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Section 10: Troubleshooting Guide
This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with your Baja
Bullet electric truck. Most problems encountered can be solved by carefully following the problem-cause-solution sections. If you
cannot solve the problem using this troubleshooting guide, please feel free to contact us at the address, phone number or email address
shown on page # 2 of these instructions.
Hitec Lynx Sport Radio System
PROBLEM
CAUSE
SOLUTION
1) Radio system does not operate
A) Transmitter batteries and/or motor battery low
A) Replace transmitter batteries and/or charge motor battery
B) Transmitter batteries are installed incorrectly
B) Check that the polarity of the batteries is correct
C) Motor battery connector is loose
C) Check that motor battery connector is plugged in and tight
2) Operating range is short
A) Transmitter antenna is retracted
A) Extend transmitter antenna completely
B) Receiver antenna is not extended
B) Extend receiver antenna completely
C) Receiver antenna is cut
C) Return receiver to Hitec/RCD for repair
D) Transmitter batteries and/or motor battery low
D) Replace transmitter batteries and/or charge motor battery
3) Steering servo does not operate
A) Transmitter and/or receiver batteries low
A) Replace transmitter and/or receiver batteries
normally
B) Servo gear stripped or otherwise damaged
B) Return to Hitec/RCD for repair
4) When the truck is running, radio
A) Receiver crystal loose
A) Remove and reinstall the receiver crystal
system operates erratically
B) Motor battery connector is loose
B) Check that motor battery connector is tight
C) Damage to receiver after a crash
C) Return to Hitec/RCD for repair
XTM Racing Baja Bullet Electric Truck Chassis and Electronic Speed Control
PROBLEM
CAUSE
SOLUTION
1) Truck pulls to one side
A) Steering trim out of adjustment
A) Readjust trim to center both wheels
B) Toe-in not equal
B) Readjust the toe-in to 1 - 2 degrees.
C) Wheel on one side is hanging or has damaged bearing
C) Remove wheel and clean bearing. Replace if necessary
2) Truck does not "go"
A) Stripped spur gear
A) Replace spur gear
B) Slipper clutch set too loose
B) Tighten slipper clutch
C) Slipper clutch worn
C) Replace slipper clutch fiber disc
D) ESC is in "Protection Mode"
D) Refer to section 5: Electronic Speed Control
E) Pinion gear spinning on motor shaft
E) Tighten and/or replace pinion gear grub screw
3) Suspension not smooth or free
A) One or more shocks sticking
A) Clean and/or rebuild the affected shock
B) Bent shock shaft
B) Rebuild affected shock
C) Bent or otherwise damaged hinge pin
C) Replace hinge pin
4) Shocks leaking oil
A) Shock seals worn
A) Replace shock seals
B) Bent shock shaft
B) Rebuild affected shock
5) ESC does not work
A) Motor battery not charged
A) Charge motor battery completely
B) Motor battery not plugged into ESC
B) Plug motor battery firmly into ESC
C) ESC not turned on
C) Turn ESC on by sliding the switch mounted on the truck
D) ESC not plugged into proper slot in the receiver
D) Plug ESC into slot # 2, not the slot labeled "batt"
E) ESC is in "Protection Mode"
E) Refer to Section 5: Electronic Speed Control
6) Motor does not work
A) ESC is in "Protection Mode"
A) Refer to Section 5: Electronic Speed Control
B) Motor wires loose or broken
B) Replace and/or repair motor wires
C) Motor battery not fully charged
C) Charge motor battery completely
7) Spur gear strips easily
A) Slipper clutch too tight
A) Loosen slipper clutch
B) Pinion/spur gear mesh out of alignment
B) Reset the gear mesh
