Ingersoll Rand Diaphragm Pump 666250-144-C

Replace O-rings if worn or damaged and reinstall sleeve

Bushing and Spacer Installation

Carefully push (118) pilot rod into bushings

Retain pilot rod with components

Disassembly of Plate and Gaskets

Push on the inner diameter of (111) spool to force the (109) piston out

Continue pushing the (111) spool and remove it

Check for scratches and gouges on the (111) spool

Remove components from the fluid section

Select the type of diaphragm to remove

Note any scratches or marks on the diaphragm rod (1)

Refer to part views and descriptions on pages 4 through 7 for parts identification and service kit information.

Ensure ARO Smart Parts are available for fast repair.

Provide a clean work surface to protect sensitive internal moving parts from contamination.

Select the service kit for the diaphragm pump function

Select the material option for the FLUID SECTION

Empty captured material in the outlet manifold by turning the pump upside down to drain material.

Orient spacer legs away from blocking internal ports

Lubricate and insert (111) spool

Lubricate and install (110) packing cup

Insert (109) piston into air inlet side cavity

Ensure (110) packing cup lips point outward

Install gasket and replace plate