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T ECHNICAL INFORMATION 49203
Subject Change on ball bearing 6303
For Models HM0810, HM0810B and HM0821 (Demolition Hammer)
Description The ball bearing 6303 (with no seal) shown in the figure below will be replaced by a ball
bearing 6303LLU (with seal).
Crank shaft
Ball bearing 6303 Ball bearing 6303LLU
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
21 Ball bearing 6303 1 Ball bearing 6303LLU 1
<=
211264-3 211279-0
Note
Interchangeability mark : <= mark indicates that the new type part can be substituted for the current type part.
Implementation
HM0810: From serial No. 239414E
HM0810B: From serial No. 19571E
HM0821: Discontinued