Doc No: OMM50001243
Rev: C Page 33 of 68
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4. After the valves have been replaced, inspect each o-ring
(45) or gasket (48) on each valve cover (44) if equipped
with bolt on covers. FMC recommends that the valve cover
o-rings be replaced if nicked or if the o-ring has any other
damage. If the pump uses threaded covers then a thread
sealant should be applied before installation.
5. Install the valve cover with the o-ring in place over the studs
(56). Installation Tip: Apply grease around each o-ring on
the valve cover to prevent the o-ring from falling out of the
cover when turned over for cover installation. Replace
valve cover washers (57) if supplied and the valve cover
hex nuts (58).
6. Tighten the threaded covers enough to seal or torque the
cover hex nuts to the recommend values listed in Table 7:
Torque Values for Critical Pump Fasteners.
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