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TUBE AS-OIL 5088259 - Caterpillar

5088259 TUBE AS-OIL Caterpillar parts TUBE
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Caterpillar 5088259 TUBE AS-OIL

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Table 9
Model     Engine Stall     MB1 Pressure     MB2 Pressure    
236B2/ 252B2     2700 200 RPM    
38300 2000 kPa (5555 290 psi)    
38300 2000 kPa (5555 290 psi)    If the engine stall RPM is not correct, refer to the troubleshooting section.If the MB pressures are not within the specification, the crossover relief valves may need to be adjusted. Refer to the procedure below.
Remove the cap of the crossover relief valve that is not within the specification. Remove the spring and the crossover relief valve.
Illustration 17 g01365567
Place crossover relief valve (5) into a vise.
Turn the set screw (6) counterclockwise in order to loosen the setscrew.
Illustration 18 g01365572
Place retainer (7) of the crossover relief valve in a vise. Turn adjustment screw (8) in order to adjust the relief pressure. Turn the adjustment screw clockwise in order to increase the pressure or turn the adjustment screw counterclockwise in order to decrease the pressure. One full turn of the adjustment screw is approximately 6400 kPa (928 psi).Note: When you adjust the crossover relief valve to decrease the pressure, turn the adjustment screw for an additional 1/4 turn past the estimated adjustment setting. Then, turn the adjustment screw clockwise for 1/4 turn.
Tighten setscrew (6) to a torque of 6.5 N m (58 lb in).
Install crossover relief valve (5), the spring, and the cap. Tighten the cap to a torque of 160 10 N m (118 7 lb ft).Double Stall Test
The test will determine if engine performance is low.Note: The 6V-3121 Multitach or the 9U-7400 Multitach Tool Group should still be installed on the machine. If the unit is not installed, reinstall the unit.
Position the machine against an object that will prevent the machine from moving. It is possible to drive through the brakes.
Raise the cab. Refer to the Operations and Maintenance Manual, "Cab Support Operation" for the correct procedure.
Illustration 19 g01356435
(1) Electrical connection (2) Brake solenoid
Disconnect the electrical connection (1) for the brake solenoid (2) .
Sit in the operator's seat and fasten the seat belt. Lower the armrest.
Start the engine. Run the engine at LOW IDLE and verify that the oil temperature is within the specification of 45° 5°C (113° 9°F).
Slowly increase the engine speed to HIGH IDLE.Note: Do not stall the machine for more than 15 seconds. Damage to the machine could result.
Push the pilot operated hydraulic control in the FORWARD direction.
At the same time, push the pilot operated hydraulic control ( work tool) to the TILT BACK position.
Record the engine rpm.
Table 10
Model     Double Stall Engine    
236B2/ 252B2     2300 400 rpm    If the engine stall RPM is not correct, refer to the troubleshooting section.Test and Adjust − Work Tool System
Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.Always use a board

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