300FWF996 Page 23
11. Install and hand tighten the packing nut
to align the packing in the bore.
12. Loosen the packing nut to allow for
installation of the plunger.
13. Insert the plunger through the suction
cover hole into the packing. It may be
necessary to bump the plunger through
the packing with a slide hammer.
14. Tighten the packing nut.
15. Inspect the clamp surfaces, plungers,
and extension rods for cleanliness.
16. Install the clamp and tighten screws to
the torque specified on page 36.
17. Tighten the packing nut again.
18. Replace the seals on the suction cover.
19. Install the suction valve spring retainer
(if necessary), suction cover and
tighten the suction cover retainer nut.
20. Make sure that the plunger lube line is
in place before restarting the pump.
Plunger Size Change
The Fluid Cylinder must be replaced if it is
determined that the plunger size must be
changed to meet job requirements. Each
plunger size requires a different fluid end.
1.
Follow steps 1 through 7 of the Fluid
End Removal and Installation section
on page 21.
2.
Install the new fluid end size by
following steps 1 through 6 on page 22.
Valve and Seat Replacement
This procedure may be performed with the
fluid end on the pump.
WARNING
Never try to remove or cut a
valve seat with a torch. Severe
damage to the fluid end may
occur.
Before starting, make sure that special tools
required for this procedure are available. For
part numbers of the tools see the Parts
Manual.
1.
Remove the discharge cover retainer
nut with the hex wrench provided with
the pump.
2.
Remove the discharge cover with a
threaded slide hammer type puller.
3.
Remove the suction cover retainer nut
with the hex wrench provided with the
pump.
4.
Remove the suction cover with a "slide
hammer type" puller.
5.
Remove the suction valve spring
retainer. Once the valve stop/spring
retainer is visible, downward pressure
and a twisting or tilting action will
disengage the stop. (For longhorn
style spring retainers, remove the
discharge cover, valve and spring, and
pass a long bar through the discharge
valve-seat and put downward pressure
on the suction valve stop. For gun
sight spring retainers, utilize the spring
retainer installation tool provided in the
fluid end tool kit). The suction valve
spring and valve can now be removed
by hand.
HALLIBURTON EXHIBIT 1013, Page 29
