Contents

			Test results
1	COMPONENT CONCERNED	ADJUSTMENT/TRANSMISSION NUT LOOSENING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	REACTION/TRANSMISSION MECHANISM ADJUSTMENT NUT	Check if the adjustment/transmission nut is loose	Go to Step 2	Adjustment nut loose	Adjust the reaction keeper nut Carry out some test manoeuvres to settle the whole system. Check if the spring is slightly compressed; if not, adjust it so that it is always in load conditions. Check the correct operation again and, if necessary, repeat the adjustment until the desired performance is obtained.
2	COMPONENT CONCERNED	HANDBRAKE LEVER EXCESSIVE TRAVEL CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	HANDBRAKE LEVER	Check if the travel is excessive, with no - or almost no - operation effort because of a wrong reaction/transmission mechanism adjustment	Go to Step 3	Excessive handbrake lever travel	Adjust the reaction keeper nut, cables, pulleys, pads, idler lever, drums. Carry out some test manoeuvres to settle the whole system. Check if the spring is slightly compressed; if not, adjust it so that it is always in load conditions. Check the correct operation again and, if necessary, repeat the adjustment until the desired performance is obtained.
3	COMPONENT CONCERNED	REACTION/TRANSMISSION MECHANISM CONNECTION KEEPER BREAKAGE/DEFORMATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	REACTION/TRANSMISSION MECHANISM CONNECTION KEEPER	Check for breakage/deformation of the reaction/transmission mechanism connection keeper or adjustment nut with damaged thread	End of diagnosis	Breakage of the reaction keeper, adjustment nut damaged	Replace the keeper, nut and block. Adjust the reaction keeper nut, cables, pulleys, pads, idler lever, drums. Carry out some test manoeuvres to settle the whole system. Check if the spring is slightly compressed; if not, adjust it so that it is always in load conditions. Check the correct operation again and, if necessary, repeat the adjustment until the desired performance is obtained.