Manuals / Bunn / Kitchen Appliance / Coffee Grinder

Bunn G9-2, LPG-2, G9WD The slide plates must always remain flat for proper operation, SERVICE Cont

Models: FPG-2 G1 FPG G9-2T DBC G9-2 G9 G9WD LPG-2

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Page 43

Hopper Slide Plates (Models G9-2, G9-2 DBC)

SERVICE (Cont.)

Hopper Slide Plates (Models G9-2, G9-2 DBC)
		M.
		A.
		B.
		C.
	I.	D.
J.	I.	E.
K.		E.
K.		F.
L.		F.
L.
		G.
		H.
		P608
	FIG 44 HOPPER SLIDE PLATES

Location:

The slide plates are located on the solenoid mount- ing plate immediately beneath the hopper openings.

The slide plates must always remain flat for proper operation.

Test Procedure:

With the solenoid mounting plate attached to the hopper, push the solenoid plunger into the coil. The slide plate must move freely in the assembly and snap closed when the plunger is released. Repeat for the other slide plate.

If the slide plates move as described, they are operating correctly.

If the slide plates do not move as described, the problem may be in any one or more of the linkage pieces, springs, slide plates, and/or the solenoid mounting plate. Disassemble the solenoid mounting plate assembly and inspect all components for free movement.

Replace if excessively worn or damaged.

A.Solenoid Coil

B.Fiber Washer

C.Spring

D.Spring Retaining Washer

E.Solenoid Plunger

F.Snap Ring

G.Short Link

H.Long Link

I.Slide Plate

J.Pivot Pin

K.Stop Block

L.Solenoid Mounting Plate

M.Solenoid Limit Thermostat

Removal and Replacement:

1.Remove the hopper from the grinder.

2.Remove six slotted head screws holding the sole- noid mounting panel to the hopper.

3.The slide plate with attached linkage can be lifted off the pivot pin and removed with the solenoid plunger.

4.Refer to the illustration above when reassembling the components.

5.Inspect the slide plates after reassembly. They must move freely.

43	41545 122209

Image 43

Bunn G9-2, LPG-2 The slide plates must always remain flat for proper operation, SERVICE Cont, M. Solenoid Limit Thermostat

