PLATE 2900233 - Caterpillar

RIGHT SIDE OF TILT CYLINDER
5. Pressure tap for rod end of tilt cylinder.
RIGHT SIDE OF MACHINE
6. Relief valve for the rod end of the tilt cylinder.3. Increase engine rpm to high idle. Look at the test gauge and move the lift control lever to RAISE position. The high reading on the test gauge is the pressure setting of the relief valve. The high reading on the test gauge must be 15 500 300 kPa (2250 45 psi).
RELIEF VALVE FOR ROD END OF TILT CYLINDER
7. Nut. 8. Retainer.4. If it is necessary to change the pressure setting of relief valve (6), lower the bucket to the ground and stop the engine.5. Loosen nut (7) and turn retainer (8) either clockwise for an increase or counterclockwise for a decrease in the pressure setting of relief valve (6).6. When the pressure setting is correct, tighten nut (7) to a torque of 11 2 N m (8 1 lb. ft.). Remove the test equipment. If a test is to be made for the relief valve for the head end of the tilt cylinder, do not install the shroud.Relief Valve For Head End Of Tilt Cylinder
Make reference to on first page of HYDRAULIC SYSTEM TESTING AND ADJUSTING section.
6V4161 Hydraulic Test Group. 3S6224 Electric Hydraulic Pump. 5H4019 Cover. Miscellaneous Fittings.
LEFT SIDE OF TILT CYLINDER
9. Pressure tap for head end of tilt cylinder. 10. Hose assembly to head end of tilt cylinder.The relief valve for the head end of the tilt cylinder has a higher pressure setting than the main relief valve. Because of this high pressure setting a 3S6224 Electric Hydraulic Pump is used to test the relief valve.1. Stop the engine with the bucket on the ground. Move the tilt control lever to all positions to release the pressure in the tilt circuit.2. Disconnect hose assembly (10) and install a 5H4019 Cover in the line. Connect hose assembly (10).3. Connect a 6V3081 Hose to pressure tap (9) with a 6V4143 Coupler.
RIGHT SIDE OF MACHINE
11. Relief valve for the head end of the tilt cylinder.4. Install tee (17) and a 28 000 kPa (4000 psi) pressure gauge (12) with the correct fittings to the 6V3081 Hose. Connect the 3S6224 Electric Hydraulic Pump to the tee.
TYPICAL GAUGE AND FITTINGS
12. Pressure gauge. 13. 1P2375 Coupler. 14. Coupler. 15. Adapter. 16. Nipple. 17. Tee. 18. Nipple.5. Look at the test gauge and operate the electric hydraulic pump. The gauge reading must be 19 300 300 kPa (2800 45 psi).6. If relief valve (11) needs an adjustment, loosen nut (7) and turn retainer (8) either clockwise for an increase or counterclockwise for a decrease in the pressure setting of relief valve (11).7. When the pressure setting is correct, tighten nut (7) to a torque of 11 2 N m (8 1 lb. ft.). Remove the test equipment. Install the shroud.
RELIEF VALVE FOR HEAD END OF TILT CYLINDER
7. Nut. 8. Retainer.Relief Valves For Attachment Cylinders
Use the same basic procedures to test