V1.0
RUNGU Electric Juggernaut LE User Manual
Copyright 2018 Standard Bearer Machines, LLC
40
Troubleshooting
Problem: Why won’t my
Rungu turn on?
You turn the key
switch to the left and the Cycle Analyst computer doesn’t turn on; turning the throttle
fails to activate the rear wheel.
Solution:
1.
Check that the battery is fully charged. Use a voltmeter and test the output on the charging
terminals. If the voltage shows more than 64V, continue to the next step. If the voltage reads
less than 64V, follow the charging directions to recharge the battery.
2.
Make sure that the battery case is pushed all the way in to the battery and controller case. If
the battery case is unlocked and ajar from the battery and controller case, the battery case may
be disconnected from the controller. Make sure the battery is correctly seated and locked in
place.
3.
There is a loose wire or connection. Remove the bolts holding the controller in place at the
bottom of the controller case. Access the controller; disconnect and reconnect all the
connections made with the controller. Be careful to return the wiring to the same position
before remounting the controller.
Warning: Pinching or severing a cable or connection can result in a short circuit that can lead to
malfunction or fire. If you are not comfortable working on the internal components of controller case,
take the Rungu to a qualified bike mechanic for repair.
Problem: I drove my Rungu until it went completely dead and now it will not charge.
This is a problem that occurs when you fully deplete the battery. The BMS on the battery protects the
battery from discharging any further and shuts itself off.
Solution:
Disconnect your battery from the controller case by unlocking the battery case and pulling the battery
case from the controller case at leas half an inch. Push the battery case back in to reconnect and “reset”
the battery. Once you have done this, the battery will turn on, but will still be depleted. Recharge the
battery fully before riding.
Problem: I cannot get my battery to charge or my charger is not working
Many users do not realize the importance of properly charging your battery. Please look at the section in
the manual about charging your battery. Most common solution is blown fuse in the charger
Solution:
You have a fuse(s) blown in the charger. All chargers have 2 fuses, one located in the front screw cap
and the other located in the rear where the power plug wire goes into. Unplug the charger from the
power source and the battery case to replace the fuses.
Problem: The Rungu feels sluggish on hills
If you are not pedaling along with the motor at any power setting, you are relying completely on the
motor only to get you up the hill. NEVER fully rely on the motor for power when climbing, riding in sand,
or riding in deep snow. Pedal along to assist the motor. This will increase range and prolong the life of
the components. If you are experiencing the sluggishness when you pedal along with the motor, you
may have the power output set too low for the off-road environment.
