XTM Racing Mammoth, Operation Manual

Page 1: ... Nitro Monster Truck is not intended for persons under 12 years of age unless closely supervised by an adult The XTM Racing Mammoth RTR Nitro Monster Truck is distributed exclusively by Global Hobby Distributors 18480 Bandilier Circle Fountain Valley CA 92708 All contents copyright 2003 Global Hobby Distributors Version V1 0 September 2003 Kit Product 145615 XTM Racing 24 7 Engine w Tuned Pipe Hea...

Page 2: ...oof therefore do not drive through water wet grass mud or snow Because your model is operated by radio control it is important to make sure you always are using fresh and or fully charged batteries Never allow the batteries to run low or you could lose control of the model If your model becomes stuck allow the engine to idle then retrieve your model by hand To prevent excessive r p m s from damagi...

Page 3: ...lace the engine s glow plug The Magnum Long 4 Way Wrench works great Do I Need to Purchase Extra Glow Plugs Yes Even though your Mammoth RTR Nitro Monster Truck comes with a glow plug already installed in the engine glow plugs wear out especially during the break in period therefore it s a good idea to have a couple of spares handy The glow plug can make a big difference in how your engine perform...

Page 4: ... MONSTER TRUCK Antenna Transmits the signal from the transmitter to the receiver The antenna should be completely extended during use Battery Cover This cover houses the 8 AA Alkaline batteries that power the transmitter Crystal This is the frequency crystal of the transmitter You can change crystals in both the transmitter and the receiver in the chassis so that you and your friends can drive at ...

Page 5: ...ses This fuel tank includes a fuel pressure nipple that connects to the tuned pipe to pressurize the fuel system and also features a quick flip type lid for fast refueling Pull Start Handle Used to start the engine in place of an electric starter Receiver Antenna Receives the signals from the transmitter The antenna should always be extended during use and never cut shorter Shock Each shock is oil...

Page 6: ...transmitter Remove the plastic battery cover from the bottom of the transmitter Install 8 AA Alkaline batteries into the battery tray double checking to make sure that the polarity is correct Reinstall the battery cover and set the transmitter aside for now Open the battery box cover by pushing on the molded tab at the back of the battery box cover and lifting up on the back of the cover The batte...

Page 7: ...t the antenna wire with glass cleaner The glass cleaner will make the antenna slide easily through the tube Push the end of the antenna tube firmly into the molded hole in the top of the receiver box cover where the antenna exits IMPORTANT Leave the excess antenna hanging from the top of the tube Under no circumstances should you cut or shorten the antenna Slide the transmitter s on off switch for...

Page 8: ... is operating properly and prevent any chance of a runaway model the radio system should be range checked before the first run of the day and or after a crash To range check the radio system do the following With the transmitter and receiver turned on extend the transmitter antenna completely IMPORTANT Remember to always turn on the transmitter first then turn on the receiver With the Mammoth RTR ...

Page 9: ...Nitro Monster Truck without the air filter installed on the carburetor Idle Stop Screw The idle stop screw is preset from the factory and should not require adjustment The idle stop screw adjusts the closure of the throttle barrel We recommend that the idle stop screw be adjusted so that the carburetor barrel stays open about 1 16 Turning the screw clockwise will cause the barrel to stay open more...

Page 10: ...he way out or damage to the pull starter will occur Use a couple of short pulls about 7 or 8 inches long Using your glow plug wrench verify that the glow plug is installed in the cylinder head and tight If it s not already preinstalled install it using one copper gasket If at any time the pull starter becomes very tight or difficult to pull STOP The engine has become flooded and the excess fuel mu...

Page 11: ...ve the glow starter from the glow plug IMPORTANT If the engine does not start after a dozen pulls refer to the trouble shooting guide starting on page 16 before continuing To stop the engine carefully pinch the fuel line with your fingers until the engine stops Make sure to pinch the fuel pick up line and not the fuel pressure line The fuel pick up line is the one connected to the carburetor WARNI...

Page 12: ...tely At this point the engine should hold a good setting on the high speed needle valve and you can begin to fine tune the needle valve settings to increase performance IMPORTANT It is of the utmost importance that the engine never be leaned out too much When running the engine you should always be able to see a trail of white smoke coming from the tuned pipe If you can t stop the engine immediate...

Page 13: ...degrees toe in on the front and rear for overall best 4WD driveability on most surfaces Adding more than 3 degrees of toe in or toe out will result in excessive loss of speed and erratic handling IMPORTANT For more precise toe in adjustments use the R P M Toe in Gauge part 708049 The toe angle is the angle of both front tires or rear tires to each other when viewed from above Toe in is when the fr...

Page 14: ...If you run your truck off road in a smooth high traction area use stiffer springs to reduce body roll and weight shift If the area where you run your truck is very bumpy you might consider using softer springs to help absorb the bumps If the area is bumpy and you use harder springs the truck will have a tendency to jump and hop around The shock springs included with the Mammoth RTR Nitro Monster T...

Page 15: ...r gear assembly until the you can see the small grub screw through the milled access hole in the clutch housing Once the small grub screw is visible use a 1 5mm hex wrench to adjust the grub screw To make the transmission shift at a higher speed turn the grub screw clockwise 1 8th of a turn To make the transmission shift at a lower speed turn the grub screw counterclockwise 1 8th of a turn WARNING...

Page 16: ...se erratic engine operation After you have finished using the engine for the day remove the glow plug and squirt several drops of a high quality after run oil into the cylinder Reinstall the glow plug and crank the engine over a couple of times without the glow starter attached to distribute the oil This will prevent corrosion inside the engine Never leave unused fuel in the fuel tank for more tha...

Page 17: ...ine not fully broken in D Allow engine further break in time P12 5 Engine vibrates excessively A Engine and or engine mounts loose A Tighten all engine and engine mounting bolts 6 Engine does not idle down A Idle stop screw out of adjustment A Adjust idle stop screw to factory setting P10 B Engine has developed an air leak B Check and tighten all engine screws C One or more carburetor O rings dama...

Page 18: ...18 Visit our website at http xtm globalhobby com or for Customer Service at http globalservices globalhobby com ...

Page 19: ...19 Need help or have any questions Call us at 1 714 963 0329 or send us an Email at service globalhobby net ...

Page 20: ...n of this request implies permission for Global Services to service your vehicle at our discretion Include a method of payment for any service charges Send the unit to us by United Parcel Service Federal Express or by Insured Mail Postage is non refundable Send your package to IMPORTANT WARRANTY INFORMATION PLEASE READ Your XTM Racing Mammoth RTR Nitro Monster Truck is warranted against manufactur...