The machine consists of a base plate with a vibration element and an upper part cushioned from the base plate, which is designed as both an engine plate and water tank (F 70A / F 90A). The cushioning between the base plate and the upper part consists of rubber dampers. The power is transmitted from the petrol engine to the vibration element via a V-beltwhich can be adjusted with a belt tensioner. The engine V-belt pulley is fitted with an integrated centrifugal clutch, which allows the engine to be started and run idle without the vibrator being connected.
On account of the direction of rotation and the position of the vibration element at the front end of the base plate, the vibrator moves forwards under its own power. The petrol engine is well protected against damage in connection with use and transportation by a sturdy protective frame with a protective panel on the top. Trans- port wheels are standard (not on the F 70A and FR85)
F 70A / F 90A
The water tank holds 12 litres (F 70A) or 21 litres (F 90A). The water cock is located at the back of the tank, easily accessible for the operator. The sprinkler system pours water on the base plate and prevents asphalt from adhering to it.
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