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T
ECHNICAL INFORMATION 47453
Subject Change on method of installing the sprocket
For Models 2012 (Planer)
Description 1. The woodruff key which is currently independent part will be incorporated
into the sprocket 12.
2. The key groove in the screws R and L will be changed in shape.
3. The retaining ring S-12 to retain the sprocket 12 on the screw R will be
changed to a hex lock nut M6-10.
Note The retaining ring S-12 on the screw L will remain unchanged.
Current
Enlarged drawing
Screw R
Woodruff key 4
Base complete
Sprocket 12
Enlarged drawing
Retaining ring S-12
New
Enlarged drawing
Screw R
Base complete
Key is incorporated
into sprocket
Flat washer 12
Sprocket 12
Flat washer Enlarged drawing
Hex lock nut M6-10
Note the following when installing the new type parts.
* Apply grease to the portion (A) between the base complete and the flat washer 12.
*Tighten the hex lock nut M6-10 so that there is no gap in the portions (A) and (B), and the screw R can be turned smoothly.
Screw R
Base complete
Flat washer 12 A
Sprocket 12
Flat washer 6 B
Hex lock nut M6-10
Interchangeability(I/C)
Item No. Current part Q'ty New part Q'ty I/C Note
Screw R Screw R
119 1 1 No
322332-8 322749-5
Sprocket 12 Sprocket 12
53 1 1 No
221517-2 221520-3
Woodruff key
45 1 Interchangeable
254001-2
Retaining ring S-12 Hex lock nut M6-10 as a set
154 1 1 No
961052-5 252014-7
Flat washer 6
155 1
253196-8
Flat washer 12 1
156 253759-0
Screw L Screw L
148 1 1 No
322228-3 322750-0
Sprocket 12 Sprocket 12 Interchangeable
53 1 1 No as a set
221517-2 221520-3
Woodruff key 1
45
254001-2
Implementation
From serial No. 61906E