144
ELECTRIC INSTALLATION 
E605 
 E606a 
ALTERNATOR 
The alternator is accessible after opening 
of the hood.  Proper charging is signalled 
by the red indicator on the combined 
dashboard instrument, which must go off 
after starting.   
The burnt 12V / 2W indicator 
lamp must be immediately re-
placed with a lamp of the same 
parameters.  The indicator is part 
of the exciting circuit of the alter-
nator. If the indicator lamp is 
burnt, the battery is not charged! 
During repairs of the tractor by 
electric welding all the conductors 
must be disconnected from the 
alternator.  Protect the “+B” con-
ductor from a short-circuit.  
 
ALTERNATOR MAINTENANCE 
When washing and cleaning the tractor protect the alternator from penetration 
of water or diesel fuel! 
During operation the alternator must not be disconnected from the battery! 
The alternator must never be put in operation without load, i.e. with the con-
ductor disconnected from the “+B” terminal and the “+D” terminal connected. 
Such a condition may induce an extremely high voltage when the engine 
speed is increased, which would destroy the semiconductors! 
Never short-circuit any alternator terminal during operation! 
The alternator must not be additionally excited.  Such an intervention would 
damage the semiconductors! 
Ensure perfect electric connection of the alternator terminals and proper 
grounding of the alternator! 
The polarity of the alternator must not be reversed even for a short time!