MGE UPS Systems SAM 12 - Monthly Maintenance; Three Monthly Maintenance

SA 12, SA 14, SA 15 and SA 16 – UK
Operation and Maintenance Manual
Manual 117 Issue 15 Page 13 of 24
4.2 Monthly Maintenance
• Carry out the daily maintenance procedure.
• Check the vacuum and the flow at the collection container top.
• With the collection container empty and the vacuum control valve set to maximum,
switch on the unit and read the indicated vacuum on the gauge. Occlude the suction
inlet (Patient connection) on the collection container top and note the time taken for
the gauge to indicate an increase to 450mm Hg (60 kPa) vacuum. This time should
not exceed 10 seconds.
• The gauge should continue to rise and stabilise to indicate the maximum vacuum
available, and this should be not less than 590mm Hg (78.7 kPa).
• Replace the exhaust filters in the exhaust outlet housing located on the side of the
casing and marked ‘Exhaust Outlet’.
4.3 Three Monthly Maintenance
• Carry out the monthly procedure. Poor performance of the unit would indicate the
internal pump requires maintenance
Warning! Always electrically isolate the SA unit from the mains power supply before
carrying out any cleaning, maintenance or repairs. Electrical isolation of the
SA unit is by removal of the mains power cable from the mains power supply.
• Remove the back cover.
• Check the internal and external tubing for ageing or wear. Replace with equivalent
tubing where necessary. Tubing to gauge ∅5mm I/D, wall thickness min 2mm, all
other tubing on the SA unit ∅6mm I/D, wall thickness min 3mm.
Replace the hydrophobic filter. Details in section 0