Dover WILDEN ACCUFLO A8, Инженерия, эксплуатация и обслуживание

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WILDEN PUMP & ENGINEERING CO.
P/N 08-3300-07 Bronze
Bushing can be pressed
into a stainless steel or
cast iron center section.
(See Figure F). When
installing a new bush-
ing, four bleeder holes
which allow the pump to
exhaust air must be drilled.
(See Figure G). Small nicks can usually be dressed out and the piston returned
to service. Make sure that the guide pin is straight and smooth
or the piston will not move freely in the cylinder. Clean out anti-
centering pin holes located at each side of the piston. Pin holes
are located on each side of the annular groove on the top of the
piston and travel to each end. New O-rings should be installed
on the end caps. Lubricate the O-rings and install the end caps,
assuring that proper alignment of the piston and cylinder ports
is maintained. (See Figure D). Reinstall air valve to center block
of pump. Tighten per the torque specifications in Section 8D
(page 16).
GLYD™ RING REPLACEMENT:
When the Glyd™ rings become worn, they will no longer seal
and must be replaced. Due to the design characteristics of the
Glyd™ rings, it is suggested that you use the Ringer Seal instal-
lation kit when replacing Glyd™ rings. Consult EOM-Ringer for
installation instructions.
CENTER BLOCK ASSEMBLY:
The pump’s center block consists of a polypropylene or die cast
housing with a cast-in bronze bushing. The bushing has eleven
grooves cut on the inside diameter. There are seven Glyd™ rings
that fit in these grooves (see Figure E). Since these Glyd™ rings
form a part of the shifting function of the pump, it is necessary that
they be located in the proper grooves. The bronze bushing is
replaceable in cast iron or stainless steel center blocks only.
When bushing wear becomes excessive, a new center block
must be used.
Figure F (Side View)
Figure E
4.8 mm (3/16")
DRILL
BLEED-OFF
PORT
3.96 mm (5/32")
DRILL
BLEED-OFF
PORT
4.8 mm (3/16")
DRILL
BLEED-OFF
PORT
Grooves in
bushing which
contain Glyd™ rings
P/N 08-3800-09-07 P/N 08-3210-55-225
Figure G
Center Block
(Front View)