7. MAINTENANCE
If after reviewing the trouble-shooting guide you find that you need to replace the membrane,
please follow the steps below: (We strongly recommend seeking the assistance of an expert)
• Unscrew the tank valve cover
8
, and push the boiler valve to discharge the air pressure to
zero.
• Unscrew the flexible hose from the tank flange.
• Use a wrench to remove the 6 bolts from flange.
• Remove the flange.
• Remove the defective membrane, and replace it with a new one.
• Remount the flange and the flexible hose in reverse order.
• Inflate the tank to 1.8 Bar via the boiler valve.
• Screw the tank valve cover back on.
How to change the membrane
• Place the 2 connectors caps
2
back on the connectors to prevent dust from entering the
pump.
• If there is a risk of frost, the pump must be drained complete.
• After long periods of stoppage make sure the rotor turns correctly by briefly switching the
pump on and off.
• If the pump is not going to be used for a long time or has to be removed for the winter
months, rinse it out with water, empty it completely and allow it to dry.
Storage
128
EN
20151214 SPECIFICATIONS 1300 WT 50 SM5I-3.indd 128 14/12/15 12:19
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