Xray Nitro Micro NT18MT Instruction Manual
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Xray Nitro Micro NT18MT Instruction Manual

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Summary of Contents for Xray Nitro Micro NT18MT

  • Page 1 ®...

  • Page 2: Safety Precautions

    By purchasing any item produced by XRAY, the buyer expressly warrants that he/she is in compliance with all applicable federal, state and local laws and regulation regarding the purchase, ownership and use of the item. The buyer expressly agrees to indemnify and hold harmless XRAY for all claims resulting directly or indirectly from the purchase, ownership or use of the product.
  • Page 3 WARRANTY XRAY guarantees this model kit to be free from defects in both material and workmanship within 30 days of purchase. The total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does not cover any components damaged by use or modification or as a result of wear. Part or parts missing from this kit must be reported within 30 days of purchase.
  • Page 4 Any use of the product for other than its specific intended use will automatically void this warranty. Use only authentic XRAY spare parts, use of any other products will void this warranty. Claims must be accompanied by a dated proof of purchase (registered receipt, credit card invoice, etc.).
  • Page 5 • Throttle servo – high-quality XRAY servo provides smooth, strong throttle/brake control • Receiver – high-quality XRAY radio receiver receives signals from transmitter and controls the steering and throttle servos • Switch – on/off switch for powering the onboard electronics •...

  • Page 6: Table Of Contents

    This section illustrates the parts of the NT18 engine, and also describes fuel, glowplug, and air filter that you will use in the operation of this nitro-powered engine. Air Filter Glowplug Head (Cylinder Head) Air Intake Fuel Inlet Main Needle Valve Throttle Idle Speed Screw Low-speed Needle...

  • Page 7: Install The Antenna

    • You are responsible for the proper use of this battery pack and any damage that may occur due to its use or misuse. XRAY is not liable for any injury, damage, or harm caused to any person or property arising from the use or misuse of their products.
  • Page 8 FILLING AND INSTALLING THE SHOCK ABSORBERS Re-install each shock absorber, fi ll each shock absorber with the supplied shock oil, and install on the micro nitro truck. RE-INSTALLING THE SHOCKS Remove clips Re-install all shocks Re-install shock collar and (front and rear) spring from each shock (front Unthread the shock cap from and rear)

  • Page 9: Install The Transmitter Batteries

    INSTALLING THE TRANSMITTER BATTERIES Your XT1 Transmitter uses eight AA batteries. The battery tray is located at the base of the transmitter. 1. Remove the battery cover (bottom of transmitter) and remove the battery tray. 2. Install eight (8) AA alkaline batteries into the battery holder. Pay close attention to the correct direction of the positive (+) and negative (-) ends of the batteries as marked in the tray.
  • Page 10 XRAY RADIO SYSTEM Battery Indicator Throttle Reverse Transmitter Antenna Steering Wheel Transmitter Crystal Steering Reverse Steering Trim Steering D/R (Dual Rate) Power Switch Throttle Trim External Charging Jack Throttle Trigger Battery Cover XT1 TRANSMITTER CONTROLS Power Switch Transmitter Antenna Turns the transmitter on or off.

  • Page 11: Check The Radio Range

    RADIO SYSTEM TERMINOLOGY It is recommended that you use only authentic XRAY crystal sets, and to Take some time to familiarize yourself with these radio system terms that are used throughout this manual. change both the transmitter and receiver crystal at the same time.
  • Page 12 3. Check the Steering Operation Turn the transmitter steering wheel left then right to NEUTRAL NEUTRAL NEUTRAL check if the front wheels move correctly. The amount LEFT RIGHT LEFT RIGHT of steering varies according to the steering wheel RIGHT LEFT movement.
  • Page 13 Place the truck on the box so that the fl ywheel of the engine matched up with factory for the XRAY micro nitro truck. Tighten or loosen the screw as shown the starter wheel. If the truck does not fi t the back-stop properly, you can easily to set an earlier or later engagement adjust them in any direction.
  • Page 14 Your micro nitro truck comes with the high-performance NT18 0.8cc nitro-powered engine. Developed for highest performance and excellent reliability, this engine represents the perfect combination of manufacturing quality and race-winning experience. The XRAY NT18 0.8cc engine has the following features: • uses standard model car fuel •...
  • Page 15 We recommending using only the XRAY-supplied 2-piece a substantial impact on overall performance and reliability. exhaust system for best performance. We strongly recommend glowplugs by XRAY. Glowplugs are consumables and the life of plug depends on several factors and manners of use.

