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MAINTENANCE
Chain Tension
The Transmission #40 Seed Meter Boxes Drive Chain
and #40 Agitator Box Drive Chain tension should have
about 1/8" to 1/4" slack. The #60 Primary Drive Chain
tension should have about 3/8" to 1/2" slack. See
Figure 4-15.
To adjust, loosen the appropriate Tension Idler Hardware
and move the Tension Idler until the designated slack is
achieved. Retighten the Tension Idler Hardware.
IMPORTANT
Tillage Rotor must be parallel to the Drive Rotor after
adjusting the Chain Tension.
Nut,3/8-16
Adjuster Block
Adjuster Plate
Drive Rotor
LH Rotor
Swing Arm
4-12
TABLE OF CONTENTS
Flange Locknut,
3/8-16
Flange
Locknut,1/2-13
Adjuster Plate
Shaft
distance between
Rotors must be
equal on each side
Figure 4-14: Chain Tension - #80-2
The #80-2 Rotor Drive Chain tension should have about
3/16" to 1/4" slack. See Figure 4-14.
To adjust, loosen the 1/2-13 Hardware that mounts the
Adjuster Plates to the RH and LH Swing Arms. Loosen
and back-off the 3/8-16 Nuts. Turn the 3/8-16 Flange
Locknuts equally on each side until 3/16" to 1/4" of slack
is achieved. Tighten 3/8-16 Nuts. Secure the Adjuster
Plates to the RH and LH Swing Arms by retightening the
1/2-13 Hardware. It is important that the Tillage Rotor
remains parallel to the Drive Rotor after adjusting the
Chain Tension.
Tillage Rotor
Sprocket
1/4"
Slack
3/16"
Drive Rotor
Sprocket
Flange Locknut,
3/8-16
Nut,3/8-16
Locknut,1/2-13
#80-2 Rotor
Drive Chain
RH Rotor
Swing Arm
Tillage Rotor
Shaft
Adjuster Block
Flange
F-1097-2305
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