Caterpillar Duo Cone Seal Installation Tool
DUO-CONE SEAL INSTALLATION.
Avoid prolonged skin contact with isopropyl alcohol. Avoid breathing the vapors in enclosed areas without adequate ventilation and do not smoke. Isopropyl alcohol is flammable. Do not use near open flame, welding operations, or around heated surfaces exceeding 482°C ( 900°F). • Remove any film, dust or other foreign matter from the following components: • Rubber toric ring (2) • Housing ramp (4) • Seal ring ramp (7) • Housing retaining lip (3) • Seal ring retaining lip (8) • Seal ring housing (5) Note: Seal rings have very sharp edges. Protective gloves should be worn in order to prevent injury. Use isopropyl alcohol or other approved cleaning agents.
Use a clean lint free cloth for wiping. All components should be completely dry before proceeding.
Note: Never permit oil to contact rubber toric ring (2), housing ramp (4) or seal ring ramp (7) before both seal rings (1) are assembled in the final position. Illustration 3 g00446488 • Put rubber toric ring (2) on seal ring (1). Make sure that the rubber toric ring is positioned at the bottom of seal ring ramp (7).
The rubber toric ring must rest against retaining lip (8). The rubber toric ring must be straight in the seal ring. The rubber toric ring must not be twisted. Note: Be careful when you are working on the rubber toric ring.
Nicks, cuts or scratches may cause leaks. • Refer to Special Instruction, SEHS8484, 'Tool and Specification Chart for Conventional Duo-Cone Seals' in order to select the proper installation tool. Illustration 4 g00534621 Use towels or a mat (A) that is made of foam to aid with installing the toric ring (2 ). • Install rubber toric ring (2) on seal ring (1) with installation tool (9).
Lightly dampen the lower half of rubber toric ring (2) with an appropriate lubricant. Refer to the 'Acceptable Lubricants for Assembly' section that is in this publication for additional information. Use the following techniques in order to dampen the rubber toric ring: • Wipe the seal with a lint free cloth. • Place towels or a mat that is made of foam at the bottom of a container. Soak the towels or the mat with the lubricant. Dip the rubber toric seal in the container. Note: Periodically inspect the installation tool for damage.
If necessary, replace the installation tool. Illustration 5 g00534622 • Make sure that the lower half of rubber toric ring (2) is still wet. Use installation tool (9) in order to position seal ring (1) and rubber toric ring (2) squarely against seal ring housing (5). Make sure that you use sudden pressure and even pressure when you press a toric ring that has a small diameter.
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Press rubber toric ring (2) under housing retaining lip (3) that is part of seal ring housing (5). Use the following steps in order to install a rubber toric ring that has a large diameter: • Push the rubber toric ring over the seal ring retaining lip on one side. • Tap the installation tool with a rubber mallet on the opposite side of the rubber toric ring. Tap until the rubber toric ring is past the seal ring retaining lip of the housing. Illustration 10 g00446495 • Wipe seal ring face (6) that is part of seal rings (1) by using a lint free cloth. No particles of any kind are permissible on the sealing surfaces. A small piece of paper from a paper towel can force apart the seal ring face, which will cause a leak.
Note: Rubber toric ring (2) must never slip on the ramps of seal ring (1) or the ramps of seal ring housing (5). In order to prevent slippage, allow adequate time for evaporation of the lubricant before proceeding with the procedure. Once the rubber toric ring is correctly positioned, the rubber toric ring must roll only on the ramps. Avoid prolonged skin contact with isopropyl alcohol.
Avoid breathing the vapors in enclosed areas without adequate ventilation and do not smoke. Isopropyl alcohol is flammable.
Do not use near open flame, welding operations, or around heated surfaces exceeding 482°C ( 900°F). Note: Do not use any liquid that leaves an oil film. Do not use any liquid that does not evaporate quickly.