Assessments - 3, GPA: 4 ( )

Fabricante : Grindmaster Arquivo Tamanho: 1.21 mb Arquivo Nome : Língua de Ensino:

Remove Upper Front Plate by removing the four screws in the corners (Shipping bracket must be removed prior to removal of upper hopper assembly. See instructions and diagram above.) 2. Lift Upper Hopper Assembly while rotating the Assembly slightly upward (see Figure F). 3. Pull the Assembly forward, toward front of unit and out. 4. To reinstall hopper, ensure the Drive Pins are in vertical position. (see Figure G) 5. Ensure that Drive Links are in horizontal position. 6. Insert the rear slots of the Upper Hopper Assembly into the rear tabs of the motor bracket. 7. Rotate assembly downward. 8. Reassemble Upper Front Plate. 9. Put the (4) screws back into Upper Front Plate and tighten. For Models 250RH-2, 250RH-3: 1. To remove hoppers, grasp hopper by handle and lift up approximately 1/4” and pull hopper back and out of grinder. The bottom bean shut off valve will close automatically, preventing spillage of beans. 2. Once hopper is removed, it can be refilled or cleaned if necessary. 3. To reinstall hopper, grab by handle and set bottom back of hopper on left or right side of grinder, making sure that the drive link is properly oriented (see Figure G). 4. Push hopper all the way back until it settles in it’s designated space (see Figure A). Figure G: Positioning of the Drive Pins and Drive Links NOTE: Hopper must be in place in order for that side of the grinder to operate. Figure F: Upper Hopper Assembly Removal and Reinstallation 115 & 250 Series Coffee Grinders Page 6 Motor (86419) Nut (86864) Adjusting Nut (86340) Decal, Coarse-Fine (84884) Shear Cap (86355) Shear Disc (86123) Burr Set (85281W) Tension Spring (86118) Thrust Collar (86304) Grind Head (84171S) Gasket, Hopper Foam (88211) Machined Spout (86218) Deflector (86220) Screw (86217) Gasket, Portioner to Head (71419) Adjusting Screw (86341) Thumb Screw (86819) Bearing, Adjusting (86140) Grind Cap (87131) Shear Drive (86154) Feedworm (85185K) Screw (86812) Screw (86148) Spring, Chaff Mixing (86146) Revolving Burr Figure H: Motor Assembly Shear Disc Replacement If the motor should run and no coffee is dispensed, the shear disc release may have operated. Should this occur, perform the following operations in the sequence given (see Figure H). Tools Required: Phillips Head Screwdriver and Pliers 1. Unplug machine. 2. Remove the Upper Front Plate of the grinder to provide access to the grinder mechanism. 3. Remove the Grind Cap by taking out the 2 Thumb Screws. 4. Pull out the Revolving Burr and Feedworm Assembly. Clean out the Grinder Head, removing all coffee particles from inside of the Grinder Head and the Grinder Cap so that it can be reset properly. 5. Check that no obstruction has been caught on the surface of the teeth of either burr. 6. Remove the Shear Cap and broken pieces of the Shear Disc. You are now ready to reassemble the grinder mechanism. 7. Slide the Burr and Feedworm Assembly back onto the Motor Shaft making certain that the tongue of the shaft engages the slot in the Shear Drive. 8. Insert a new Shear Disc by aligning the slot in the Shear Drive with the slot in the hub of the Feedworm. 9. Reassemble the Shear Cap and Grinder Cap. Make certain the Grinder Cap is screwed on tight and is sealed properly against the head, not angled or mis-aligned. Otherwise a proper grind cannot be obtained. 10. Reassemble the Upper Front Plate. Your grinder is now ready to grind. Page 7 115 & 250 Series Coffee Grinders Troubleshooting Guide The following procedures must be performed by a qualified service technician. CAUTION: Unplug the machine before cleaning or servicing the unit. Problem Possible Cause Solution Grinder will not start when START button is pushed • Plug not in outlet properly • No power to outlet • Circuit breaker has tripped • Install plug in outlet • Check outlet with lamp or radio to verify outlet has power. • Reset circuit breaker by pushing in reset button until you hear a click Grinder runs or hums but no coffee is dispensed • Shear disc is broken • Obstruction in opening to grinding chamber • Auger has stalled (Models 250, 250A 250RH-2 & 250RH-3 only). • 250RH Models: Hoppers not properly in place • Replace shear disc. See “Shear Disc Replacement” section or instructions on inside of upper front plate. • Remove hopper and clear obstructions. • Clean auger • Make sure hoppers are seated in their allocated area Excessive amount of chaff flying about • Defective chaff mixer spring • Static electricity • If bent, broken, or missing, replace spring. • If stuck open with coffee, clean coffee to free spring • Tighten all nuts, bolts, and screws and verify outlet is grounded. Quantity of coffee dispensed each throw is not the same • Auger stalls (Models 250, 250A, 250RH-2, and 250RH-3 only) • Timer delay is not working or running long enough • Defective timer • Refer to problem as listed below in this Troubleshooting Guide. • See “Timer Adjustment” section • Check the length of time the grinder runs • If time varies more than plus or...

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