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4.6 Daily Maintenance
(1) Check the wear condition of the contactor. Change it if necessary. Check the contactor
every three months.
(2) Check the pedals or manual inching switch; measure the voltage drop between the
inching switch ends; there is no resistance when the inching switch is closed; there is
ringing sound when release. Check every three months.
(3) Check the main circuit, connecting cable among battery, converter and motor. Make
sure the well insulation condition of the cables and circuits are tightly connected. Check it
every three months.
(4) Check the mechanical moving of the pedal and knob; check if the spring is out of
shape; check if the spring of the potentiometer can reach to the max. length or set length.
Check it every three months.
(5) Check the mechanical moving of the contactor every three months; if there is any
damage or condition affecting the safety, contact with ZAPI dealer.
Notice:
After the controller is installed, the wheels of the truck shall be lifted (off the ground)
for test, so that even if there is a connection error, there will be no danger.
After the battery switch is disconnected, there is a certain voltage remains in the filter
capacitor for a period of time. If the inverter needs to be repaired at this time, the
battery must be cut off first, and then the 10-100 ohm resistance shall be connected to
the positive and negative poles of the inverter to short-circuit the residual voltage on
the capacitor.
Do not connect the controller to the battery with different nominal voltage shown in
the nameplate. If the voltage is high, it will cause power unit failure, and if the
voltage is low, the logic card will not work.
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