SERVICE (Cont.)

MOTOR (Models G9, G9-2, MHG)

 

FIG. 15 MOTOR

P1309

 

Location:

The motor is located in the upper wrapper under the hopper.

Test Procedure:

1.Remove the hole 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 protection circuit and may indicate that something other than coffee was inserted into the hopper for grinding.

If the grinder remains unable to start, proceed to step 2. If the grinder stops operating shortly after starting, refer to the removal and replacement steps to gain access-to the grind chamber. Remove any foreign materials that may be found.

2.Disconnect the grinder from the power supply.

3.Remove the electrical access panel at the rear of the motor.

4.Check the voltage across terminals L1 & L2 of the motor with a voltmeter when the Off/On/Start switch is placed in the “START” (right) position and released. Connect the grinder to the power supply. The indication must be:

(a)120 volts ac for two wire 120 volt models.

(b)240 volts ac for two wire 240 volt models.

5.Disconnect the grinder from the power supply.

If voltage is present as described and the grinder remains unable to start, replace the motor.

If voltage is not present as described, refer to the Wiring Diagrams, and check the grinder wiring harness.

Removal and Replacement - MOTOR

1.Remove all wires from the Off/On/Start switch, motor, and motor mounting plate.

2.The entire wiring harness must be fed into the bottom of the grinder housing through the hole in the motor mounting plate.

3.Remove both 6-32 screws beneath the upper front inspection panel.

4.Remove the six 10-32, hex head screws on top of the motor mounting plate.

5.Slowly slide the assembly out the rear of the grinder housing. The mounting plate will have to be raised to gain clearance for the motor hardware and wiring harness bushing.

6.Remove the four 5/16”-18 bolts and nuts to separate the motor from the mounting plate.

7.Mount the new motor and tighten the four bolts and nuts. They should be tightened approximately one full turn past snug.

8.Slide the motor mounting plate into the rear of the grinder housing.

9.Feed the wiring harness into the top of the housing through the hole in the motor plate.

10.Reinstall the six 10-32 hex head screws through the motor plate and the two 6-32 screws through the housing.

11.Reattach the green wire to the 10-32 stud on the motor mounting plate.

12.Refer to the Off/On/Start switch section when recon- necting the switch wires.

13.Refer to the illustration below when reconnecting the motor wires.

 

WHI/ BLU to Snubber

 

 

WHI/BLU to Relay

 

 

WHI/BLK to Cordset

 

 

(120V models)

 

 

RED/BLK to Cordset

 

 

(230V models)

 

 

WHI/BLK to Snubber

 

 

GRN to Chasis Ground

 

 

YEL to Snubber

 

 

FRANKLIN MOTOR

 

 

WHI/BLK to Snubber

 

YEL to Snubber

 

 

WHI/ BLU to Snubber

 

WHI/BLK to Cordset

 

WHI/BLU to Relay

 

 

GRN to Chasis Ground

 

 

MARATHON MOTOR

P621

 

FIG. 16 MOTOR WIRING

 

 

26

41545 122209

 

 

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Bunn LPG-2, G9WD, G9-2T DBC, G1, FPG-2 service manual Motor Models G9, G9-2, MHG, Franklin Motor, Marathon Motor
Page 25 Page 27

FPG-2, G1, FPG, G9-2T DBC, G9-2 specifications

Bunn has established itself as a leader in the coffee and beverage equipment industry, providing advanced solutions that cater to a variety of needs. Among its notable products are the Bunn LPG-2, G9, FPG-2, G9-2, and G9WD, which showcase the company’s commitment to innovation, quality, and efficiency.

The Bunn LPG-2 is an ideal solution for high-volume coffee production. This model features a two-watt heating element that ensures rapid brew cycles and consistent temperature control. With a sleek design and user-friendly interface, the LPG-2 simplifies the brewing process while delivering exceptional coffee quality. Its large capacity enables institutions to serve multiple customers simultaneously, making it suitable for restaurants, cafes, and hotels.

The G9 series, particularly the G9 and G9-2, are known for their versatility and robust performance. Both models come equipped with a stainless steel hot water faucet, allowing users to draw hot water for various applications such as tea or soup preparation. The G9 model is designed for single-brew operation, while the G9-2 accommodates dual brewing, making it an efficient choice for those needing to meet demand quickly. Additionally, both G9 models have advanced brewing technology to ensure optimal flavor extraction.

The FPG-2 model stands out for its precision and control over brewing parameters. It features a touchscreen interface that allows users to customize brew strength and temperature, ensuring that each cup meets individual preferences. The FPG-2 is also remarkably user-friendly, which is essential in a busy environment. Its dual-brew functionality allows it to serve two different coffee options simultaneously, enhancing service efficiency.

The G9WD is designed for those who require the ultimate convenience. Featuring a built-in water line connection, the G9WD minimizes the need for manual refilling, ensuring a continuous supply of fresh coffee. This model is equipped with a programmable timer, allowing users to set brew cycles in advance, which can be a significant time-saver during peak hours.

In summary, the Bunn LPG-2, G9, FPG-2, G9-2, and G9WD offer a range of features that cater to various coffee brewing needs. With advanced technologies, efficient designs, and user-centric interfaces, these models are engineered to deliver consistent, high-quality beverages, making them essential tools for any coffee-focused establishment. Whether for high-volume brewing or versatile beverage options, Bunn's offerings stand out in the competitive landscape of beverage equipment.
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