User's Manual

Troubleshootin
g
Troubleshooting
NOTE: Check all possible remedies before disassembling the system.
System Troubleshooting
Problem
Cause Solution
Inadequate power supply.
See Techni
cal Data, page 59.
Power switch is off.
Turn switch on.
Main power is shut off.
Turn main
power switch on.
Exhaust
ed fluid supply.
Refill an
d reprime pump.
Clogged fluid outlet line, valves,
etc.
Clear.
Unit will not operate.
Fluid d
ried on piston rod.
Disass
emble and clean pump.
See pum
p manual. In future, stop
pump at
bottom of stroke.
Inadequate power supply.
See Technical Data, page 59.
Exhausted fluid supply. Refill and reprime pump.
Clog
ged fluid outlet line, valves,
etc.
Clea
r.
Pump output low on both strokes.
Worn piston packings.
Replace. See pump manual.
Hel
d open or worn dosing valves.
Check and repair. See valve
manual.
Pum
p output low on only one
st
roke.
Worn piston packing.
Re
place. See pump manual.
No output. Improperly installed dosing valves.
Check solenoid connections to
valves. See pump manual.
Exhausted fluid supply. Refill and reprime pump.
Held open or worn dosing valves.
Check and repair. See pump
manual.
P
ump operates erratically.
Worn piston packing.
Replace. See pump manual.
3A2800B
11