Troubleshooting
41
Table 5-1 Film Coater Troubleshooting (Continued)
Problem
Possible Cause
Corrective Action
4. No fluid flows from
nozzle when film coater
is triggered
Micro-adjustment cap fully closed Turn micro-adjustment cap
1/2
turn
counterclockwise.
Blocked nozzle orifice or
passageway in body, or tilt
mechanism contaminated with
fluid
Remove nozzle and tilt mechanism
and clean in appropriate solvent.
Use solvent and brush to clean
extension end and needle tip.
Replace O-rings if necessary. If fluid
still does not flow, disassemble film
coater and check passageways for
blockage. Rebuild film coater and
test.
Bad trigger solenoid valve
Depress solenoid valve manual
override button. If solenoid does not
actuate, check for 24 Vdc across the
two pins at the solenoid connector. If
voltage is present and valve still
does not actuate, replace it.
Trigger air pressure not present
or too low
Check air pressure at workcell
gauge. Remove trigger air line from
film coater and inspect for blockage.
If still no air pressure, problem may
be in robot controller. Contact your
Asymtek service representative.
Electrical problem at workcell
Contact your Asymtek service
representative.
Communications problem at
workcell
Contact your Asymtek service
representative.
5. Film coater rotation is
difficult
Extension and/or rotate
mechanism contaminated with
fluid leakage
Using appropriate solvent and clean,
soft cloth, wipe any obvious
contamination from extension.
Remove extension and soak in
solvent, if necessary. Execute rotate
command. If rotation is still difficult,
remove and clean rotate and tilt
mechanisms. Rebuild and test
extension.
Rotate air pressure not present
or too low
Check air pressure at workcell
gauge. Remove air line from rotate
cylinder and inspect for blockage. If
still no air flow, problem may be in
robot controller. Contact your
Asymtek service representative.
Z-head rotate mechanism not
operating properly
Use Easy Coat software to execute
rotate command. If robot seems to
bind, contact your Asymtek service
representative.