Zetor PROXIMA POWER Z90 2012 Operator's Manual page 20

ELECTRIC INSTALLATION
53. No additional
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
Grounded minus 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.
SAFETY INSTRUCTIONS FOR USERS
interventions
12 V =
( - ) pole
19