PC200_Manual_REV_G-1.pdf - 第22页

PC200 PVA Revis ion G (201 9) 22 of 56 5. Clean the fluid section. 6. Use a pick to remove larg e amounts of material. Do not mix the m aterials. 7. Use solvent as necessary to clean hard t o get to locations. Fig ure 28…

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PC200
PVA
Revision G (2019)
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Clean the Disassembled Valve
Use solvent, lint free towels, and cotton tipped applicators to clean the valve. Wear
protective gloves. Do not get material or solvent on your skin.
When you clean the valve, remove all grease and material before the valve is assembled
again. All O-rings, seals, and screws should be cleaned.
1. Clean every part completely with appropriate solvent. Do not mix material A
with material B or they will cure.
2. Clean the seal plate.
Figure 25: Clean the Seal Plate
3. Clean the air cylinder.
Figure 26: Clean the Air Cylinder
4. Clean the cylinder cap.
Figure 27: Clean the Cylinder Cap
PC200
PVA
Revision G (2019)
22 of 56
5. Clean the fluid section.
6. Use a pick to remove large amounts of material. Do not mix the materials.
7. Use solvent as necessary to clean hard to get to locations.
Figure 28: Clean the Fluid Section
8. Clean the separation block and manifold. Make sure to clean all grooves and
ports.
9. Clean the piston-rod assembly.
NOTE: RW-series PC200 uses two different size rods.
10. Clean the rods.
11. Use a wrench to hold one rod and a use hex key to loosen the screw that
holds the rod in position in the piston.
12. Remove both rods. Examine the rods and make sure there is no material on
them. Clean the screws if necessary.
13. Use the hook and pick set to remove the O-ring on the piston.
14. Clean the piston and the O-ring.
Figure 29: Clean the Piston-Rod Assembly
PC200
PVA
Revision G (2019)
23 of 56
Assemble the Valve
This section shows how to assemble PC200 series valves (Standard PC200R process
is shown).
Some installation steps that involve rods, lip seals, sleeve bearings, and O-rings will
differ between the R and RW series of the PC200. Not all options are shown. Valve
series are closely related. When procedures are different from what is shown, “Notes”
are given. If you have questions about procedure steps, parts, or content, contact PVA’s
customer service department.
Procedure
1. Apply removable thread lock to a machine screw.
2. Put the screw with thread lock in the piston.
3. Put a rod in into the countersunk side of the piston.
Figure 30: Install Screw in the Piston-Rod Assembly
4. Use a 3/16” wrench (or an adjustable wrench) on the flats of each rod to hold
them in place and tighten the screw with a 7/64” hex key. The screw will
engage the rod.
5. Repeat steps 1-4 for the second rod and machine screw.
Figure 31: Rods and Piston
NOTE: RW-series PC200 uses two different size rods.