(olvo gets approval spec
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)LVO HAS made specification changes throughout its model rige so as to come into line with type approval legislation.
rwo line EEC braking system ll now become standard for all ctive units and rig ids intended • drawbar operation.
V1GM-type spring brakes with )chanical wind-off replace the xi type and the number of les equipped remains unaled, although for F6 tractive its and drawbar rigids the tra units on the drive axle are longer needed. Test connecns are fitted throughout the stem to allow easy diagnosis faults.
3rake width is increased from 7mm (7in) to 203mm (81n) on F7 6x4 tipper and tanker assis. A larger air tank feeds ?rear circuit on this model and all four-axle rigids. • ll models built to meet type proval will be fitted with a VIN plate in place of the manufacturer's plate, which will give a visual check on the vehicle's design limit.
The last two digits in the Volvo model designation represent the maximum design gross vehicle weight. Each new gvw leads to a different model type and individual vehicle certificate.
In obtaining EEC brake approvals there has been a rationalisation of axle design weights. Tractor rear axles have been uprated from 10.16 tonnes to 10.5 tonnes in anticipation of some overall weight increase.
The F616's tractive unit is type approved at 15.2 tonnes with a 5.2-tonne front-axle and a 10tonne drive-axle while for the F7, F10 and F12 front-axle, design weights are reduced from 6.61 tonnes to 6.5 tonnes.