Lutz DMP 1, Руководство по эксплуатации

Страница: 26 / 32

D
Diaphragm maintenance
7. Remove outer diaphragm plates (item 7) by holding one diaphragm plate and twisting off
the other plate.
8. The diaphragm o-ring (item 8) is used only with Teflon diaphragms. Replace diaphragms
if ruptured or worn. Inspect inner diaphragm plates (item 10). If diaphragm rod needs
replacing go to step 10.
9. If no further inspection is necessary reassemble inner diaphragm plates and diaphragms
onto stud of outer diaphragm plates and screw each assembly into diaphragm rod. (Make
sure optional diaphragm o-ring is in position in the o-ring groove on either side of the
intermediate if using Teflon diaphragms. When positioning teflon diaphrgms make sure
that the concave side is facing the wet ends of pump.) Tighten outer diaphragm plates to
4.5 Nm. Reassemble pump according to steps 5 and 6.
Air valve and diaphragm rod maintenance
10. To remove the diaphragm rod twist the two rod halves apart by using a 7/16" wrench on
the flats at the end of each half. Puli each half out of the pump. Inspect for corrosion.
11. To inspect diaphragm rod lip seals (item 14) remove the two self tapping screws (item
12) from the retaining plates (item 13). Gently remove lip seals and inspect for damage.
To reassemble. Iubricate diaphragm rod lip seals (item 14) and insert into bore with the u-
cup portion facing inward. Note: Sinca the diaphragm rod passes through the spring clip
assembly (item 23), spring clip assembly must be removed prior to reinsertion of the
diaphragm rod into bore in intermediate.
12. To remove spring clip assembly firmly pull air valve plug (item 25) from pump.
13. Inspect spring clip assembly and shuttle (item 22) for damage. Surface of intermediate
around air ports and flat surface of shuttle must be smooth, no scratches or debris.
Replace or clean if necessary.
14. Attach retainer plate with flat surface toward lip seals. Do not overtighten self-tapping
screws.
15. To reinsert diaphragm rod halves, drop shuttle into intermediate over ports. Groove in
should be aligned vertically in pump and should face cutward. Insert spring side of spring
clip assembly into groove in shuttle. At this point the assembly is not affixed to anything.
Press down as shown below to insert long half of diaphragm rod (item 16) through
spring clip assembly and position under spring ends.
GB
26