Determining Ballasted Tractor Weight, Weight Split and Axle Loads

Example 1

 
8330T with Front Weight Support- 225 PTO-HP
       
  Tracks 25" Durabuilt (base tracks)  
  Front Ballast Weight Support
  Rear Ballast None  
       
According to the Base Weight Options chart on following pages, the base weight is 12275 kg (27061 lb). Note that this chart does not assume that a front weight support is mounted.
       
Front Weight Support ADDS 170 kg (375 lb).
       
Combine all of these as shown
  Front Idler Wheel Rear Drive Wheel Total
Base Tractor Weight 5601 kg (12348 lb) 6674 kg (14713 lb) 12140 kg (27061 lb)
Front Weight Support 170 kg (375 lb)   170 kg (375 lb)
Total 5771 kg (12723 lb) 6674 kg (14713 lb) 12445 kg (27436 lb)

 

So the tractor is ballasted to the level of 12445 kg (27436 lb) / 225 PTO-HP = 55.3 kg (122 lb) / PTO-HP (Light).

The percentage of weight on the front idler wheel is 5771 kg (12723 lb) / 12445 kg (27436 lb) x 100% = 46%.

BB92646,0000067 -19-15AUG05-1/2

Example 2

 
8430T with Front Weight Support with 16 QUIK-TATCH Weights, 4 Idler Wheel Starter Weights, and 16 Idler Wheel Weights- 250 PTO-HP
       
  Tracks 25" Durabuilt (base tracks)  
  Front Ballast 16 QUIK-TATCH Weights on Front Support
  Other Ballast 4 - 48 kg (105 lb) Idler Wheel Starter Weights
16 - 45 kg (100 lb) Idler Wheel Weights
       
According to the Base Weight Options chart on following pages, the base weight is 12275 kg (27061 lb). Note that this chart does not assume that a front weight support is mounted.
       
Front Weight Support ADDS 170 kg (375 lb).
16 QUIK-TATCH Weights on Weight Support ADD 752 kg (1664 lb).
4 Idler Wheel Starter Weights ADD 192 kg (420 lb).
16 Idler Wheel Weights ADD 720 kg (1600 lb).
       
Combine all of these as shown
  Front Idler Wheel Rear Drive Wheel Total
Base Tractor Weight 5601 kg (12348 lb) 6674 kg (14713 lb) 12140 kg (27061 lb)
Front Weight Support 170 kg (375 lb)   170 kg (375 lb)
16 QUIK-TATCH Weights 752 kg (1664 lb)   752 kg (1664 lb)
4 Idler Wheel Starter Weights 192 kg (420 lb)   192 kg (420 lb)
16 Idler Wheel Weights 720 kg (1600 lb)   720 kg (1600 lb)
Total 7435 kg (16407 lb) 6674 kg (14713 lb) 14109 kg (31120 lb)

 

So the tractor is ballasted to the level of 14109 kg (31120 lb) / 250 PTO-HP = 56 kg (124 lb) / PTO-HP (Medium).

The percentage of weight on the front idler wheel is 7435 kg (16407 lb) / 14109 kg (31120 lb) x 100% = 53%.

BB92646,0000067 -19-15AUG05-2/2