12 309280
Troubleshooting
Ultra–Flo Assembly
Problem
Cause(s)
Solution(s)
Ultra–Flo does not run.
Over travel limit has been exceeded.
Reset per Robot Control Instruc-
tions.
Over/Under Pressure Limits have been
exceeded.
Feed pressure too high / low. Re-
adjust per Robot Control.
Ball screw failure.
Replace / rebuild ball screw.
Electric motor failure (no power to mo-
tor).
Check power to motor, refer to Ro-
bot Control Instructions.
Guide bearing failure.
Check guide rails and bearings for
wear. Repair or replace as neces-
sary.
Material inlet valve not functioning.
Refer to instruction manuals for
information.
Throat seals binding.
Replace throat seals.
Junction Box Panel
Problem
Cause(s)
Solution(s)
No power to solenoid valves,
proximity sensors, pressure
t
d
Voltage limits to circuit in junction box
exceeded.
Check surge suppressors SUP120
and replace if required.
transducer.
One or more fuse(s) blown.
Replace blown fuse(s). Check FU
117 and FU 120 on terminal block.
No power to junction box.
Check voltage to junction box from
Robot Controller. Refer to Robot
Instruction Manual.
Precision swirl motor doesn’t op-
erate.
No power to motor.
Refer to Precision Swirl Instruction
Manual Graco part number 310554.
No power to junction box from Robot
Controller.
Check voltage to Pin 16 24DC+,
Pin 19 24DC–.