MCCORMICK X60.50 - How to Fill the Tyres with Water; How to Deflate the Tyres; Indicative Layout for Water Ballasting

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Tyres, Wheels, Ballasting
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How to fill the tyres with water
WARNING: when you prepare a solution of
calcium chloride to ballast the tyres, NEVER
EVER pour the water on to the calcium chlori-
de since this could lead to a violent reaction.
This danger can be avoided by adding the
calcium chloride very slowly to the water
and stirring until it has completely dissolved.
Jackupthewheelandpositionitwiththevalverightat
thetop.
Unscrewthemovableunion ofthe valveand waituntil
thetyredeflates.
Tightentherelativefitting(3)intothevalve housing(1)
andapplythetube(2).Airwillescapefromthelittletube
(4)asthetyreisfilledwithwater.
Thetyresarefilledtothethree-quartermarkwhenwater
escapesfromthesmalltube(4)ifthisispositionedcom-
pletelydownwards.
To add less water, i.e. obtain a lower weight, turn the
wheelsothatthevalveisinamoredownwardposition.
Tightentheuniononthevalvecasingagainandinflate
thetyrewithairuntilobtainingtheprescribedpressure.
Takethefollowingprecautionswhenpreparingthewater-
calciumchloridemixture(antifreezesolutionforthecold
season):
- Pourthenecessaryamountofwaterinavesselandthen
pourincalciumchlorideuntiltheestablishedquantity
hasbeenreached.Neverpourwaterontothecalcium
chlorideasthiswouldcauseaviolentreaction.
- Onlyusethesolutionafterithascompletelycooled.To
limittheacidity,add1%ofsodainproportiontothe
calciumchlorideused.
- Afterinflatingthetyre,thoroughlyrinseanymetalparts
thatmayhavebeenwettedwiththiscorrosivesolution,
withwater.
How to deflate the tyres
– Jackupthetyreinquestion(Fig.4-50)andsetitwith
itsvalvepointingdownwards.
– Unscrewthemobileunionofthevalveandallowthe
watertodrainfromthetyre.
– Tightentherelativeunionintothevalvehousingand
placethetube(4)incontactwiththetyre.
– Blowinpressurizedairthroughtheunion(2):the
remainingwaterwilldrainthroughthetube(4).
– Removetheunion(3),replaceitwiththevalveretai-
nerandtheninflatethetyre.
NOTE - Never use ballasting systems differing from the
ones indicated above.
CAUTION: Ballasting with water and anti-freeze
solution containing calcium chloride might cause
corrosion of the parts in contact with the solution.
Indicativelayoutforwaterballasting.
1-Valvehousing.
2-Watertubeunion.
3-Specialfittingtopourinanddrainoutthewater.
4-Airbleedingtube.
WARNING: Always use suitable personal sa-
fety devices (safety gloves and shoes) when
applying or removing ballast.