FOREWORD
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a. Turn on the switch, put the gear to position N; keep front and rear wheel off the
ground , and then roll the front wheel to see if the rear wheel is moving together with it
or if it is rotatable.
b. After the actions above being done, and the wheels are rotatable, please check the
electricity with multimeter, if has no electricity, please check the fuse.
2. Check if the rear differential is working.
a. Check the sound. When the switch is turned on, the magneto valve will make s
sound ‘TA’ to show that it is working and the rear wheel won’t be able to rotatable at
the same direction.
b. If no sound is made, check if the controller of magnetic valve has a output of 12V
electricity, and check if the magnetic valve has a input of 12V electricity, if it has the
input, it means the valve doesn't work, please change for a new one ; if not , please
check if the input end of controller has a input, if it has, change for a new controller, if
not , check the fuse.