F) Conversion To Automatic Two-Speed Transmission - Reely Ironbreaker R32 Bedienungsanleitung

f) Conversion to Automatic Two-Speed Transmission (optional)
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 speed. 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.
Mounting of two-speed transmission
When mounting the two-speed transmission, apart from exchanging the centre differential (main pinion), the clutch bell also has to be exchanged for a clutch bell
with two pinions. Remove the RC mounting plate and disassemble the main pinion and the centre differential as described above.
Changing of clutch bell
• Loosen the E-ring from the engine shaft and pull the clutch bell off towards the front.
• Take out the ball bearing and insert it in the clutch bell of the two-speed transmission. Slide the clutch bell with the two pinions onto the engine shaft and secure
it with the washers and the hexagon socket head screw.
• Place the two-speed transmission between the cardan shaft bearing case and the brake holder and screw the RC mounting plate together again:
• Check the alignment and the tooth backlash of the drive again.
If you are changing your vehicle's gear transmission ratio (as a tuning measure) and only want to exchange the clutch bell for a clutch bell with a
different number of teeth, then the RC mounting plate and the main pinion (centre differential) do not need to be disassembled.
In this case it is sufficient to loosen the four screws of the engine mount and to push the engine in a way so that the clutch bell can be pulled off.
Setting the switching moment on the two-gear transmission (optional)
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 transmission switches
later.
Unscrewing the screw: The spring preload is lowered. Lower revolutions
are needed so that the attachment grips. The transmission 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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