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Revision A
3.16.2
Roll Tension
Roll tension (the pressure holding the rolls together) is factory-set to maximum and should rarely require adjustment.
Heavy crops or tough forage can cause the rolls to separate; therefore, maximum roll tension is required to ensure that
materials are sufficiently crimped.
Adjusting Roll Tension
To adjust roll tension back to factory setting, follow these steps:
WARNING
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove the key
from the ignition before leaving the operator
’
s seat for any reason.
1.
Lower the rotary disc pull-type fully.
2.
Shut down the engine, and remove the key from the ignition.
A
B
C
D
1008077
Figure 3.123: Adjusting Roll Tension
3.
Loosen jam nut (A) on both sides of conditioner.
4.
Turn spring drawbolt (B) clockwise to tighten spring (C) and
INCREASE
roll tension.
5.
Turn spring drawbolt (B) counterclockwise to loosen
spring (C) and
DECREASE
roll tension.
6.
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).
7.
Tighten jam nuts (A) on each end of the conditioner.
3.16.3
Roll Timing
For proper conditioning, the rolls must be properly timed with the bar on one roll centered between two bars on the other
roll. The factory setting should be suitable for most crop conditions.
1003734
= =
Figure 3.124: Properly Timed Rolls
IMPORTANT:
Roll timing is critical when the roll gap is decreased because
conditioning is affected and the bars may contact
each other.
