background image

TRAXXAS • 19

tires if holes are not cut in the tires. Cut two small holes (3mm or 1/8” diameter) in 
each tire.  Each hole should be near the tire center-line, 180 degrees apart. 

3.  Confirm that the RX box O-ring and cover are installed correctly and secure. Make 

sure the screws are tight and the blue O-ring is not visible protruding from the 
edge of the cover.

4.  Confirm that your batteries can be used in wet conditions.
5.  Use lower gearing (smaller pinion gears, as low as 9T or spur gear as large as 54T) 

when running in mud, deep puddles, snow, or other similar situations that will 
restrict the tires and put much higher loads on the motor. 

Motor Precautions

• Velineon motor life can be greatly reduced in mud and water. If the motor gets 

excessively wet or submerged, use very light throttle (run the motor slowly) until 
the excess water can run out. Applying full throttle to a motor full of water can 
cause rapid motor failure. Your driving habits will determine motor life with a wet 
motor. Do not submerge the motor under water.

• Do not gear the motor by temperature when running in wet conditions.  The 

motor will be cooled by water contact and will not give an accurate indication of 
appropriate gearing.

• Use special care when operating your model in muddy conditions. Stop operating your 

model if it appears to be straining due to the tackiness of the mud, or build-up of mud 
on the chassis. Do not allow mud to collect on the motor or pack around the motor.

After Running Your Vehicle in Wet Conditions

1.  Drain the tires by spinning the tires at high speed to “sling” the water out. One way 

to do this is to make several high-speed passes on a flat, dry surface, if possible.

2.  Remove the batteries.
3.  Rinse excess dirt and mud off the model with low-pressure water, such as from a 

garden hose.  Do NOT use pressure washer or other high-pressure water. Avoid 
directing water into the bearings, differentials, etc.

4.  Blow off the model with compressed air (optional, but recommended). Wear 

safety glasses when using compressed air. 

5.  Remove the wheels from the model.
6.  Spray all the bearings, drivetrain, and fasteners with WD-40

®

 or similar water 

displacing light oil.

7.  Let the model stand or you may blow it off with compressed air. Placing the 

model in a warm sunny spot will aid drying. Trapped water and oil will continue 
to drip from the model for a few hours. Place it on a towel or piece of cardboard to 
protect the surface underneath. 

8.  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.

9. 

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.

• 

Stub axle housing bearings

: Remove, clean, and re-oil the bearings.

• 

Differentials

: Remove, disassemble, clean, and re-grease the differential 

components. Use a light coating of wheel bearing grease (from an auto parts 
store) on the metal gear teeth. Refer to your exploded view diagrams for help 
with disassembly and reassembly.

• 

Velineon motor

:  After operating your model in wet or muddy conditions, 

remove the motor and clean any mud or dirt from the bearings. To access the 
rear bearing, remove the plastic cap with thumb pressure, or gently pry the cap 
off with a flat-blade screwdriver. To prevent corrosion and assure maximum 
bearing life, lubricate the bearings with a light oil (available at your local 
hobby store). Following these steps will extend motor life and maintain peak 
performance. 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 wire clamp, remove the two 2.5x12mm socket-head cap screws.
2. To remove the cover, remove the two 3x12mm button-head cap screws.
3. To remove the receiver from the box, unplug the servo cables from the receiver 

and remove the receiver.

Receiver Installation

1.  Install the receiver into the box. Make sure the box 

light pipe is aligned with the receiver LED.

2.  Install the servo wires and antenna through the 

cover and plug the wires into receiver.

3.  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 any way.

4.  Install the cover and tighten the two 3x12mm button-head 

cap screws securely.

5.  Inspect the cover to make sure that the O-ring seal is 

not visible.

6.  Arrange the wires neatly using the wire guides in the 

receiver box.

7.  Apply small bead of silicone grease (Traxxas part #1647) to 

the wire clamp.

8.  Install the wire clamp and tighten the two 2.8x12mm cap 

screws securely.

DRIVING YOUR MODEL

Summary of Contents for 74076 Rally

Page 1: ...owner s manual MODEL 74076 1...

Page 2: ...ce and this device must accept any interference including interference that may cause undesired operation of the device Radio Frequency RF Exposure Statement This equipment complies with radio frequen...

Page 3: ...SAFETY PRECAUTIONS All of us at Traxxas want you to safely enjoy your new model Operate your model sensibly and with care and it will be exciting safe and fun for you and those around you Failure to...

Page 4: ...ar you ask your local hobby dealer or visit www call2recycle org LiPo Batteries Lithium Polymer LiPo batteries are becoming popular for use in R C models due to their compact size high energy density...

Page 5: ...e Side cutters and or needle nose pliers Philips screwdriver Soldering iron For more information on batteries see Use the Right Batteries on page 11 U joint wrench Pre load spacers and shock pistons B...

Page 6: ...wn Caster Block Steering Block Battery Receiver Box Antenna Mount Front Suspension Arm Front Bumper Steering Servo Shock Toe Link Front Camber Link Rear Camber Link Rear Shock Tower Traxxas High Curre...

Page 7: ...nce from outside sources 3 Install batteries in the transmitter See page 11 8 Detail your model See sidebar page 8 The transmitter requires 4 AA alkaline batteries sold separately Apply other decals i...

