Magnum Venus Plastech APS E-FIT-F-CMB-APS-6 - Manual (Page 13)

BASIC TROUBLE SHOOTING GUIDE FOR CHOPPERS
Problem
Cutter not shutting off.
Cutter does not come on.
Glass binds up.
Improper chop length.
Cutter running too slow.
Cutter not running.
Possible Cause(s)
Stuck chopper poppet valve
Worn poppet valve seat.
Broken poppet valve spring.
Sticking resin needle prohibiting
actuation of poppet valve
Bent trigger
Stuck poppet valve
Obstruction in roving path.
Improper anvil sleeve to bearing tension.
Improper cutter head to anvil sleeve
tension.
Resin on roving.
Worn cutter wheel.
Open slots in cutter wheel.
Worn or broken blades.
Worn or misadjusted anvil sleeve.
Worn blades
Tension on anvil sleeve to bearing or
cutter head too tight.
Low air volume.
Worn air motor
“Dry” air motor
Chopper poppet in gun sticking.
Chopper poppet stuck in closed position.
Air motor “locked up”.
Recommended Solution
Replace and lubricate O-ring on chopper
poppet valve in gun.
Replace
Replace
Replace packings
Replace
Clean, replace and lubricate seals.
Trace roving path from source to
chopper for any obstructions and fix as
necessary.
Adjust as necessary.
Adjust as necessary.
Clean as necessary, keep roving away
from resin and overspray.
Replace
Be sure all blade slots are filled with a
retainer bar and spacer (whether a blade
is inserted or not).
Replace
Replace or adjust properly
Replace blades
Adjust as necessary.
Inspect hoses for kinks or cuts.
Inspect primary air line to system for
proper diameter and volume. Call MVP
to discuss.
Replace or rebuild.
Oil air motor daily with 3-5 drops of MVP
AMO air motor oil.
Remove, replace O-rings and lubricate.
(Check for broken poppet spring and
replace if necessary.)
Clean, replace O-rings if necessary and
lubricate.
Rebuild or replace air motor.