DEADBAND OF GOVERNOR IS THE RANGE OF SPEED, ONLY AFTER WHICH THE GOVERNOR STARTS RESPONDING. IN OTHER WORDS WE CAN SAY THAT;
DEADBAND IS INVERSELY PROPORTIONAL TO SENSITIVITY
THERE SHOULD BE A LIMITED PERCENTAGE OF DEADBAND TO AVOID HUNTING OF GOVERNOR AND FOR STABLE OPERATION. BUT TOO HIGH DEADBAND CAN MAKE GOVERNOR ACTION SLUGGISH.
TO REDUCE GOVERNOR DEADBAND, FOLLOWING STEPS CAN BE TAKEN :-
- INCREASE THE R.P.M OF THE GOVERNOR BY GEARING ARRANGEMENT PROVIDED INSIDE THE GOVERNOR.
- USE OF LESS VISCOUS OIL.
- COMPENSATING NEEDLE CAN BE ADJUSTED.
- AIR IN THE SYSTEM MUST BE PURGED.
- LINKAGES TO BE GREASED.
- USE OF CONICAL SPRING.