Measuring Wheel Slip-Manually

NOTE: Tractors equipped with optional radar unit can automatically determine the percentage of wheel slip. Radar must be calibrated correctly. (See Controls and Instruments Section).

1. Mark a rear tire.

2. Mark a starting point on the ground with the tractor moving and implement lowered in the ground.

3. Follow tractor and mark the ground again where marked tire completes 10 full revolutions.

4. Repeat procedure with implement raised at the same working speed. Count revolutions between same two marks.

5. Use second count and chart to determine slippage.

NOTE: 8-12% is ideal for tractors with MFWD engaged.

6. Adjust ballast or load to give correct slippage.

NOTE: Available horsepower is greatly reduced when wheel slip drops below minimum percent.

Wheel Slippage Chart
 
Wheel Revolutions
(Step 4)		 %
Slip		 Result
     
10   Remove Ballast
9-1/2 5  
     
9 10 Correct Ballast
8-1/2 15  
     
8 20 Add Ballast
7-1/2 25  
7 30  

 
RW26776
RW26777

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