Pump Solutions Group Neptune Solenoid-driven Diaphragm Metering Pump ARPZ-31_61_12 - Manual (Page 38)

37
Tr
oub
leshooting
Troubleshooting
WARNING !
• Ensure that nobody other than the operators and control personnel will operate the pump.
• Take steps to ensure that the power will not be turned on during the course of work. Hang a sign on the
power switch indicating that work is in progress.
• Do not operate the pump with wet hands. Doing so may result in electric shocks.
• When trouble has occurred (such as when smoke appears or there is a smell of burning), shut down the
pump’s operation immediately, and contact your vender or a TACMINA representative. Otherwise, a fire,
electric shocks and/or malfunctions may result.
• Do not attempt to disassemble the pump body or the circuit parts.
• During the air releasing, chemical may suddenly gush out from the pipes and other parts. Lead the end
of the relief/air-release hose bank to the tank or other container, and secure it so that it will not become
disconnected.
• A situation in which the valve inside the pipe at the discharge side of the pump is shut off or becomes
blocked with foreign matter is dangerous in that it may lead to an excessive rise in pressure that will
exceed the pump’s specification range, causing liquid to gush out, the pipe to be damaged and the
pump itself to malfunction. Prior to operating the pump, check the valves and pipes, etc.
! CAUTION
• When working on the liquid-end parts of the pump, wear protective gear suited to the chemical
concerned (such as rubber gloves, a mask, protective goggles and work overalls that are resistant to
chemical).
• Before attempting to maintain or repair the pump, release the pressure in the discharge pipe, discharge
the liquid in the pump head, and clean the liquid-end parts.
• The vibration of the pump may cause the hoses/tubes to become loose and disconnected. Before
starting operation, secure the hoses/tubes and check their tightness.
NOTE
• Use of a flow indicator is recommended as a method to detect discharge trouble.
✽ Refer to “Spare parts & options” on page 53.
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