43
TIRES, WHEELS AND BALLAST
B
Rear Ballast
Add weight to rear wheels if needed to improve traction or
for stability. The amount of rear ballast should be matched
to job and the ballast should be removed when it is not
needed.
The weight should be added to the tractor in the form of
liquid ballast.
C
Liquid Ballast in Rear Tires
Water and calcium chloride solution provides safe
economical ballast. Used properly, it will not damage tires,
tubes or rims. The addition of calcium chloride is
recommended to prevent the water from freezing. Use of
this method of weighting the wheels has the full approval
of the tire companies. See your tire dealer for this service.
Liquid weight per tire (75 Percent filled)
A
Do not fill tires with water or solution more than 75% of
full capacity (to the level of valve stem at 12 o'clock
position).
B
Maximum Masses
(See "APPENDICES" section.)
Tire sizes
7 - 16
8 - 16
9.5 - 16
Slush free at -10
Solid at -30
[Approx. 1 kg CaCl per 4L
of water]
25 kg
35 kg
54 kg
Slush free at -24
Solid at -47
[Approx. 1.5 kg CaCl per
4L of water]
27 kg
37 kg
57 kg
Slush free at -47
Solid at -52
[Approx. 2.25 kg CaCl per
4L of water]
29 kg
39 kg
60 kg
(1) Air
(2) Water
(A) Correct : 75% Full
Air compresses like a cushion
(B) Incorrect : 100% Full
Water can not be compressed