Losi LOSA0887 Manual - Manual (Page 57)

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ATTACHING THE RECEIVER to the center brace with self adhesive hook and pile material (like Velcro brand) can help absorb the shock
and vibration that is transmitted through the chassis by the engine. This type of material can be found at most hobby shops and yardage stores.
This can also help prevent glitching and increase the life of your receiver. Simply attach the hook material to the center brace with the self-
adhesive backing on the back on the material. Attach the pile (fuzzy) material to the back of the receiver in the same way. When you position
the receiver on the hook portion, it grabs on to the fuzzy side and holds the receiver in place. This is the method most of the team racers prefer.
The receiver cover on the XXX-NT Sport offers a great deal of protection from the elements. If you plan on running in very wet conditions
you may want to seal your receiver. Placing the receiver in a plastic bag or balloon works well. The object is to completely cover all openings
and crystal socket to keep water or fuel out. Any liquid that enters the receiver can cause radio failure.
THE CLUTCH BEARINGS included in the kit contain a special lubricant. If the clutch bearings need to be replaced it is important to only
replace them with the Team Losi clutch bearings #A-6906. If a different bearing is used, or if you oil the standard clutch bearings, the lubricant
can migrate into the clutch. If lubricant comes into contact with the clutch it will slip and not function properly. If necessary, you may clean the
bearings with model fuel, and lubricate with one drop of Mobile1 TM .
If you clean your truck with a silicone product like Armour-All, be careful to keep it out of the cluch and the fuel tank. This will cause the
clutch to slip and/or the motor to run poorly.
THE BRAKE ROTOR on your XXX-NT should be inspected after every 2-3 hours of running. When the rotor wears to half the original
thickness, the rotor should be replaced. Attach the new rotor in accordance with the instructions.
THE GEAR BOX, or transmission, is the heart of every race car. The XXX-NT transmission is no exception. Although the XXX-NT
transmission is very efficient, there are certain adjustments that are necessary for top performance. The differential is the most important.
Several greases were tested for use in the differential and the one that we found to work the best is included in the kit. This grease protects the
moving parts extremely well, while at the same time allowing the diff to operate smoothly. Since this differential is designed to be "self aligning",
it is extremely important to take your time while assembling it to make sure that all of the parts are properly seated into the correct locations.
ADJUSTING THE DIFFERENTIAL. This may be a little complicated at first. If you do this as you read this tip, the procedure should be
fairly simple. Tighten the slipper nut all the way down. Now, with the wheels installed, and the tires glued in place, hold the right rear tire in your
right hand. While holding the tire, place your index finger and thumb over the spur gear. Now try to turn the left rear tire while holding the right
rear tire and the spur gear. It should be VERY difficult to turn the left rear tire. If it turns easily, the diff is too loose. Tighten it by lining up the
slot in the diff screw with the slot in the outdrive and placing the small Allen wrench through both slots. Now slowly turn the left rear tire
clockwise about 1/8 turn. As long as the diff screw was held in place with the Allen wrench, you have just tightened your diff. Pretty easy, huh?
Check the adjustment and continue tightening the diff, a little at a time, until the left rear tire can’t be turned easily while holding the spur gear
and the right rear tire. Be careful not to tighten the diff too much! Once the diff is adjusted, it should still operate freely and feel smooth. If the
diff screw starts to get tight before the diff is close to being adjusted properly, the diff should be disassembled and checked for proper assembly.
Once your diff has been adjusted by hand, start your truck and place it on an asphalt area. Give the truck full throttle from a stop. The diff
should not slip. If it does, tighten the diff slightly until it no longer slips. After the differential has been adjusted, adjust the slipper as noted
below.
Remember! The diff was not designed to operate as a slipper. The truck should never be run while the diff is slipping . Doing so can damage
the diff balls and drive rings. Always make sure that the slipper will slip before the differential!
If your diff becomes "gritty" feeling, it should be rebuilt. Disassembling, cleaning and re-lubricating the parts in accordance with the
instructions will usually be sufficient. The carbide diff balls that come in the kit should rarely need replacing. If, after cleaning, the diff still feels
"gritty" the following parts should be replaced in the order listed: Differential washers #A-2903, thrust bearing assembly #A-3071, carbide diff
balls #A-6951. When rebuilding your diff it's a good idea to always replace the lock nut. This will help keep the diff from loosening as you
continue to drive your XXX-NT.
SLIPPER ADJUSTMENTS should be made after the diff is properly adjusted. The slipper setting that the manual had you assemble your
truck with should be reasonably close to correct. If you have just adjusted you diff, and the slipper nut is tightened all the way, adjust your
slipper back to its original adjustment by loosening the lock nut three full turns (360 o x 3).
CHANGING THE GEARS on your XXX-NT is a very simple process. There are several different clutch bell gears available for the XXX-
NT. When changing to a different size gear, you will need to re-set the gear mesh. To adjust the gear mesh, loosen the four screws securing the
engine mounts to the chassis and reposition the engine. When the desired gear mesh is achieved, tighten all four screws. In conditions where
more torque (bottom end) is desired, the 18-tooth clutch bell can be replaced with the 17-tooth clutch bell. The gear mesh will need to be
readjusted by loosening the four screws that hold the engine in place as mentioned above.
FUEL for the gas engines is available at any full service hobby shop. It is highly recommended that you use a fuel specially blended for R/
C cars like O’Donnell, Blue Thunder or Trinity. Avoid using model airplane/helicopter fuel as the quantity and type of lubricant may not meet
the extreme needs of R/C cars. We have found that no more than 20% nitro content is needed for optimum performance.
CAMBER in the front end of the truck is not really adjusted much. We suggest one to two degrees of negative camber at the front measured
at ride height. A general rule of thumb is that more negative camber will help the truck go through bumps in turns a little more consistently. Less