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

Страница: 20 / 60

0
GB
3.4.4 Maintenance of Air Valve
. To evaluate air valve components, remove the four cap screws (), washers, (5, 0) and nuts (9) from the
air valve body (7). The valve plate (5) and shuttle (6) may be inspected by removing them from their location in
the slot in the back of the air valve. Inspect for scratches or surface irregularities. Replace if necessary. Remove
the plug () at the bottom of the air valve, point the bottom of the air valve safely away from people, direct
compressed air through one of the lower holes in the back of the air valve body and the plug will shoot out. Next
push the air valve spool () out of the air valve body. Gently reach in and pull lip seals (43) out of inside bore of
the air valve body. Check for cracks, splitting or scratches. Clean components if replacement is not necessary.
Inspect plug o-ring (44) for any damage and replace if necessary and reinsert in o-ring groove.
Caution!
Make sure that the open sides of the two lip seals (43) face each other when reassembling air valve. Lube all
components with suggested maintenance grease as an aid in reassembly.
. Reinsert air valve spool () inside of air valve body (7). Place shuttle (6) on middle rib of air valve spool ()
through the square slot in back of air valve (7). If using original valve plate (5) lubricate side of plate that was
facing the shuttle (6) (or if new valve plate is used lubricate the lapped and polished side of plate) and place the
lubricated side next to the shuttle in the slot. Press the valve plug () into air valve body, chamfered end first.
3. Check the gaskets (3,4) are not cracked. If damaged replace.
4 After gaskets (3,4) are pressed back into position align air valve onto intermedaite and reinsert the four cap
screws () with lock washer (5) and flat washers (0). Apply 7 Nm of torque to fasteners.
Caution:
/" double diaphragm pumps (non-metallic models only) are supplied in addition with a dual manifold capability.
This makes it possible to pump two different fluids at the same time but seperately. Manifold dual suction port and
single discharge port enable the pump to mix two different fluids.
Maintenance Model 1/2", Band Clamp Version