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b) Setting of tooth backlash
Control the tooth backlash at regular intervals. The tooth backlash has to be adjusted at the latest when the electric
motor, the motor pinion or the main pinion is exchanged.
To do so, loosen the two fastening screws on the electric motor so that you can move the motor with slight pressure in
the direction of the main pinion.
The motor pinion and the main pinion now engage with each other without tolerance.
Insert a thin paper strip between the motor pinion and the main pinion and rotate the main pinion manually in such a
way that the paper strip is pulled in between both pinions.
The pressure of the paper pushes back the electric motor by the required degree. Now tighten the attachment screws
of the motor again.
When you turn back the main pinion afterwards so that the paper strip can be taken out again, both pinions will have
the necessary distance to each other.
c) Changing the crystal
There may be no other transmitter/models with the same frequency in the range of the transmitter, as these transmitters
interfere with each other. As a result, the models no longer respond correctly to the transmitter commands. If there are
other model vehicles in your range, talk to the other operators about the frequencies they use.
Only use suitable accessory crystals for the transmitter and the receiver.
Prior to a quartz change, first turn off the vehicle and then the transmitter.
Transmitter crystals are generally marked with "T" or "TX", receiver crystals with "R" or "RX". Do not mix up these
crystals. Otherwise the vehicle will no longer function correctly.
