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T
ECHNICAL INFORMATION
Subject Change of Pipe Damper (1), Pipe Bracket (1), Pipe Bracket (2)
Y02935
(Page 1 of 2)

MS220, MS221, MS250, MS251, PE250, RBC220, RBC221, RBC225, RBC226, RBC250,
For Models
RBC251, RBC255, RBC256, RBE250
Country All countries
Description Pipe Damper (1), Pipe Bracket (1) and Pipe Bracket (2) have been changed as shown below.

Pipe Damper (1)




Shaft Pipe
Pipe Bracket (1)
(6251506602)
Pipe Bracket (2)
(62151509600)


Engine Cover Complete Pipe Damper (2)
Pipe Damper (1)

Current New
Pipe Damper (1) Pipe Damper (1)
(6251506601) (6251506602)


(Cross section) (Cross section)

The shape has been changed in this area.

Pipe Bracket (1)

Current New
Pipe Bracket (1) Pipe Bracket (1)
(6251506801) (6251509500)
Rib has been added for reinforcement.
15 mm (9/16") 18 mm (11/16")




Pipe Bracket (2)

Current New
Pipe Bracket (2) Pipe Bracket (2)
(6251506901) (6251509600)
15 mm (9/16") 18 mm (11/16")
Y02935
(Page 2 of 2)
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Pipe Damper (1) Pipe Damper (1)
See below 1 1
6251506601 6251506602
Pipe Bracket (1) Pipe Bracket (1) Interchangeable
See below 1 No 1
6251506801 6251509500 as a set
See below Pipe Bracket (2) 1 No
Pipe Bracket (2) 1
6251506901 6251509600
Interchangeability mark ;
The arrow means that the new part can be substituted for the current.
Note: The current Pipe Brackets (1) and (2) remain available for replacement.
Item No. of Pipe Damper (1)
Model MS220 MS221 MS250 MS251 PE250 RBC220 RBC221 RBC225 RBC226 RBC250 RBC251
Item No. 073 083 073 078 073
Model RBC255 RBC256 RBE250
Item No. 078 083
Item No. of Pipe Bracket (1)
Model MS220 MS221 MS250 MS251 PE250 RBC220 RBC221 RBC225 RBC226 RBC250 RBC251
Item No. 071 085 071 076 071

Model RBC255 RBC256 RBE250
Item No. 076 085
Item No. of Pipe Bracket (2)
Model MS220 MS221 MS250 MS251 PE250 RBC220 RBC221 RBC225 RBC226 RBC250 RBC251
Item No. 072 086 072 077 072
Model RBC255 RBC256 RBE250
Item No. 077 086

Note
Instructions when repairing
When the current parts have been replaced by the new parts, the length of fit of Shaft Pipe to be inserted becomes longer
by 3 mm as illustrated below. Therefore, always make sure that Shaft Pipe has been inserted to the proper position.
Insufficient insertion of Shaft Pipe may cause failure and excessive load to main unit of machine; for example, the blade
does not rotate.
(For machines using the current parts) (For machines using the new parts)
60 mm 63 mm
(2-3/8") 15 mm (2-1/2") 18 mm
(9/16") (11/16")




Shaft Pipe Shaft
When re-assembling Control Lever Assembly on the models below, mount the control lever assembly in the position
as shown below.
(For machines using the current parts) (For machines using the new parts)
60 mm 65 mm
(2-3/8") (2-9/16")



(Applicable Models: MS221, MS2201, MS251, MS2501, RBC221, RBC226, RBC251, RBC256, RBC25A,
RBC253, RBE250, PE250)
Implementation
From July,1996 production