Contents

Includes MHG, FPG FPG-2, LPG-2, G1, G2, G3 G2 trifecta, G9, G9WD BUNN-O-MATIC CORPORATIONSERVICE & REPAIR MANUAL GRINDERSBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY CONTENTS ADJUSTMENTS RECOMMENDED DAILY CLEANINGCAPACITY CHART INTRODUCTIONhousing. Figure MUST BE COMPLETED BY AUTHORIZED SERVICE PERSONNEL DO NOT PLUG INSEE INSTRUCTIONS BELOW BEFORE USING G9 WD - Packaging & Shim RemovalDispense Timer Off/On/Start SwitchHopper Selector Switch Batch Selector Switch OptionalModels LPG, LPG-2E OPERATING CONTROLS ContinuedModel G9 Models G1, G2, G3 & G2 trifectaOPERATING CONTROLS Continued Model MHG Power ON/OFF Pad e 100V ModelsModel G9-2T DBC PAD c Batch Selector SwitchOPERATING CONTROLS Continued Model FPG Model FPG-2 DBCRemedy TROUBLESHOOTINGProblem Probable CauseRemedy TROUBLESHOOTING contProblem Probable CauseRemedy ProblemRefer to Service - Snubber for re Probable CauseTROUBLESHOOTING cont PROBLEMPROBABLE CAUSE REMEDYP602 SERVICEComponent Access Component LocationsBAG SENSOR SWITCH Models G1, G2, G3 or SERVICE ContCUP SENSOR SWITCH MODEL G2 TRIFECTA SERVICE Cont AC MOTOR AND GRIND CHAMBERSERVICE Cont AC MOTOR AND GRIND CHAMBER contAC MOTOR AND GRIND CHAMBER cont SERVICE ContFIG. 5 GRIND CHAMBER COMPONENTS DC MOTOR AND GRIND CHAMBER - G1MD ONLY SERVICE ContSERVICE Cont DC MOTOR AND GRIND CHAMBER - G1MD ONLY cont12. Slide burr auger rotor/spring assembly and burr SERVICE ContDC MOTOR AND GRIND CHAMBER - G1MD ONLY cont SERVICE Cont MOTOR Models LPG & FPGFIG. 10 MOTOR REMOVAL MOTOR Models LPG & FPG SERVICE Cont8. Remove spacer plate 3 and set aside for reas- sembly 21. Discard old motor and housing assembly SERVICE ContMOTOR Models LPG & FPG OPTONAL EXTRA DECHAFFER Models LPG & FPGSERVICE Cont FIG. 14 DECHAFFER REMOVAL/REPLACEMENTFIG. 16 MOTOR WIRING MOTOR Models G9, G9-2, MHGFIG. 15 MOTOR SERVICE ContSERVICE Cont FIG. 17 MOTOR AND GRIND CHAMBERReplace if excessively worn or damaged NOTE Burrs must be replaced as a setSERVICE Cont SNUBBER Models G9, G9-2, MHGWHI/ BLU to Snubber LEVEL 2 FUNCTIONS Grinder Scale Model G9WD only CALIBRATIONSERVICE Cont SERVICE Cont Capacitor Model LPG onlyFIG. 20 CAPACITOR SERVICE Cont Circuit Breaker Models LPG, LPG-2E, FPG, FPG-2 DBCRED from Motor-LPG-2E BLK from Start Switch-LPG BLK from Power Cord WHI to OFF/ON/START Switch BLU to Timer P1-4 blu Hopper Selector Switch Model LPG-2E onlySERVICE Cont FIG. 24 HOPPER SELECTOR SWITCHSERVICE Cont Hopper Selector Switch Model G9-2 onlyFIG. 26 HOPPER SELECTOR SWITCH VIO to timer P1-2 BLK to Cordset WHI/RED timer to P4-6 SERVICE ContVIO to timer P1-2 BLK to Cordset BLK to timer P4-1 WHI/RED timer to P4-6 BLU to SW2 PNK to Intf connSERVICE Cont Urn/Carafe Switch Models G9, G9-2FIG 30 URN/CARAFE SWITCH SERVICE Cont Batch Selector Switch Model FPGORN to TIMER SERVICE Cont Potentiometer Model FPGFIG 34 POTENTIOMETERS SERVICE Cont Rectifier Models G1 MD, FPG-2 DBCFIG. 37 RECTIFIER TERMINALS Multi set timer Urn/Carafe similar Relay Early Model G-9SERVICE Cont Single set timer shownSERVICE Cont Relay Models G1, G2, G3, G2 trifectaSERVICE Cont RELAY contFIG. 