Fetco GR Series Specifications

www.fetco.com
User’s Guide and Operator Instructions
GR Series Coffee Grinders
Models:
GR-1.2; GR-1.3; GR-2.2; GR-2.3
FETCO Commercial Beverage Equipment
Left: GR-1.3 Three recipe -15 pound capacity commercial grinder Right: GR-2.3 Three recipe-dual 5 pound capacity hopper commercial grinder
SKU Product Description Features
G01012
GR-1.2- One permanent hopper – 2 Portion Sizes 
FETCO slicing type grinding burrs
Self-adjusting brew basket holder
Fully automatic, with digital timer control
Front accessible & Service Friendly
Motor overload protection
Control board overload protection
G01013
GR-1.3- One permanent hopper – 3 Portion Sizes
G02012
GR-2.2- Dual removable hoppers – 2 Portion Sizes per side
G02013
GR-2.3- Dual removable hoppers – 3 Portion Sizes per side
Contact Information
FETCO®
Food Equipment Technologies Company
600 Rose Road
Lake Zurich • IL • 60047-1560 • USA
© 2008-2019 Food Equipment Technologies Company
Internet: www.fetco.com
Phone: [phone] (US & Canada)
[phone]
Fax: [phone]
Email: [e-mail]
[e-mail]
This user guide describes GR-1 &GR-2 models manufactured after 2010. Please refer to User Guide P010 for models previous to 2010
Please refer to User Guide P160 for FETCO CE International GR-1 and GR-2 models
Coffee Grinders GR-1 and GR-2 Series P185 March 2019
fetco.com

Go to fetco.com for the latest versions of all information Page 2P185 MARCH 2019
Table of Contents
Specifications .............................................................2
Dimensions & Utility Connections ..............................2
Installation ..................................................................3
Operating Instructions ................................................3
Service and Support...................................................3
Warranty.....................................................................3
Principles of Operation...............................................4
Grind Adjustment .......................................................4
Programming Instructions ..........................................5
Parts ...........................................................................6
Wiring Diagrams.......................................................12
Specifications
* Grind rate is determined at medium grind with medium size, average to dark roast beans
Dimensions & Utility Connections
Hopper Capacity: GR-1.2 & 1.3: 15 lbs. / 6.8 kg.
GR-2.2 & 2.3: 5 lbs. / 2.3 kg. each
:
North America: 120 VAC, single phase
Motor: 5.7 amps, 370 Watts, 0.67 HP IP 44
NEMA 5-15P plug/cord
Timer Range: 00.1 sec. – 999.0 sec.
Grind Rate*: 18 oz. / 510g per minute
Export: 230 VAC, single phase
Motor: 3.8 amps, 370 Watts, 0.74 HP IP 44
Plug/cord set per country electrical
Grind Setting Default: Medium
Brew Basket Size: 7” to 9” diameter

Go to fetco.com for the latest versions of all information Page 3P185 MARCH 2019
Installation
Warning: Read this User’s Guide before installing. Damage caused by improper installation will not be
covered under warranty.
1. Inspect the container for visual or hidden damage. The carrier must be notified of any punctured or
damaged cartons immediately.
2. Install the grinder in selected location making sure surface is level, and that grinder will fit. Caution:
Never push equipment against cords or wall outlets.
3. Remove cord from inside hopper and plug into the back of the grinder.
4. Before plugging grinder into 120 volt, 15 amp. wall outlet make sure
outlet is not overloaded, a dedicated circuit is preferred.
5. Following the operating procedures below test grinder for proper
operation.
6. If you need further assistance please call our Technical Support Dept.
at 800-338-2699 or e-mail [e-mail].
Operating Instructions
1. Turn the on/off switch to the on position.
The power switch will illuminate to indicate that the grinder has power.
2. Fill the hopper(s) with whole coffee beans.
The GR-2 models have two 5lb. removable hoppers. The hoppers must sit squarely on the floor of the
hopper chamber. Before placing the hoppers inside the hopper chamber, make sure the chamber is clear
of any stray whole beans and debris, or the hoppers will not sit properly.
Both hoppers with their covers must be in place before operating the grinder.
