MacDon R1 Series, Operator'S Manual

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109
Revision A
1010614
A
B
Figure 3.135: Drive Belt and Pulleys on Left Side
–
Rotary Disc Pull-Type
4. Measure and record the distance from the shaft end to
taper lock bushing face (A) on both pulleys.
5. Remove three bolts (B) and insert them into the three
threaded bores.
6. Apply uniform pressure to the taper lock bushing by slightly
tightening each bolt in a circular pattern until the taper lock
bushing comes free.
7. Repeat Step 5, page 109 and Step 6, page 109 on the
second pulley.
8. Swap the pulleys.
1010614 10106151010615
A
Figure 3.136: Drive Belt and Pulleys on Left Side
–
Rotary Disc Pull-Type
9. Slip taper lock bushing (A) onto the shaft at the same depth
measurement recorded in Step
4, page 109 . The pulley will
be drawn into the taper lock when tightening.
10. Repeat Step 9, page 109 for the second pulley.
11. Verify pulley face alignment by using a long, verified
straight edge, and bridge both faces to a tolerance of 5 mm
(3/16 in.).
1022665
A
B
C
Figure 3.137: Jam Nut and Adjuster Nut on Left Side
of Rotary Disc Pull-Type
12. Install drive belt (A).
13. Remove jam nut (B).
14. Turn adjuster nut (C) to remove all slack from the tensioner.
OPERATION