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24 • TRX-4
DRIVING YOUR MODEL
6. Placing the truck in a warm, sunny spot will aid drying. Trapped water
and oil will continue to drip from the truck for a few hours. Place it on
a towel or piece of cardboard to protect the surface underneath.
7. As a precautionary step, remove the sealed receiver box cover. While
unlikely, humidity or tiny amounts of moisture or condensation may
enter the receiver box during wet running. This can cause long-term
problems with the sensitive electronics in the receiver. Removing
the receiver box cover during storage allows the air inside to dry. This
step can improve the long-term reliability of the receiver. It is not
necessary to remove the receiver or unplug any of the wires.
8. Additional Maintenance: Increase your frequency of disassembly,
inspection, and lubrication of the following items. This is necessary
after extended wet use or if the vehicle will not be used for an
extended period of time (such as a week or longer). This additional
maintenance is needed to prevent any trapped moisture from
corroding internal steel components.
• Portal gearboxes: Open, dry, clean, and re-grease the
gears and inspect for damage.
• Transmission: Remove, disassemble, clean, and
re-grease the transmission components. Use a light
coating of high-performance grease (such as Traxxas
part #5041) on the metal gear teeth. No grease is
required for the nylon gears. Refer to your exploded
view diagrams for help with disassembly and
reassembly.
• Titan 550 motor: Remove the motor, clean with aerosol motor
cleaner, and re-oil the bushings with lightweight motor oil. Be sure
to wear eye protection when using spray aerosol cleaners.
RECEIVER BOX: MAINTAINING A
WATERTIGHT SEAL
Removing and Installing Radio Gear
The unique design of the receiver box allows the removal and
installation of the receiver without losing the ability to maintain a
watertight seal in the box. The patent-pending wire clamp feature
gives you the ability to also install aftermarket radio systems and
maintain the watertight features of the receiver box.
Removing the Receiver
1. To remove the cover, remove the three 3x8mm button-head cap
screws.
2. To remove the receiver from the box, carefully pull it out (it is
secured by double-sided adhesive foam tape) and set to the side.
The antenna wire is still inside the clamp area and cannot be
removed yet.
3. Remove the wire clamp by removing the two 2.5x8mm cap
screws.
4. Unplug the servo cables from the receiver and remove the
receiver.
Receiver Installation
1. Always install the wires into the box before installing the receiver.
2. Install the antenna wire and the servo cables into the receiver box.
3. Arrange the wires neatly using the wire guides in the receiver box.
The excess wire will be bundled inside the receiver box. Label
which wire is for which channel.
4. Apply a bead of silicone grease
(Traxxas part #1647) to the wire clamp.
5. Install the wire clamp and tighten the
two 2.5x8mm cap screws securely.
6. Using double-sided adhesive foam
tape, install the receiver into
the box.
Note: For best performance, it is
recommended that the receiver
be installed in the original
orientation.
7. Plug the wires into receiver.
Refer to page 13 for the wiring
diagram.
8. Make sure the clear plastic light pipe in the receiver box is aligned
above the LED on the receiver.
9. 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.
10. Install the cover and tighten the three 3x8mm button-head cap
screws securely.
11. Inspect the cover to make sure that the o-ring seal is not visible.
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