FMC Corporation - Talstar FMC L06 - Manual (Page 45)

Doc No: OMM50000903
Rev: B Page 45 of 65
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10.3.2.3 Installation of Disc Valves
The suction valves must be installed before the discharge valves can be installed. The
following reassembly procedure is applicable for both.
1. Select a new valve assembly and check to insure the taper on the valve is clean.
2. Carefully clean the taper in the fluid cylinder and on the valve seat with a cleaning
solution and a clean cloth. Small scratches can be removed with steel wool or
100 grit emery paper. Remove all dirt, grease, oil, water, or any other
contaminants from the surfaces. Do not oil the seats or the seating surfaces in
the fluid cylinder. Confirm that they are dry before installation.
3. Position the valve assembly directly over the mating taper in the fluid cylinder.
4. Let the valve seat drop into the taper. Check to see that the seat is sitting in the
taper properly and not cocked to one side. If the seat drops straight, it will seize
on the taper. When correctly seated, it cannot be pulled up by hand.
5. Place the appropriate installation tool on the top surface of the valve assembly.
The suction valve will require tool P534696 for the small valves and tool P534699
for the larger valves. Using the Ball Knock Out tool, strike with a hammer three
times to seat the valve.
6. Repeat steps 1 through 4 for the discharge valve.
7. Place tool P534696 for the small valves on the top surface of the valve and use
the Ball Knock Out tool as described in step 5 to seat the valve. For the larger
valve use tool P534702 that has the handle included. Strike the end of the handle
three with a hammer to seat the valve.