but alsovery flexible toprotect cable fromdisconnection.Accepting SDS-plus shank bitSlide lo

Page 13 - P 13 / 19

Comparison of productsP 3 / 19* HR2450* HR2451HR24527802.74.0 (13.1)3 ModesRR+PP* 0 - 1,100Specifi-cationsPower input : WBit typeWorking modeVibration

Page 14 - P 14 / 19

Comparison of productsP 4 / 19Testing conditions * Materials : Concrete with compressive strength, 350Kg/cm2 * Pressure add

Page 15 - P 15 / 19

RepairP 5 / 19 < 1 > Lubrication Apply the following MAKITA grease to protect parts and product from unusual abrasion. * Grease

Page 16 - P 16 / 19

RepairP 6 / 19< 2 > Disassembling chuck section 1. Slide chuck cover in the direction of gear housing, and pull out cap 35 by turning.

Page 17 - Circuit diagram

RepairP 7 / 19< 5 > Assembling change lever 1. Apply grease to the pin of change lever and O ring 17 referring to < 1 > Lubricatio

Page 18 - Wiring diagram

RepairP 8 / 19< 6 > Disassembling armature 1. Disassemble handle cover by unscrewing tapping screw 4 x 25. And disassemble carbon brushe

Page 19

RepairP 9 / 19 5. Ring spring 28 can not be removed without pressing washer 30 down to the spur gear 51 side, because it is assembled between too

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