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T ECHNICAL INFORMATION 54347
Subject Change on chuck system
For Models HR160D/DW/DWH, HR2400
Description 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 9 10 1 2
New
New slide-chuck system (being same as the system of HR4000C) can accept only SDS-plus bit.
138.5
16 19 12 18 15 17 13 3
132.5 35.5
20 14 11 1 2
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 ;-
Current New
Front Front
The shorter side The longer side The longer side The shorter side
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty
Tool Holder 1 No. Tools Holder 1
17
322553-2 323725-2
Impact Bolt 1 No. Impact Bolt 1
39
322586-7 323723-6
Gear Housing Comp Gear Housing 1
1 No.
8 Comp. Interchangeable as a set
159594-3 150822-9
Cap 37 Cap 31
67 1 1
286234-1 286248-0
Change Ring Comp. Chuck Ring 1
66 1
154404-9 323724-4
Change Ring Cover
70 1
415076-8
Ring 20
74 1
257172-4
Steel Ball 7.1 Steel Ball 7.0
73 1 1
216009-4 216022-2
0 Ring 10 1 Compression Spring 38
71 1
213068-9 233203-3
Roller 7 2 Pin 8 1
65
322517-6 256447-8
Compression
Spring 20 1
233202-5
Leaf Spring 26 1
232177-5
Spring Guide
1
344574-4
Chuck Cover 1
416410-5
Ring Spring 16
1
231979-6
Tool Holder Ass'y 1 No. Tool Holder Ass'y
1
134714-0 134813-8
Implementation
HR2400 : From serial No. 159845E (Oct.,1997)
HR160/DW/DWH : From serial No. 500519E (July, 1997)