Earth the 12V cathode (-), and only use 12V
assistant battery.
When the battery exhausts, start engine with
assistant battery.
1) Connect assistant battery
Stop engine which is equipped with assistant
battery.
Connect one end of red wire ① w i th battery
anode (+), and connect the other end with
assistant battery anode (+).
Connect one end of black wire ② w i th catho de
of assistant battery, and connect the other end
with excavator framework as earthing
connection. When connecting with excavator
framework, keep as far as possible away from the battery connection wire end.
Start engine.
2) Separate assistant battery
First, break black cathode (-) wire ② away from framework.
Disjoin the other end of black cathode (-) wire ② from assi stant battery.
Disjoin red anode (+) wire ① from assi stant battery.
Disjoin red anode (+) wire ① from machi ne battery.
3.4 TRAVEL CONTROL
3.4.1 CONTROL TRAVEL WITH PEDAL
1) Straight travel: Treadle two pedals forward at the
same time. (pedal 1 and 2)
2) Straight back: Treadle two pedals backward at the
same time. (pedal 3 and 4)
Connect assistant battery
(Black)
Assistant battery
Machine battery
FIG.3-7