Buhler 2375, 2335, 2425, 2290, 2360 manual Additional Ballast Requirements, Weights, 160

SECTION 2 - OPERATION

Additional Ballast Requirements

Total ballast to be added can now be calculated by subtracting the shipping weight of the tractor, from the recommended operating weight, determined from the chart. Example:

Recommended Operating Weight

of 2335	(335 HP)	14,440 kg (31,825 lbs.)
Shipping Weight
of 2335		11,231 kg (24,760 lbs.)
Total Ballast to
Be Added		3,209 kg (7,065 lbs.)

The figure of 3,209 kg (7,065 lbs.) is the total amount of ballast to be added to the tractor to get it to 43.1 kg (95 lbs) per horsepower. This total ballast figure now needs to be divided between the front and rear axle.

To calculate the amount of ballast to be added to each axle, first determine what type of implement the tractor will be used with.

If the tractor is to be used with a drawbar pull-type implement, the field ready ballasted weight distribution should be 55% on the front axle and 45% on the rear axle of the recommended operating weight. Once the tractor is in the field operating with the implement, the draft load imposed on the tractor by the implement will balance the weight distribution between the axles to a 50/50 dynamic ratio.

If the tractor is to be used with a 3-point hitch-type implement, the field ready ballasted weight distribution should be 65% on the front axle and 35% on the rear axle of the recommended operating weight. Once the tractor is in the field operating with the implement, the draft load imposed on the tractor by the implement will balance the weight distribution between the axles to a 50/50 dynamic ratio.

The following charts detail the proper front to rear ballast for a drawbar application and a 3-point hitch application based on the previous examples.

Example A: Drawbar pull-type implement on a 2335 (335 HP) tractor.

WEIGHTS

	Total	Front	Rear
	kg (lbs.)	kg (lbs.)	kg (lbs.)
Optimum	14,440kg	7,942kg	6,498kg
Operating	(31,825lbs.)	(17,503 lbs.)	(14,322lbs.)
Weight &
Percentage
43.1kg x 338
@ (95 lb x
335)
Scaled	11,231kg	7,625kg	3,966kg
Shipping	(24,760lbs.)	(16,017lbs.)	(8,743lbs.)
Weight
Additional	3,209kg	677kg	2,046kg
Ballast	(7,065lbs.)	(1,486lbs.)	(5,579lbs.)
Required/Axle

Example B: 3-point hitch implement on a 2335 (335 HP) tractor.

NOTE: Since this example tractor is equipped with a 3-point hitch, the overall weight of the tractor will increase from 11,255 kg (24,760 lbs.) to approximately 11,945 kg (26,333 lbs.). The additional 713.5 kg (1,573 lbs.) is the approximate weight of the 3-point hitch kit that has been installed. The full 713.5 kg (1,573 lbs) has been applied to the rear axle of the tractor only. Front axle weight will remain the same. Notice that with the 3-point hitch kit installed, the front and rear axle shipping weight ratios change significantly.

WEIGHTS

	Total	Front	Rear
	kg (lbs.)	kg (lbs.)	kg (lbs.)
Optimum	14,440kg	9,386kg	5,054kg
Operating	(31,825lbs.)	(20,686lbs.)	(11,139lbs.)
Weight &
Percentage @
43.1kg x 338
(95 lbs x 355)
Scaled	11,945kg	7,265kg	4,679kg
Shipping	(26,333lbs.)	(16,017lbs.)	(10,316lbs.)
Weight
Additional	2,495kg	2121kg	375kg
Ballast	(5,492lbs.)	(lbs.)	(823lbs.)
Required/Axle

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