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BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: years parts and 1 year labor . ) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 years parts and 1 year labor. 4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis: parts and labor for 3 years or 30,000
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ELECTRICAL REQUIREMENTS The 10 volt and 40 volt grinders have an attached cordset and requires -wire, grounded service rated 10 volts ac and 40 volts ac, 15 amp, single phase, 60 Hz. The 30 volt grinders have a power connector and requires -wire, grounded service rated 30 volts ac, 15 amp, single phase, 50 Hz. INITIAL SET-UP CAUTION - Unplug the grinder throughout the initial set-up. 1. Open the top lid. Clear all foreign objects and shipping materials from the hopper compartment and
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COFFEE GRINDING 1. Turn the selector knob to align the red arrow with the desired grind. . Raise the top lid and add the whole bean coffee. Close the top lid. 3. Locate the back of a bag behind the dispense chute. (The grinder will not operate unless the bag is behind the chute.) 4. Allow the bag to rest on the screen beneath the chute. 5. Press the start switch. 6. Flip the cleaning lever a few times as dispensing slows. 7. Remove the bag when ground coffee is no longer dispensed from the chu
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TROUBLESHOOTING A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qualified service person- nel. WARNING – • Exercise extreme caution when servicing electrical equipment. • Disconnect the grinder from the power source w
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TROUBLESHOOTING (cont.) PROBABLE CAUSE PROBLEM REMEDY 3. Bag Sensor. (cont.) Grinder will not start. (cont.) (B) Refer to Service - Bag Sensor Switch for testing and adjustment procedures. See page 9. 4. Motor overload protector. Remove the plug located on the right side of the housing. Press the red “Reset” button visible through the opening. Listen carefully for a “click”. This resets the motor protec- tion circuit and may indicate that an overload has been encountered by the motor. (A
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TROUBLESHOOTING (cont.) PROBLEM REMEDY PROBABLE CAUSE Grinder starts, but will not dis- Coffee must be poured into hopper 1. Hopper pense. before grinding. Foreign materials must not block . Entrance to grind chamber the opening at the bottom of the hopper. Remove both black fillister head 3.Shear Plate screws holding the grinder selector dial plate to the grinder. Carefully remove the dial plate and rotor cup. Inspect the shear plate for wear. Replace if excessively worn or dam- aged.
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SERVICE (cont,) AC MOTOR AND GRIND CHAMBER (cont.) 11. Clean all grinding burrs and mounting surfaces before reassembly. 4. Check the voltage across the white, red or red/ 1. Install the four .50”- 0 cage nuts on the new black and white/blue wires on terminals L1 & motor. L with a voltmeter. Connect the grinder to the 13. Place the new motor with hopper collar and bush- power source. When the Off/On/Start switch is ing into position on the bushings on the motor momentarily placed in
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SCHEMATIC WIRING DIAGRAM G1, G2 & G3 L1 N GRN SW1 K-2 or K-7 BLK WHI/RED WHI/BLU WHI M L1 L2 K-4 K-6 WHI/VIO 120 VOLT AC K-8 or K-9 2 WIRE SW2 SINGLE PHASE 60 HZ WHI/ORA WHI/VIO WHI K 1 or A 0 or B 10190.0000G 07/05 © 1985 BUNN-O-MATIC CORPORATION 10191 070306 0