3. Place the brew basket with paper coffee filter in the plastic holding arms.
The plastic arms will hold all FETCO brew baskets up to 16” X 6”; and will fit most other manufacturers’
brew baskets.
For brew baskets that do not fit into the plastic arms, place the coffee filter on the lower shelf and grind
directly into the filter.
4. Press the desired portion switch.
See the Programming section for instructions on setting the various batch sizes.
5. Allow grinder to complete its cycle then remove brew basket from plastic holding arms.
Cleaning:
1. Use stainless steel cleaner on all stainless steel surfaces. (Never use abrasives on these surfaces.)
2. Use damp cloth on other surfaces. Use mild detergent as needed.
3. Removable hoppers on GR-2 models are dishwasher safe (the covers are not).
4. After washing hoppers FETCO recommends hand drying them.
5. Grinder burrs and casings may be cleaned with proprietary cleaner. We recommend Grindz™ by URNEX
Service and Support
For service and support information, contact the Technical Support department. Our hours are 7:00 AM to
6:00 PM Central Time, Monday through Friday. Phone: [phone] or [phone]. Email:
[e-mail].
Utilize only qualified beverage equipment service technicians for service. A Service Company Directory may
be found on our web site, http://www.fetco.com.
Warranty
All FETCO grinders come with a limited warranty. Warranty service must be authorized by the Technical
Support Department. A Return Authorization number will be issued for all parts replaced under warranty.

Go to fetco.com for the latest versions of all information Page 4P185 MARCH 2019
Principles of Operation
GR-1
When one of the start switches is pressed, the timer energizes the grinding motor. The coffee beans are fed into
the grinding chamber by a rotating auger spring. When the timed cycle is complete, voltage is removed from
grinding motor.
The power/stop switch is used only when it is necessary to interrupt the grind cycle before the cycle is finished.
GR-2
When one of the start switches is pressed, the timer simultaneously energizes the grinding motor and the hopper
solenoid. The hopper solenoid opens the guillotine on the bottom of the hopper, which allows the coffee beans to
drop into the grinder. The coffee beans are fed into the grinding chamber by a rotating auger spring.
When the timed cycle is complete, voltage is removed from the hopper solenoid and the guillotine closes, stopping
the flow of beans out of the hopper. The auger spring continues to feed any remaining beans into the grinding
chamber.
Several seconds after the guillotine closes, voltage is removed from the grinding motor. This delay ensures that all
beans have passed through the grinding chamber, preventing cross contamination of different coffees.
The motor delay is factory set at 20 seconds, but can be adjusted if necessary. (See Programming section.)
The power/stop switch is used only when it is necessary to interrupt the grind cycle before the cycle is finished.
Grinder Foreign Object Protection
FETCO coffee grinders feature two types of overload protection to prevent damage to the unit if a foreign object
enters the grinding chamber and stalls the motor.
•The control board is equipped with a thermal breaker with an audible alarm that will cut power to the motor if
the control board overheats.
•The motor is equipped with a thermal breaker (no alarm) that will cut power to the motor if the motor
overheats.
Once the foreign object is removed and the unit cools down, the thermal breakers will automatically reset.
Warning: If this occurs DO NOT TRY TO FIX THIS PROBLEM YOURSELF. Immediately unplug the grinder and call a
qualified service technician.
Grind Adjustment
1. Empty the hopper(s).
GR-1: Scoop out as many beans as possible. Lift the window up and sweep out the remaining beans.
GR-2: Remove both hoppers and dump the beans out. Place both hoppers back in grinder.
2. Press one of the large portion switches. This will clear the grinding chamber of any remaining beans.
3. Remove the front cover. There are 2 screws in front and 2 underneath near the coffee outlet.
4. Using a 7/8” or 22 mm wrench turn the retaining nut counter-clockwise at least one turn.
5. Using a 3/8” to 1/2” standard screwdriver turn the adjustment screw clockwise for a finer grind, counter-
clockwise for a coarser grind. Note: Do not exceed more than a 1/4 turn in either direction.
