300FWF996 Page 24
FIGURE 4-3: Fluid End Valve Stop
6.
Remove the suction valve seat or
discharge valve seat with a seat puller
and a seat puller jack. These tools are
available from Gardner Denver.
7.
Clean the valve seat deck thoroughly.
8.
Be sure the o-ring is installed on the
seat and snap the valve seat into the
taper by hand to fit tightly.
9.
Place the winged valve on the top of
the valve seat.
10. Bump the seat into the taper 2-3 times
with a heavy bar to make the fit tight.
11. Reinstall the valve spring and suction
valve spring retainer. (See step 5
above.)
12. Install new seals on the cover and
reinstall the suction valve cover and
retainer nut.
13. Install new seals on the discharge
cover and reinstall the discharge valve,
spring, cover and retainer nut.
14. Run the pump near maximum
discharge pressure to secure the valve
seats into the fluid end tapered bores.
POWER END SERVICE
DANGER
Before attempting to service the
power end of the pump, the following
safety precautions must be observed:
1. Shift the pump transmission into
the neutral gear.
2. Shut off the pump engine and
remove the key from the ignition
to prevent starting the engine
inadvertently.
The power end service procedures deal first
with major assemblies, namely crosshead,
connecting rod, crankshaft, and gear and
pinion sets and then describe how to access
all individual parts.
Oil Stop Head Seal Retainer and Gear
Covers (FIGURE 2-2 and FIGURE 2-3)
1.
Remove any plunger chamber covers
or guards.
2.
Remove the plunger clamps and slide
the plungers forward.
3.
Remove the oil stop head retainer cap
screws and remove the head
4.
Disconnect the input drive-line and
remove the input drive flange from the
pinion shaft.
5.
Remove the rotary union seals and oil
hoses from gear covers.
6.
Remove input seal housing from drive
side cover.
7.
Remove the cap screws in gear covers.
Covers can now be removed.
HALLIBURTON EXHIBIT 1013, Page 30
