19
SAFETY INSTRUCTIONS FOR USERS 
ELECTRIC INSTALLATION  
53. No additional interventions 
into the electric installation (con-
nection of other electric appli-
ances) are permissible due to its 
possible overloading! 
 
54. The values of the electric installation 
are:  
Nominal voltage   12 V = 
Grounded minus pole   ( - ) pole 
Using starting trucks or auxiliary power 
supplies with a different voltage or polar-
ity may cause serious failures of the trac-
tor.  
55. When handling the battery you must 
pay increased attention and avoid short-
circuits.  The tractors are equipped with 
a battery disconnector. Switch it off when 
handling the battery.  
56. The tractors must not be operated 
with a disconnected battery as this may 
lead to a serious failure of the tractor.