Electric System
EL-9
Starting Division
Starter
Starting relay
Assistant start button
The assistant start button is located at the right side of cab rear support. When the engine need to be repaired
under the truck, put the ignition switch to "ON" position and make the ignition relay's contactor pull-in. Let the
transmission in idle position and join up the idle switch. Press the sub-starting button under the truck to start the
starter.
Electromagnetic Main Power Switch
Operation principle
When this switch is turned on, the current passes through the coil and the contactor closed to connect the bat-
tery cathode and chassis frame.
As soon as fuse is burnt the electromagnetic main supply switch will automatically cut off the battery nega-
tive earthed circuit. So there will be no electricity in the complete truck.
Specification
Trouble analysis
Vehicle model DFA1064DH01-985
Nominal voltage (V) 24
Nominal power (kW) 3.7
Pinion teeth 10
Pinion module 2.54/2.1167
Brake torque (N · m) 40
Brake current (A) 800
Brake voltage (V) 12
Operating voltage (V) 18~32
Operating current (A) 50
Pull-in voltage (V) 9~17
Drop-off voltage (V) 1~8
Mode
Nominal voltage Operating voltage Operating current
Main contacts current
in operation
DK238 24V 20~30V
≤ 0.5A
300A
Trouble Cause Remedy
Jamming
The electromagnetic main supply switch is
jammed
Slap the housing gently or
repair
Not working
The electromagnetic main supply switch's interior
trouble
Repair or replace
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