REGULATOR KIT 5P0953 - Caterpillar

(1) Seal Ring(2) Rubber Toric(3) Housing Retaining Lip(4) Housing Ramp(5) Seal Ring Housing
(6) Seal Ring Face(7) Seal Ring Ramp(8) Seal Ring Retaining Lip(9) Installation Tool1. Remove any oil film, dust or other foreign matter from rubber toric (2), ramps (4) and (7), retaining lips (3) and (8), both seal rings (1) and seal ring housings (5). Use isopropyl alcohol and a clean, lint free cloth or paper towels for wiping. All components should be completely dry.
Never permit oil to get on rubber toric (2) or ramps (4) and (7) before both seal rings (1) are put together in their final assembled position (step 10).
Use caution when you are using isopropyl alcohol. Avoid prolonged skin contact with isopropyl alcohol.Vapors may be harmful if inhaled. Use only in a well ventilated area. Do not smoke while using isopropyl alcohol.Isopropyl alcohol is flammable. Do not use near an open flame or near welding operations. Keep isopropyl alcohol away from heated surfaces exceeding 482°C (900°F).
2. Put rubber toric (2) on seal ring (1), at the bottom of seal ring ramp (7) and against seal ring retaining lip (8).
Make sure that rubber toric (2) is straight on seal ring (1) and is not twisted. Be careful when you work on the rubber toric. Nicks, cuts and scratches can cause leaks.
3. Put installation tool (9) on seal ring (1) with rubber toric (2). Lightly dampen the lower half of rubber toric (2) with isopropyl alcohol. Techniques to dampen the rubber toric include wiping with a lint free cloth or dipping in a container with towels or a foam mat saturated with isopropyl alcohol. Do not use Stanisol or any other liquid that leaves an oil film or does not evaporate quickly.
Periodically inspect the installation tool for damage. Replace if necessary.
4. With the lower half of rubber toric (2) still wet, use installation tool (9) to position seal ring (1) and rubber toric (2) squarely against seal ring housing (5) as shown. Use sudden and even pressure to pop (push) rubber toric (2) under housing retaining lip (3) of seal ring housing (5). 5. Check assembled height (A) in at least four places, 90 degrees apart. The difference in height around the seal ring must not be more than 1 mm (.04 in). 6. If small adjustments are necessary, do not push or pull directly on seal ring (1), use installation tool (9) to push down and your fingers to pull up uniformly on rubber toric (2) and seal ring (1).7. Rubber toric (2) can twist if it is not wet all around during installation or if there are burrs or fins on housing retaining lip (3) of seal ring housing (5).
Misalignment, twists and bulges of the rubber toric will cause Duo-Cone Seal failures. If correct installation is not obvious, remove seal from housing and repeat steps 2 through 5.
Rubber toric (2) must never slip on the ramps of either seal rings (1) or seal ring housings (5). To prevent slippage, allow adequate evaporation time