ProMinent Beta BT4a - Change Diaphragm

ProMinent
®
Page 24
8 Maintenance
Maintenance intervals • Every quarter, when subject to normal usage (continuous operation - approx. 30 %).
• Shorter intervals when subject to heavier usage (e.g. continuous operation).
Maintenance actions Standard liquid ends:
왘 Check the diaphragm for damage (see section 9).
왘 Check chemical seepage at vent hole.
왘 Check that the discharge tubing is connected firmly to the liquid end.
왘 Check that discharge and suction valves are firmly fixed.
왘 Check that the liquid end is generally watertight (especially vent hole! See fig. 13).
왘 Check for correct feed: run the Beta
®
run for a short period (press both arrow keys together).
왘 Check electrical connections for wear.
왘 Check that liquid end screws are fastened tightly (on coarse/fine bleeding versions, first
remove knob and cover.
Screw fastening torque: 4.5 to 5 Nm
NOTE
• For PP liquid end, check fastening torque every quarter!
Additionally, for liquid ends with coarse/fine bleed function and SEK type:
• Check that the bypass tubing is connected firmly to the liquid end
• Check that the bleed valve is firmly fixed in place
• Examine the discharge and bypass tubing for kinks
• Check that the coarse/fine bleed function is working correctly
Maintenance / Repairs
9 Repairs
NOTE
Repair work that may be carried out by authorised personnel only, or on factory premises:
• Replacement of damaged mains cables.
• Replacement of fuses and electronic controller.
Please contact your nearest ProMinent branch or representative!
Only send the equipment for repair or maintenance in a cleaned condition and with the liquid end
flushed. However, should any safety precautions be necessary even after careful draining and
cleaning of the equipment, the required information must be listed in the Safety Declaration!
The Safety Declaration forms part of the inspection/repair contract.
Maintenance or repair work will only be carried out if a Safety Declaration - correctly and fully
completed by an authorised and qualified member of the Operator's staff - is available.
A copy of the form is included in the “General operating instructions for ProMinent soleniod
dosing pumps” or can be downloaded at www.prominent.com.
Fig. 13
Vent hole
BA_BE_021_07_08_GB2.p65 17.07.2008, 14:35 Uhr24