12
850 and 950 Series
North America Only
3. Inspect the pallets for any damage or buildup that
may aect its sealing characteristics or its ability
to move properly inside the valve. If necessary,
gently clean the pallet and seal with a suitable
solvent and nonabrasive cloth.
4. Clear away any buildup on the weights or on
the housing.
5. Inspect the valve seats installed in the unit. The
sealing surfaces should be smooth and free of
nicks or buildup. Check the guides for anything
that may keep the valve pallet from moving
properly inside the valve. If necessary, gently
clean the seats with a suitable solvent and
nonabrasive cloth.
6. If the valve has a lid, clean any buildup that may
exist in or around the guide hole located in the
center of the part.
7. If the valve is tted with a screen of some type,
clear away any blockage that may impede
proper ow.
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