Manual - Great Hobbies

asic TUNING ADJUSTMENTS2. Set the steering trim on the transmitter to neutral (zero).3. Position the Jato so it is level and youcan view the installed steering servofrom the front.4. Verify that the servo horn is positionedso the arrow inscribed on the face pointsstraight up (see illustration).5. If it is not, remove the servo horn (by removing the 3x6mm screw),rotate it to the correct angle, (arrow pointing up), and reinstall.The steering servo linkmust be assembled asshown in the illustrationto the right. Note that therod end on one end ofthe steering link is rotated45 degrees compared theother rod end. The exactcenter-to-center distance betweenthe hollow balls is 43.1mm.When the steering link is installedin the Jato, the edge of the leftbellcrank (servo saver arm) shouldbe parallel to the centerline of thevehicle (see illustration). If it is notparallel, adjust the length of thesteering link.BRAKE SETUP & ADJUSTMENTJato is equipped with an adjustable disc brake. The brake is preset at thefactory and should not require attention. As the brake material wears,future adjustments may be necessary.Brake Shoulder Screw AdjustmentThe two shoulder bolts that are used to securethe brake pads to the transmission housingmay need to be adjusted periodically as thebrake material wears down. They should betightened so an approximate .5mm (.020”) gapexists between the disc and the brake pad (onthe transmission side). Adjust the brake bySteering Link Length Template(actual size)SteeringLink43.1mm.5mmgapParallelServoSaverArmfirst pushing the outer brake pad firmly against the inner pad with yourfinger, sandwiching the brake disc between the brake calipers. Tightenthe brake shoulder bolts until they just barely touch the brake pads. Donot over tighten these fasteners or you may damage the brake disc orpads. Loosen each of the shoulder bolts by 1 turn.Brake Linkage AdjustmentWhen correctly adjusted, the brake linkagespring should barely touch the rod guidewhen the servo is in neutral position (radiosystem on, closed throttle). This will ensureno brake drag during operation of thevehicle. The brake adjustment knob canbe turned counter clockwise away from theBrakeLinkageSpringLess Brakespring for less braking power if desired. Do not adjust the knob to applypressure against the spring while the servo is in the neutral position. Thiswill induce brake drag and cause undesirable handling.Brake Pad Wear and ReplacementDuring normal use, the brake disc wears at a slow rate. If the disc wearsdown to about 1.8mm in thickness, it should be replaced. Any morewear than this could cause damage to the brake parts and improperoperation of the brake system.TRANSMISSION TUNINGAdjusting the Slipper ClutchYour Jato is equipped with anadjustable Torque Control slipper clutch. The slipper clutch isintegrated into the main spur gearon the transmission (see page 6).The slipper clutch is adjusted byloosening or tightening the springloadedlocknut on the slipper shaft.Use the supplied 4-way wrench. Totighten or loosen the slipper nut,hold the spur gear to prevent it from turning and turn the adjustmentnut. Turn the adjustment nut clockwise to tighten (less slippage) andcounter-clockwise to loosen (more slippage). The slipper clutch hastwo functions:1. Limiting the engine’s torque output to the wheels to preventwheelspin on low-traction surfaces and uncontrolled wheelies onhigh-traction surfaces.Optional servo horns areavailable separately for usewith non-Traxxas servos.JATO 3.3 • 33