Idiomas disponibles
Idiomas disponibles
10. Shift from second to first and verify
that the servo arm is moving away
from the transmission. If necessary,
switch the reversing switch for
the shift channel (Ch. 3 on Traxxas
TQ-3 radios). Verify that in first
gear, the servo arm is oriented
at approximately "2 o-clock" as
shown (S).
11. Insert the shift linkage into the servo arm and servo saver. Install
the supplied 3x10mm button-head screw, using caution to prevent
damage from over-tightening.
12. The result should be a slightly spring bound positive engagement.
Important: Ensure proper installation and engagement.
13. Shift to second gear on the transmitter. Roll the truck a few inches
so that the shift mechanism can fully engage.
14. Check the "pre-load" on the shift spring. You should feel a light
resistance on the servo horn.
15. Shift to first gear on the transmitter. Again, roll the truck a few
inches to fully engage the shift mechanism in the transmission.
16. Check the "pre-load" on the shift spring. It should be about the same
as it was in second gear (but in the other direction).
17. If the spring pre-load does not feel similar in first and second gear,
remove the servo horn and reinstall, starting with step 6, and make
the following adjustment:
a. If the spring was tight in second gear, but loose in first gear, install
the notched servo saver sleeve one tooth clockwise from the
original position (see step 7).
b. If the spring was tight in first gear, but loose in second gear, install
the notched servo saver sleeve one position counterclockwise
from the original position (See step 7).
Shift Servo Assembly
5668
2575
3x6 BCS
2575
5668
3x6 BCS
2575
3x6 BCS
2065
FRONT
5668
2576
3x8 BCS
2576
3x8 BCS
5668
3932
3x6 FCS
2552
3x12 CCS
2552
3x12 CCS
Traxxas, 1100 Klein Road, Plano, TX 75074, Phone: 972-265-8000, Fax: 972-265-8011, e-mail: [email protected]
S
1st Gear Position
1st Gear Position
5116
5x11 BB
3973 (close ratio)
3974 (wide ratio)
3991X
5668
5692
3985X
6x8x0.5 TW
Selecting the Wide Ratio or Close Ratio Gear Set:
• Close Ratio (18/21), Part #3973: Ideal for most environments. The new
first gear provides more torque and lower top speed for climbing and
driving through mud, grass, and snow, but when shifted into second
provides the same top speed as the stock single speed. With this
set, first gear features a "close" numerical gear ratio to second gear,
which has the same ratio as the stock single speed gear ratio. Ideal for
almost seamless shifting into second for quicker acceleration, this set
is recommended for most conditions.
• Wide Ratio (13/26), Part #3974: This gear set provides the most
extreme first gear ratio for maximum torque and low speed control.
This is best for rock crawling, thick mud and grass, or when speed in
first gear is not a concern. The numerical gear ratio value between
first and second gear is further from each other in this set, allowing
this "wide" ratio gear set the lowest first gear ratio. Since second gear
is unchanged, top speed remains the same as the stock single speed.
Gear Ratio Calculations:
2nd Gear (Same as single speed):
Spur / Pinion x 5.22 = Final Drive Ratio
1st Gear (Close Ratio):
Spur / Pinion x 8.43 = Final Drive Ratio
1st Gear (Wide Ratio):
Spur / Pinion x 14.45 = Final Drive Ratio
Example using stock 68/19 gearing:
2nd Gear (Same as single speed):
68 / 19 x 5.22 = 18.7:1 Final Drive Ratio
1st Gear (Close Ratio):
68 / 19 x 8.43 = 30.2:1 Final Drive Ratio
1st Gear (Wide Ratio):
68 / 19 x 14.45 = 51.7:1 Final Drive Ratio
5116
5x11 BB
5352X
5116
5x11 BB
3992
3965
2.5x8 CS
5116
5x11 BB
3991X
3965
2.5x8 CS
3976
5116
5x11 BB
5117
6x12 BB
3985X
5117
6x12 BB
If you have questions or need technical assistance, call Traxxas at
TRAXXAS . c om
3996X
3989X
5117
6x12 BB
3985X
3969
1-888-TRAXXAS
(1-888-872-9927) (U.S. residents only)
3991X
3215
2.5x6 CS
5157
3991X
3985X
5117
6x12 BB
3985X
