Lombardini CHD series - Governor Components; Camshaft gear - Speed governor counter weights; Speed governor counter springs; Frame with idling speed governor spring

- 50 - Workshop Manual LDW CHD _ cod. 1.5302.345 - 6° ed_rev. 05
4
103
102
101
100
Camshaft gear - Speed governor counter weights
Components:
1 Camshaft gear
2 Governor weights
3 Governor weight support
4 Governor weight pin
The governor weights 2 are housed inside the camshaft gear 1.
The weights 2 can be of two types: light or heavy, depending on
the speed rate and the type of application.
Heavy weights for engines set to run at low rpm (1500 - 1800 rpm
and agricultural applications), light weights for engines set to run
at high rpm (2200 - 3000 rpm).
Disassembly / Reassembly
Frame with idling speed governor spring
Engines for applications requiring a certain power capacity at
low speeds are tted with the frame 2 complete with the idling
speed spring which allows satsifying the above described
requirements without the engine tending to stop.
Components:
1 Rocker arm with speed governor springs.
2 Frame for idling speed spring
Speed governor counter springs
Besides the weights used according to the speed rate and application
type, different types of springs with different features are used as well.
Components:
1 Camshaft gear
6 Speed governor springs
Components:
1 Limiting device / torque gearing device
2 Maximum rpm adjustment screw
3 Minimum rpm adjustment screw
4 Camshaft gear
5 Governor weight
6 Speed governor spring
Forenginesusedongeneratingsetsitispreferabletotasingle
spring 6 to act against the heavy governor weights to avoid hunting
with variations in the load and to achieve a more constant frequency
over time.