Hydraulic Swing Motor Assembly - Part Numbers 589-5725, 487-6234
Compatible with CAT E307, E307.5, E308, 308.5 Excavators
Procurement Guidelines for Swing Motor
- Verify OEM part number and confirm assembly compatibility with CAT 307.5, including swing motor, reducer, and parking brake components
- Require bench test reports for pressure, swing torque, and internal leakage for both new and remanufactured assemblies
- For remanufactured units, ensure replacement of pistons, valve plate, planetary gears, bearings, and all oil seals
- Inspect housing for cracks and verify intact oil seals upon arrival; protect ports to prevent contamination
- Secure assembly during transportation to prevent impact damage to output shaft and precision gear components
- Clean hydraulic pipelines before installation, replace hydraulic filters, and properly bleed air from system
- Test swing speed, swing torque, and parking brake function after installation; check for start-stop impact and oil leakage