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For installation and operation of the servo make sure that the servo is not blocked.
Attention! Please absolutely observe the following sequence when installing the servo
1. Connect the receiver to the power supply.
2. Turn the trimmer (Fig. 3, (11) in the centre position.
3. Connect the servo to the receiver.
4. Install servo lever. During installation the steering must be in the centre position.
6 Control of caterpillar vehicles
Caterpillar vehicles are driven as a rule by two motors. During this one motor drives the left side
and the second motor drives the right side. If both motors turn at the same speed in the same
direction, the model moves straight ahead. If the motors turn with different speeds, the model
moves in a curve. If the motors turn in opposite directions, the model turns in place.
These types of models can be controlled in two ways:
Individual control of the motors
Separate controls of both motors each via one joystick: Left motor on M1 (left joystick), right
motor on M3 (right joystick). Each motor is controlled individually via one joystick. Disadvantage:
To move precisely straight ahead, both joysticks must be deflected identically wide. That is
somewhat difficult.
Intelligent caterpillar control
If the caterpillar function is activated on the receiver by briefly pushing the "Select"
button, a caterpillar, whose motors are connected on M1 and M2, can be controlled
very simply and comfortably via the left joystick of the transmitter. Both motors are si-
multaneously controlled corresponding to the position of the joysticks, so that the
model moves in the desired direction. See also Chapter 4 "Receiver" – Select button.
