Kubota M7040SU Operator's Manual page 62

44 TIRES, WHEELS AND 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)
Tire sizes
Slush free at -10 (-14 )
Solid at -30 (-22 )
[Approx.1 kg (2 lbs.)
CaCl per 4 L (1 gal.)
of water]
Slush free at -24 (-11 )
Solid at -47 (-53 )
[Approx.1.5 kg (3.5 lbs.) CaCl
per 4 L (1 gal.)
of water]
Slush free at -47 (-53 )
Solid at -52 (-62 )
[Approx.2.25 kg (5 lbs.) CaCl
per 4 L (1 gal.)
of water]
A Do not fill tires with water or solution more than 75% of
full capacity (to the valve stem level).
(1) Air (A) Correct-75% Air compresses like a cushion
(2) Water (B) Incorrect-100% Full Water can not be compressed
14.9-28 16.9-28 16.9-30
230 kg 295 kg 314 kg
(570 lbs.) (651 lbs.) (693 lbs.)
247 kg 317 kg 338 kg
(545 lbs.) (699 lbs.) (746 lbs.)
260 kg 339 kg 357 kg
(574 lbs.) (747 lbs.) (787 lbs.)