Volvo ECS - Page 159

159
Bogie switch -
later type
ECS Gen. 2
Light
< 30 kph - FLASH
> 30 kph - ON
OFF
< 30 kph - FLASH
> 30 kph - ON
OFF
The bogie switch is used to fully raise/lower the lifting axle of a
2 axle bogie, or to alter the weight distribution between the two
axles.
The switch may have 2 or 3 positions according to the
suspension variant. Position 3 is normally spring return.
Switch position Result
0 - upper section Axle lifted - laden max. 14950kg
pressed Drive axle load increased by
30%
1 - centre position Axle lowered - optimised
traction
*
2 - lower section 1st. press - extra traction
**
pressed < 30 kph
2nd. press - back to optimised
traction
*/** See following pages