e) Advanced Tuning
Setting the Differentials
The differentials of the vehicle are filled with grease. The viscosity of the grease blocks the differential, which is suitable for most terrains and conditions.
By exchanging the grease for highly viscose silicone differential oil the blocking effect can be modified. The higher the viscosity, the higher the blocking effect.
• If the model swerves in bends when loaded, you can loosen the rear differential or lock the front one.
• If the model understeers when loaded, lock the rear differential or loosen the front differential.
You can select between silicone oil with a viscosity of 1000 (small blocking effect) up to 50000 (high locking effect).
Attention!
We only recommend that the transmission grease is only exchanged by experienced users who know their models and have adequate technical
skills for taking out and disassembling the differentials.
Ackermann Effect
To adjust the progressivity of the steering angle of the wheel on the inside of the curve (Ackermann effect), the steering links can be reset to other steering points
in the steering arms (see chapter 9 d: Setting of the Camber, Pos 2).
f) Automatic Two-Speed Transmission
Function and setting of two-speed transmission
Two pinions with a different number of teeth are tightly screwed onto the clutch bell. The two main pinions on the centrifugal clutch are connected with each other
via a one-way bearing. The shift point depends on the revolutions. In the first rate of speed the engine speed is transmitted from the small pinion on the clutch
bell onto the bigger toothed wheel on the drive section, the toothed wheel for the second rate of speed runs idle. At high speeds the centrifugal force causes the
lever of the centrifugal clutch to be pulled outward towards a spring resistance and the attachment on the toothed wheel grips into the second rate of speed. The
engine speed is now transmitted via the larger pinion of the clutch bell to the smaller toothed wheel in the drive section, the toothed wheel in the first rate of speed
is running via the one-way bearing. The shift point of the two-speed transmission can be adjusted.
Setting the Switching Moment on the 2-Gear Drive
The spring resistance of the centrifugal clutch, and with it the switch
point, can be adjusted with a headless screw.
Put down the model so that the wheels can turn freely.
Turn the main pinions on the two-speed transmission until the clearance
in the cover of the two-speed transmission is visible. You can access the
headless screw from the left.
Turning in the screw: The spring preload is increased.
Higher revolutions are needed so that the attachment to grips. The trans-
mission switches later.
Unscrewing the screw: The spring preload is lowered.
Lower revolutions are needed so that the attachment grips. The trans-
mission switches earlier.
If you are a beginner and are facing problems with the driving speed, we
recommend that you postpone the switch point until the model does not
switch into second gear at all.
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