Lutz Size 1 - 1/4", Руководство по эксплуатации

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3.10.4 Maintenance of Air Valve
. To evaluate the air valve components, remove the eight cap screws (), washers (8, 0) from the air body
(7). Inspect the gasket (4), valve plate (5) and shuttle (6) for scratches, surface irregularities, and excessive
wear. Replace if necessary. Remove one of the end plugs () by inserting two of the cap screws () back into
one end of the air valve body, point the other end of the air valve body safely away from people, and apply
compressed air through one of the holes located on the gasket surface of the air valve body and the end plug
will shoot out. Remove the two cap screws and push the air valve spool () toward the remaining end plug
until both the end plug and air valve spool are removed being careful not to damage the machined bore in the
air valve body.
Gently reach in and pull the lip seal (43) and o-rings (44) out of inside bore of the air valve body. Check the air
valve spool, lip seal and o-rings for cracks, splitting, scratches, and wear. Replace and/or clean items as neces-
sary.
. Lubricate lip seals (43) and o-rings (44). Reinstall the o-rings and lip seals making sure that the lips of the seals
are facing each other.
Lubricate and insert the air valve spool () with the chamfered end entering the air valve body`s inside bore
through the end that has the spool image. Press the end plugs into position. Lubricate and reinstall the shuttle
valve (6) and valve plate (5). Place the gasket (4) with the words “This side up” facing the valve plate. Reas-
semble to the intermediate using cap screws () and washers (8, 0). Flat washers should be touching the
plastic air valve body. Tighten the screws to 4.5 Nm.
4. Repairs
When returning the device to the supplier it is compulsary to attach the decontamination certificate duly filled out
and signed by the operator (see service area www.lutz-pumpen.de).
Maintenance Model 3", Bolted Version