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Wilbur Curtis Company, Inc. Service Manual – Single and Dual Hopper Grinders Models Included Important Safeguards/Conventions SHG This appliance is designed for commercial use. Any servicing other than cleaning and maintenance should be DHG performed by an authorized Wilbur Curtis service technician. • Do NOT immerse the unit in water or any other liquid • To reduce the risk of fire or electric shock, do NOT open top panel. No user serviceable parts inside. • Keep hands and other items away from hot parts of unit during operation. • Never clean with scouring powders or harsh chemicals. SYMBOLS WARNINGS – To help avoid personal injury Important Notes/Cautions – from the factory CAUTION: Please use QUICK START & SETUP this setup procedure before attempting to SETUP use this grinder. Failure to follow 1. Install the grinder on a firm, level base in a location where it can be connected to a grounded electrical outlet the instructions can result in injury or the voiding of the warranty. of 120VAC, rated at 15 amps minimum. 2. Test the unit by running some whole bean coffee through the grinder. If any problems are encountered, refer WARNING TO AVOID SCALDING, Do not to the troubleshooting section complete at www.wilburcurtis.com or call Technical Support at 800-995-0417. remove brewcone whil brew light is flashing. OPERATING INSTRUCTIONS C 1. Lift open the top cover of the grinder and fill with fresh whole bean coffee. Close the cover. ISO 9001:2008 2. Place a new paper filter into the brewcone. Wilbur Curtis Company Montebello, CA 90640 3. Insert the brewcone into the basket holder arms on the grinder. Tel: (323) 837-2300 4. Press the grind switch. The grinder will start to grind coffee. Allow the www.wilburcurtis.com motor to come to a complete stop before removing the brewcone. 5. Transfer the filled brewcone to the brewer and press the desired brew button. The brew cycle is complete when the brew light stops flashing. ADJUSTING THE GRINDS* 1. Empty hopper of coffee beans. Run grinder to clear grinding burrs of coffee. 2. Open housing cover to locate adjustment screw (8) and lock nut (7). Loosen lock nut. 3. Run motor during adjustment. Turning adjustment screw clockwise will result in a finer grind (if, while turning, you hear the grinding burrs starting to touch, im- mediately, back off 1/8th turn). Turning counter clockwise will produce a coarser grind. 4. With a screwdriver holding the adjustment screw in place, tighten the locknut. 5. Run some coffee beans through the machine to check the grind adjustment. 6. Replace front cover on machine. *This adjustment may change the amount of ground coffee dispensed. CHANGING A BROKEN SHEAR DISK 1. Unplug the power cord. 2. Empty the hopper of beans. 3. Take out the thumb screws (10) to remove the grind cap (6). 4. Pull out the grinding burr/feed worm assembly (2). Half of the grinding burr set will remain within the housing. 5. Separate the shear cap (5) and shear drive (3). The snapped shear disk (4) should fall from the shear drive. 6. Inspect and brush out the housing (1).. Especially look for anything that may have broken the shear disk. 7. Insert the feed worm and grinding burr onto the motor shaft. 8. Push the shear drive through the burr/feed worm assembly and align it with the tongue on the motor shaft. 9. Rotate the burr/feed worm assembly to align the slot with narrow slot on shear drive. 10.Insert a new shear disk into the slot. Cover with the shear cap. 11.Replace the grind cap and two thumb screws. FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO WWW.WILBURCURTIS.COM 1 TIMER SETTING – DHG 1. To set the timer, place an empty filter paper below the chute. Pour whole bean coffee into the hopper. 