Ingersoll Rand Diaphragm Pump 666250-1CB-C

Check for Teflon diaphragm models

Inspect and replace old parts with new parts as necessary

Look for deep scratches on metallic surfaces, and nicks or cuts in O-rings

Take precautions to prevent cutting O-rings upon installation

Lubricate O-rings with Key-Lube

Do not over-tighten fasteners, refer to torque specification block on view

Re-torque fasteners following restart

Service is divided into two parts

Inspect all parts for wear or damage

Replace worn or damaged parts with new parts as required

Lubricate diaphragm rod with Key-Lube O-ring lube

Lubricate O-ring with Key-Lube O-ring lube

Use ARO pn / 98931-T bullet (installation tool) to install O-ring on diaphragm rod

Remove (123) screws and (122) O" rings

Remove (118) piston rod, (121) sleeve bushing, (119) O" rings and (120) spacers from the (101) motor body

Remove (103) sleeve and (102) O" rings

Ensure all parts are removed and accounted for

Describe any issues encountered during disassembly

Insert spacer ensuring legs are oriented away from blocking internal ports

Lubricate and carefully insert (111) spool

Packing Cup and Piston Installation

Lubricate and install (110) packing cup