320B Excavator Hydraulic System Caterpillar: Revision history

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17 October 2024

  • curprev 11:1111:11, 17 October 2024DonetteWalcott talk contribs 4,323 bytes +4,323 Created page with "<br>Pumps (28) and (29) are equivalent in performance. Upper pump (28) is directly linked to the engine by a flexible coupling. Pumps (28) and (29) are mechanically related in parallel by gears.Gear sort pilot pump (31) supplies oil to the pilot hydraulic system. Gear type pilot pump (31) is immediately connected to lower pump (29) by a gear. Testing for energy to the solenoid is a troubleshooting step that shouldn't be overlooked when dealing with Hyundai excavator issu..."