background image

6

Air Filter

Fuel Inlet

Main Needle Valve

Idle Speed Screw

Flywheel

Clutch Bell

Crankshaft

Crankcase

Low-speed Needle

Throttle

Head (Cylinder Head)

Glowplug

Air Intake

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.

MICRO NITRO TRUCK QUICK START CHECKLIST

1. 

Read & understand all manuals & precautions 

page 2

2. 

Charge the battery packs 

page 6

3. 

Install the antenna 

page 7

4. 

Decorate the body with decals 

page 7

5. 

Fill shock absorbers with oil and install 

page 8

6. 

Install the transmitter batteries 

page 9

7. 

Check radio system & truck operation 

page 10

8. 

Check the radio range 

page 13

9. 

Install the starterbox battery 

page 13

10.  Check starterbox operation 

page 13

11.  Fill the fuel tank 

page 15

12.  Start the engine 

page 16

13.  Break in the engine 

page 17

14.  Adjust the engine 

page 17

15.  Break in the ball differentials 

page 19

15.  Drive your truck! 

page 20

16. Make 

adjustments 

page 

20

17.  Maintaining the micro nitro truck 

page 23

18.  Tune up and personalize your truck 

page 24

19. Troubleshooting 

page 

25

CHARGING BATTERIES

Before operating your micro nitro truck for the fi rst time, you need to properly charge the receiver battery pack and the starterbox battery pack.

USE THE PROPER BATTERY CHARGER

We strongly recommend using a high-quality peak-detection charger with automatic shut-off. The charger should be specifi cally designed for charging NiMH batteries used 

in the receiver pack and starterbox battery pack. Charge each pack at its recommended rate, and do not overcharge or damage or injury may result.  Carefully follow the 
manufacturer’s instructions that accompany the battery charger.

INITIAL CHARGING & CYCLING THE BATTERY PACKS

The receiver battery pack and starterbox battery pack must be cycled before fi rst-time use. When cycling the receiver battery pack for the fi rst time, carefully follow these instructions:

1. Set the charge current to 110 mA (0.11A).
2. Charge each battery pack for 14-16 hours. During charging it may happen that the charger will stop charging while the battery pack is not fully charged. In such case you 

can continue charging until the battery pack is fully charged. This may happen one or more times during charging and this issue is related to the type of charger or type of 
charging used.

3. After 14-16 hours disconnect the battery pack, even if the charger is still charging it.
4. Let the battery pack rest for 1 day.
5. After 1 day discharge the battery pack. Set the discharger to a 1.1A discharge rate, and set the discharge cut-off voltage to 4.5V for the pack (0.9V per cell).
6. Let the battery pack rest for 6 hours.

Your battery packs have now been cycled and you can use them safely.

RAPID CHARGING

After you have initially charged and run the receiver and starterbox battery packs, you can rapid charge the packs afterwards.  

Using a peak-detection charger, set each battery pack to charge at the proper rate (1.0A for receiver pack, X.XA for starterbox battery pack). Do not use higher charge currents; 

rapid charging is done at a higher current, so the battery pack may generate too much heat and explode or vent. Never leave the battery pack unattended while it is charging. If 
the battery pack becomes too hot (113°F or higher), stop charging immediately.

DISCHARGING AND STORAGE

After use, we DO NOT RECOMMEND discharging the packs completely, as this will damage the packs. You can safely recharge the packs immediately after use without any 

performance degradation. If you will be storing the packs for longer than a month, partially discharge the pack down to approximately 40% capacity.

Summary of Contents for Nitro Micro NT18MT

Page 1: ...M I C R O...

Page 2: ...cts inside rotating and moving parts as this may cause damage or serious injury as your nger hair clothes etc may get caught Be sure that your operating frequency is clear before turning on or running...

Page 3: ...c oil nitro methane etc The flammability and volatility of these elements is very high so be very careful during handling and storage of nitro fuel Keep nitro fuel away from open flame sources of heat...

Page 4: ...are subject to wear If a piston liner has worn out or if the big end conrod connection has worn you must replace these parts If the engine has broken you must check that all other moving parts are sti...

Page 5: ...e onboard electronics Battery pack high quality XRAY receiver battery pack provides power to the onboard electronics Engine high performance NT18 0 8cc micro nitro engine with 2 shoe clutch provides p...

Page 6: ...AL CHARGING CYCLING THE BATTERY PACKS The receiver battery pack and starterbox battery pack must be cycled before rst time use When cycling the receiver battery pack for the rst time carefully follow...