6. Turn retaining nut clockwise, locking adjustment screw in place.
7. Grind a small amount of coffee beans to test the setting. Repeat the above steps if necessary.
To reset the grind setting to the factory default:
1. Follow steps 1 - 4 of the grind adjustment procedure.
2. Turn the adjustment screw clockwise until the grinding discs touch, then
back off slightly.
3. Using a marker, mark the twelve o’clock position of the adjustment screw.
4. Turn the screw counter clockwise to just past the four o’clock position.
5. Turn retaining nut clockwise locking adjustment screw in place.
6. Test by grinding a small batch.
Note: It may be necessary to adjust the grind time to compensate for the new grind setting.
A finer grind will produce less ground coffee per minute and a coarser grind will produce more ground coffee per minute.
FINE
COARSE

Go to fetco.com for the latest versions of all information Page 5P185 MARCH 2019
Programming Instructions
Software Version 1.2 and Above
(See Appendix A for units manufactured before August 2003)
Turn the power switch off.
Remove the lower cover.
Turn the power switch on.
The currently programmed model number will flash
briefly. (example: 12 = GR-1.2, 23 = GR-2.3)
Then, if the software default settings are currently
programmed, the display will read DEF. If not,
the display will be blank.
Hold SET for 5 seconds, until the display reads SET.
Release SET, the software version will be displayed.
(Example: 1.2, 1.3, etc.)
Press SET. The display will read TYP briefly,
followed by the currently programmed model number.
Press the UP and DOWN buttons until the correct model
number is displayed. (GR-1.2 = 12, GR-2.3 = 23, etc.)
Press SET. The display will read DEF.
Press SET to skip this section.
To reset the unit to factory default settings, hold SET for
5 seconds, until STO is displayed briefly. This will exit
programming mode. To re-enter programming mode, hold
SET for 5 seconds again.
Press SET.The display will read DLY briefly,
followed by the current motor delay setting in seconds.
(GR-2.2 & 2.3 only)
Press UP and DOWN to adjust.
Press SET.The first switch number will be displayed
briefly, followed by the current setting in seconds.
Example: LH1 = Left side small batch, 7.0 seconds
Press SET. The next switch number will be displayed
briefly, followed by the current setting.
Example: LH2 = Left side medium batch, 13.5 seconds.
Continue this way until all switches are programmed.
See the chart for switch designations.
Important! To save your changes and return to operating
mode, you must hold SET for 5 seconds until the display
reads STo.
Approximate grind times for medium size, average to dark roast beans.
Batch Size
Typical Coffee Dosage
Timer setting
Ounces
Grams
½ Gallon
2 – 4 oz.
57 – 113 grams
6.7 - 13.3 sec.
2.5 – 3.0 Liters
2 - 4.5 oz.
57 – 128 grams
6.7 - 15 sec.
1 Gallon
4 – 8 oz.
113 – 227 grams
13.3 - 27 sec.
1.5 Gallons
6 – 12 oz.
170 – 340 grams
20 – 40 sec.
2 Gallons
8 – 16 oz.
227 – 454 grams
27 – 53 sec.
3 Gallons
12 – 24 oz.
340 – 680 grams
40 - 80 sec.
6 Gallons
39 – 51 oz.
1.1 – 1.44 kg.
130 -170 sec.
Grind times are affected by conditions of the coffee beans such as: age, size, oily or dry, and degree of roast.
23
TYP
SET
DEF
LH1
LH2
7.0
13.5
X.X
23
DEF
STo
STo
20.0
CONTROL BOARD
DLY
MOTOR DELAY
This sets the time that the motor
continues to run after the hopper
guillotine closes on GR-2 series
grinders. This delay ensures that
all beans have passed through
the grinding chamber,
preventing cross contamination
of different coffees.
The motor delay is added to the
end of the grind time setting.
Default setting: 20 sec.
SWITCH DESIGNATIONS
Model GR-
1.2
1.3
2.2
2.3
Left Small
LH1
LH1
LH1
LH1
Left Med.
LH2
LH2
Left Large
LH3
LH3
LH3
LH3
Right Small
RH1
RH1
Right Med.
RH2
Right Large
RH3
RH3
DEFAULT SETTINGS
Small – LH1/RH1 = 7 sec.
Med. – LH2/RH2 = 13.5 sec.
