Argal PDA 100 Manuel de l'utilisateur - Page 13

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trical and chemical features of the plant being fed by the pump and of the pump itself):
•
verification of environmental conditions
•
verification of the condition of the liquid being pumped
•
inspections of the control/stop devices of the pump
•
inspections of the rotating parts of the dampener
•
trouble shooting

PERSONNEL RESPONSIBLE FOR REPAIRS

Interventions allowed to general operators under the supervision of qualified personnel:
•
stopping of the dampener
•
closing of the valve
•
emptying of pump body
•
disconnection of piping from fittings
•
removal of anchoring bolts
•
washing with water or suitable solvent as needed
Interventions by qualified personnel (technical capacities required: general knowledge of machining operations, awa-
reness of possible damage to parts due to abrasion or shocks during handling, know-how of required bolt and screw
tightening required on different materials such as plastics and metals, use of precision measuring instruments):
opening and closing of the dampener body
removal and replacement of rotating parts

WASTE DISPOSAL

Materials: separate plastic from metal parts. Dispose of by authorized companies.

TROUBLESHOOTING AND POSSIBLE CAUSES

DEFECT
The dampener
1
doesn't run and/or
it doesn't start
The dampener is
2
not performing at
its best
CAUSE
No air in the circuit
Insufficient air pressure
Insufficient air flow rate
Damaged control valve
Broken diaphragm
There is an air leak in the valve.
The product pipe is clogged and ob-
structed
The product being pumped is too
viscous
The air is dirty, full of condensate or oil
Air volume or pressure is insufficient
SUGGESTION
Check circuit, valves and connections
Adjust pressure on the relevant reducer
Check that piping and accessories have suitable passage
Check and replace
Check if any air comes out from the product delivery pipe.
If so, replace diaphragm.
Replace the air valve
Disassemble the product pipe and clean it
Check the air feed line.
Ensure that all the air control equipment has sufficient flow
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