Blackzon BL540000, Instruction Manual, Page: 7 / 20

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We strongly recommend that you check and maintain the vehicle after use.
Please read and understand the list below which will facilitate you.
-Disconnect and remove the batteries from the car and the radio controller when not in use.
-Do not leave the rechargeable battery pack uncharged for a long time.
-Check if there is any obvious damage after each use.
-If the vehicle runs noisily, check if there is any broken or slipped gear and pinion, and check
if there is a clogged drive train.
-Check if the wheels are well tightened after use.
-Check if there are any loose screws in the chassis.
-Check if there are not frayed, damaged, loosened wires and connectors.
-Check if the steering servo is in good order. It may wear out over time and require replacement.
-Check if there are no objects getting twisted in the drive train. Clean them if necessary.
-Check the motor and motor wires after use. Never attempt to re-assemble the motor.
-Clean the car body and chassis with a soft lint-free cloth.
-Store the vehicle in a clean, cool and dry place out of children's reach.
A.The vehicle does not work at all:
1) Check to ensure that radio controller and car are switched on.
2) Check if there are damaged parts/wires/connectors, repair or replace if necessary.
3) Car battery is flat. Charge the battery pack.
B.The vehicle runs slowly:
1) Car battery is flat. Charge the battery pack.
2) Check if the vehicle is properly geared and no dirty or stripped gears are found, and make
sure the reliable gear mesh for motor pinion and the spur gear.
3) Check if there is something troubling to the moving parts , and clean them immediately.
C. The throttle works but not the steering:
1) Check if the servo feels jammed, and try centering it gently if it is the case.
2) Check if the servo link is loose or the servo breaks. Repair or replace if possible.
D. It steers, but throttle is uncontrollable:
1) Check if there are damaged parts in the overall drive train.
2) Check the battery power both for radio controller and the car.
E. The vehicle runs noisily:
1) Check gear mesh between spur gear and motor pinion.
2) Check if there are stripped and/or dirty gears.
3) Check if there are some parts getting damaged in the overall drive train.
F. The vehicle is found one direction's steering travel is not same to the other.
Please tune the Steering Trim until Steering Center Point is fixed.
G. Not able to charge the batteries:
Check if either the charger or the batteries is damaged, or batteries are over-discharged.
Maintenance
Troubleshooting