![]() Observe the system to find the maximum operating pressure.Kubota Tractor BX25DLB LA240 BT602 Workshop Manual. excavator with the broken hammer is configured by the hydraulic hammer excavator. The following shows the same seal after the bottom half is rotated 180o.Excavator hydraulic system troubleshooting. The above depicts how the torics have slipped instead of rolling on the left hand side of the seal. The following examples show the effects of a cocked Any wobbling motion of the seal is an indication of cocked seals and can cause dirt to enter by pumping mud past the torics. If the rubber toric slips at any location, it will twist, causing the seal rings to cock. High impact can scratch or break the seal components. While completing the final assembly of the unit, make sure that both housings are in correct alignment and are concentric. ![]() Oil must not contact surfaces other than the sealing face. (Even a hair can hold the seal faces apart and cause a leak)Īpply a thin film of oil on the entire seal face of one or both seals using a lint-free applicator. No particles of any kind are permissible on the sealing surfaces. Wipe the face of each seal ring using a lint-free wipe. The following shows incorrect installations resulting in cocked seals. Once correctly in place, the rubber toric must roll on the ramp only. To prevent slippage, allow adequate evaporation time for the lubricant before proceeding with further assembly. The rubber torics must never slip on the ramps of either the seal ring or the housing. If correct installation is not obvious, remove the seal from the housing and repeat process. Twists, misalignment, and bulges of the toric (as shown) will result in seal failure. The rubber toric can twist if it is not wet all around during installation or if there are burrs or fins on the retaining lip of the housing. Use the installation tool to push down and your fingers to pull up uniformly on the rubber toric and seal ring. If small adjustments are necessary, do not push or pull directly on the seal ring. The difference in height around the ring must not be more than 1.0 mm. For larger diameter seals, which will not press in with sudden and even pressure, it is acceptable to work the toric past the retaining lip by starting one side and tapping the opposite side of the installation tool with a rubber mallet until it is engaged past the retaining lip of the housing.Ĭheck the assembled height variation (A) in a least four places, 90o apart, use a caliper, toolmakers’ ruler or any other calibrated measuring device. With the lower half of the rubber toric still wet, use the installation tool to position the seal ring and the rubber toric squarely against the application housing (as shown).įor smaller diameter seals, use sudden and even pressure to push the rubber toric under the retaining lip of the housing. The following are two kinds of material that FUYOTE offers, For specific conditions please consult FUYOTE:įour materials below are provided by FUYOTE. Metal seal rings material should be selected according to different working conditions. As seal ring material has a direct effect on its sealing ability, we recommend that Metal seal Rings Materialįuyote’s metal seal rings are made of high alloy cast iron in a Rockwell hardness value of HRC 60-69. Peripheral speeds of up to 10 m/sec can be effectively handled. On tracked vehicles it is vital to provide effective protection against abrasive media such as dust,sand ,mud,stones or earth for the bearings of the thread,support and guide rollers and for wheel or axle hubs. Robust and efficient,they guarantee customers high serviceability,durability and maximum productivity of their equipment. ![]() Our metallic mechanical face seals have served well in such arduous conditions for years. The drive mechanisms for tracked vehicles and construction machinery,or the power transmission equipment for conveyor systems,sand conditioning plant,concrete and cement mixers,mining machinery and similar heavy plant are subjected to extreme abrasive stresses in the environments in which they work.įailures can severely disrupt operations,and repairs are very costly. Heavy duty static and dynamic sealing technology is concerned with providing sealing solutions for machinery applications in which conventional seal lack the required durability.Cat duo cone seal solve this problem ![]()
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