To increase precision and steering authority in X-Maxx, install the metal
gear 2085X digital steering servo. The accessory servo includes a stiffer servo
saver spring and steel steering linkage to turn the high torque strength into
precise control. For installation you will just need 2mm and 2.5mm
hex tools. Power tools are OK when used at a low torque setting.
To install the unit, first remove the body. Remove the eight screws from the
top of the chassis. Remove the screws from the steering linkage. Remove the
four front screws on the center skid plate and disconnect the front module.
Remove the four rear screws from the center skid plate and remove the
component. Remove the servo horn.
Remove the wire clamp and receiver box cover.
Disconnect the servo from the channel one (CH1) slot in the receiver and remove the wire.
Take out the three screws securing the servo to the chassis and remove the
stock servo. Take your new 2085X servo and put it in place, routing the wire
through the chassis. Be careful not to pinch the wire, and secure the servo with
the original three screws. Pull the wire through the wire clamp and into the
receiver box. Plug the connector into the channel one slot in the receiver.
Make sure all wires run flat across the foam pads without overlapping. Close the wire
clamp and receiver box--see the related video for more information on how to
properly seal a receiver box. Now power on the transmitter and vehicle and
center the steering trim using the dial on the transmitter. Take the new steel
steering linkage and attach it to the new servo horn.
With the servo centered re-attach the servo horn with the arm pointing up and
the steering linkage on top.
Re-install the center skid plate with the four rear screws. Take out the four
screws to remove the bell crank support.
Remove the screw to release the servo saver spring. Install the new stiffer
servo saver spring.
Re-install the bellcrank support.
Ensure that the center driveshaft is securely placed in the chassis and
re-attach the front module. Re-install the chassis hardware--four screws on the
bottom and eight on top. Now reattach the steering linkage and you're done.
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