Wilbur Curtis Company, inC.
Service Manual – Single and Dual Hopper Grinders
Important Safeguards & Symbols
This appliance is designed for commercial use. Any servicing other than cleaning and
maintenance should be performed by an authorized Wilbur Curtis service technician.
• Do NOT immerse the unit in water or any other liquid.
• To reduce the risk of re 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
Models Included
DHG
SHG
CAUTION: Please
use this setup
procedure before
attempting to use this
grinder. Failure to follow the
instructions can result in
injury or the voiding of the
warranty.
WARNING TO
AVOID SCALDING,
Remove the brew
cone carefully. The brew
cone contains hot coffee
grounds. Wait until the
brewer indicates that the
brew is nished before
removing.
SETUP STEPS
1. Install the grinder on a rm, level base in a location where it can be connected to a
grounded electrical outlet 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 to the troubleshooting section complete at www.wilburcurtis.com
or call Technical Support at 800-995-0417.
OPERATING INSTRUCTIONS
1. Lift open the top cover of the grinder and ll with fresh whole bean
coffee. Close the cover.
2. Position an empty coffee container onto the brew deck. When
brewing into a GEMINI brewer, turn on the warmer to pre-heat the
Satellite.
3. Place a new paper lter into the brew cone.
4. Insert the brew cone into the basket holder arms on the grinder.
5. On the grinder control panel, select and press the desired coffee,
Decaf or Regular. The motor will start grinding and will stop at the
pre-determined volume.
6. Make sure the motor comes to a stop before removing the brew
cone.
ISO 9001:2008 REGISTERED
WILBUR CURTIS CO., INC.
6913 West Acco Street
Montebello, CA 90640-5403
For the latest information go to
www.wilburcurtis.com
Tel: 800-421-6150
Fax: 323-837-2410
7. Transfer the lled brew cone to the brewer and press the desired
brew button. The brew cycle is complete when the brew light
stops ashing.
FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO WWW.WILBURCURTIS.COM
1
ADJUSTING THE GRINDS*
1. Empty the hopper of coffee beans. Run the grinder for a short time to
clear grinding burrs of coffee.
2. Open the housing cover (10) to locate the adjustment screw (8) and lock
nut (7). With a wrench, loosen the lock nut.
3. Turn the adjustment screw clockwise for a ner grind. Turn the screw
counter clockwise for a more coarse grind. With the motor running, pour
coffee beans into the hopper and turn the screw to make the adjustment.
If you hear the grinding burrs starting to touch, immediately, back off
1/8th turn.
4. When the desired grind texture is satisfactory, hold the adjustment screw
in place with the screwdriver and tighten the locknut.
5. Grind some coffee beans to conrm the 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 (9) to remove the housing cover (10).
4. Pull out the grinding burr/feed worm assembly (3). The mating half of the grinding burr set remains within the
housing.
5. Separate the shear cap (6) and shear drive (4). The snapped shear disk (5) should fall from the shear drive.
6. Inspect and brush out the housing (1).. Especially look for anything that could 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.
Cleaning the Coffee Grinder
CAUTION – Unplug the grinder from the electrical power source.
Do not use cleansers, bleach liquids, powders or any other substance containing chlorine. These products
promote corrosion and will pit the stainless steel. USE OF THESE PRODUCTS WILL VOID THE WARRANTY.
1. Brush coffee grounds from the dispensing spout. Wipe off the surrounding area.
2. Make a mild cleaning solution. Mix dish washing liquid in warm water.
3. Avoid spilling liquid into the grind housing. Wipe exterior surfaces with a cloth moistened with cleaning solution.
5. Wipe exterior surfaces with a water soaked cloth to rinse off all traces of the cleaning solution.
6. Dry exterior surfaces with a clean soft cloth. Polish exterior surfaces with stainless steel polish.
8. Return power to the grinder.
A tablet style grinder cleaner may be used to clean the inside of the grind housing, the burrs and chute. The product
will eliminate taste and odor left in the grinder from grinding avored coffee. The regular use of grind cleaner reduces
the need to disassemble the grinder to clean it.
1. Empty coffee beans from the hopper. Plug power cord into the electrical outlet.
2. Place a container under the grind spout and run the grinder to empty the housing of all coffee.
3. Pour in grinder cleaner granules or tablets into the hopper (use manufacturer’s recommendations).
4. Press a grind button, running the grinder until the cleaner empties from the spout.
5. Rell the grinder with whole bean coffee and run two grind cycles to purge the grind housing of residual cleaner.
2
PARTS DIAGRAM
The parts illustrated and listed here are unique to the DHG grinder un-
less specied as bold type in the parts list..
