AEC 1426-i Twin-Shear Granulator - Manual (Page 15)

1426-i Granulator Chapter 3: Installation 14 of 37
3-4 Accessing the Cutting Chamber
You will need to access the cutting chamber before initial startup and for various
maintenance procedures. Use the following procedure to access the cutting chamber:
1. Turn the main power off, remove the line fuses, and tag the machine as out of
service.
2. Unscrew the front cover interlock screw. This operates a limit switch, preventing the
machine from being started.
3. Lift off the front cover to gain access to the hopper crank mechanism.
4. At the rear of the hopper near the bottom, remove the cover that provides access to
the downstroke shield, and loosen the five shield hold-down screws. The four
remaining side screws are more easily loosened from the top.
5. Unscrew the hopper clamp screw. This operates a limit switch, preventing the
machine from being started.
6. Tilt back the hopper (using the hand crank provided) by turning the pivot screw in the
top front of the left hand guard. This permits access to the cutting chamber.
7. Remove the screws holding the screen cradle and carefully lower the cradle and
screen. Remove the screen from the front.
3-5 Closing the Cutting Chamber
After completing any maintenance or adjustments inside the cutting chamber, use the
following procedure to close the cutting chamber and resume use of the granulator:
1. Replace the screen in the cradle, making sure that the far edge is trapped beneath the
bed knife block. Tighten the cradle screws.
2. If the front shield was removed, replace it and tighten the screws.
3. Check that the cutting chamber is clear of any parts or materials.
4. Close the hopper and tighten down the clamp screw.
5. Check that the gaps between the seal strips and cutting chamber are less than 0.15mm
(0.006”). Release the screws to make any adjustment and retighten when adjustment
is complete.
6. Replace the front cover and tighten the interlock screw.
7. Replace line fuses, turn power on, and remove the out of service tag from the
machine.