ACS 3200 Series, Руководство по эксплуатации и инструкция

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3200 Series Granulators 63”and 84” 357563 • 08/22/2019 30
Rotor Knives
We recommend that the rotor knife screws be replaced with new screws every sixth knife
change to reduce the risk of screw failure due to overstretching. Screws must be replaced
with the type specified in the spare parts list. Improper substitution could lead to premature
failure, equipment damage, and serious injury to personnel.
Rotor knives should be changed one seat at a time to prevent rotor from being
rotated in an out-of-balance condition.
1. Access the cutting chamber as directed in Section 3-4.
2. Loosen and remove the rotor knife screws with a 30 mm socket mounted on a
breaker bar. Make sure you have solid footing while you apply the breaking force.
Note: These screws are tightened to a torque of 640 Nm (472 ft. x lbs.), so make sure you
have the proper breaker bar. We suggest a four foot long (1.2 m) bar with a 3/4”
(19 mm) drive.
3. Lift the knife section off of the rotor and repeat for each knife section.
4. Unscrew the rotor locking nut, turn the rotor to bring the next knives into position
for removal, and turn the rotor locking nut to hold the rotor in position.
5. Repeat steps 2 through 4 for each of the remaining knives.
6. Thoroughly clean the knife seats with a stone or other non-marring tool. Clean
screw threads of any residue. Any lubrication on the screw threads can adversely
affect the stress on a screw installed to a fixed torque value.
Note: The 3200 Series granulator rotors are designed with bolt-in knife seats. If a knife seat
is damaged or worn, or if the knife mounting bolt threads are damaged or worn, the
seat can be replaced easily without removing the rotor. In high wear applications,
these knife seats can be furnished in alloy or tool steel materials for extended life.
7. Set back the bed knives to clear the rotor knives so that the rotor can revolve freely.
8. Place each knife section onto the rotor with the chamfered edge facing into the
knife seat, making sure that the backside of the knife is sitting squarely against the
back of the knife seat on the rotor.
9. Lightly tighten the screws and check that a 0.04 mm (0.0015”) feeler gauge will not
pass between the back of the knife and the knife seat. Tap the knife gently with a
rawhide hammer if necessary to close the gap.
10. Tighten the screws evenly and torque the screws to 640 Nm (472 ft. x lbs.)
11. Re-check the gap between the back of the knife and the knife seat. If necessary,
readjust the knife.
12. Unscrew the rotor locking nut, turn the rotor to bring the next knives into position,
and turn the locking nut to hold the rotor in position.
13. Repeat steps 8 through 12 for each of the remaining knives.
14. Adjust the clearance between the bed knives and rotor knives. (See “ Bed Knives ” in
Section 5-8.)