FMC Corporation - Talstar FMC L06 - Manual (Page 29)

Doc No: OMM50000903
Rev: B Page 29 of 65
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10.3 Replacing Valves
1. Three types of valves may be supplied with various models of the “L” series
pumps. They are disc type valves, AR style valves, and ball type valves. The
next steps must be performed for each type of valve.
2. A minimum of approximately 2 feet of clearance is required above, below, and in
front of the pump fluid cylinder to allow valve service without removal of the fluid
end. If sufficient clearance is not available, the fluid end must be removed as
outlined in previous section and taken to a work shop for valve service. The
following procedure is written under the assumption that sufficient clearances
exist.
3. Remove the three suction plugs (63)
from the bottom of the fluid cylinder
(37).
4. Remove the three valve covers (49),
the threaded version is shown, or
remove the six valve cover nuts (53)
holding the valve cover clamps (51)
and then remove the three valve
covers (49) from the fluid cylinder.
NOTE: Pumps that have threaded
valve covers do not require removal of
nuts and clamps.
5. The cylinder covers (54) on most “L”
series pumps allow access for inlet
valve removal. For these pumps,
remove the cylinder covers as
described in section 10.1, steps 1
through 4. Some pumps may be
equipped with a single cover plate.
Refer to 10.1, step 5.