C-Series IM 1 MAY 2014
7.1 Mechanical Installation
Determine the position of the cutter. This should be done with consideration to the location of
the adjacent puller and to the nature of the extrudate. For flexible and semi-flexible extrudate,
locate the cutter closer to the puller to minimize extrudate buckling during a cut. For rigid
extrudate, allow more space between cutter and puller to improve cut finish quality and
consistency.
Once the general position has been determined, carefully align the cutter with the extrusion
line. It is easiest to adjust the position on the floor before adjusting to the proper height.
Ensure that all downstream equipment is properly aligned (pullers, tanks, etc.). To adjust the
centerline height of the cutter, adjust each foot pad at the corners of the base of the cutter with
a 16 or 18 inch adjustable wrench. Ensure that the cutter is level.
7.1.1 The Blades
When installing the cutter blades, great care should be taken to avoid being cut. Use cut-
resistant gloves to avoid injury. Wait until the knife assembly fully stops before opening the
inspection door.
Ensure the cutter has stopped rotating; rotate the key switch clockwise (to 2 o’clock) and wait
5 seconds for the door to unlock; open the bushing guard (yellow cover).
Rotate the cutter head to a point where the hole in the
Cutter head, lines up with a hole in the cutter enclosure.
Insert an Allen wrench through the two holes to hold the
cutter head in place.
This avoids the possibility that the cutter head will move while
loosening/tightening bolts.
Remove the bolts holding the counter-balance or the old
blade(s), remove counter balance or the old blade(s), and
fasten new blade(s) in the same way the old blade was
attached.
Check that the new blade fully extends through the bushing so that the entire product is cut.
Tighten the knife-securing hardware to 140 inch-pounds of torque.
Always check the blade(s) to bushing clearance after
installing a new blade(s) by rotating the cutter head
manually and inspecting the gap between each of the
bushings and the blade(s).
Ensure that the blade(s) moves freely through the
bushings and that the bushings are properly
10
© 2015 NOVATEC Inc. All Rights Reserved
Document: C-Series 7 MAY 2015
