Bunn LPG-2, G9WD, G2 TRIFECTA, G9-2T DBC, FPG-2 service manual Grind Chamber Components

Page 18

SERVICE (Cont.)

AC MOTOR AND GRIND CHAMBER (cont.)

 

 

 

 

 

 

18

1

19

17

 

20

7

6

4

5

 

 

 

 

 

11

10

9

8

3

 

 

 

 

14

 

 

 

 

2

1

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

15

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

FIG. 5 GRIND CHAMBER COMPONENTS

 

 

 

P1708

 

 

 

 

 

Removal and Replacement - Grind Chamber - Fig. 5:

1.Loosen the two set screws (16) securing the grind selector knob to the grind selector dial plate (18) and remove knob.

2.Remove the adjusting screw w/bearing (19). Inspect adjusting screw w/bearing for wear. Replace if exces- sively worn or damaged.

3.Remove the two .250”-20 screws (1) securing the grind selector dial plate (18) to the grind housing.

4.Slide burr auger rotor/spring assembly (3) off of the grinder motor shaft with burr rotor cup (5), shear plate

(4)and burr (7) as an assembly.

5.Remove burr rotor cup (5) and shear plate (4) from burr auger rotor/spring assembly (6). Inspect shear plate (4) for wear. Replace if excessively worn or damaged.

6.Remove the two .250” screws (20) securing burr (7) to burr auger rotor/spring assembly (6) and remove burr

(7).Inspect burr (7) for wear. Replace if excessively worn or damaged.

7.Remove the two .250”-20 screws (8) securing the sta- tionary burr (9) to grind chamber housing and remove burr. Inspect for wear. Replace if excessively worn or damaged.

NOTE: Burrs are serviced in sets of two with hardware.

8.Clean all grinding burrs and mounting surfaces before reassembly.

9.Remove bushing (10) and shaft extension (11) from grinder motor shaft. Inspect for wear. Replace if exces- sively worn or damaged.

10.Install shaft extension (11) and bushing (10) onto the grinder motor shaft.

11.Install stationary burr (9) inside the grind chamber and secure with two .250” -20 screws (8).

12.Install burr (7) on burr auger rotor/spring assembly (6) securing with two .250”-20 screws (20).

13.Slide burr auger rotor/spring assembly and burr (3) onto the motor shaft.

14.Align the slot in the shaft extension and the slot in the burr auger rotor/spring assembly and install shear plate

(4).

15.Install burr rotor cup (5) onto the burr auger rotor/spring assembly (6).

16.Install the adjusting screw w/bearing (19) into the grind selector dial plate (18).

17.Install grind selector dial plate (18) with adjusting screw w/bearing (19) onto the grind chamber and secure with two .250”-20 screws (1).

18.Install grind selector knob (17) onto the grind selector

dial plate (18).

NOTE: Refer to ADJUSTMENTS in the Installation and Op- erating Manual, and reset the burrs.

18

41545 122209

 

