TRAXXAS TRX-4 Deep Terrain Track Set

Product Information

The product is a remote-controlled truck. It is recommended to use the following parts for optimal performance (sold separately):

• Part No. 2250: Servo, digital high-torque 330 coreless, metal gear (ball bearing), waterproof
• Part No. 2255: Servo, digital high-torque 400 brushless, metal gear (ball bearing), waterproof
• Part No. 8247X: Servo horn, steering, metal
• Part No. 2262: BEC, complete (includes receiver box cover and seals)

The product also includes Traxx drive units for each corner of the truck. These drive units must be installed in the correct locations for proper operation.

Product Usage Instructions

1. Ensure that the product is equipped with a low gear transmission to prevent overheating and permanent motor damage.
2. If the product has a two-speed transmission, drive with the transmission in low gear.
3. If the product has a single-speed transmission, use the stock gearing (17-T pinion and 39-T spur gear) for general use in most terrain with NiMH or 2s LiPo batteries.
4. If driving in mud or snow or using a 3s LiPo battery, replace the stock gearing with an 11-T pinion and 45-T spur gear before driving.
5. To install the drive units:
   • Remove the M4x0.7mm wheel nuts from the stub axles and remove all four wheels and tires. Retain and reuse the wheel nuts.
   • Remove the stub axle nuts from the Traxx drive units using the included 17mm wheel wrench.
   • Install the drive units on the stub axles and reinstall the wheel nuts, tightening them securely. Reinstall the stub axle nuts.
6. To install the anti-rotation brackets on the portal gearboxes:
   • Remove the 2.5x10mm cap-head screws from the portal gearboxes.
   • Secure the brackets with the included 2.5x12mm cap-head screws (2).
7. Ensure that the drive teeth are free of debris while running the product.

Kit Contents

• TRX-4 Traxx (2 front, 2 rear)
• 2.5x12mm cap-head screws (8)
• 17mm wheel wrench

Recommended for optimal performance (sold separately):

Part No.| Description
2250| Servo, digital high-torque 330 coreless, metal gear (ball bearing), waterproof
2255| Servo, digital high-torque 400 brushless, metal gear (ball bearing), waterproof
8247X| Servo horn, steering, metal/ 3×14 BCS (1)
2262| BEC, complete (includes receiver box cover and seals)

Note: Traxx drive units are included for each of the truck and are marked for correct installation: front left, front right, rear left, rear right. The drive units must be installed in the correct locations for proper operation .

Note: The vehicle body, front/rear bumpers, or the rock sliders may require minor trimming for proper clearance after installation of the Traxx drive units. A travel limiter has been preinstalled in the rear shocks on the drive units to minimize the amount of trimming needed on the body. For more track articulation on uneven terrain, remove the travel limiter; additional body trimming may be required. Install the TRX-4 Long Arm Lift Kit (part

8140, 8140R, or 8140X, sold separately) for additional height and clearance

with the body.

CAUTION: USE LOW GEAR On models equipped with two-speed transmissions, drive with the transmission in low gear to prevent overheating and permanent motor damage. On models equipped with single-speed transmissions, the stock gearing (17-T pinion and 39-T spur gear) is suitable for general use in most terrain with NiMH or 2s LiPo batteries; for mud or snow use, or when using a 3s LiPo battery, you must replace the stock gearing with an 11-T pinion and 45-T spur gear prior to driving.

INSTALLATION

Driving Tips

• Keep the drive teeth on the interior of each rubber track clear of debris to prevent the track from shifting out of position or derailing during operation.
• Occasionally, the drive wheel may skip on the drive teeth of the track. This is normal and will not cause damage to your truck. Check for any obstructions and/or reposition the truck before continuing.
• Observe the rollover height when driving over tall obstacles. Do not attempt to climb obstacles that are taller than the rollover height of the Traxx (Fig. A). Be careful when reversing. The trailing wheel has a much lower rollover height than the leading wheels; some obstacles will be too tall for the trailing wheel.
• Increased traction from the rubber tracks may cause your truck body to lean to one side while driving through deep snow or thick mud. This is called torque twist. Installing stiffer suspension springs can reduce  torque twist in the chassis and provide additional stability.

Maintenance

• Always clean debris from the Traxx drive units after running, including snow buildup, mud, etc. Spray all metal components, screws, bearings, and bushings with WD-40® or similar water displacing light oil. It is best to remove the rubber tracks to gain access to all areas and to allow for complete cleaning of the assemblies.
• Clean the drive units using a garden hose with a spray nozzle. If a garden hose is not accessible, running the
• Traxx in clear water, such as a stream or shallow pond, will remove much of the accumulated mud. Blow all remaining water from the track assemblies with compressed air.
• DO NOT allow mud to dry on the drive units, as this will cause the assemblies to seize up and require full disassembly and thorough cleaning.
• Refill the anti-rotation shocks (oil dampers) with 40wt silicone shock oil as necessary.

PARTS LIST

Shock Assembly

Track Tension Adjustment

Note: The track tension has been preset at the factory and should not require adjustment. If more tension is desired, remove the tension bar and adjust the tension.

1. Remove the 2.5×23mm cap screw from the track tension bar (T1).
2. Dislodge the tension bar and fold it onto the chassis; remove the chassis from the track (T2).
3. Unscrew the tensioner (T3) to the desired track tension (2.5mm is the factory setting) (T4).
4. Reinstall the components in reverse order.
   • CAUTION! Be cautious when adjusting tension; too much tensionwill result in very high drivetrain loads, motor failure, and/or premature wear on track components.

CONTACT

• Traxxas, 6250 Traxxas Way,

• McKinney, TX 75070,

• Phone: 972-549-3000,

• Fax: 972-549-3011,

• e-mail: support@Traxxas.com.

• Traxxas.com/manuals.
  Traxxas.com/manuals.

• Traxxas.com/manuals.

References

• RC Cars | RC Trucks | Traxxas
• Support Manuals | Traxxas

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