Sterlco HDG Series Heavy Duty Granulators - Manual (Page 16)

Bulletin Number Chapter 3: Installation 16 of 36
When the customer is providing either the motor or the starter, the machine must be wired in
accordance with the basic electrical diagram and the starter manufacture’s instructions.
Use the following procedure to complete the electrical connections:
1. Check to be certain that the starter heater elements correspond with the motor
requirements. If controls are not supplied, the limit switches supplied on the machine
must be wired into the circuit at the common terminal box.
2. Check that the limit switches are closed.
3. Turn switch ON at main power supply.
4. Jog motor by pressing the START and then the OFF button. This starts and stops the
motor.
5. With the electrical power ON, check that the motor rotates in a clockwise direction at
the viewing port in the belt guard. If motor rotation is correct, continue to the next
step. If rotation is incorrect, complete the following procedure:
a. Shut power OFF and disconnect incoming power supply.
b. Reverse any two of the three power line connections to the machine.
c. Re-connect the incoming power supply line and turn ON the main power
switch to recheck motor drive rotation.
6. If Airveying system (optional) is fitted, press the Airveyor START button and check
the blower motor rotation. The blower motor should rotate in a counter clockwise
direction. If blower motor rotation is correct, continue to step 7. If blower motor
rotation is incorrect, complete the following procedure:
a. Shut power OFF and disconnect incoming power supply line.
b. Reverse any two of the three power connections to the blower motor.
c. Re-connect the incoming power supply line and recheck the blower motor
rotation.
7. Allow all motors to run up to speed for at least 30 seconds.
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 main power off, remove the line fuses and tag the machine as out of service.
2. Remove the hex head bolts along the top of the cutting chamber covers.
3. Swing the covers downward using the handles that are provided on each cover. Do
not allow the covers to drop freely of their own weight.
4. Remove the two screws holding the screen closure on the end of the machine
opposite the drive, and remove the screen through the curved slot in the end plate.
NOTE: It may be necessary to back out the screens that hold the screen down on
the screen supports, along the sides of the machine