14
Maintenance
Troubleshooting
KNIFE MAINTENANCE
Omcan mincers/grinders are supplied with high quality, self-sharpening knives from Lumbeck & Wolter
(Germany). Anyhow, if grinding quality deteriorates appreciably, we recommend that you have a qualified
professional sharpen the knives and plates. Dull or improperly sharpened knives may leave the finished meat
product with an unsatisfactory texture. The knives should be replaced once the plate holding nut does not exert
sufficient pressure on them. Always pair and use the cutting elements together. We recommend that you clean
the steel knives with an anticorrosive product.
WARNING!
ALWAYS use extreme caution and wear protection (such as reinforced metal fiber gloves) when handling the
knives.
Problem
Possible Causes
Solution
The machine does not power on.
The machine is not connected to a
power source or the main switch is
in the OFF position.
Plug the machine in; turn the main
switch to the ON position.
No voltage in one or more phases. Check fuses, plugs, and switches.
The machine is connected to a
power source with incompatible
voltage.
Make sure that the machine’s
voltage and number of phases
match the power source.
The clixon/thermal protector has
blown.
Let the machine cool down for
several minutes and then restart it.
The main switch is defective.
Notify your distributor’s technical
service department and have them
replace the switch.
The worm turns in the wrong
direction.
The phases are reversed (applies
only to three-phase machines).
Switch 2 of the 3 phases in the
main plug.
Deterioration of grinding quality.
The cutting set is dull.
Sharpen or replace plates and
knives.
There is too much space in the
worm and/or the throat.
Replace the worm and/or the
throat.
Extreme wear noticed on the
cutting set.
The knife/plate-holding shaft is
worn.
Replace the shaft.
The plate-holding key pin is worn.
Replace the key pin.
