User's Manual

Troubleshooting
42 3A2347T
Vacuum trans-
fer not working
Air to vacuum assem-
bly missing.
Verify the vacuum transfer system air pressure is 40-80 psi (60 psi rec-
ommended)
Air at system air gauge
but not to air to shaker.
Check that air line is connected or not pinched.
Air is at shaker but
there is no feed.
Plugged shaker unit, remove from system and remove plug.
Adhesive pel-
lets in storage
bin not cover-
ing shaker
head.
Shaker unit not vibrat-
ing.
Verify shaker is vibrating during material loading. If not, the ball in the
shaker assembly is stuck. Remove shaker housing and separate to
clean raceway and ball inside.
Materials are blocking
in the hopper. Some
adhesive materials are
prone to blocking. High
ambient temperature
and high humidity can
increase the likelihood
of blocking.
Some materials may require agitation periodically to breakup bridging.
Purchase and install 30 Gallon Vibrating Hopper, 24R136. See
page 92.
Fill Solenoid
Error
Failure of the fill sole-
noid or fill solenoid wir-
ing.
Verify wiring between J13 and the refill solenoid is not damaged.
Restart system. If the error persists after attempting another refill and
unit is needed immediately for production, place system into the man-
ual refill mode. See Manual Refill on page 27.
Level Sensor
Error
Failure of the level sen-
sor (20) or sensor
cable 16T108 (J14 to
level sensor (20)).
Check sensor cable J14 to level sensor (20).
Enable Diagnostic screen on ADM then check sensor readings on the
Diagnostic screen. Sensor readings should be about 3V if melter is
completely empty (melter passage holes are visible). The normal oper-
ating range is 2.1 to 2.8V. If the sensor is reading more than 2.75V the
system should be requesting additional material.
Restart system. If the error persists after attempting another refill and
unit is needed immediately for production, place system into the man-
ual refill mode. See Manual Refill on page 27.
The InvisiPac
system expels
adhesive pel-
lets dust when
refilling.
Some adhesives are
very dusty due to the
anti-blocking agents
used or because the
adhesive manufactur-
ing process has cre-
ated small adhesive
shavings. Feed inlet
cap filter may have
become clogged.
Replace Funnel Filter, see page 35.
NOTE: Feed cap filter maintenance should be performed at regular
service intervals. It is recommended that the feed cap filter be serviced
at a minimum of every 1200 lb dispensed, however with some adhe-
sives the frequency may need to be increased significantly to maintain
desired system cleanliness.
The InvisiPac
system will not
stall, pump
continues to
move even if
the guns are
all closed.
Fluid leak. Verify that no external leakage is present.
Inspect and test the pressure relief valve.
Perform Flush Pressure Relief Valve, page 49.
If system is still unable to stall, the pump or pressure relief valve may
need to be repaired.
Problem Cause Solution