45
MAINTENANCE
Troubleshooting
Machine running back-
wards
Impeller tips worn
Dull cutting edges in
cutting head
Product overfeeding
and/or not discharging
rapidly enough
Worn impeller
Dull cutting edges in
cutting head
Foreign material in
product.
Incorrect cutting head
being used for applica-
tion
Sudden surges in
product feed or abrupt,
intermittent feeding
Rewire correctly. Impeller must turn clockwise
when viewed through product feed opening.
See “Electrical Power”, page 25.
Replace or send impeller to Urschel Laborato-
ries for repair. See “Inspection”, page 37.
Sharpen or replace cutting head. See
“Resharpening Cutting Heads”, pages 38–39
and “Cutting Heads”, pages 54–57.
Clean cutting head thoroughly. Reduce feed
rate. Get product away from discharge end
more rapidly. See “Feeding Method”, page
29.
Send impeller to Urschel Laboratories for
repair or replace. See “Inspection”, page 37.
Sharpen or replace cutting head. See
“Resharpening Cutting Heads”, pages 38–39
and “Cutting Heads”, pages 54–57.
Explore methods of removing foreign material
from product before it enters the Comitrol
processor.
Use correct cutting head. See “Cutting
Heads”, pages 21 and 54–57.
Regulate product flow. See “Feeding
Method”, page 29.
Poor Quality,
Ragged or
Oversize
Product
Burned
Product
Excessive
Reduction
Head and/or
Impeller
Damage
PROBLEM CAUSE CORRECTION
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