Page 7: ...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 fr...

Page 8: ...CKS INSTALL ALL SHOCKS front and rear INITIAL POSITIONS Re install shock collar and spring from each shock front and rear Unthread the shock cap from the shock body and remove the shock membrane Threa...

Page 9: ...n battery pack in the truck Use only fresh alkaline or rechargeable batteries all of the same brand Make sure that rechargeable batteries are fully charged according to the manufacturer s instructions...

Page 10: ...ing Wheel Controls the left right steering of the truck XRAY RADIO SYSTEM Power Switch Turns the transmitter on or off Steering D R Dual Rate Adjusts the steering sensitivity External Charging Jack Re...

Page 11: ...tteries Receiver The radio receiver inside your truck that receives signals from the transmitter and relays them to the steering servo and throttle servo Servo Small electronic motor unit in your truc...

Page 12: ...tune the steering position if the truck does not drive straight with the steering wheel in the neutral position centered 5 Adjust the Steering Trim optional Use the throttle trim knob on the transmit...

Page 13: ...while battery is still warm After use battery retains heat Wait until it cools down before charging Disconnect and remove the battery pack if you plan to not use the start box for a period of time e...

Page 14: ...all times Follow the instructions carefully The information in this manual will help to prevent injuries to users and other as well as protecting objects from damage GRAPHIC INDICATIONS The following...

Page 15: ...wdriver A small flat blade screwdriver is required for adjusting the carburetor We recommend using high quality tools such as those offered by HUDY HANDLING NITRO FUEL Use a fuel bottle to put fuel in...

Page 16: ...er and with the carburetor in idle position this primes the fuel lines and allows the fuel to reach the engine Then apply the glowplug starter and start the engine The engine should fire up immediatel...

Page 17: ...the flywheel to move the piston to the bottom of the cylinder BDC 7 Run the engine for several more heat cycles 5 8 minutes up to 2 3 throttle then complete cool down 5 8 minutes up to 3 4 throttle th...

Page 18: ...he right RPM Once you are satisfied that you have achieved reliable carburetor settings you are ready to put your truck on the track STAGE 2 SETTING THE IDLE SPEED Take the truck off the ground and op...

Page 19: ...onds 2 Tighten both front and rear diffs slightly by 1 16 turn 3 Run the truck again for 2 minutes at throttle 4 Tighten both front and rear diffs slightly by 1 16 turn The differential should still t...

Page 20: ...the engine running Idling Adjustment Screw Use to adjust the idle setting of the carburetor Do not allow carburetor to close to less than 1mm Adjust the servo horn mounting position for the carbureto...

Page 21: ...ou should use piston hole sizes to suit the track conditions rather than alter the oil viscosity Use only the genuine premium quality silicone shock oils The shock oils are availabe in 50ml size in th...

Page 22: ...s Less preload thinner less spacers lower ride height may give higher corner speed on high bite tracks better suited to smooth tracks More preload thicker more spacers higher ride height less prone to...

Page 23: ...r engine unnecessarily as this may upset precision fits such as piston cylinder and crank pin connecting rod assembly If it is necessary to clean your engine completely such as after a crash remove on...

Page 24: ...l with Bearings 385001 Alu Adj Ball Differential Hard Coated Set 940610 High Speed Ball Bearing 6x10x3 Rubber Sealed 2 Rear Alu Oil Shock Absorbers 2 389622 Micro Monster Truck Tire Insert Skew 4 4 38...

Page 25: ...st the carburetor settings if the weather has significantly changed since the last time you ran the engine The engine s compression may be low due to wear This will make the engine difficult to start...

Page 26: ...387542 382650 382250 930610 930610 905214 386205 382500 382090 905260 386210 906258 389170 386410 906208 906258 389103 389170 905262 389150 386400 901303 907258 386400 356400 386400 901303 388950 9610...

Page 27: ...6 388820 388840 610001 681801 388710 901304 681201 681401 681851 960025 907257 910255 970024 906258 964053 964054 388540 388531 388550 388560 388580 388516 930407 965032 930812 385002 383090 385062 93...

Page 28: ...O Box 103 911 50 Tren n Slovakia Europe Phone 421 32 7440180 info teamxray com XRAY MODEL RACING CARS P O Box 103 911 50 Tren n Slovakia Europe Phone 421 32 7440180 info teamxray com XRAY MODEL RACING...

Reviews: