Download Makita HR2450 User's Manual

1” ROTARY HAMMER V.S.
SDS-PLUS
04-2004
Model HR2450 (MCC)
Item
No.
Part
No.
No.
Used
1
2
3
4
5
6
7
8
9
10
11
12
13
14
286263-4
233915-8
417629-9
257241-1
345187-4
233916-6
921923-8
417630-4
152521-9
266069-6
417794-4
162229-7
213278-8
183441-6
1
1
1
1
1
1
1
1
1
4
1
1
1
1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
153290-5
233918-2
267228-5
233328-3
227028-5
216022-2
153365-0
267229-3
213128-7
324396-8
324218-2
213232-2
324216-6
213073-6
233917-4
324214-0
213227-5
331632-5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
33
34
267104-3
324215-8
1
1
2 Model HR2450
Description
Cap 35
Ring Spring 19
Chuck Cover
Ring 21
Guide Washer
Conical Comp. Spring 21-29
Hex. Bolt M8X120
Grip Base
Grip 36 Com.
Tapping Screw 4X45
Cap
Change Lever Com.
O Ring 17
Gear Housing Set
(Includes Item 15)
Needle Bearing Com.
Ring Spring 28
Washer 30
Compression Spring 31
Spur Gear 51
Steel Ball 7.0
Tool Holder Com.
Flat Washer 28
O Ring 12
Impact Bolt (Old 324278-4)
Ring 9
O Ring 15
O Ring Case
O Ring 9
Ring Spring 28
Striker
O Ring 16
Piston Cylinder (Silver, Flat -->
Silver, Gloss)
Flat Washer 12
Piston Joint
Item
No.
Part
No.
No.
Used
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
267104-3
211012-0
961003-8
233343-7
331634-1
324248-3
219014-0
226550-9
266273-7
345179-3
267234-0
211032-4
324212-4
213725-9
213380-7
210060-6
267231-6
240047-4
517376-3
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
55
56
57
58
59
60
62
63
64
65
66
68
69
681636-0
211021-9
266052-3
417631-2
633491-6
183409-2
689111-0
643988-7
819063-3
191927-6
643989-5
650508-0
153284-0
1
1
2
1
1
1
2
1
1
2
1
1
1
70
265999-8
1
*
Description
Flat Washer 12
Ball Bearing 606ZZ
Retaining Ring S-7
Compression Spring 7
Clutch Cam
Cam Shaft
Swash Bearing 10
Helical Gear 26
Hex Socket Head Bolt M4X12
Bearing Retainer
Flat Washer 8
Ball Bearing 608ZZ
Ring 8
O Ring 68
Inner Housing Com.
O Ring 24
Ball Bearing 609LLU
Flat Washer 9
Fan 60
Armature Assy (Includes Items
51-53, 55 & 56)
Insulation Washer
Ball Bearing 607LLB
Tapping Screw 4X60
Baffle Plate
Field
Motor Housing (Includes Item 64)
Spacer
Brush Holder
Makita Label
Carbon Brush CB-407 (2pcs/Set)
Brush Holder
Switch
Handle Cover Com. (Includes
2X263002-9 -Rubber Pin 4)
Tapping Screw 4X25
Item
No.
Part
No.
No.
Used
71
72
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
100
682559-5
664895-1
687063-9
265995-6
265999-8
421494-0
417795-2
233341-1
226399-7
265999-8
1
1
1
2
2
1
1
1
1
2
1
2
1
2
1
1
1
1
1
1
1
*
961017-7
417796-0
233344-5
961011-9
941102-2
233342-9
163430-7
345280-4
267271-4
251425-3
Item
No.
Description
Cord Guard 8
Cord With Plug 2P-18-4.0M
Strain Relief
Tapping Screw 4X18
Tapping Screw 4X25
Rubber Ring 19
Lock Button
Compression Spring 3
Spur Gear 10
Tapping Screw 4X25
Change Plate
Stop Ring E-3
Guide Base
Compression Spring 4
Stop Ring E-4
Flat Washer 5
Compression Spring 6
Lock Plate Com.
Hex. Washer
Flat Washer 9 (Add) *
(-) Flat Head Screw M6X22
Part
No.
324219-0
417724-5
1
2
Depth Gauge
Latch
Description
A03
134943-5
1
A04
A05
A06
181573-3
765009-6
421342-3
421664-1
1
1
1
1
A07
A08
A09
763047-2
122573-4
122574-2
1
1
1
A10
A11
763432-9
-----
1
1
A12
-----
1
A13
A14
A15
A16
181490-7
A-86642
191686-A
752031-2
1
1
1
1
½” Drill Chuck
Chuck Adaptor (Includes Item 100)
Drill Chuck Assy (Includes Items
A07 & A08)
Chuck Key
Bull Point, Cold Chisel, Grooving
Chisel, Scaling Chisel
(See Catalogue for Details)
Core Bit (See Catalogue for
Details)
Hammer Grease 30cc
Core Bit Adaptor (SDS Plus)
Makita Safety Glasses
Center Bit
A17
256806-6
256815-5
1
1
Rod (For 25-40mm)
Rod (For 45-118mm)
A18
824650-5
1
Plastic Carrying Case
(Includes Item A02)
Accessories
A01
A02
No.
Used
Grip 36 Assy (Includes Items
7-9 & 90)
Bit Grease
Blow-Out Bulb
Dust Cup 5 (6-14.5mm Bit Dia.)
Dust Cup 9 (12-16mm Bit Dia.)
*
SERVICE CHANGES
SEE SERVICE CHANGES
1. Modification of Inner Housing Com and Change Plate.
Item No.
Description
49
Inner Housing Com
82
Change Plate
91
Flat Washer 9
Type 1
Type 2
Type 3
153367-6
153610-3
153687-8
Implementation
345220-2
345363-0
-----
267271-4
~ Oct 2003
Nov 2003 ~
Above parts are completely interchangeable as a set.
3 Model HR2450
SERVICE NOTE
Follow these steps when replacing the Inner Housing Com and the Change Plate.
1. Remove Gear Housing Cover.
2. Remove Tool Holder section.
3. Remove two M4x12 Hex. Socket Head Bolts. (Fig. 1)
4. Remove Shaft portion and Piston Cylinder. (Fig. 2)
5. Remove Change Plate. (Fig. 3)
Fig. 1
Fig. 2
Fig. 3
6. Remove O-Ring 24 and O-Ring 68. (Fig. 4)
All steps for removal of re-use parts have now been completed.
7. Replace the current Inner Housing complete by the new one.
8. Apply 5g of Makita Grease RA No.1 as (Fig. 6)
4 Model HR2450
Fig. 4
Fig. 6
9. Install O-Ring 24 and O-Ring 68 as (Fig. 4)
Fig. 4
10. Set the new Change plate to the new Inner housing complete (Fig. 10).
Fig. 10
11. Fix The Current Shaft Section And PIston Cylinder with Inner Housing, and then secure them by screwing
the new M4x12 Hex. Socket Head Bolts (2pcs). Next, Set the following parts on Pin 6 shown in Fig 11.
• Stop Ring E-4
• Compression Spring 6
• Flat Washer 5
Fig. 11
Supplementary information: Check whether Flat Washer 9 can be seen on the Armature Shaft as Fig. 12 by removing the Armature
from the machine. If not, put Flat Washer 9 (Part No. 267271-4) as shown in (Fig 12)
5 Model HR2450