Becker VARIAIR DIRECT SCREW 1500, Руководство по эксплуатации

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100 08/2017
Page: 25
Maintenance of the filter cartridge
The filter cartridge of the suction filter (Part-No.: 709580) must be exchanged when pressure difference values
are too high. Otherwise the system will overheat. The soiling of the filter cartridge depends on the individual
conditions under which the unit is working. We, as the manufacturer suggest to check the degree of soiling
within the filter cartridge on a 14-day-basis.
Suction filter
Dismantling
:
Unscrew knurled nut from the filter cover and loosen the tension ring.Push the tension ring back. Lift
the filter cap at the front and turn off the wing nut of the filter cartridge.
Mounting: If possible this should be done by two people. Place the filter cap exactly onto the O-ring. Make
sure the spacing of the flanging between the filter cap and the filter housing is constant. Push the tension
ring back into its original position an tighten it: Check the tension ring for correct position and tight fit.
When mounting the filter cap attention must be paid that it is firmly locked in its position. Otherwise the
filter cap may blow off uncontrollably should the unit malfunction. We, as the manufacturer recommend to
operate the unit only with the closed doors.
Tension ring
Tension ring Filter cap
O-ring Wing nut Filter housing flanging
Knurled nut