With applications for the automotive sector the regulator spring (C fig. 45) is replaced by a device (plunger barrel) that only enables a constant speed at the minimum and maximum rpm rating.
Components:
1 Nut
2 Idle speed spring
3 Max. speed spring
4 Case
5 Register
6 Spring ring
7 Actuation rod
Note: There are six maximum springs in a different colours, to distinguish them from the six respective adjustments.
Red color for…………………….3000 giri/1′
No color…………………………..3200 giri/1′
Black……………………………….3600 giri/1′
Orange……………………………3750 giri/1′
White………………………………4200 giri/1′
Green……………………………..4300 giri/1′.
Brown……………………………..4500 giri/1′