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3. Insert the conical spring into the machined groove in the air cylinder cap followed by
the square cut gasket. Clamp the air motor base into a vice, using a strap wrench to
re-assemble the air cylinder and air cylinder cap to the air motor base. Hand-tighten
only the air cylinder cap so as not to damage the gasket.
4. Place the connecting ring around the connecting rod housing and hand-tighten.
4.3 Fluid section disassembly
1. Remove the foot valve while holding the cylinder with a strap wrench.
2. With the upper air motor assembly already removed, you should be able to simply
push from the upper ball end the complete assembly out the bottom of the lower
section.
3. Use two wrenches and dismantle the upper pump section. Note the orientation of the
Teflon cups. One faces up, followed by a wear ring in the center and the second cup
faces down followed by a lower support washer. Use threadlocker when re-installing.
Breakdown of upper portion of the lower connecting rod assembly.
