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I Need to Bleed My Yanmar Tractor Hydraulic System

We want to help you bleed your Yanmar tractor hydraulic system.

If you do not feel that you understand these steps, or can perform them safely, consult your tractor dealer or local mechanic. Also always consult your tractor owner’s manual for model-specific information.

To complete this task you will need to purchase a ballast box.

Time to get started.

The reason you need to bleed the hydraulic system is to remove any trapped air in the hydraulic system that might prevent proper operation.


1. Park the tractor safely and securely.

2. Shut off the engine.

· Place chocks (A, Fig. 1) on each driving direction of both front and rear wheels.

A - Chock (8 pieces)


· The parking brake lever is in the LOCKED position.

· Range shift lever is in N (neutral) position. (SA324/424 only)