2. Open the lower cover to reveal the timer. PARTS 3. On the timer control board, locate the programming switch. Switch from RUN to PROG (see illustration, left). DIAGRAM 4. On the front cover, select the desired switch to program, REGULAR or DECAF. Press and hold this switch. MOTOR ASSY 5. The grinder motor and auger motor will start grinding coffee. When the desired ground coffee output is reached, release the grind 11 switch. The auger motor will shut off, stopping the flow of coffee from the hopper. The grind motor will continue to run until the delay has elapsed. 6. Move the program switch to RUN. This will save the time setting. 7. Repeat steps 1 to 6 for the other grind switch. NOTE: Time settings in this table are only approximate. Amounts will vary with grind texture and specific coffee bean. Weigh your output, then make adjustments as necessary. 1 10 9 INDEX PART DESCRIPTION 3 NUMBER NUMBER 54 1 WC-9135 MOTOR CRUSHING GRINDER ASSY 120VAC 7 6 2 WC-37283 KIT, GRINDER CHUTE NEW STYLE 3 WC-91026 CAPACITOR, COFFEE GRINDER ASSY 8 4 WC-91024 SHEAR DRIVE COFFEE GRINDER 5 WC-9107-6 DISC, SHEAR COFFEE GRINDER 6PCS 6 WC-91016 CAP, SHEAR DISK GRINDERS 7 WC-91017 COVER, GRINDER HOUSING W/LABEL 8 WC-91015 SCREW & THRUST PIN ADJUSTING ASSY 9 WC-91045 BURRS, SET CRUSH HIGH FLOW 10 WC-91021 SPRING, TENSION COFFEE GRINDER 2 11 WC-91020 WORM FEEDING ASSY CCG PARTS 1 DIAGRAMS SHG Hopper & Covers 2 3 4 19 34 22 21 2 Hopper & Top Cover Center Cover & Gear Motor DHG Only DHG Only 5 18 6 19 20 17 7 16 8 10 24 25 9 11 23 13 14 12 15 21 22 Item Part No. Description Motor & Base DHG & SHG 1 WC-9129 COVER, TOP ASSEMBLY SHG 2 WC-9117 HOPPER, COFFEE BEAN SHG 26 3 WC-9165 COVER, FRONT SHG 4 WC-3891 LABEL, SHG 35 34 32 5 WC-9118 TOP COVER, DUAL HOPPER DHG 6 WC-9131 ACRYLIC GLASS WINDOW 31 7 WC-9143 SPACER, 5/16 x 1/2 x 5/8 (OPTIONAL) 8 WC-9160 STAR WHEEL (OPTIONAL) 27 9 WC-9144 SPACER, 5/16 x 1/2 x 9/32 (OPTIONAL) 30 33 10 WC-9132 DIVIDER, DUAL HOPPER SS DHG, ILGD (OPTIONAL) 10A WC-9188 DIVIDER, W/HOLE ILG-11/DHG-11 27A 11 WC-9142 SHAFT FOR STAR WHEEL (OPTIONAL) 12 WC-9116 HOPPER, DUAL 28 28A 13 WC-9158 AUGER ANCHOR 14 WC-9183 BEARING, AUGER 29 15 WC-9157 DRIVE FOR AUGER 16 WC-9161 WRAP, HOPPER ASSY DHG, ILG 3 17 WC-9146 PANEL, TOP BACK 18 WC-9130 FUNNEL, DUAL HOPPER 19 WC-9134 CAP SEAL, S/S 20 WC-9151 GEAR MOTOR 21 WC-1504 CIRCUIT BREAKER, 10A 22 WC-9164 COVER ASSEMBLY, SPOUT & ARM 23 WC- 124 SWITCH, DECAF, 115V (H/W) 24 WC- 122 SWITCH, REGULAR COFFEE (BRW) 25 WC-3892 LABEL, SWITCH PANEL DHG 26 WC-9135 MOTOR, 1/2 HP, 120V, 1725 RPM 27 WC- 644 TIMER, GRINDER 120V 50SEC. MAX 27A WC- 628 TIMER, 120V .5-60 SEC SHG 28 WC-3503 LEG, 3/8”-16 STUD SCREW BUMPER 28A WC-3518 LEG, GLIDE 3/8”-16 STUD SCREW 29 WC-3502 BUMPER LEG, 8-32 THREAD (OLDER UNITS) 30 WC-9141 BASKET HOLDER 31 WC-9155 SPRING, BASKET HOLDER 32 WC-9123 NUT, HEX, 5/8 X 11/16 LONG 33 WC-4813 SCREW, 5/16 x 5/8 LONG SHOULDER 34 WC-37283 KIT, GRINDER CHUTE NEW STYLE 35 WC-9107-6 SHEAR DISK ELECTRICAL SCHEMATIC DHG 4 ELECTRICAL SCHEMATIC SHG ROUGH-IN DRAWINGS 13.50" DHG (34.2 cm) 2.00" (5.1 cm) 29.38" (74.5 cm) TOP VIEW 10.00" 14.50" 2.75" (25.4 cm) (37.0 cm) (7.0 cm) SHG 9.70" (24.6 cm) 13.40" (34.0 cm) 22.50" 2.10" (57.2 cm) (5.3 cm) 2.75" TOP VIEW (7.0 cm) 5 10.00" 14.50" (25.4 cm) (37.0 cm) Product Warranty Information The Wilbur Curtis Company certifies that its products are free from defects in material and workmanship under normal use. The following limited warranties and conditions apply: 3 Years, Parts and Labor, from Original Date of Purchase on digital control boards. 2 Years, Parts, from Original Date of Purchase on all other electrical components, fittings and tubing. 