Ransburg Evolver 303 Dual Purge Solvent Robotic Applicator A12374-XXX - Manual (Page 56)

51
Evolver 303 Dual Purge Robotic Atomizers - Maintenance
TROUBLESHOOTING GUIDE (Cont.)
General Problem Possible Causes Corrective Action
1. Insufficient back pressure
to fluid regulator
2. Fluid regulator does not
control flow (system)
3. Diaphragm stretched from
excessive air pressure
4. Ruptured diaphragm
5. Inconsistent air pilot supply
1. Ruptured Diaphragm
1. Damaged o-ring(s) on outer
diameter of valve body
2. Damaged or worn needle
seals inside valve assembly
1. Diaphragm (screws) loose
2. Ruptured diaphragm
1. High current draw
2. Loss of low voltage cable
connection between robot
and mounting plates.
3. Improper limiting current
and voltage settings.
4. Applicator grounding out
(usually indicated by high
current draw or by MicroPak
over-current fault light)
1. Replace fluid tube with the next smaller inner
diameter size.
2. Disassemble fluid regulator and inspect for
failed components (system).
3. Rebuild regulator.
4. Rebuild regulator.
5. Check air source.
1. Replace regulator diaphragm.
1. Replace o-ring.
2. Inspect tubing coil for scratches and replace if
damaged.
1. Replace o-ring(s).
2. Replace valve assembly.
1. a. Paint resistivity to be .1M Ω to ∞.
b. Replace coiled fluid line.
2. Remove applicator and inspect low voltage
connections on both plates. Verify alignment
marks between connectors and plates and
verify that connector face is flush with plate.
Verify that set screws are secur, but not too
tight, as this will prevent the spring loaded pins
on the robot plate from extending and making
contact.
3. To readjust settings, refer to "MicroPak"
operating manual.
4 a. Clean atomizer externally with non-polar sol-
vent.
b. Check the atomizer for internal fluid leaks.
c. Check for fluid leaks at quick disconnect
mounting (between bell plate and robot
plate).
d. Check for internal arcing (usually indicated
by internal sparking sounds).
e. Make sure cascade low voltage connection
is properly shielded.
Uncontrollable Fluid
Flow
Paint Sputtering
Fluid Leakage
Around Fluid Valve
Paint Leakage
(Regulator)
Low or No High Volt-
age
(Continued On Next Page)
AA-08-01.1