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Gearing Compatibility Chart:
The chart below shows recommended
gear combination ranges for your model.
Spur Gear
46
50
54
11
-
-
4.91*
12
-
-
4.50*
13
-
-
4.15*
14
-
3.57*
3.86*
15
-
3.33*
3.60*
16
-
3.13*
3.38*
17
-
2.94*
3.18*
18
2.56*
2.78*
3.00*
19
2.42
2.63*
-
20
2.30
2.50
-
21
2.19
2.38
-
22
2.09
2.27
-
23
2.00
-
-
24
1.92
-
-
25
1.87
-
-
26
1.77
-
-
*4s/6s/8s LiPo
2s 7600mAh + recommended
3s 6400mAh + recommended
4s 6700mAh + recommended
Stock gearing
Included optional gearing
Usable gearing range
High speed, hard surfaces only
Not recommended
Does not t
24 • X-MAXX
BASIC TUNING ADJUSTMENTS
Once you become familiar with driving your model, you might need
to make adjustments for better driving performance.
Adjusting Gear Mesh
Incorrect gear mesh is the most common cause of stripped spur
gears. X-Maxx makes improper gear mesh virtually impossible. A
pin system helps set the motor in the proper place according to the
pinion and spur gear that are selected.
To access the pin system, remove the four motor mount screws from
the bottom of the chassis and lift o the motor. Next, remove the
two 3x10mm screws that secure the gear cover and remove the gear
cover. This will expose the pins. Be sure not to lose the pins that go
between the motor and the chassis.
Select the desired gearing from the
pin location chart. Replace the spur
and pinion gears as needed. When
installing the motor, install the pins
into their proper locations based
on the gearing that is chosen. The
two pins on the bottom help to lock
the motor into the proper place for
correct gear mesh. Secure the motor
in place with four screws inserted
from the bottom of the chassis.
Note: Should you choose to do so, you can also set the gear mesh
manually without the pins. With the pins removed, use the four
4x16mm button-head cap screws on the bottom to set gear mesh.
Loosen the four 4x16mm button-head cap screws. Cut a narrow
strip of notebook paper and run it into the gear mesh. Slide the
motor and pinion gear into the spur gear. Tighten the four 4x16mm
button-head cap screws, and then remove the strip of paper. You
should be able to run a fresh strip of paper through the gears
without binding them.
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Centering Your Servo
If you have removed the servo horn from your X-Maxx's steering
servo, or the servo has been removed for service or cleaning, the
servo must be re-centered prior to installation of the servo horn or
installation of the servo.
1. Remove the servo horn from the steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2. The white wire on
the servo lead is positioned toward the receiver's LED.
3. Turn the transmitter power switch on. Make certain the
transmitter's batteries are not depleted.
4. Turn o TSM (see page 17).
3x10mm
CS
5. Turn the transmitter's steering trim knob to the center "0" position.
6. Disconnect both the blue and white motor connectors (see page
12) to prevent the motor from turning during the next steps.
Connect a fresh battery pack to the speed control and turn on the
ESC (see page 18). The servo's output shaft will automatically jump
to its center position.
7. Install the servo horn onto the servo
output shaft. With the servo laying
down at, the servo horn should be
installed vertically so that it is in the
centered position.
8. Check servo operation by turning the steering wheel back and
forth to ensure that the mechanism has been centered properly
and you have equal throw in both directions. Use the transmitter's
steering trim knob to ne-tune the position of the servo horn so
the model tracks straight when the steering wheel is at neutral.
4x16mm
BCS
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