Manuale d’uso / di manutenzione del prodotto G9-2 HD-S del fabbricante Bunn
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BU N N ® OPERA TING & SER VICE MANU AL BUNN-O-MA TIC CORPORA TION OF CANAD A L TD . 280 INDUSTRIAL P ARKW A Y SOUTH AURORA, ONT ARIO. L4G 3T9 PHONE: (905) 841-2866 F AX: (905) 841-2775 10218.7000 3/00 ©1994 Bunn-O-Matic Corporation P E R S O N A L IN J U R Y H A Z A R D .
2 CONTENTS Introduction .............................................................................. 2 Warranty ................................................................................... 2 User Notices ......................................
3 USER NOTICES Carefully read and follow all notices on the grinder and in this manual. They were written for your protection. All notices on the grinder are to be kept in good condition. Replace any unreadable or damaged labels. #05942.0000 DISPENSE TIME (Seconds) DISPLAY Increase Decrease Readout will be displayed for 5 minutes.
4 ELECTRICAL REQUIREMENTS This grinder has an attached cordset and requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz. OPERA TING CONTROLS Off/On/Start Switch OFF - (upper position) Switching to this position stops all operation of the grinder .
5 CLEANING The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all sur faces on Bunn-O-Matic equipment. Care should be taken not to scratch the hopper or windows with any abrasive material. Regular cleaning will keep your grinder looking new for years.
6 ADJUSTMENTS The grind can be set from very fine to ver y coarse. The amount may be adjusted for use in most commer - cial coffee brewers. The following procedures should be used to make adjustments. A change in the burr adjust- ment will also change the amount dispensed.
7 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 T ech- nical Service Department.
8 TROUBLESHOOTING (cont.) Problem Grinder will not start. Remedy (A) Plug-in the grinder . (B) Check the voltage at the wall outlet with a voltmeter . It must be 120 volts ac. (A) Momentarily press the Off/On/ Start switch to the “ST AR T” (lower) position.
9 Probable Cause 3. Relay 1. Hoppers 2. Bottoms of hoppers Remedy Refer to Service - Relay for testing procedures. See page 14. Begin each grind cycle by visually inspecting the hoppers for ample supplies of whole bean coffee. Foreign materials must not block the openings at the bottom of the hoppers.
10 The rear panel is attached with eight 8-32 slot- ted head screws. The hopper assembly is attached with four 6- 32 slotted head screws with locking nuts located on the sides of the housing near the center and rear . Removal of the hopper will also require disconnec- tion of the solenoid wires from the grinder wiring har - ness.
11 SERVICE (cont.) Off/On/Start Switch Location: The Off/On/Start switch is located to the left side on the front of the housing above the upper front inspection panel. T est Pr ocedure: 1. Unplug the grinder . 2. Remove the black wire from the switch.
12 SERVICE (cont.) Motor Location: The motor is located in the upper wrapper . T est Pr ocedure: 1. Remove the cover plate located on the right side of the housing. Press the red “Reset” button vis- ible through the opening. Listen carefully for a “click”.
13 SERVICE (cont.) Motor (cont.) Removal and Replacement - GRIND CHAMBER 1. Remove the two 1/4"-20 screws holding the front cover to the burr housing. Carefully remove the burr housing front cover . Inspect the adjusting screw to see if the thrust plug is worn.
14 SERVICE (cont.) Relay Location: The relay is located on the timer bracket in the grinder base. The bracket can be removed by loosen- ing the two 8-32 slotted head screws beneath the timer dial.
15 SERVICE (cont.) Slide Plate(s) Location: The slide plates are located on the solenoid mounting plate immediately beneath the hopper open- ings. The slide plates must always remain flat for proper operation. T est Pr ocedure: With the solenoid mounting plate attached to the hopper , push the solenoid plunger into the coil.
16 SERVICE (cont.) Snubber Location: The snubber is located at the back of the motor attached to the right side of the wiring harness. Removal and Replacement: 1. Remove the snubber wires from the motor ter - minals. 2. Cut the ties holding the snubber to the wiring harness.
17 Timer Location: The timer is located in the grinder base. T est Pr ocedure: 1. Unplug the grinder . 2. Check the voltage across contacts 1 & 2 of the larger connector on the timer board with a volt- meter whenever the grinder is plugged-in. Plug- in the grinder .
18 4. Check the voltage across contacts 2 & 6 of the larger connector on the timer board with a volt- meter when the control switch is in any position except “OFF” (center). Plug-in the grinder . The in- dication must be 120 volts ac. 5. Unplug the grinder .
19 P614 1 8 P4 P1 1 8 3 1 P2 P3 1 11 BLK to Cordset BLK to Off/On/Start Switch WHI/BLK to Cordset WHI/GRN to Relay Coil WHI/ORN to Left Solenoid WHI/YEL to Right Solenoid WHI/RED to Off/On/Start Switc.
20 BLU VIO YEL GRY TAN ORA WHI/BLK RED/BLK WHI/GRN WHI/ORA WHI/YEL WHI/RED WHI/BLK BLK WHI/RED WHI/BLU M K1 SOL 1 RT SOL 2 LT SNUBBER L2 L1 WHI/BLU WHI/BLK YEL 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ 10756.0000G 3/97 © 1993 BUNN-O-MATIC CORPORATION L1 N K1 N.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Bunn G9-2 HD-S è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Bunn G9-2 HD-S - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Bunn G9-2 HD-S imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Bunn G9-2 HD-S ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Bunn G9-2 HD-S, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Bunn G9-2 HD-S.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Bunn G9-2 HD-S. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Bunn G9-2 HD-S insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
