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MAINTENANCE
For troubleshooting, testing methods, frequency of maintenance and detailed spare parts list, see Armstrong
literature or consult your local Representative.
EQUIPMENT UNDER PRESSURE
OPERATING TEMPERATURE > 90°C
MAKE SURE VENT IS COLD BEFORE HANDLING
I. Internals Maintenance:
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Remove the complete vent from the line;
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Unscrew bolts (9) and nuts (8) and remove the cap (1) with the operating mechanism fixed
on it;
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Unscrew the seat (3) and replace the complete Mechanism Less Float (3, 4, 5);
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Screw back the seat (3) and make sure that the lever (5) is aligned in the axis of the cap (1).
A clearance of 0,1 mm should be left in order to allow the lever (5) to move horizontally.
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Replace the float (6) if necessary;
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Replace gasket (7);
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Put the cap (1) back on the body (2) and screw bolts (9) and nuts (8).
Armstrong International, S.A., Parc Industriel des Hauts-Sarts, 4040 Herstal – Belgium Ph: +32.4.240.90.90 Fax: +32.4.248.13.61
IOM-1073-A
05/02
www.armstrong.be
Printed in Belgium
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