Page 1
T
ECHNICAL INFORMATION
54347
Subject
For Models
Description
Change on chuck system
HR160D/DW/DWH, HR2400
The current swivel-chuck system has been changed to a slide-chuck system to install a bit more
easyly. With this change of system, the following parts have been changed ;-
Current
Current swivel-chuck system can accept both Makita slotted shank bit and SDS-puls bit.
134.0 126.5 25.5
4
6
5 8
7
3
10
9
1
New
New slide-chuck system (being same as the system of HR4000C) can accept only SDS-plus bit.
2
138.5
16
Make sure that a new impact bolt is to be set in the tool-holder (1) in the the right direction since the current bolt
has been modified as follows ;-
19 12 18 15
20
14
11
17
13
132.5 35.5
1
Current
3
2
New
Front
The shorter side The longer side The longer side The shorter side
Front
Page 2
Interchangeability(I/C)
Item No. Current part
17
39
67
66
70
65
Tool Holder
322553-2
Impact Bolt
322586-7
Gear Housing Comp
8
159594-3
Cap 37
286234-1
Change Ring Comp.
154404-9
Change Ring Cover
415076-8
Ring 20
74
257172-4
Steel Ball 7.1
73
216009-4
0 Ring 10
71
213068-9
Roller 7
322517-6
Tool Holder Ass'y
134714-0
Q'ty I/C
1
No.
1
No.
No.
1
1
1
1
1
1
1
2
1
No.
New part Q'ty
Tools Holder
323725-2
Impact Bolt
323723-6
Gear Housing
Comp.
150822-9
Cap 31
286248-0
Chuck Ring
323724-4
Steel Ball 7.0
216022-2
Compression
233203-3
Pin 8
256447-8
Compression
Spring 20
233202-5
Leaf Spring 26
232177-5
Spring Guide
344574-4
Chuck Cover
416410-5
Ring Spring 16
231979-6
Tool Holder Ass'y
134813-8
Spring 38
1
1
1
Interchangeable as a set
1
1
1
1
1
1
1
1
1
1
1
Implementation
HR2400 : From serial No. 159845E (Oct.,1997)
HR160/DW/DWH : From serial No. 500519E (July, 1997)
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