Sterlco TG 1200 Series Thermoform Granulators - Manual (Page 27)

T-Series Thermoforming Granulators Troubleshooting 27 of 37
6-3 Processing Faults
Problem Possible Cause Possible Remedy
Overfeeding Reduce feed rate
Partial or complete screen
blockage Remove screen, clear and
inspect for damage
Insufficient tension on v-belt
drive causing belt slip and
burning Check tension of the belt and
adjust as necessary
Check that the motor slide
base screws are secure
Badly blunted or damaged
knives Fit re-sharpened or new
knives as required
Knife setting too wide Check clearances given and
adjust as required
Installation fault; motor
running in reverse direction Check with direction arrow
and re-fit electrical
connections to give the
correct direction
Stalling
Safety switch cut out where
fitted Tighten safety switch setting
screw
Check all possible causes
under “stalling” Remedy as shown above
Screen size too small Increase screen size
When granulating rubber,
insufficient talc causes
freshly cut surfaces to re-
adhere Increase talc percentage rate
of in-feed
Material overheating
Blockage in aiveyor Check direction of fan
rotation, check venturi and
line or chute for blockage