MacDon R113 Operator's Manual page 140

1. Check and replace bolts under the following conditions:
•
Bolt has been removed and reinstalled five times.
•
Head (A) is worn flush with bearing surface of blade.
•
Diameter of bolt neck (B) has worn to 14.5 mm
(9-1/16 in.) or less.
•
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 4.47: Discblade Bolts
128
D
E
E
A
B
C
D
Revision A