Large – LH3/RH3 = 20.0 sec.

Go to fetco.com for the latest versions of all information Page 6P185 MARCH 2019
Parts
Figure 1 – GR-1.2 & GR-1.3

Go to fetco.com for the latest versions of all information Page 7P185 MARCH 2019
Parts List – Figure 1
PART NO DESCRIPTION
1
1
1111.00025.00
WELDMENT BODY, COMPLETE, GR-1
2
4
1073.00006.00
FOOT, GRINDER
3
1
1102.00023.00
COVER, GRINDER SERVICE ASSEMBLY, W/O RAILS
4
1
1021.00005.00
ROD, VIBRATION DAMPENING, GR-2
5
1
1082.00018.00
SCREW, TRUSS HD. PHIL. SM, #8 X 1/2 LG.
6
4
1083.00019.00
WASHER, #10 SCREW SIZE, SPRING LOCK
7
4
1082.00031.00
SCREW, #10-32 X 5/8", PAN HD PHIL, MACHINE
8
8
1082.00033.00
SCREW, PAN HD PHIL. MACH., W/DUAL ACT WASHER, #6-32x3/8LG.
9
1
1083.00011.00
WASHER, #8 SCREW SIZE, INTERNAL TOOTH LOCK
10
1
1084.00006.00
NUT, 8-32 18-8 HEX MACHINE SCREW
11
1
1108.00028.00
ASSY, BOARD CONTROL AND SOFTWARE,GR-1/2 100-120VAC
11
1
1108.00028.00
ASSY, BOARD CONTROL AND SOFTWARE,GR-1/2 200-240VAC
12
4
1029.00006.00
NUT, FINGER KNURLED, #4-40
13
1
1112.00023.00
BASE COVER WELDMENT, GR/GRF
14
1
1065.00003.00
CONNECTOR, POWER INLET, 15A, 250VAC
15
2 or 3
11058.00007.00
SWITCH, START ROCKER, MOMENTARY, 250VAC
16
1
11058.00006.00
SWITCH, POWER ROCKER RED, ILLUMINATED 120V
17
1
1102.00038.00
GRINDING MOTOR AND PLATE ASSY, 120V/60Hz
17
1
1102.00185.00
GRINDING MOTOR AND PLATE ASSY, 230V/50Hz
18
1
1045.00016.00
OVERLAY, GR-1.2
18
1
1045.00017.00
OVERLAY, GR-1.3
19
1
1023.00148.00
FUNNEL, HOPPER, GR-1
20
2
1083.00010.00
WASHER, #10 SCREW W/NEOPRENE-BONDED SEAL
21
2
1082.00023.00
SCREW, #8-32 X 3/8 TRUSS HD PHIL., MACHINE
22
2
1083.00022.00
WASHER, 3/8" SCREW SIZE, FLAT
23
2
1083.00020.00
WASHER, 3/8 SCREW SIZE, SPRING LOCK
24
2
1082.00032.00
SCREW, 3/8"-16 X 3/4" LG, HEX HEAD CAP
25
1
1001.00020.00
COVER, REAR, GR-1/GRF-2
26
1
1023.00041.00
HOLDER, BREW BASKET, GR-1/2
27
1
1028.00001.00
WINDOW, GR-1
28
1
1063.00003.00
CORD, POWER, AMERICAN, 120VAC, 13A, 6FT LG.
28
1
1063.00027.00
CORD, ENGLAND, 6.5FT
28
1
1063.00026.00
CORD, AUSTRALIAN, 6.5FT
28
1
1063.00025.00
CORD, EUROPEAN, 6.5FT
28
1
1063.00028.00
CORD, SOUTH AFRICA , 6.5FT
29
1
1067.00001.00
CAPACITOR, 120VAC VERSION, 40uF, 450VAC, 50-60Hz
29
1
67005
CAPACITOR, 230VAC VERSION, 18uF, 450VAC, 50Hz (EXPORT VERSION ONLY)
29
1
1067.00005.00
CAPACITOR, 120VAC VERS., 80uF, 450VAC, 50-60Hz (JAPAN VERS.-2 REQD.)
