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Revision A
Adjusting Roll Gap
–
Polyurethane Rolls
Because polyurethane rolls operate at smaller gaps and the conditioning is less aggressive, the roll gap setting is more
sensitive than on steel rolls. To return roll gap to the factory setting, follow the procedure below:
WARNING
To avoid injury or death from unexpected start-up of 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.
1018573
A
B
Figure 3.121: Roll Gap Adjustment
3.
Loosen upper jam nut (A) on both sides of the conditioner
attachment.
4.
Turn lower nut (B) counterclockwise until the upper roll
rests on the lower roll.
5.
Turn lower nut (B) one full turn clockwise to raise the upper
roll and achieve a 3 mm (1/8 in.) roll gap.
6.
Hold nut (B) and tighten jam nut (A) on both sides of the
conditioner attachment.
IMPORTANT:
Make sure the roll gap adjustment nuts are adjusted
equally on both sides to achieve a consistent gap across the
rolls.
7.
Rotate the rolls manually and use a feeler gauge at the
ends of the rolls to check that the actual gap is no less than
2 mm (5/64 in.) and no more than 4 mm (5/32 in.).
