D439E Service Manual 3. Engine Electrical System (D439E)
127
NOTE
• Cold Cranking Ampere : It refers to the current that the battery can supply for 30 seconds with maintaining
the 7.2 V terminal voltage at a specific temperature.
• Reserve Capacity : It refers to the total time duration in which the battery can supply 25A current at a
temperature of 26.7°C with maintaining the min. terminal voltage of 10.5 V.
Pre-Heating System
Item Specification
Rated voltage 23 V
Resistance 4 Ω
Temperature increase
It takes 8±1.5 sec to reach 800℃ when DC 23 V is applied.
The temperature should be 1050±80℃ at 30 seconds after
DC 23V is applied.
Preheating plug
Heater relay fuse 127 A
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