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Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Recommended Daily Cleaning Capacity ChartIntroduction Housing. Figure G9 WD Packaging & Shim RemovalModel G9WD Model G9-2Model G9 Models G1, G2, G3 & G2 trifectaModels LPG, LPG-2E Power ON/OFF Pad e 100V Models Operating Controls Model MHGPressing Grind initiates a timed grind cycle Batch Selector SwitchPressing the pad allows programming access see Hopper/Batch Selector Pads dProcedures Problem Probable Cause RemedySwitch for testing procedures Volts for 230 volt modelsTroubleshooting From hopper Placement proceduresHoppers Supplies of whole bean coffeeProblem Probable Cause Remedy Component Access Component LocationsService BAG Sensor Switch Models G1, G2, G3 orCUP Sensor Switch Model G2 Trifecta Remove the electrical access panel at the rear of the motor AC Motor and Grind ChamberInstall shear plate Install burr rotor cup AC Motor and Grind ChamberGrind Chamber Components DC Motor and Grind Chamber G1MD only DC Motor and Grind Chamber G1MD only DC Motor TerminalsMotor and Grind Chamber Removal Motor Models LPG & FPG MotorSolenoid and Gates Install load disc 11 flat side towards rotor ROTOR/AUGER, Burrs and Motor CoverDechaffer Models LPG & FPG DechafferMotor Models G9, G9-2, MHG Franklin MotorMarathon Motor Replace if excessively worn or damaged Remove and inspect stationary burr9 for wearSnubber Models G9, G9-2, MHG LocationGrinder Scale Model G9WD only CalibrationLevel 2 Functions Capacitor Model LPG only Capacitor TerminalsCircuit Breaker Models LPG, LPG-2E, FPG, FPG-2 DBC Circuit BreakerHopper Selector Switch Model LPG-2E only Viewed from rearHopper Selector Switch Model G9-2 only Refer to Fig. below when reconnecting the wiresGrinders with Analog Timer OFF/ON/START SwitchGrinders with Digital Timer OFF/ON/START Switch TerminalsUrn/Carafe Switch Models G9, G9-2 Refer to the illustration below when reconnecting the wiresURN/CARAFE Switch Terminals Batch Selector Switch Model FPG Batch Selector SwitchBatch Selector Switch Terminals Potentiometer Model FPG Potentiometer TerminalsRectifier Models G1 MD, FPG-2 DBC RectifierRelay Test Procedure Disconnect the grinder from the power supplyRelay Early Model G-9 Relay TerminalsRemove the white/red wires from relay contacts 7 Relay Models G1, G2, G3, G2 trifectaRelay Early Models Late ModelsRelay Models MHG, FPG-2 DBC, Late Model G-9, G9-2, G9-2 DBC Hopper Slide Plates Slide plates must always remain flat for proper operationHopper Slide Plates Models MHG Solenoids Models MHG, FPG-2 DBC, LPG-2, G9-2, G9-2 DBC SolenoidsTimer Model LPG-2E Place the hopper selector switch in the left posi- tionTimer Models LPG, FPG Timer Model G9 Timer TerminalsAnalog Timer Timer Model G9-2Digital Timer TimerControl Board Model MHG Refer to when connecting wires Control BoardControl Board Terminals Membrane Switches Model MHG only Membrane Switch Membrane SwitchNuetral EMI Filter Models FPG & FPG-2 EMI Filter TerminalsFunnel Sensing Coil Models MHG & G9-2 DBC Memory Clock Board Model MHG Disconnect the harness from the memory clock boardDisplay Board Model MHG Triac MAP for MHG MOV1Controls Relay @ J1-2 Triac MAP for FPG-2 DBC and G9-2 DBCControls Left Gate @ J1-1 Controls Right Gate @ J1-3G9-2 DBC, G9-2T DBC W/SMART Funnel 50/60 HZRelay Coil WHI/GRN Schematic Wiring Diagram G9-2TB DBC W/SMART Funnel 50 HZSchematic Wiring Diagram MHG Wire + Gnd Single PHASE, 50/60HZVolts AC, 120 Volts AC Volts AC Wire Single Phase 60 HZWiring Diagrams Wiring Diagrams Schematic Wiring Diagram LPG Schematic Wiring Diagram Wiring Diagrams Schematic Wiring Diagram LPG W/CapacitorWiring Diagrams Schematic Wiring Diagram LPG-B Schematic Wiring Diagram G1, G2, G3 & G2 trifecta Volts AC Wire Single Phase 60 HZVolts AC Schematic Wiring Diagram G9A HD 50 HZBLK WHI/RED WHI/YEL WHI/BLU SCHEMATICWIRINGDIAGRAMG9-2A HD Wiring Diagrams FPG Wiring Diagrams 60 HZFPG-2A DBC
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FPG-2, G9-2T DBC, G9-2, G2 TRIFECTA, G9 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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