Service Manuals, User Guides, Schematic Diagrams or docs for : MAKITA 54257-ww-1
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T ECHNICAL INFORMATION 54257
Subject Changes on piston, striker, rings,herical gear and ball bearing
For Models HR5000,HR5000K (50mm Rotary Hammers)
Description As illustrated below, several parts have been changed to reduce damage for herical gear.
Current New
Piston Ring 40 O Ring 32
(Resin)
Piston Inner Ring 36
(Metal)
Rings
Piston Piston
Piston ring 40
O Ring 32 Striker
Striker
Striker
Rings
Inner ring 36
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Piston Piston The current can be used for
13 1 No 1 HM1200,HM1200B,HM1200K
321441-0 323750-3 HM1201,HM1211,HM1211B.
Striker Striker
7 1 No 1 Interchangeable as aaa set
322155-4 323751-1
Piston Ring 40 0 Ring 32 The current can be used for
8 2 No 2 HM1200,HM1200B,HM1200K
412049-2 213481-1
HM1201,HM1211,HM1211B.
Inner Ring 36
341862-0 1
Inner Ring 36 1
412080-8
Implementation
HR5000 : From serial No. 40695E (July, 1997)
HR5000K : From serial No. 45316E (July, 1997)
Note
Only herical gear will be changed from Sep.,1997
(Resin)
(width anddepth
have been have of
(Widthandchanged.) groove
been changed.)
of groove depth
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