172-65613A-03 (DR8-3P/DR8-3EP/DR8-6P/DR8-6EP) 11 Jun 2020
16
Disassembling the Valve Guide Section
Snap Ring*
Slide Bearing*
Valve Guide
*
The slide bearing and snap ring cannot be
removed individually as they are
incorporated with the valve guide and
must be replaced as a set with the valve
guide.
Cleaning
After inspecting for scratches, erosion, etc. on the seating surface of the body
and valve, cracks or deterioration of the diaphragm and protective sheet, wear on
the valve guide, cracks or deterioration of the retainer gasket, and if there are no
abnormalities, clean and reassemble the parts.
The following parts will require cleaning before reassembly:
Diaphragm, protective sheet, valve, valve guide, retainer gasket, body,
lower diaphragm retainer, adapter (for sizes 15 to 20 mm (
1
/
2
to
3
/
4
in) only)
NOTE: Avoid using solvent to clean these parts as it may accelerate deterioration
of the diaphragm, protective sheet, and resin part of the valve guide and
retainer gasket.
