Pump Solutions Group PZiG Series - Manual (Page 34)

33
Tr
oub
leshooting
Troubleshooting
¡Do not operate this pump with wet hands. Doing so might result in electric shock.
¡Make sure to turn OFF the power before disassembling the liquid end and check that the power is not applied to the
pump. Do not start the disassembly only by stopping the pump with a key. Attach a "Work In Progress" label to the
power switch so that the power cannot be turned ON during repair works.
¡When handling liquid-end sections, be sure to wear protective coverings (rubber gloves, mask, protective goggles,
chemical-resistant overalls, etc.) appropriate for the chemicals be using used.
¡Before maintaining or repairing the pump, be sure to release the discharge-side pressure, drain the chemicals from
liquid-end sections, and wash the pump.
! WARNING
¡We recommend using the flow indicator as a means of detecting defective discharge.
IMPORTANT
During Pump Operation
Details of Trouble Cause Remedy
Pump operates
though chemi-
cals are not
transferred. Air enters the
pump. (1) Gas is being generated due to the
nature of the chemicals.
(2) Chemical leaks for joints, seals, etc.
(3) Empty chemical tank
(1) Dilute the chemicals.
(2) Re-tighten.
(3) Replenish chemicals and release air.
Liquid does not
rise up. (1) Clogged strainer
(2) Gas lock is occurring on the pump.
(3) The pump's stroke length is too short.
(4) Wrong valve fitting direction
(1) Wash the strainer and tank.
(2) Release air.
(3) Set the stroke length to 100%,
release air, and set the stroke length.
(4) Disassemble and re-assemble.
Liquid leakage (1) Pressure buildup caused by dirt clogging
(2) Damage caused by fatigue on hose,
diaphragm or other parts
(3) Hose nut insufficiently tightened
(1) Disassemble and clean.
(2) Replace with new parts.
(3) Re-tighten.
Pump does not
operate. Pilot lamp does
not blink. (1) Insufficient power supply and voltage
(2) Defective pump wiring
(3) Broken power cable
(4) Switch of mains power supply OFF
(5) Breaker tripped
(6) Built-in protective fuse blown
(1) Check the power supply and voltage,
and connect to the correct power supply.
(2) Inspect the wiring and correct as required.
(3) Correct or replace.
(4) Turn the switch ON.
(5) Check the cause, and restore the breaker.
(6) Ask the manufacturer for repair.
The discharge volume greatly
differs from the setting value
when specifying the discharge
volume in the manual mode. (1) The maximum discharge volume set-
ting is wrong.
(2) The piping conditions differ from the actu-
ally measured values that are used for
setting the maximum discharge volume.
(3) The stroke length when the maximum
value was set differs.
(1) Set a correct maximum value.
(2) Measure again under actual conditions,
and set the maximum discharge volume.
(3) Set to the required stroke length,
measure the discharge volume and
set the maximum discharge volume.
Pressure does
not increase. (1) Lower power voltage or not a com-
mercial power supply
(1) Connect to the correct power supply.
(1) Current leakage breaker is actuated.
(2) Defective magnet switch Solenoid does
not work. (1) Ask the manufacturer for repair.
(2) Replace the magnet switch.
Liquid is not
discharged. (1) Liquid viscosity too high
(2) Large pressure loss (piping resis-
tance)
(1) Lower the liquid's viscosity.
(2) Install a damper or use larger piping
on the discharge side.
Keys cannot be operated. (1) The key lock is active. (1) Cancel the key lock.
05-45_PZiG Series(2)English 06.8.4 9:39 AM y [ W 33