Hopper & Top Cover
1
2
12
3
Center Cover & Gear Motor
13
14
15
4
5
6
7
18
19
17
16
8
10
9
Motor & Base
DHG & SHG
22
20
21
11
23
ITEM № PART №
WC-9118
1
WC-9131
2
WC-9143
3
WC-9160
4
WC-9144
5
WC-9132
6
WC-9188
6A
WC-9142
7
WC-9116
8
WC-9158
9
WC-9183
10
WC-9157
11
WC-9146
12
WC-9130
13
WC-9134
14
WC-9151
15
WC-1504
16
WC- 124
17
WC- 122
18
WC-3892
19
WC-3503
20
WC-3518
20A
WC-9141
21
WC-9155
22
WC-4813
23
DESCRIPTION
TOP COVER, DUAL HOPPER DHG
ACRYLIC GLASS WINDOW
SPACER, 5/16 x 1/2 x 5/8 (OPTIONAL)
STAR WHEEL (OPTIONAL)
SPACER, 5/16 x 1/2 x 9/32 (OPTIONAL)
DIVIDER, DUAL HOPPER SS DHG (OPTIONAL)
DIVIDER, WITH HOLE ILG-11/DHG-11
SHAFT FOR STAR WHEEL (OPTIONAL)
HOPPER, DUAL
AUGER ANCHOR
BEARING, AUGER
DRIVE FOR AUGER
PANEL, TOP BACK
FUNNEL, DUAL HOPPER
CAP SEAL, S/S DHG & SHG
GEAR MOTOR
CIRCUIT BREAKER, 10A DHG & SHG
SWITCH, DECAF, 115V (H/W)
SWITCH, REGULAR COFFEE (BRW)
LABEL, SWITCH PANEL DHG
LEG, 3/8”-16 STUD SCREW BMPR DHG & SHG
LEG, GLIDE 3/8”-16 STUD SCREW DHG & SHG
BASKET HOLDER DHG & SHG
SPRING, BASKET HOLDER DHG & SHG
SCREW, 5/16x5/8 L SHOULDER DHG & SHG
20A
3
PARTS DIAGRAM
SHG
The parts illustrated and listed
here are unique to the SHG
grinder. All other parts are
shared unless specied.
1
2
3
4
19
DESCRIPTIONITEM № PART №
1
2
3
4
5
6
WC-9129
WC-9117
WC-9165
WC-3891
WC- 101
WC- 628
COVER, TOP ASSEMBLY SHG
HOPPER, COFFEE BEAN SHG
COVER, FRONT SHG
LABEL, SHG
SWITCH, ON/OFF NON-LIT SPST MOMENTARY
TIMER, 120V .5-60 SEC SHG
PARTS DIAGRAM MOTOR ASSY
The parts illustrated and listed here
are shared between both
the DHG and SHG
grinders.
9
8
5
6
1
7
3
4
5
1
2
3
4
5
6
7
7A
8
9
9A
WC-9135
WC-37283
WC-91026
WC-91024
WC-9107-6
WC-91015
WC-91045
WC-91050
WC-91021
WC-91020
WC-91051
DESCRIPTIONITEM № PART №
MOTOR SLICING GRINDER ASSY 120VAC
KIT, GRINDER CHUTE NEW STYLE
CAPACITOR, COFFEE GRINDER ASSY
SHEAR DRIVE COFFEE GRINDER
DISC, SHEAR COFFEE GRINDER 6PCS
SCREW & THRUST PIN ADJUSTING ASSY
BURRS, SET CRUSH HIGH FLOW
BURR, COMPLETE SET SLICING
SPRING, TENSION COFFEE GRINDER
WORM FEEDING ASSEMBLY
FEEDWORM, SLICING GSG
6
2
4
ELECTRICAL SCHEMATIC – DHG
5
ELECTRICAL SCHEMATIC – SHG
ROUGH-IN DRAWINGS
DHG
6
SHG
TIMER SETTING – DHG
1. To set the timer, place an empty lter paper below the chute. Pour whole bean coffee
into the hopper.
2. Open the lower cover to reveal the timer.
3. On the timer control board, locate the programming switch. Switch from RUN to PROG
(see illustration, left).
4. On the front cover, select the desired switch to program, REGULAR or DECAF. Press
and hold this switch.
5. The grinder motor and auger motor will start grinding coffee. When the desired ground coffee output is reached,
release the grind switch. The auger motor will shut off, stopping the ow 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.
TIMER SETTING SHG
1. Take off timer cover, located behind hopper. Remove the four screws holding
the cover in place. The timer is found inside this cover. Also refer to the illustrated parts diagram on page 3.
2. The timer controls are a high/low switch and a dial with a corresponding scale.
The switch allows you to select a scale on the dial. The outside scale range
is ½ second through 15 seconds. The inside scale range is 2 seconds to 60
seconds.
3. Test a new adjustment by grinding some coffee. When the results are satisfactory, reinstall timer cover.
7
Product Warranty Information
The Wilbur Curtis Company certies 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, ttings and tubing.
1 Year, Labor, from Original Date of Purchase on all electrical components, ttings 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 rst. 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 uctuating
water ow 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 equipment 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 nd an agent near you.
1/28/14 . 13.3 . ECN 15619 . rev D
WILBUR CURTIS CO., INC.
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) E-Mail: techsupport@wilburcurtis.com
Web Site: www.wilburcurtis.com
FOR THE LATEST SPECIFICATION INFORMATION GO TO WWW.WILBURCURTIS.COM
Printed in U.S.A. 2/2014 F-3209-S Rev D
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