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BRACKET 0544530 - Caterpillar



0544530 BRACKET Caterpillar parts BRACKET
Rating:
86
Alternative (cross code) number:
CA0544530
054-4530
0544530
Caterpillar 0544530 BRACKET
Weight: 0.90 pounds 0 kg.

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Image1.4.1
5. Check the S/N of control valve with the rework list to confirm the correct stems are available.
Image1.5.1
6. Remove the cover under the control valve.
Use the 9U-6639 Ratchet and 6V-9113 Socket.
Image1.6.1
7. Loosen the connector of the pilot hose in order to adjust the hose angle. Loosen the mounting bolt for the 158-8159 Control Valve Housing.
Use 214-7218 Wrench.
Image1.7.1
8. Pull out the stem that needs replaced. Refer to rework machine list in the Action Required section.
Note: Only for ATT stem, loosen the plug of 6E-2274 Cover to relief trapped pressure in order to pull out and insert the stem smoothly.
Caution: Make sure you have safety glasses and pull slowly the stems because the oil may squirt. Pull straight up. Avoid cocking the stem on the way in and out as it may cause damage to stem and/or bore of control valve. Once damaged, the new stem might not be able to be put in or friction may increase during machine operation.
Use the 9U-6639 Ratchet and 6V-9111 Socket.
Image1.8.1
9. Check the part number of previous stem and new stem to prevent mis-assembling.
10. Place the stem in the bore opening. Carefully insert the stem while turning slightly.
Note: Only for ATT stem, loosen the plug of 6E-2274 Cover to relief trapped pressure in order to pull out and insert the stem smoothly.
Image1.10.1
11. Reinstall the 158-8159 Housing and tighten the mounting bolts to a torque of 49 +/- 5 Nm.
Caution: The O-ring seal should be in place without binding when assembling housing.
Use the 214-7218 Wrench and 214-7349 Torque Wrench.
Image1.11.1
12. Purge the air from the system. Loosen the connection of pilot hose and start the engine. Operate the engine at low idle in order to bleed air from the pilot hoses at the replaced stems. After bleeding, tighten the connector to a torque of 40 +/- 4 Nm.
Use the 6V-9102 Wrench and 214-7349 Torque Wrench with No.22 Open-End Wrench.
Image1.12.1
13. Reconnect all pilot hoses and tighten to a torque of 40 +/- 4 Nm.
Use the 6V-9102 Wrench and 214-7349 Torque Wrench with No.22 Open-End Wrench.
14. Double check the tightening torque of each bolt after all the planned stems are replaced. Tighten an oil supply plug on the top of the hydraulic tank.
Use the 9U-6639 Ratchet and 194-3565 Socket.
15. Operate each function at engine low idle and confirm lever pattern is correct. Adjust dial speed to high idle and warm up the machine until hydraulic oil temperature becomes 50 Deg.C. Confirm that oil is not leaking and implements function as intended.
16. Keep hydraulic oil temperature at 50 Deg.C to 60 Deg.C with high idle engine speed. And check hydraulic drifts on following items based on RENR6639 for 318C, RENR3817 for 320C, RENR7105 for 321C, RENR7295 for 320D, RENR7385 for 325D, and RENR9585 for 330D "Testing and Adjusting".
1) Cylinder Drift-Check(Empty Bucket) for each cylinder.
2) Machine Drift-Check on a slope.
3) Swing Drift-Check on a slope.
17. Stop engine.
18. Obtain a hydraulic oil sample from the main S.O.S port.
Reference: Refer to Operation and Maintenance Manual, "Sampling Interval and Location of Sampling Valve"


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