We want to help you determine if your tractor’s 3-point hitch hydraulic system is leaking.
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.
Time to get started.
Reason:
To determine if there is a leak in the 3-point hitch hydraulic system.
1. Park the tractor safely and securely.
2. Shut off the engine.
Place chocks (A, Fig. 1) on each driving direction of the front and rear wheels.
A - Chock (8 pieces)
Note:
The parking brake lever is in the LOCKED position.
The range shift lever is in N (neutral) position. (SA324/424 only)
Equipment Required:
Ballast box
3. 3-point Hitch Leakage Test Procedure:
Attach the 661 lb. (300 kg) ballast box or a 661 lb. (300 kg) weight on the 3-point hitch for SA221, 1,208 lb. (548 kg) ballast box or a 1,208 lb. (548 kg) weight on the 3-point hitch for SA324/424, as shown in Figure 2.
Open the hydraulic flow control/stop valve all the way.
Start the engine.
Run the engine at 3,200 rpm.
Close the hydraulic flow control/stop valve completely.
Shut off the engine.
Measure how much the weight drops over the next5 minutes.
Restart the engine.
Reopen the hydraulic flow control/stop valve all the way and raise the weight to its fully raised position again.
Shut off the engine.
Measure how much the weight drops over the next 5 minutes in this state.
Specifications:
Average drop after 5 minutes --- 1 in. (25 mm) for SA221 0.4 in. (10mm) for SA324/424
If you need any further help or have any questions about your 3-point hitch hydraulic system, tractors, or anything else, please contact your dealer, local mechanic, or call us at 602-734-9944. Please ask about our current new and used tractor supply.
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