E-Revo Two-Speed Instructions
Note: This kit requires a 3-channel transmitter, not included
(TQi transmitter available separately as Traxxas part #6514).
Remove Transmission From Vehicle:
1. Remove the upper gear cover from the transmission by removing
the 3x8mm button head screw with a 2mm hex wrench.
2. Remove the motors from the transmission. Using a 3mm hex wrench,
remove the rear motor and finned mount assembly as a unit, and
remove the front motor by removing the two 3x6mm cap screws
with a 2.5mm hex wrench.
3. Using a 2mm hex wrench, unscrew
the M4x15 screw pins from the
output yokes (A), and remove
the drive shafts from the
transmission. Gain access to the
rear driveshaft by using a 2mm
hex wrench to remove the rear
driveshaft access cover.
4. Using a 2.5mm hex wrench,
unscrew the four 4x12mm
button-head screws securing
the transmission and remove
the transmission from the
chassis (B).
Install Two-Speed Kit Into
Transmission:
1. Using a 2mm hex wrench, separate the
transmission case halves by removing the six
3x12 countersunk screws (C).
2. Remove the main output shaft (D1) and remove
its stock gear (D2).
3. Install the selector disc onto the main output shaft.
Install two 6x12 bearings into each
drive gear, then sandwich the drive
gears on either side (E). Note the
orientation of each gear as shown.
Slide the supplied white nylon
spacer onto one end of the shaft,
and the grey PTFE-coated
washer on the bearing side of
the other end. Note: Each
output gear features a
shallow side and a deep side.
The deep side of each output gear faces the
selector disc (F).
4. Insert the selector fork (shaft towards the
front) into the selector disc and reinstall the
completed assembly into the transmission in
the orientation shown (F). Note: It is imperative
that the end of the assembly
with the white spacer be
inserted into the back
half (spur gear side) of the
transmission first.
5. Insert a 5x11mm ball
bearing into the shaft
support and case half as shown (G).
6. Locate the desired wide ratio (13/26) or
close ratio (18/21) gear set supplied with
this kit (H; see reverse side for tips on
selecting wide or close ratio gearing).
7. Remove the black spacer from the
transmission input shaft (top shaft) and
replace with the selected wide or close
ratio gear (I).
Traxxas, 1100 Klein Road, Plano, TX 75074, Phone: 972-265-8000, Fax: 972-265-8011, e-mail: support@Traxxas.com
A
B
C
D1
D2
E
F
G
I
8. Locate the steel 1st gear
idler gear, and insert it into
the case support (J). Install
the matching wide or close
ratio gear onto the end of
the idler gear as shown (K).
9. Remove the blue plug
from the case's shifter port in the rear half.
Line up the shafts and carefully reinstall the
rear case half to the front half (L), allowing
the shifter fork rod to insert through its
port. Reinstall the six 3x12mm countersunk
screws into the case halves to complete the
transmission assembly.
10. Reinstall the transmission. Installation is
the reverse of removal. CAUTION: Use care during transmission
installation to prevent crushing and damaging the servo wires.
11. Reinstall the motors; remember to reset your spur gear/pinion mesh
as described in the 5605 Owners Manual.
Install Shift Servo and Linkage:
1. Insert the servo saver into the shift fork,
and install the servo saver assembly onto
the transmission, as shown using the 3x6
flathead screw and a 2.5mm hex wrench (M).
2. Install the shift servo mount into the chassis
as shown using two 3x6mm button-head
screws (N).
3. Install the servo into
the servo mount as
shown using two
3x6mm button-
head screws (O).
4. Remove the
receiver cover by
removing the two 3x10mm button-head
screws. Remove the wire clamp by removing
the two 2.5x8mm cap screws. Lift the
receiver cover to the side.
5. Route the shift servo lead through the
water resistant receiver box and into
channel 3 of the Traxxas receiver (P). Note:
Take a moment to inspect the receiver box
"Deep" side
O-ring and foam seals. Maintain the water
"Shallow" side
tight seal by replacing damaged seals and
lubricating the foam with a small bead of
silicone grease. (Traxxas part #1647).
6. Bundle excess wire inside the receiver box,
and apply a small bead of silicone grease
(Traxxas part #1647) to the wire clamp (Q). Install the wire clamp and
H
tighten the two 2.5x8mm cap screws securely.
7. Make sure the O-ring is properly seated into the groove in the
receiver box so that the cover will not pinch it or damage it in any
way. Install the cover and carefully tighten the two 3x10mm button-
Close ratio gear
head screws securely. Inspect the cover to make sure that the O-ring
set shown
seal is not visible.
8. Turn on the vehicle's radio system and flip the transmitter into
second gear (down position on Traxxas TQ-3 transmitters). Allow the
servo to comply.
9. Locate the servo arm and
assembled linkage. While in second
gear, install the servo arm onto the
servo to a "11 o-clock" position as
shown (R).
TRAXXAS . com
Covers Part #5692
J
L
M
N
O
P
Q
R
KC1838 -R00 Rev 130515
K
2nd Gear Position