5.3
Checking Tire Pressures and Adding Tire Ballast
5.3.1
Checking Tire Pressures
Check tire pressures with a gauge.
• Bar: 221 kPa (32 psi).
• Turf: 138 kPa (20 psi).
• Caster: 69 kPa (10 psi).
5.3.2
Adding Tire Ballast
When using large headers on windrower, adding fluid ballast to rear caster tires will improve machine stability.
Machine stability is also affected by different attachments, windrower options, terrains, and driving techniques.
Ballast capability per tire is at a maximum fill of 75% or when fluid is level with valve stem when stem is positioned
at 12 o’clock position.
Always add an equal amount of fluid on both sides. Fluid can be added to any level up to maximum fill.
Table 5.1 Fluid per Tire
Tire Size
Fluid per Tire at 75% Fill
liters (U.S. Gal.)
Total Weight of Both Tires
kg (lb.)
11
7.5 x 16
38 (10)
91 (200)
10 x 16
69 (18)
170 (380)
16.5 x 16.1
158 (41)
377 (830)
11. Weights given are for typical calcium chloride and water mixtures. Weight is reduced by 20% if only water is
used (for areas that do not require antifreeze protection).
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Revision A
