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Revision A
8.13
Checking Roll Tension
Roll tension is indicated by the exposed thread on the roll tension adjuster bolt.
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Figure 8.30: Roll Tension Adjuster
1.
Measure the amount of exposed thread on the roll tension
adjuster bolt (A) at each end of the conditioner.
Measurement (B) should be 12
–
15 mm (1/2
–
9/16 in.) for
polyurethane and steel roll conditioners.
2.
If the tension requires adjusting, refer to
.
8.13.1
Adjusting Roll Tension
The amount of pressure that is applied to the crop as it passes through the roll conditioner is adjusted with the roll tension
setting.
To adjust roll tension back to factory setting, follow these steps:
1.
Lower the rotary disc pull-type fully.
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Figure 8.31: Adjusting Roll Tension
2.
Loosen jam nut (A) on both sides of conditioner.
3.
Turn spring drawbolt (B) clockwise to tighten spring (C) and
increase roll tension.
4.
Turn spring drawbolt (B) counterclockwise to loosen
spring (C) and decrease roll tension.
5.
Measure the amount of exposed thread on spring
drawbolt (B) at each end of the conditioner.
Measurement (D) should be 12
–
15 mm (1/2
–
9/16 in.) for
both polyurethane and steel roll conditioners.
IMPORTANT:
Turn each bolt equally. Each turn of the bolt changes the
roll tension by approximately 32 N (7.2 lbf).
6.
Tighten jam nuts (A) on each end of the conditioner.
