MacDon R85 Operator's Manual page 147

1. Lower header to ground, turn off engine, and
remove key.
2. Open the driveshield. See Section
page 28.
3. Check that adjuster nuts (A) and (B) are tight.
4. When properly tensioned,
should measure approximately 5-9/16 to 5-15/16 in.
(141–151 mm) in length.
169455
MAINTENANCE AND SERVICING
5.4 Driveshields,
tensioner spring (A)
139
Figure 7.59
Figure 7.60
Figure 7.61
Rev. E