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TROUBLESHOOTING
8
TROUBLESHOOTING
8.1
COMPONENT PUMPS
Problem
A.
The unit will not run.
B.
The unit will not build or
maintain pressure.
C.
Fluid leakage at the upper
end of the fluid section.
26
Cause
1.
The unit is not plugged in to a power source.
2.
Tripped breaker.
3.
The pressure is set too low (pressure control knob
set at minimum setting does not supply power to
unit).
4.
Faulty or loose wiring.
5.
Excessive motor temperature.
6.
ON/OFF switch is defective.
1.
The pressure control knob is not set properly.
2.
Material flows from the return hose when the
PRIME/SPRAY valve is in the SPRAY position.
3.
Air leak in material feed hoses.
4.
There is external fluid leak.
5.
There is an internal fluid section leak (packings are
worn and/or dirty, valve balls are worn).
6.
Worn valve seats
7.
Motor powers but fails to rotate
8.
Transfer pumps not supplying material.
1.
The upper packings are worn.
2.
The piston rod is worn.
Solution
1.
Plug the power cord into a grounded, 230V outlet.
2.
Reset the breaker.
3.
Turn the pressure control knob clockwise to
supply power to the unit and increase the
pressure setting.
4.
Inspect or take to an authorized service center.
5.
Allow motor to cool.
6.
Replace the ON/OFF switch.
1.
Turn the pressure control knob clockwise to
increase the pressure setting.
2.
Clean or replace the PRIME/SPRAY valve.
3.
Check the inlet valve / feed hose connection.
Tighten or wrap the threads with Teflon tape.
4.
Check for external leaks at all connections.
Tighten connections, if necessary.
5.
Clean the valves and service the fluid section
following the steps in section 9.5 and 9.6 in this
manual.
6.
Reverse or replace the valve seats following the
steps in section 9.5 and 9.6 in this manual.
7.
Take unit to a authorized service center.
8.
Check air supply and valves, or service the transfer
pumps.
1.
Repack the pump following the steps in section
9.5 and 9.6 in this manual.
2.
Replace the piston rod following the steps in
section 9.5 and 9.6 in this manual.
HELIX
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