Lntroduction; Troubleshooting - Nordson AD-31 Series Product Manual

Troubleshooting
6-1
Section
6
Troubleshooting
1.
lntroduction
WARNING: Allow only qualified personnelto perform the
following
tasks.
Observe and follow the safety instructions
in
this document and all
other related documentation.
This section provides answers to the most common problems that you
may encounter. lf
you cannot solve the problem with the answers
in
this
section, contact
your Nordson representative for help.
Problem Possible Cause
Corrective Action
No
adhesive flows from gun
module.
Adhesive levellow.
No input power
Applicator temperature setting too
low.
Hose temperatu
re
controller setting
too
low
System not at operating temperature
lnsufficient air pressure to piston
pump.
Applicator motor not operational.
Failed heater fuse.
Failed hose
Check level.
Add adhesive if needed
Connect power to applicator and
associated
equipment. Make sure
that i
all circuit breakers
are
ON.
Adjust
setting (refer to applicator product
manual).
Adjust setting (refer
to applicator product
manual).
Verify READY light
is
on and adhesive
or
sealant is melted. lf not, allow unit to
reach operating temperatu re.
Verify air pressure by flushing
filter (refer
to
applicator product manual).
Verify motor
operation (refer to
applicator product manual).
Disconnect and lockout electrical power
to
the applicator. Check fuse
and
replace if bad (refer to applicator product
manual).
Disconnect
and lockout electrical power
to the applicator. Check hose heater
cold resistance. against suggested
range given in hose product manual.
Replace hose if needed (refer to hose
product manual).
A6EN{7-[AD-31EX]-1 @ 1995
Nordson
Corporation
All ,ights reserued
42-72
lssued
10/95