Troubleshooting guide, Tuning, adjusting & maintaining your vehicle, Service/repair – Losi LOSB0128 User Manual
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EN
Troubleshooting Guide
Problem
Possible Cause
solution
Vehicle does not operate
Battery not charged or plugged in
Charge battery/plug in
ESC switch not “On”
Turn on ESC switch
Transmitter not “On” or low battery
Turn on/replace batteries
Motor runs but rear wheels
do not rotate
Pinion not meshing with spur gear
Adjust pinion/spur mesh
Pinion spinning on motor shaft
Tighten pinion gear setscrew on motor shaft flat spot
Transmission gears stripped
Replace transmission gears
Drive pin broken
Check and replace drive pin
Steering does not work
Servo plug not in receiver properly
Make sure the steering servo plug is connected to the receiver steering channel,
noting proper polarity
Servo gears or motor damaged
Replace or repair servo
Will not turn one direction
Servo gears damaged
Replace or repair servo
Motor does not run
Motor wire solder joint is damaged
Resolder the motor wire with the proper equipment
Motor wire broken
Repair or replace as needed
ESC damaged
Contact Horizon Hobby Product Support
ESC gets hot
Motor over-geared
Use smaller pinion or larger spur gear
Driveline bound up
Check wheels and transmission for binding
Poor run time and/or sluggish
acceleration
Battery pack not fully charged
Recharge battery
Charger not allowing full charge
Try another charger
Driveline bound up
Check wheels, transmission for binding
Poor range and/or glitching
Transmitter batteries low
Check and replace
Vehicle battery low
Recharge battery
Loose plugs or wires
Check all wire connections and plugs
Tuning, adjusting & maintaining Your Vehicle
• Examine your vehicle on a regular basis.
• Use a brush to remove dirt and dust.
• Look for damage to the suspension arms and other molded parts.
• Re-glue the tires to the wheels, if necessary.
• Use suitable tools to tighten fasteners.
• Make sure the camber and steering linkages are not bent. Replace any bent
linkages.
• Adjust the Toe and Camber settings, if necessary.
• Remove the shocks and inspect them for damage. Rebuild the shocks if oil is
leaking.
• Inspect electronics and batteries for exposed wires. Repair exposed wires with
shrink-wrap or replace the wire.
• Make sure the ESC and receiver are secure on the chassis. Replace the
double-sided tape, if necessary.
• Power on the transmitter. If the green LED is dim or off, replace the AA
batteries in your transmitter.
• Check the spur gear for wear.
service/Repair
Radio/Speed Control & Motor
If any problems other than those covered in the troubleshooting section arise,
please call the appropriate electronics service department. They will be able to
give the problem additional specific attention and provide instructions for the
solution.
Maintenance
If any questions other than those covered in the troubleshooting or maintenance
sections arise, please call the appropriate Horizon product support department.
Cleaning
Performance can be hindered if dirt gets in any of the moving suspension parts.
Use compressed air, a soft paintbrush, or a toothbrush to remove dust or dirt.
Avoid using solvents or chemicals as they can actually wash dirt into the bearings
or moving parts, as well as cause damage to the electronics.