1 Year, Labor, from Original Date of Purchase on all electrical components, fittings and tubing. Additionally, the Wilbur Curtis Company warrants its Grinding Burrs for Forty (40) months from date of purchase or 40,000 pounds of coffee, whichever comes first. Stainless Steel components are warranted for two (2) years from date of purchase against leaking or pitting and replacement parts are warranted for ninety (90) days from date of purchase or for the remainder of the limited warranty period of the equipment in which the component is installed. All in-warranty service calls must have prior authorization. For Authorization, call the Technical Support Department at 1-800-995- 0417. Effective date of this policy is April 1, 2003. Additional conditions may apply. Go to www.wilburcurtis.com to view the full product warranty information. CONDITIONS & EXCEPTIONS The warranty covers original equipment at time of purchase only. The Wilbur Curtis Company, Inc., assumes no responsibility for substitute replacement parts installed on Curtis equipment that have not been purchased from the Wilbur Curtis Company, Inc. The Wilbur Curtis Company will not accept any responsibility if the following conditions are not met. The warranty does not cover and is void under the following circumstances: 1) Improper operation of equipment: The equipment must be used for its designed and intended purpose and function. 2) Improper installation of equipment: This equipment must be installed by a professional technician and must comply with all local electrical, mechanical and plumbing codes. 3) Improper voltage: Equipment must be installed at the voltage stated on the serial plate supplied with this equipment. 4) Improper water supply: This includes, but is not limited to, excessive or low water pressure, and inadequate or fluctuating water flow rate. 5) Adjustments and cleaning: The resetting of safety thermostats and circuit breakers, programming and temperature adjustments are the responsibility of the equipment owner. The owner is responsible for proper cleaning and regular maintenance of this equipment. 6) Damaged in transit: Equipment damaged in transit is the responsibility of the freight company and a claim should be made with the carrier. 7) Abuse or neglect (including failure to periodically clean or remove lime accumulations): Manufacturer is not responsible for variation in equipment operation due to excessive lime or local water conditions. The equipment must be maintained accord- ing to the manufacturer’s recommendations. 8) Replacement of items subject to normal use and wear: This shall include, but is not limited to, light bulbs, shear disks, “0” rings, gaskets, silicone tube, canister assemblies, whipper chambers and plates, mixing bowls, agitation assemblies and whipper propellers. 9) Repairs and/or Replacements are subject to our decision that the workmanship or parts were faulty and the defects showed up under normal use. All labor shall be performed during regular working hours. Overtime charges are the responsibility of the owner. Charges incurred by delays, waiting time, or operating restrictions that hinder the service technician’s ability to perform service is the responsibility of the owner of the equipment. This includes institutional and correctional facilities. The Wilbur Curtis Company will allow up to 100 miles, round trip, per in-warranty service call. RETURN MERCHANDISE AUTHORIZATION: All claims under this warranty must be submitted to the Wilbur Curtis Company Technical Support Department prior to performing any repair work or return of this equipment to the factory. All returned equip- ment must be repackaged properly in the original carton. No units will be accepted if they are damaged in transit due to improper packaging. NO UNITS OR PARTS WILL BE ACCEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION (RMA). RMA NUMBER MUST BE MARKED ON THE CARTON OR SHIPPING LABEL. All in-warranty service calls must be performed by an authorized service agent. Call the Wilbur Curtis Technical Support Department to find an agent near you. WILBUR CURTIS CO., INC. E-Mail: email@example.com 6913 Acco St., Montebello, CA 90640-5403 USA Phone: 800/421-6150 Fax: 323-837-2410 Technical Support Phone: 800/995-0417 (M-F 5:30A - 4:00P PST) Web Site: www.wilburcurtis.com FOR THE LATEST SPECIFICATION INFORMATION GO TO WWW.WILBURCURTIS.COM Printed in U.S.A. 12/10 F-3209-S Rev C ecn 12864 .firstname.lastname@example.orgC 6/16/9 . ECN 10457 . revB 3/08 ECN 9382 revA 10/15/01.13.0 . edr 3167 Rev NC