41 RELAY TERMINALS FIG 43 RELAY TERMINALS Relay Models MHG, FPG-2 DBC, Late Model G-9, G9-2, G9-2 DBCSERVICE Cont FIG 42 RELAYReplace if excessively worn or damaged 5. Inspect the slide plates after reassembly. They must move freelyThe slide plates must always remain flat for proper operation SERVICE ContThe slide plates must always remain flat for proper operation Hopper Slide Plates Models MHGSERVICE Cont 5. Inspect the slide plates after reassembly. They must move freelypress the Off/On/Start switch to “START” lower Solenoids Models MHG, FPG-2 DBC, LPG-2, G9-2, G9-2 DBCSERVICE Cont 7. Check the solenoid for coil action when the controlSERVICE Cont Timer Model LPG-2EP1061 P1748 Timer Models LPG, FPGSERVICE Cont Timer Model LPG-2ESERVICE Cont Timer Model G9If voltage is present as described, proceed to step Digital Timer Timer Model G9-2FIG 52 TIMER SERVICE ContFIG 54 CONTROL BOARD TERMINALS Control Board Model MHGSERVICE Cont FIG 53 CONTROL BOARDSERVICE Cont FIG 55 CONTROL BOARDControl Board Models FPG-2 & G9-2 DBC TEST FREQUENCY? NO YES Membrane Switches Model MHG onlySERVICE Cont TEST SWITCHES? NO YES PRESS RIGHT HIDDEN TO EXIT NOTHING PRESSEDSERVICE Cont FIG 58 MEMBRANE SWITCHMembrane Switches Models FPG-2 & G9-2 DBC SERVICE Cont EMI Filter Models FPG & FPG-2118.0 kΩ - 118.5 kΩ Across either pair FIG 63 FUNNEL SENSING COIL TERMINALS Funnel Sensing Coil Models MHG & G9-2 DBCSERVICE Cont FIG 62 FUNNEL SENSING COILGRN WHI RED BLK Memory Clock Board Model MHGSERVICE Cont MEMORY BOARDTo Control Board J8 Display Board Model MHGSERVICE Cont FIG 66 DISPLAY BOARDTH2 & MOV3 TRIAC MAP for MHG@ J5-4,5,6 TH1 & MOV2TH3 & MOV3 TRIAC MAP for FPG-2 DBC and G9-2 DBCTH1 & MOV1 TH2 & MOV2G9-2 DBC, G9-2T DBC W/SMART FUNNEL SCHEMATIC WIRING DIAGRAMWIRING DIAGRAMS 2 WIRE SINGLE PHASE 50/60 HZG9-2 DBC, G9-2T DBC W/SMART FUNNEL SCHEMATIC WIRING DIAGRAMWIRING DIAGRAMS 2 WIRE SINGLE PHASE 50/60 HZ100 VOLTS AC 2 WIRE SINGLE PHASE 50 HZ SCHEMATIC WIRING DIAGRAM G9-2TB DBC W/SMART FUNNELWIRING DIAGRAMS WIRING DIAGRAMS 2 WIRE SINGLE PHASE50/60 HZ SCHEMATIC WIRING DIAGRAM MHGSINGLE PHASE, 50/60HZ SCHEMATIC WIRING DIAGRAM MHG with WD CBAWIRING DIAGRAMS 100 VOLTS AC, 120 VOLTS AC 240 VOLTS AC 2 WIRE + Gnd100 VOLTS AC 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ SCHEMATIC WIRING DIAGRAMLPG-2E, LPGB-2E WIRING DIAGRAMSWIRING DIAGRAMS 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM LPGLPG-A WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM230 VOLTS AC 2 WIRE SINGLE PHASE 50/60 HZ 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM LPG W/Capacitor100 VOLTS AC 2 WIRE SINGLE PHASE 50-60 HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM LPG-B100 VOLT AC 120 VOLT AC 230 VOLT AC 240 VOLT AC WIRING DIAGRAMSSCHEMATIC WIRING DIAGRAM G1, G2, G3 & G2 trifecta 2 WIRE + GRD SINGLE PHASE 50/60 HZ2 WIRE SCHEMATIC WIRING DIAGRAM G9SCHEMATIC WIRING DIAGRAM G9-URN/CARAFE 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZSCHEMATIC WIRING DIAGRAM G9WD-RH SCHEMATIC WIRING DIAGRAM G9A HD50 HZ WIRING DIAGRAMS120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ SCHEMATIC WIRING DIAGRAM G9SCHEMATIC WIRING DIAGRAM G9 WIRING DIAGRAMSSCHEMATICWIRINGDIAGRAMG9-2A HD 230 VOLTS AC 2 WIRE SINGLE PHASE 50 HZWIRING DIAGRAMS WIRING DIAGRAMS 230 VOLTS AC 2 WIRE SINGLE PHASE 50/60 HZ FPGAWIRING DIAGRAMS 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZSCHEMATIC WIRING DIAGRAM 100 VOLTS AC 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZWIRING DIAGRAMS FPG-2 DBC, FPGB-2 DBCSCHEMATIC WIRING DIAGRAM FPG-2A DBC230 VOLTS AC 50 HZ