Ransburg RMA-560 Single_Dual Purge Direct A13364 - Manual (Page 73)

Damaged fiber optic cable between
robot plate and control panel
Connection at robot or bell plate
is loose
Fiber optic transmitter failure
Bad transceiver module
Excessive vibration
Turbine is not rotating
Fluid valve does not actuate
Clogged fluid tube
Bad transceiver module
Fluid valve open
Fluid valve seat damaged or worn
Insufficient back pressure to fluid
regulator
Fluid regulator does not control
flow (system)
Atomizer mounting nut is loose
O-ring is missing.
O-ring is damaged
TROUBLESHOOTING GUIDE
(Cont.)
General Problem Possible Cause Solution
Speed Feedback
Fault
No Fluid Flow
Continuous Fluid
Flow
Uncontrollable
Fluid Flow
Fluid and/or Air
Leakage Between
the Robot and Bell
Manifold Plates
Repair or replace the fiber optic cable.
Reinstall cable and tighten locking set
screw.
Replace fiber optic transmitter.
Replace transceiver module.
a. Check bell cup for damage.
b. Check bell cup for excessive paint
buildup.
c. Ensure bell cup is tightened properly.
d. Check cup and shaft tapers for clean-
liness.
Verify rotation of turbine (the paint valve
air pilot must be interlocked with the tur-
bine speed feed back signal to ensure that
paint does not flow into the air bearing).
a. Verify that air pilot signal is present.
b. Fluid valve air pilot signal is too low.
Increase air pressure to 70 psig (482.6
kPa) minimum.
c. Replace fluid valve.
Remove and inspect fluid tube.
Replace transceiver module.
a. Remove air pilot signal.
b. If still open, replace fluid valve.
Inspect and retighten
Replace fluid tube with the next smaller
inner diameter size.
Disassemble fluid regulator and inspect
for paint and solvent.
Tighten mounting ring.
Install O-ring.
Visually inspect for damage and replace.
RMA-560 Single/Dual Purge Direct Charge - Maintenance
Ransburg
LN-9278-13 70