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MAINTAINING YOUR M18T/MT MICRO TRUCK
Your M18T/MT is designed to be easy to work on, and should require very little maintenance to keep it at its peak performance. To keep your micro truck running at optimal
performance, you should periodically perform maintenance on the truck.
General Truck Maintenance
• Make sure all fasteners are properly tightened. Check them periodically.
• Make sure that chassis screws do not protrude from the chassis.
• For the best performance, it is very important that great care is taken to ensure the free movement of all parts.
• Clean all ball-bearings so they move very easily and freely.
• Tap or pre-thread the plastic parts when threading screws.
• Self-tapping screws cut threads into the parts when being tightened. Do not use excessive force when tightening the self-tapping screws because you may strip out the thread
in the plastic. We recommended you stop tightening a screw when you feel some resistance.
• Ask your local hobby shop for any advice. Please support your local hobby shop. We at XRAY Model Racing Cars support all local hobby dealers. Therefore we ask you, if
at all possible, to purchase XRAY products at your hobby dealer and give them your support like we do. If you have difficulty finding XRAY products, please check out www.
teamxray.com to get advice, or contact us via e-mail at [email protected], or contact the XRAY distributor in your country.
Battery Maintenance
The M18T/MT’s main battery pack is made of high-quality NiMH cells, and may be recharged up to 1000 times. We strongly recommend using a high-
quality peak-detection charger that is suitable for use with NiMH batteries. Using an inferior-quality charger may result in damage to the battery pack and
risk of injury or fi re.
The transmitter uses eight AA cells. When the batteries get weak, replace them with high-quality alkaline batteries or rechargeable batteries.
Motor Maintenance
The XRAY 370 Super Size motor is a high-performance, sealed, non-rebuildable motor. Keep the motor clean from debris by brushing it off or using
compressed air. Do not attempt to open the motor; this will render the motor inoperable. Periodically put a drop of light oil in the bushing around the output
shaft. Be careful not to overheat the motor or its performance may suffer.
Electronics Maintenance
The electronic components installed on the M18T/MT should not require any maintenance. Use a soft brush to remove any dust or debris that may
accumulate on or around the car’s components. Do not use solvents to clean the electronics of the M18T/MT.
Tire Replacement
The stock rubber tires are designed for long life and high grip. Over time and a lot of usage you may notice the tires wearing in strange patterns. If this
happens, we advise you to replace the tires with new ones. Glue a new set of tires to a new set of white rims, and install them in place of the old tires.
Bearing Maintenance
The M18T/MT contains 16 high-speed, high-quality sealed ball-bearings. We recommend that you periodically clean the bearings (using motor cleaner)
and apply a drop of light oil to ensure longevity and smoothness.
To clean and oil the bearings, you must disassemble the car and remove the bearings. Spray out the bearings using motor spray so all external and internal
debris is removed. Then apply a drop of light oil to the inside of the bearing. Reinstall the bearings.
Body Maintenance
The tough Lexan® body on the M18T/MT is designed to withstand the rigors of racing. Use a soft brush to remove dirt/dust after every run.
If your micro truck is performing less than optimally or is having problems, use the following troubleshooting information to attempt to determine the origin of the issue and
possible solutions. We also recommend consulting with your local hobby dealer if you encounter problems.
SERVO T ROUBLESHOOTING
Servo makes a grinding noise or
acts erratic
Remove the servo from the truck.
Open the case and remove the gears. Examine them for broken teeth. If broken, replace with a new gear set.
Servo jitters
Remove the servo from the truck.
Open the case and remove the gears.
Spray a zero-residue electrical cleaner into and around the potentiometer and work it in.
After the cleaner has dried, re-install the gears and close the case.
Possible damaged receiver/transmitter crystal.
Servo doesn’t center properly
Disconnect the steering rod from the left front steeringblock. Steer left and right with the transmitter several times. If the servo arm does not return to the
same neutral position each time, the servo may be damaged.
Remove the servo from the truck. Open the case and check for proper gear alignment. Next check the case top for wear. If wear is evident, replace the case.
Servo is locked in place
Remove the servo from the truck.
Open the case and check for proper gear alignment. If gears are damaged, replace the gear seta
Check the case top for wear. If wear is evident, replace the case.
Servo hums
This is normal if the servo is trying to hold position against the force of a load.
If the servo hums when no load is applied, try loosening the servo case screws 1/4 to 1/2 turn.
Servo gets hot
Check the servo wiring, it should match the receiver being used.
If the wiring is okay, the servo motor may be stalled due to a failed gear train. Remove the servo from the truck, open the case and inspect for any damage.
Wheels turn in opposite direction to
setting input
Change the servo reversing setting, and then re-adjust the steering subtrim and EPA settings.
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