30
1
1083.00025.00
WASHER, M8 SCREW SIZE, SPRING LOCK
31
1
1084.00018.00
NUT, HEX, M8 SCREW SIZE
32
1
1401.00022.00
WIRING DIAGRAM, UNIVERSAL, GR-1
33
1
1043.00036.00
TEMPLATE, SN LABEL, FETCO PRODUCTS
34
1
1046.00009.00
LABEL "GR PROGRAMMING"
35
1
1402.00010.00
ELECTRICAL HARNESS, GR 2
36
1
1046.00035.00
LABEL, WARNING "TO REDUCE RISK OF ELECTRIC SHOCK OR FIRE"

Go to fetco.com for the latest versions of all information Page 8P185 MARCH 2019
Figure 2 – GR-2.2 & GR-2.3

Go to fetco.com for the latest versions of all information Page 9P185 MARCH 2019
Parts List – Figure 2
Ref.
#
PART NO
DESCRIPTION
1
1
1111.00011.00
BODY, WELDMENT, GR-2
2
4
1029.00009.00
FASTENER, 9/32" HEAD DIA X .165" LG, PUSH IN
3
4
1073.00006.00
FOOT, GRINDER
4
8
1083.00019.00
WASHER, #10 SCREW SIZE, SPRING LOCK
5
4
1082.00031.00
SCREW, #10-32 X 5/8", PAN HD PHIL, MACHINE
6
1
1083.00011.00
WASHER, #8 SCREW SIZE, INTERNAL TOOTH LOCK
7
1
1084.00006.00
NUT, 8-32 18-8 HEX MACHINE SCREW
8
1
1021.00005.00
ROD, VIBRATION DAMPENING, GR-2
9
1
1082.00018.00
SCREW, TRUSS HD. PHIL. SM, #8 X 1/2 LG.
10
2
1102.00034.00
SOLENOID ASSEMBLY, 120VAC, GR-2
10
2
1102.00305.00
ASSEMBLY, SOLENOID, 100VAC (JAPAN VERSION ONLY)
11
4
1083.00026.00
WASHER, #10 SCREW SIZE, FLAT
12
4
1084.00014.00
NUT, HEX, #10-32, MACHINE SCREW
13
1
1067.00001.00
CAPACITOR, 120VAC VERSION, 40uF, 450VAC, 50-60Hz
13
1
67005
CAPACITOR, 230VAC VERSION, 18uF, 450VAC, 50Hz (EXPORT VERSION ONLY)
13
1
1067.00005.00
CAPACITOR, 120VAC VERSION, 80uF, 450VAC, 50-60Hz (JAPAN VERS.-2 REQD.)
14
1
1083.00025.00
WASHER, M8 SCREW SIZE, SPRING LOCK
15
1
1084.00018.00
NUT, HEX, M8 SCREW SIZE
16
1
1065.00003.00
CONNECTOR, POWER INLET, 15A, 250VAC
17
1
1108.00028.00
ASSY, BOARD CONTROL AND SOFTWARE,GR-1/2 100-120VAC
17
1108.00029.00
CONTROL BOARD REPLACEMENT KIT, 220VAC (EXPORT ONLY)
18
1
1050.00003.00
SOFTWARE, GRINDERS, V 1.2
19
4
1029.00006.00
NUT, FINGER, #4-40 NYLON
20
1
1402.00010.00
ELECTRICAL HARNESS, GR 2
21
2
1023.00044.00
MANIFOLD, GR-2
22
4
1083.00010.00
WASHER, #10 SCREW W/NEOPRENE-BONDED SEAL
23
4
1082.00017.00
SCREW, TRUSS HD. PHIL. MACHINE, # 6-32 X 1/2 LG.
