ACS Marathon MV1012, Operation And Installation Manual

Page: 43 / 49

ACS GROUP Marathon Series Beside-the-Press Granulators Page 43
6 Troubleshooting
6-1 Troubleshooting Marathon Granulators
Problem Possible cause Solution
No granulate.
Feedstock may be hung up
inside the hopper. Shut the machine down and
check.
Screens are plugged. Clean the screens.
Fan is too small.
Replace with larger unit or
larger fan wheel.
Fan line may be clogged. Clean as needed.
Stringy granulate.
Knife gap is too large.
Adjust knives to proper gap
specification.
Knives are dull.
Sharpen or replace knives
and re-install.
Overloading of feedstock.
Reduce the amount of
feedstock put into the
machine per unit of time.
Fines.
Knives are dull.
Sharpen knives (refer to
Section 5-4 on Pages 34-37)
and re-install.
Plastic is clogging the
screens or transition
preventing proper fan
evacuation.
Shut the machine down and
clean.
Rotor speed is too fast. Change pulleys.
Screen size is too small.
Change to a screen with
larger holes.
Excessive power required;
blown fuses.
Overloading of the machine.
Reduce amount of feedstock
put into the machine per unit
of time.
Knives are dull.
Sharpen or replace knives
and re-install.
Knife gap is too large.
Adjust knives to proper gap
specification.
Clearance between the rotor
knives and screen is too
small. Check that the screen is
properly seated in the screen
chamber.