Page 8: ...mutator and brush arrangement with intelligent electronics that energize the electromagnetic windings in sequence to provide rotation Opposite of a brushed motor the brushless motor has its windings c...

Page 9: ...r easy wire replacement The Velineon 3500 is equipped with solder tabs Transmitter The hand held radio unit that sends throttle and steering instructions to your model Trim The fine tuning adjustment...

Page 10: ...Multi Function Knob Throttle Trigger Throttle Neutral Adjust Steering Wheel Power Switch Battery Compartment Set Button Menu Button Red Green Status LED see page 27 for more info Link Button LED Sens...

Page 11: ...entation as indicated in the battery compartment 3 Reinstall the battery door and snap it closed 4 Turn on the transmitter and check the status indicator for a solid green light If the status LED flas...

Page 12: ...se it on the opposite side of the chassis Note For taller batteries an extended battery hold down part 7426X is available sold separately For shorter batteries 6 cell use the included foam block in th...

Page 13: ...he transmitter and start over Always turn on the transmitter before plugging in the battery RADIO SYSTEM BASIC ADJUSTMENTS Throttle Neutral Adjustment The throttle neutral adjustment is located on the...

Page 14: ...t apply full throttle in forward or reverse while the model is elevated 8 Once adjustments are made turn off the receiver on your model followed by the hand held transmitter Range Testing the Radio Sy...

Page 15: ...Multi Function knob clockwise the steering sensitivity of the model will be decreased Note that a relatively large amount of steering wheel travel results in a smaller amount of servo travel The fart...

Page 16: ...ck to the factory defaults Otherwise you may not get the best performance from your speed control The transmitter should be adjusted as follows If the transmitter setting have been adjusted reset them...

Page 17: ...to drive SelectingTrainingMode Profile 3 50 Forward 100 Brakes 50 Reverse 1 Connect a fully charged battery pack to the VXL 3s and turn on your transmitter 2 With the VXL 3s off press and hold the EZ...

Page 18: ...charger Read and follow all maintenance and care instructions provided by the manufacturer of your batteries and charger Keep the VXL 3s cool Get plenty of airflow across the ESC heat sinks Use the co...

Page 19: ...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 th...

Page 20: ...ately Adjust the front wheels to 1 to 2 degrees of negative camber In the rear adjust the wheels to 1 to 2 degrees of negative camber These adjustments should be set with the model positioned at its n...

Page 21: ...nob to the center 0 position 5 Disconnect motor wires A and C see page 10 to prevent the motor from turning during the next steps Connect a fresh battery pack to the speed control and turn on the ESC...

Page 22: ...rtion from overtightening If the bottom of the shock is leaking then it is time for a rebuild The Traxxas rebuild kit for two shocks is part 2362 Driveline Inspect the driveline for signs of wear such...

Page 23: ...t hole Position 1 or 2 Position 4 is the stock setting To lower the roll center further move the outer camber link ends to the lower position on the C hub Bump steer correction Bump steer refers to un...

Page 24: ...n high current motor applications TUNING THE SEALED GEAR DIFFERENTIALS The action of the model s front and rear gear differentials can be tuned for different driving conditions and performance require...

Page 25: ...ial 1 Remove the two 3x20mm button head screws that secure the top bumper mount to diff case 2 Turn the chassis over and remove the two 3x12mm countersunk screws that hold the bumper skid plate to the...

Page 26: ...ustment settings you select will represent what you wish to be the servo s maximum travel the Steering Percentage or Braking Percentage functions will not override the End Point settings Steering and...

Page 27: ...u may wish to delete a model you no longer drive from the memory 1 Switch on the transmitter and receiver you wish to delete 2 Press and hold MENU Release when the status LED blinks green 3 Press MENU...

Page 28: ...Push forward to desired endpoint and press set to save To reset max throw Let go of controls and press SET The menu tree below shows how to navigate through the TQi transmitter s various settings and...

Page 29: ...LED blinks Press SET red LED blinks x3 Press MENU twice red LED blinks x3 Turn steering wheel to desired max left and right travel x8 Press SET to save each position Turn steering wheel to test settin...

Page 30: ...threshold warnings and log maximums minimums or averages Use the recording function to document your dashboard view with sound so that you can keep your eyes on your driving and not miss a single apex...

Page 31: ...____ wt Oil __________ wt Piston 1 hole Piston 1 hole Piston 2 hole Piston 2 hole Piston 3 hole Piston 3 hole Battery Placement Front Tire Type_________________ Tire Insert_ _______________ Wheel_ ___...

Page 32: ...______lbs Springs Color ___________________ Preload _________mm ______mm ______mm Springs Color ___________________ Preload _________mm Oil __________ wt Oil __________ wt Piston 1 hole Piston 1 hole...

Page 33: ..._mm Oil __________ wt Oil __________ wt Piston 1 hole Piston 1 hole Piston 2 hole Piston 2 hole Piston 3 hole Piston 3 hole Battery Placement Front Tire Type_________________ Tire Insert_ ____________...

Page 34: ...6200 TRAXXAS WAY McKINNEY TEXAS 75070 1 888 TRAXXAS 141231 74076 1 OM N EN R01...

Reviews: