Curtis ISLG Single Coffee Grinder Instruction Manual

June 16, 2024
Curtis

Curtis ISLG Single Coffee Grinder

Curtis-ISLG-Single-Coffee-Grinder-product

Product Information

Specifications

  • Models Included: SLG, ISLG
  • Designed for commercial use
  • Rated at 120VAC, 15 amps
  • ISO 9001 registered

Product Usage Instructions

SLG

  1. Install the grinder on a firm, level base in a location with access to a grounded electrical outlet.
  2. Test the unit by running some whole-bean coffee through the grinder. If any problems occur, refer to the troubleshooting section on www.wilburcurtis.com or call Technical Service at 800-995-0417.
  3. Lift off the clear hopper lid and fill the hopper with whole coffee beans.
  4. Place a new filter into your brew cone and slide it into the brew cone rails on the grinder.
  5. Push the START switch on the front panel to start grinding coffee into the brew cone.
  6. Wait for the grinder motor to stop before removing the brew cone.
  7. Do not remove the brew cone while the brew light is flashing to avoid scalding.

ISLG

  1. Turn both units OFF.
  2. Place the grinder close enough to the brewer so the InterLock cable will reach the brewer.
  3. Place the brew cone into the rails on the grinder and press one of the grind buttons on the switch panel.
  4. When the grinder motor stops, remove the brew cone and slide it into the rails on the brewer.
  5. Press the brew switch with the blinking indicator light to start a brew cycle.
  6. To cancel a brew cycle, press the ON/OFF switch on the brewer. Brew cycles in the process will be cancelled.

Adjusting the Grinds

  1. Empty the hopper of coffee beans and run the grinder to clear the grinding burrs of coffee.
  2. Open the housing cover to locate the adjustment screw and lock nut.
  3. Loosen the lock nut.
  4. Run the motor during adjustment. Turning the adjustment screw clockwise will result in a finer grind. If you hear the grinding burrs starting to touch while turning, immediately back off by 1/8th turn. Turning counterclockwise will produce a coarser grind.
  5. With a screwdriver holding the adjustment screw in place, tighten the locknut.
  6. Run some coffee beans through the machine to check the grind adjustment.
  7. Replace the front cover on the machine. Note that this adjustment may change the amount of ground coffee dispensed.

FAQ

Q: Where can I find more specifications and information about the product?
A: For the latest specifications and information, please visit www.wilburcurtis.com.

Important Safeguards/Conventions

This appliance is designed for commercial use. Any servicing other than cleaning and maintenance should be performed by an authorized Wilbur Curtis service centre.

  • Do NOT immerse the unit in water or any other liquid
  • To reduce the risk of fire or electric shock, do NOT open the top panel. No user-serviceable parts inside. Repair should be done only by authorized service personnel.
  • Keep hands and other items away from hot parts of the unit during operation.
  • Never clean with scouring powders or harsh implements.

Conventions

  • WARNINGS – To help avoid personal injury
  • Important Notes/Cautions – from the factory

QUICK START & SETUP

QUICK START & SETUP – SLG

  1. Install the grinder on a firm, level base in a location where it can be connected to a grounded electrical outlet of 120VAC, rated at 15 amps.
  2. Test the unit by running some whole-bean coffee through the grinder. If any problems are encountered, refer to the troubleshooting section complete at www.wilburcurtis.com or call Technical Service at 800-995-0417.

SETUP INSTRUCTIONS – ISLG

  1. Turn both units OFF.
  2. Place the grinder close enough to the brewer so the InterLock cable will reach the brewer.

OPERATING INSTRUCTIONS

OPERATING INSTRUCTIONS – SLG
The SLG grinder is adjusted at the factory to grind 2 – 2.5 ounces of medium- roast coffee.

  1. Lift off the clear hopper lid and fill the hopper with whole coffee beans.

  2. Place a new filter into your brew cone. Slide the brew cone into the brew cone rails on the grinder.

  3. Push the START switch on the front panel. The SLG will start to grind coffee into the brew cone.

  4. Wait for the grinder motor to stop before removing the brew cone.

OPERATING INSTRUCTIONS – ISLG
Factory settings: SMALL grind button, set for 5 seconds (1.3 oz). LARGE grind button, set at 15 seconds (3.8 oz). ISLG -13, has an additional MEDIUM button set for 10 seconds.

  1. Place the brew cone into the rails on the grinder. Press one of the grind buttons on the switch panel. Ground coffee will start to fill the brew cone.

  2. When the grinder motor stops, remove the brew cone and slide it into the rails on the brewer.

  3. Press the brew switch that displays the blinking indicator light. This starts a brew cycle.

To cancel a brew cycle, press the ON/OFF switch on the brewer. Brew cycles in the process will be cancelled.

ADJUSTING THE GRINDS

  1. Empty hopper of coffee beans. Run grinder to clear grinding burrs of coffee.
  2. Open the housing cover to locate the adjustment screw (8) and lock nut (7). Loosen lock nut.
  3. Run motor during adjustment. Turning the adjustment screw clockwise will result in a finer grind (if, while turning, you hear the grinding burrs starting to touch, immediately, back off 1/8th turn). Turning counterclockwise 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 the front cover on the machine.

This adjustment may change the amount of ground coffee dispensed.

CHANGING A BROKEN SHEAR DISK

  1. Unplug the power cord.
  2. Open the hopper and remove the beans, then open the front cover.
  3. On the grind motor assembly, take out two thumb screws (10) and remove the grind cap (6).
  4. Pull out grinding burr/feed worm assembly (2). The inner half of grinding burrs will remain with housing.
  5. Separate sheer cap (5) and shear drive (3). A broken shear disk (4) should fall out of the slot in the drive.
  6. Inspect and clean housing (1) of coffee or debris. Especially, look for something that could have snapped the shear disk.
  7. Re-insert the feed worm and grinding burr on the motor shaft.
  8. Push shear drive through burr/feed worm assembly and align large slot with tongue on the motor shaft.
  9. Rotate the burr/feed worm assembly to align the slot with a narrow slot on the shear drive.
  10. Insert a new shear disk into the slot. Cover with the shear cap. Replace the grind cap and thumb screws.
  11. Return power to the unit.

PROGRAMMING

PROGRAMMING THE ISLG

NOTE: Before reprogramming the ISLG, the factory timer settings may be all you need.

The factory settings: The SMALL grind button is set for 5 seconds (1.3 oz). The LARGE grind button is set at 15 seconds (3.8 oz). On the ISLG -13, there is an additional MEDIUM button that is set for 10 seconds.

  1. Open timer cover (behind hopper). Find the timer and move the switch from RUN to PROGRAM.
  2. Use a stopwatch (recommended) or sweep second hand to time your batches. It is usually quicker to optimize the SMALL button first. You will then have a more accurate start point for optimizing the other grind button[s].
  3. Place an empty filter and cone under the grinder. With your stopwatch ready, press and hold the SMALL front panel button for the desired number of seconds. Weigh the grounds. Record the time and weight. If you are below your target weight, you can reinsert the filter and add time in small increments by pressing and holding the same button. Weigh again and add time as desired to reach your target weight. When you are satisfied with the amount, switch the timer back to RUN and re-grind to test the time and weight. Write down the results.
  4. When the time/weight programming is completed, install the front cover.

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.

Seconds Ounces Seconds Ounces
4 1.0 15 3.8
5 1.3 20 5.0
6 1.5 25 6.3
7 1.8 29 7.5
8 2.0 34 8.8
10 2.5 39 10.0
12 3.0 43 11.3

SETTING TIMER ON SLG GRINDER

  1. Take off the timer cover (behind the hopper) removing four screws. Locate timer.
  2. Timer controls are one high/low switch, allowing you to select a scale on the timer dial; the outside scale range is .5 through 15, inside scale range is 2 to 60.
  3. Test adjustment by grinding some coffee. When the amount is satisfactory, reinstall the timer cover.

PARTS LIST

Curtis-ISLG-Single-Coffee-Grinder-fig- \(5\)

  1. WC-9135 MOTOR CRUSHING GRINDER ASSY 120VAC
  2. WC-91022 MOTOR, GRINDER 120VAC
  3. WC-91026 CAPACITOR, COFFEE GRINDER ASSY
  4. WC-91024 SHEAR DRIVE COFFEE GRINDER
  5. WC-91025 SHEAR DISK
  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-91029 SPRINGBAFFLE LONG, NITRIC ACID COLORING
  10. WC-91027 SPRING BAFFLE SHORT, NITRIC ACID COLORING
  11. WC-91028 BAFFLE, SPOUT
  12. WC-91023 SPOUT, GRINDER HOUSING
  13. WC-91045 BURRS, SET CRUSH HIGH FLOW
  14. WC-91021 SPRING, TENSION COFFEE GRINDER
  15. WC-91020 WORM FEEDING ASSY CCG

