MacDon R1 Series Operator's Manual page 186

1. Check and replace bolt if:
• Bolt has been removed and installed five times
• Head (A) is worn flush with bearing surface of blade
• Diameter of bolt neck is worn (B) 3 mm (1/8 in.)
• Bolt is cracked (C)
• Bolt is visibly distorted (D)
• Bolt shows evidence of interference (E) with
adjacent parts
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MAINTENANCE AND SERVICING
Figure 4.79: Disc Blade Bolts
170
B
C
D
D
E
E
A
Revision A