www.ditting.com
S
ERVING THE
W
HOLE
-B
EAN
C
OFFEE
M
ARKET
S
INCE
1968 info@ditting.com
U.S. Distribution Center
8801-B Smiths Creek Rd, Wales, MI 48027
Tel 810-367-7125 Toll-Free 800-835-5992
Fax 810-367-7130
Serving the Whole-Bean
Coffee Market Since 1968
www.ditting.com
Ref. Models:
KF1800
S
ERVICE
T
IP
#LI1
GRINDER ADJUSTMENT / CALIBRATION
This simple procedure is for adjusting or calibrating the grinding discs. If you remove or change
the grinding discs, you will need to calibrate the grinder.
Initial visual inspection
:
Inspect the two wings on the rotating plate. If the wings are worn out at the outer edge, they
need to be replaced. The wings push the ground coffee out of the grinding chamber, and
when the output increases due to the sharpness of new discs, worn out wings will not be able
to push the grounds out of the chamber fast enough. This will result in the grinder re-grinding
the coffee particles that are trapped in the chamber, and you will lose your particle uniformity.
The condition of these wings is very critical for the performance of your grinder.
Calibration
:
6. Loosen the two screws holding the adjustment wheel onto the gear. (When it is loosened,
you will be able to continuously turn the wheel).
7. Turn the wheel and line up to #40 on the dial at the arrow. Tighten one screw on the
wheel.
8. Turn the grinder on, and slowly turn the wheel towards a smaller setting until you hear the
metal chirping of the discs just touching. If you do not hear metal chirping, repeat Steps 1
and 2 again.
9. Once you hear the discs touching, back the discs up 20-25 numbers on the dial.
10. Loosen the screw on the wheel and line up the #1 setting on the arrow.
11. Tighten the two screws.
12. Grind a test sample on the #1 setting.
Testing the grind
: Place a cup of beans in the hopper and grind on the #1 setting. The output
must be fine grind. If you need to grind a finer particle size, repeat Step 4 but back up only 15-
20 numbers.
Notes
: If on the #1 setting the coffee comes out slowly or in spurts, the discs are too close to
each other. Repeat Step 4, and back up 30-35 numbers.
Special Note
: If you installed new or resharpened discs, the teeth on the grinding discs are
very sharp and the grinder will grind faster than the coffee coming out of the spout. The
grinder could choke. Close the gate half way for the first 1,000 pounds of coffee until the discs
break in. You can slowly open the gate more until the flow matches the grinding speed. If you
do not regulate the flow of beans into the grinding chamber, some of the ground coffee will
spin around in the grinding chamber and get reground, and your output will be finer, non-
uniform particles.
Visit our website at
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for this and other service tips.