24
1
1045.00009.00
OVERLAY, GR-2.2
24
1
1045.00007.00
OVERLAY, GR-2.3
25
4 or 6
1058.00007.00
SWITCH, START ROCKER, MOMENTARY, 250VAC
26
1
1058.00006.00
SWITCH, POWER ROCKER RED, ILLUMINATED 120V
27
2
1102.00033.00
HOPPER, ASSEMBLY, GRF-2.3
28
1
1102.00038.00
GRINDING MOTOR AND PLATE ASSY, 120V/60Hz
28
1
1102.00185.00
GRINDING MOTOR AND PLATE ASSY, 230V/50Hz
29
2
1083.00022.00
WASHER, 3/8" SCREW SIZE, FLAT
30
2
1083.00020.00
WASHER, 3/8 SCREW SIZE, SPRING LOCK
31
2
1082.00032.00
SCREW, 3/8"-16 X 3/4" LG, HEX HEAD CAP
32
1
1401.00007.00
WIRING DIAGRAM, UNIVERSAL, GR-2
33
1
1046.00009.00
LABEL "GR PROGRAMMING"
34
1
1112.00023.00
BASE COVER WELDMENT, GR/GRF
35
10
1082.00033.00
SCREW, PAN HD PHIL. MACH., W/DUAL ACT WASHER, #6-32x3/8LG.
36
1
1102.00023.00
COVER, GRINDER SERVICE ASSEMBLY, W/O RAILS
37
1
1001.00035.00
COVER, REAR, GR-2
38
1
1023.00041.00
HOLDER, BREW BASKET, GR-1 AND GR-2
39
1
1063.00003.00
CORD, POWER, AMERICAN, 120VAC, 13A, 6FT LG.
39
1
1063.00027.00
CORD, ENGLAND, 6.5FT
39
1
1063.00026.00
CORD, AUSTRALIAN, 6.5FT
39
1
1063.00025.00
CORD, EUROPEAN, 6.5FT
39
1
1063.00028.00
CORD, SOUTH AFRICA , 6.5FT
40
1
1043.00036.00
LABEL, 4" X 3" SERIAL NUMBER, GR-2.3
41
1
1046.00035.00
LABEL, WARNING "TO REDUCE RISK OF ELECTRIC SHOCK OR FIRE"

Go to fetco.com for the latest versions of all information Page 10 P185 MARCH 2019
Figure 3 – GR-1 & GR-2 Motor Assy.
Parts List – Figure 3
Ref.
#
PART NO
DESCRIPTION
1
1
1102.00029.00
GRINDING CHAMBER ASSEMBLY WITH 120VAC/60Hz MOTOR
2
1
1112.00035.00
GUIDE COFFEE FLOW, WELDMENT, GR
3
1
1083.00016.00
WASHER, #8 SCREW SIZE, FLAT
4
1
1084.00015.00
LOCKNUT, #8-32 SCREW SIZE, HEX THIN NYLON INSERT
5
1
1014.00005.00
DISC, GRINDING, 64 MM DIA
6
1
1085.00002.00
SPRING, GRINDER AUGER, 6 MM PITCH
7
3
1082.00026.00
SCREW, M4 X 10, PAN HEAD, SLOTTED
8
1
1102.00032.00
FRONT GRINDING DISC ASSEMBLY, GR
9
1
1013.00021.00
WASHER, GR1/GR2 COUNTERSUNK
10
1
1082.00027.00
SCREW, M5 X 10, FLAT HEAD, SLOTTED
11
1
1102.00036.00
SHAFT AND BEARING ASSEMBLY
12
1
1015.00005.00
COVER , GRINDING CHAMBER HSG, MACHINED
13
1
1084.00016.00
NUT, M16x1 JAM
14
4
1083.00017.00
WASHER, M5, SERRATED BELLEVILLE
15
4
1082.00028.00
SCREW, M5 X 12, HEX HEAD
16
4
1083.00023.00
WASHER, 1/4" SCREW SIZE, FLAT
17
4
1083.00021.00
WASHER, 1/4" SCREW SIZE, SPRING LOCK
18
4
1084.00017.00
NUT, HEX, 1/4"-20
19
1
1102.00035.00
PLATE ASSEMBLY, GRINDER MOTOR
20
1
1102.00037.00
COMPLETE GRINDING MOTOR ASSEMBLY, 120VAC/60Hz
20
1
1000.00078.00
COMPLETE GRINDING MOTOR ASSEMBLY, 230VAC/50Hz
21
1
1087.00003.00
PIN, SLOTTED SPRING, M3x14mm
Drawing No. 1102.00037.00 & 1102.00038.00