SEAL-LIP TYPE 1475529 - Caterpillar

Port Locations
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Typical port locations and adjustment locations (49) Suction port (50) Discharge port (51) Case drain port (52) Adjustment screw for minimum displacement (53) Adjustment screw for high-pressure cut
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Typical port locations and adjustment locations (54) Adjustment screw for maximum displacement (55) Case drain port
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Pump Setup
Connect a 1 inch high pressure "XT-6" rated hose from the pump discharge port (50) to the flow meter inlet on the test bench.
Connect a 1 inch high pressure "XT-6" rated hose from the flow meter outlet on the test bench back to the tank.
Connect the oil supply suction hose to pump inlet port (49) .
Purge all air from the suction line before rotating the pump. Loosen the suction hose at the pump until oil leaks from the connection. Tighten the suction fitting.
Fill the pump case with oil before rotating the pump. Pour oil directly into a case drain port until the case is full.
Connect an in-line flow meter to the case drain port (51) or (55). Direct the oil from the in-line flow meter back to the tank.
Do not operate the pump in the wrong direction. The correct direction of rotation will be stated on the pump. The direction of rotation is viewed from the input shaft end. Visually check for proper rotation of the test bench.Test Procedure
Note: The steps in the procedure correlate with the steps under the test specifications according to your specific part number.The contamination level of the hydraulic oil in the test bench should be ISO 16/13 or better. The oil in the test bench should be one of the following.
SAE 10W at 50 °C (122 °F) or
Mobil DTE-11 at 46 °C (115 °F)
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Start rotating the pump according to the RPM listed in Step 1 of the "Test Specifications". Listen for abnormal noise and verify flow from the pump. Be sure all connects are secure and not leaking. Check for leaky shaft seals and control valve connections.
Slowly increase the input RPM to the value in Step 2 of the "Test Specifications". The adjustment screw for the maximum displacement (54) may need adjusted in order to achieve the correct discharge flow. The pump may not be feasible if the actual flow is less than the value in Step 2 of the "Test Specifications". The pump should be disassembled and inspected.
Increase the pump discharge pressure to the value in Step 3 of the ""Test Specifications"". Compare the actual case drain value with the case drain value in Step 3 of the ""Test Specifications"". This value is an indication of the pump efficiency. The pump may not be mechanically feasible if the case drain is more than the value Step 3 of the "Test Specifications". The pump should be disassembled and inspected.
Increase the pump discharge pressure to the value in Step 4 of the "Test Specifications". Turn the adjustment screw for the high pressure cut (53) until the actual high-pressure cut value is equal to the value in Step 4 of the "Test Specifications". Pump discharge flow should