How to Repair a KMT Style SL4 Dynamic Seal Assembly Using Kit #12137

Remove the old components from the plunger end of the high-pressure cylinder with the proper tooling.

Remove the cylinder liner from the high-pressure cylinder.

Clean the high-pressure cylinder threads of all Blue Goop with isopropyl alcohol or similar cleaning agent.

Inspect the inside of the high-pressure cylinder, if scratches/galling have occurred, use Scotch Brite or a similar abrasive pad and roll back and forth to each end of the high-pressure cylinder to remove blemishes.

Repeat the process (if needed) with 1500 grit abrasive to polish the inside of the bore.

Apply high pressure grease to the O-ring.

Slide the O-ring onto the groove of the high-pressure seal.

Put the high-pressure seal into the dynamic end of the high-pressue cylinder.

Put the dynamic seal back-up behind the high-pressure seal.

Put the brass packing follower into the high-pressure cylinder, behind the dynamic seal back-up.

Continue to static seal assembly. If complete, reassemble the high-pressure cylinder into the intensifier assembly.