Counter Weight - Hardi NAVIGATOR 4000 Instruction Book

Counter Weight

To improve stability on articulated models, extra weight can be added
by means of liquid-filled tyres.
The standard tyre valve is an universal air-water valve. The tyres may be
filled with liquid to max. 75% of their total volume.
Use a mixture of water and CaCl
damage as described below:
200 g CaCl per litre of water gives protection to -15 °C.
2
300 g CaCl per litre of water gives protection to -25 °C.
2
435 g CaCl per litre of water gives protection to -35 °C.
2
Filling the tyres
1. Jack up the wheel and rotate wheel till the valve is positioned at
"12 o'clock".
2. Remove the valve body and fill liquid, until it reaches the valve.
3. When surplus liquid is drained through the valve stem, fit the valve
body again.
4. Adjust tyre pressure and lower the wheel. Please refer to "Tyre
Pressure" on page 106.
€
DANGER! It is very important that the CaCl
water on to CaCl ! If you get CaCl
2
advice afterwards.
±
WARNING! The tyres must be liquid filled to max. 75 % of total tyre volume. Fill only the quantity. of liquid necessary
to obtain sufficient stability of the sprayer. Do not fill liquid and CaCl
μ
ATTENTION! When filling the tyres, the valve should be positioned at 12 o'clock, and when adjusting the tyre pressure
the valve should be positioned at 6 o'clock.
Emptying the tyres
1. Rotate wheel until the valve is positioned at "6 o'clock".
2. Remove the valve body and lead the liquid away. Retain the liquid
in an appropriate container.
3. To empty the tyre completely, the tyre is inflated and a thin drain
tube is led to the bottom of the tyre. The air pressure will now
empty the remaining liquid.
4. Remove the drain tube, fit the valve and inflate the tyre to specified
pressure. See "Technical Specifications" in the table "Tyre pressure".
μ
ATTENTION! Disposal of CaCl
(calcium chloride) to avoid frost
2
is added to the water and agitated, until it is fully dissolved. Never pour
2
in your eyes, flush instantly with cold water for at least 5 minutes and seek medical
2
has to take place according to local legislation.
2
4 - Sprayer setup
mixture in tyres without tubes!
2
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