Sam Horizon, Руководство оператора, Страница: 38 / 73

37
3-6
TYRES - CUSTOMER / OPERATOR Cont..........
Tyre Specifications
The sprayer has options of tyre equipment to maximise the operation of the vehicle for given needs and soil or
climate considerations.
The handbook lists the parameters of the fitments, for load speed and pressure.
Tyre Capacities
On the sidewall of the tyre is a rating of the load the tyre will carry at a given speed
For example 142A8 (refer to Page 30 - Load Index Table), 142 corresponds to 2650 Kgs
There is a world standard for carrying capacity, with a main capacity in the description of the size.
There is also an additional marking, usually in a circle called the unique point to give a variation in operational
capacity. For example an A8 speed rating is in the normal description, but a B rating is given by the unique
point (see below - Speed Index Table).
Increase and Decrease in Load Capacity
In addition to the unique point, there are variations in capacity of tractor tyres.
There is a bonus in load by going slower, the variations are listed in options.
Normal drive radial tyres have a maximum capacity rated at 1.6bar and 40kph.
Narrow tyres have a maximum capacity rated at 2.4, 3.2 or 3.6bar and 40kph
Latest technology - Flexible sidewall tyres, consult data sheets, SAM or your tyre specialist
Cleaning Wheels and Tyres
If a TFR (traffic film remover) is used, it must not be applied neat, and must be diluted to the manufacturer's
recommendations – even so, sometimes these can be quite harsh especially when used with a large high
pressure industrial pressure washer or steam cleaner.
Steam cleaners and high pressure washing systems should not be directly used on tyres, cleaners can cause
premature ageing of tyres and the very high heat that can be generated with modern steam cleaners can
soften and lift paint.
Storage
Outside storage will age the tyres, so indoor storage when not in use is advised. If stored outside, cover them
or store upright to prevent water pooling in them – if stored upright they should be restrained from falling.
Fitment
Wheel and tyre units are heavy so changing fitment involves moving and lifting heavy weights. This is a 2
person operation, using levers to assist in raising the wheels or using specific lifting cradles. Jacking of the
vehicle should also be supported by axle stands where a change of wheels occurs.
TYRES - OPERATING INFORMATION