Hold the parts in this flush position and rest the 14 hole end
Check the mounting plate and shaft seal carefully to
of the assembly on the protective block on the vise throat
insure that they are clean and in good condition. Insure
and clamp lightly across the port face with the vise.
that the mounting plate seal grooves are clean and smooth.
Each of these seals is slightly larger than its seal groove so
It is good service policy to replace all seals when
that they will be adequately retained in service. Push each
unit is re-assembled. They are available in Kit form
gently into place and smooth down into seal groove with
Part No. 5140.
finger tip. Figure No. 41.
Check the condition of the O-Ring seal on the check
plug and replace it if necessary. Install the check plug in
the check hole with a steady pressure while rocking it
slightly so that the O-Ring feeds in smoothly without
cutting. Figure No. 38.39.
NOTE: Quad ring shaft seal may be used to replace O-
Ring shaft seal in early units and will function properly
in original seal groove.
Thin oil seal at exterior of mounting plate is a dirt
exclusion seal and does not generally need replacement.
If this is replaced it should be pressed into counterbore so
that the lip is directed away from the unit.
Place the mounting plate sub-assembly over spool
shaft and slide down into place over cap locator bushing
smoothly so that seals will not be disrupted in assembly.
Figure No. 42. Align bolt holes with tapped holes. Be
certain that the mounting plate rests fairly flush against end
of housing assembly so that the cap locator bushing
Position the cap locator bushing with large O.D.
chamfer UP partly into end of housing. Figure No. 40.
Insure that it seats against spool assembly flat and smooth
by rotating with finger tips.