OPERATION 3.7 ELECTRICAL EQUIPMENT IN CAB BASE
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3.7.3 COMPONENTS OF ELECTRICAL PREHEATING SYSTEM IN CAB
BASE
WARNING
The cab base contains high voltage electrical appliances.
Access to the cab base for authorized service staff only.
General
The preheating system is a special equipment and can be
installed in the factory or locally at site. Power supply to the pre-
heating system is provided by an external power source.
The following systems are equipped with heaters:
● Engine cooling system
● Engine lubricating system
● Hydraulic system (main and suction oil reservoir)
● PTO’s (pump distributor gears)
● Storage batteries
EMARK
The auxiliary heater unit in the cab base (6), illust. Z25358
and the battery charger (3) are also connected to the external
power supply.
Legend for illustration Z25358
(1) Main switch board (1X1) for the preheating systems,
located in the cab base
(2) Main switch (1Q1) for all system heaters
(3) Battery charger (E55)
(4) Fuse box with circuit breaker F76 - 125A for battery
charger
(5) Key switch (S153) for battery charger (3)
(6) Heater unit for cab base
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