Steering Linkage - DeAGNOSTINI MODEL SPACE Red Bull Racing RB7 Manual

Radio controlled, build it yourself, nitro engine

Hide thumbs Also See for Red Bull Racing RB7:

Build manual (32 pages)

Table Of Contents

Table of Contents

Red Bull Racing RB7: Step by Step

When correctly adjusted, the horn of the throttle/brake servo will be in the

'neutral' position, that is, parallel with the long axis of your car (indicated

by the dotted red line in the photograph). The position of the servo pinion

must not be changed.

Check that the knobs below them, the two trim controls,

are in their middle positions. If not, adjust them accordingly

(see upper photograph on page 433). Now push the power

switch on your model to the 'ON' position. (This is the order

of events you should always follow when you run your car

in the future.)

What happens next is likely to be that the servos twitch

and whirr, and move the servo horns a little way from the

neutral positions in which they were aligned (see lower

photo on page 433). If that doesn't happen, it may be the

case that you were lucky, and the servos were already

zeroed. To set a servo horn back to its neutral position if it

has moved after switching on, first switch off the

transmitter and the car's main switch, then remove the

horn's retaining screw using a size 2 Phillips screwdriver.

Carefully pull the horn, with the linkages attached to it,

upwards and off the servo pinion, but take care not to

change the position of the pinion, otherwise the servo

motor will lose its zero position.

Now check that the horn is in the neutral position. In the

case of the throttle/brake servo this means you must

position the horn so that it is parallel to the long axis of

The horn of the steering servo also forms the upper part of the servo saver

unit. In its neutral position, the component must be aligned so that the arm

of the servo horn (red arrow) is at a right angle to the long axis of the car

(dotted red line).

your car (see photograph above left). In this position, push

it carefully back onto the pinion.

If the horn of the steering servo has lost its neutral

position while zeroing, proceed as follows. Undo the fixing

screw and remove the servo saver (consisting of upper and

lower parts and a C-ring) from the pinion. In order not to

change the position of the pinion, hold it in place with a

small flathead screwdriver below the base of the servo

saver. Then adjust the servo saver so that the horn points at

a right angle to the long axis of the model (see photograph

above right).