  • Page 16: Safety Information

    STARTING THE ENGINE This section describes proper starting techniques and some troubleshooting information. Safety Information Keep loose objects such as shirt sleeves, neckties, and scarves away from the spinning tires, flywheel, and gears. Be careful not to drop utensils such as screwdrivers and pencils into the spinning tires, flywheel, and gears.
  • Page 17 BREAKING IN THE MICRO NITRO TRUCK ENGINE The micro nitro truck nitro engine requires careful break-in the first time the engine is used to allow the internal parts to achieve proper operating clearances. This is especially true of the piston/cylinder, crankshaft, and connecting rod (conrod). Pay close attention during the initial break-in period; this process is very important to achieve the best engine performance, reliability, and lifespan.
  • Page 18 MAIN NEEDLE ADJUSTMENT When the main needle is properly adjusted, the engine immediately responds to the throttle operation with clean, hard acceleration without hesitation. To check if the engine is running at a proper setting, pinch the fuel line to the carburetor and observe the results: •...

  • Page 19: Break In The Ball Differentials

    BREAKING IN THE BALL DIFFERENTIALS Please note that the factory pre-assembled ball differential is pre-built but is NOT tightened. To enjoy long life and smooth performance of the differential, you need to break in both front and rear differentials properly. You will need to run the truck several times for a short time, and each time tighten both differentials a small amount. DIFFERENTIAL SETTING To tighten the differentials, remove the front/rear upper arms as described below, and use a Phillips screwdriver to tighten the diff adjustment screw.
  • Page 20 DRIVING THE MICRO NITRO TRUCK After you have broken in and adjusted the engine… and broken in the ball differentials… it’s time to drive your micro nitro truck and have some fun! Here are some things to keep in mind when driving your micro nitro truck: •...
  • Page 21 · increases chance of bottoming out when landing if used with “thinner” oil · increases chassis roll if used with “thinner” oils 388181 XRAY Spring Front + Rear (4+4) - Set M18MT - SOFT 388191 XRAY Spring Front + Rear - Set M18T - SOFT-MEDIUM ·...
  • Page 22 SHOCK MOUNTING POSITION You can change the shock mounting position by leaning the shocks at different angles, and also moving the shock closer or further from the centerline of the truck. You accomplish this by moving the shock top and bottom mounts to different locations on the shock towers and lower arms Shock position Characteristics REPLACE PHOTO...

  • Page 23: Maintaining The Micro Nitro Truck

    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.
  • Page 24 XRAY AUTHENTIC OPTION PARTS Tuning your micro nitro truck can help to better the truck’s performance, durability, or looks. XRAY offers high-performance option parts to enable you to fine-tune your micro nitro truck. # 382095 # 383095 # 385301 Alu Shock Tower Rear - 7075 T6 (4mm)

  • Page 25: Troubleshooting

    T ROUBLESHOOTING If your micro nitro 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 TROUBLESHOOTING If your micro nitro 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.
  • Page 26 EXPLODED VIEW 901303 907258 901303 386400 961022 386400 388950 905262 389150 901303 356400 386400 388110 965015 389170 387542 389103 388160 386410 388110 388080 front (short) 388110 388110 388191 NT18T front (short) 906208 388166 388181 NT18MT front (short) 906258 388110 386210 388110 rear (long) 388110...
  • Page 27 382089 389400 905264 905208 383090 387564 387563 960025 385002 383150 385002 385062 930812 930407 385095 930025 930020 385035 907270 981208 901303 384040 385062 385002 385300 982260 382650 384120 383240 381210 901325 382200 386410 383120 387542 382650 387563 905210 387564 905260 384130 905208 905212...
  • Page 28 XRAY MODEL RACING CARS XRAY MODEL RACING CARS XRAY MODEL RACING CARS XRAY MODEL RACING CARS P.O.Box 103, P.O.Box 103, P.O.Box 103, P.O.Box 103, 911 50 Trenčín 911 50 Trenčín 911 50 Trenčín 911 50 Trenčín Slovakia, Europe Slovakia, Europe...

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Nitro micro nt18t

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