PARTS DIAGRAMS

Curtis-ISLG-Single-Coffee-Grinder-fig- \(6\)Curtis-
ISLG-Single-Coffee-Grinder-fig- \(7\)

Item| Part No.|

Description

---|---|---
1| WC-9178| HOPPER COVER, CLEAR PLASTIC
2| WC-9169| HOPPER
3| WC- 628| TIMER
4| WC-1504| CIRCUIT BREAKER
5| WC-3502| FOOT, RUBBER WITH 8-32 STUD
6| WC-6550| RAILS, BREW CONE
7| WC-9135| MOTOR, 120V
8| WC-38027| LABEL, FRONT COVER SLG
9| WC-3796| LABEL, INSIDE FRONT COVER ADJ GRIND & SHEAR DISK
10| WC- 101| SWITCH, START
11| WC- 652| TIMER, INTERLOCK
12| WC-6470| COVER, FRONT FOR INTERLOCK
13| WC- 122| SWITCH, 12 CUP, 24 CUP, OR 36 CUP
14| WC- 121| SWITCH, ON/OFF
15| WC-39062| LABEL, SWITCH PANEL TWO BATCH (ISLG -10)
15A| WC-39048| LABEL, SWITCH PANEL THREE BATCH (ISLG -13)

illustrated Parts Breakdown – ISLG
The parts called out in this illustration are for the ISLG grinder and are the only parts that are different from the SLG grinder. All other parts are identical. Illustrated, is the ISLG -10 (a two-batch grinder). The ISLG -13 uses a slightly different switch panel and has an additional switch (a three- batch grinder).

ELECTRICAL SCHEMATIC

Curtis-ISLG-Single-Coffee-Grinder-fig- \(8\)

WARRANTY

We hereby certify that the products manufactured by the Wilbur Curtis Company, Inc., are, to the best of our knowledge, free from all defects and faulty workmanship.

The following warranties and conditions are applicable:

  • 90 Days for Labor and 1 Year Parts from the Date of Purchase from the Factory: This warranty covers all electrical parts, fittings and tubing.
  • 40 Months or 40, 000 Pounds of Coffee on a set of Grinding Burrs. (ADS Grinders)
  • 2 Years from Date of Purchase: This warranty covers electronic control boards and leaking or pitting of a stainless steel body of a Brewer or Urn.
  • 90 Days from Date of Purchase: On replacement parts that have been installed on out-of-warranty equipment

All in-warranty service calls must have prior authorization from the manufacturer. For an RMA (Return Merchandise Authorization) number, call the Technical Service Department at 1-800-995-0417. The Wilbur Curtis Company will allow up to 100 miles, round trip, per in-warranty service call.

CONDITIONS & EXCEPTIONS
The warranty covers the original equipment at the 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 these 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, certified technician and must comply with all local electrical, mechanical and plumbing codes.

  3. Wilbur Curtis Company will not be responsible for the operation of equipment other than the stated voltages on the serial plate.

  4. Abuse or neglect (including failure to periodically clean or remove lime accumulations). The manufacturer is not responsible for variations in equipment operation due to excessive lime or local water
    conditions.

  5. Replacement of items subject to normal use and wear. This shall include, but is not limited to, light bulbs, shear disks, “0” rings, gaskets, and canister assemblies. whipper chambers and plates, mixing bowls, agitation assemblies and whipper propellers.

  6. Any faults resulting from inadequate water supply. This includes, but is not limited to, excessive or low water pressure, and inadequate or fluctuating water flow rate.

  7. All repairs and/or replacements are subject to our decision that the workmanship or parts were faulty and the defects showed up under normal use.

  8. All labour shall be performed during regular working hours. Overtime charges are the responsibility of the owner.

  9. Charges incurred by delays, waiting time, or operating restrictions that hinder the service technician’s ability to perform service are the responsibility of the owner of the equipment. This includes institutional and correctional facilities.

  10. All claims under this warranty must be submitted to the Wilbur Curtis Company Technical Service Department before the return of the unit to the factory.

  11. All equipment returned to us must be repackaged properly in the original carton. No units will be accepted if they are damaged in transit due to improper packaging.

  12. Damaged in transit.

  13. The resetting of safety thermostats and circuit breakers, programming and temperature adjustments are the responsibility of the equipment owner.

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 center, where service is available. Call the factory for a location near you.

Contact Information

WILBUR CURTIS CO., INC.

FOR THE LATEST SPECIFICATION INFORMATION GO TO WWW.WILBURCURTIS.COM.

References

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