MacDon R1 Series Operator's Manual page 135

2. Turn jam nut (A) counterclockwise to unlock tension
adjustment.
3. Turn jam nut (A) and adjuster nut (B) counterclockwise to
fully collapse tensioner spring (C) and release the tension
from conditioner drive belt (D).
4. Remove drive belt (D).
5. Measure and record the distance from the shaft end to
taper lock bushing face (A) on both pulleys.
6. Remove three bolts (B) and insert them into the three
threaded bores.
7. Apply uniform pressure to the taper lock bushing by slightly
tightening each bolt in a circular pattern until the taper lock
bushing comes free.
8. Repeat Step 6, page 117
second pulley.
9. Swap the pulleys.
262634
and Step 7, page 117 on the
OPERATION
Figure 3.133: Drive Belt and Pulleys on Left Side
– Rotary Disc Pull-Type
B
Figure 3.134: Drive Belt and Pulleys on Left Side
– Rotary Disc Pull-Type
117
A
B
C
D
A
Revision A