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1/16 SUMMIT VXL • 25

If you have questions or need technical assistance, call Traxxas at

1-888-TRAXXAS

 

(1-888-872-9927) (U.S. residents only)

MAINTAINING YOUR MODEL

Your model requires timely maintenance in order to stay in top 
running condition. 

The following procedures should be taken 

very seriously.

Inspect the vehicle for obvious damage or wear. Look for:

1.  Cracked, bent, or damaged parts 
2.    Check the wheels and steering for binding. 
3.    Check the operation of the shock absorbers. 
4.    Check the wiring for any frayed wires or loose connections.
5.    Check the mounting of the receiver and servo(s) and  

speed control.

6.    Check the tightness of the wheel nuts with a wrench.
7.    Check the operation of the radio system, especially the 

condition of the batteries.

8.    Check for any loose screws in the chassis structure  

or suspension.

9.   Inspect the gears for wear, broken teeth, or debris lodged 

between the teeth. 

10.  Check the tightness of the slipper clutch.
11.  Check the tightness of the front pivot balls.

Other periodic maintenance:

•  Slipper clutch pad (friction material):  

Under normal use, the 
friction material in the 
slipper clutch should 
wear very slowly. If 
the slipper clutch fails 
to provide consistent 
performance or slips even 
when the adjustment nut is fully 
tightened, disassemble the slipper 
clutch and replace the slipper pad. Inspect 
the spur gear and pressure plate for wear or 
damage and replace if necessary. 

•  Chassis: Keep the chassis clean of accumulated dirt and grime. 

Periodically inspect the chassis for damage.

•  Shocks: Keep the oil level in the shocks full. Use only 100% 

pure silicone shock oil to prolong the life of the seals. If you are 
experiencing leakage around the top of the shock, inspect the 
bladder in the top cap for signs of damage or distortion 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 #7062.  

•  Suspension: Periodically inspect the model for signs of damage, 

such as bent or dirty suspension pins, bent turnbuckles, loose 
screws, and any signs of stress or bending. Replace components 
as needed.

•  Driveline: Inspect the driveline for signs of wear such as worn 

drive yokes, dirty axle half shafts, and any unusual noise or 
binding. Remove the gear cover and Inspect the spur gear for 
wear and check the tightness of set screws in the pinion gears. 
Tighten, clean, or replace components as needed.

Storage

When you are through running the model for the day, blow it off 
with compressed air or use a soft bristled paint brush to dust-off 
the vehicle. Always disconnect and remove the battery from the 
model whenever the model is stored. If the model will be stored for 
a long time, then also remove the batteries from the transmitter.

Keep this manual and the other documents included with your 
model for future reference. If you misplace your manual or any of 
the documents, they may be downloaded at Traxxas.com. 

If you have any questions about your model or its operation, 
call the Traxxas Technical Support line toll-free at: 

1-888-TRAXXAS (1-888-872-9927)

*

Technical support is available Monday through Friday from 8:30am 
to 9:00pm central time.

*Toll-free support is available to U.S. residents only.

11

Always wear eye protection 
when using compressed 
air or spray cleaners and 
lubricants.

Slipper

Pad

Summary of Contents for 1/16 Summit VXL 72074

Page 1: ...owner s manual MODEL 72074...

Page 2: ...f the way Refer to the next page to find out how to contact us and what your support options are Quick Start This manual is designed with a Quick Start path that outlines the necessary procedures to g...

Page 3: ...r question at support Traxxas com Join thousands of registered members in our online community at Traxxas com Traxxas offers a full service on site repair facility to handle any of your Traxxas servic...

Page 4: ...t is being stored or transported Allow the battery pack to cool off between runs before charging Do not use battery packs that have been damaged in any way Do not use battery packs that have damaged w...

Page 5: ...G THE DECALS The main decals for your model have been applied at the factory Additional decals are printed on self adhesive clear mylar and are die cut for easy removal Use a hobby knife to lift the c...

Page 6: ...Shock Traxxas High Current Connector Chassis Front Body Mount Rear Body Mount Push Rod Hex Hub Pivot Ball Axle Carrier Rocker Front Bumper Transmission Spring Pre load Adjuster Slipper Clutch LED Ligh...

Page 7: ...11 11 Maintaining your model See page 25 The transmitter requires 4 AA alkaline or rechargeable batteries Follow these critical steps to maintain the performance of your model and keep it in excellent...

Page 8: ...ated with brushless motors Typically it is a slight stutter noticed when accelerating from a stop It happens for a very short period as the signals from the electronic speed control and the motor sync...

Page 9: ...face of the transmitter Thermal Shutdown Protection Temperature sensing electronics used in the electronic speed control detect overloading and overheating of the transistor circuitry If excessive tem...

Page 10: ...3m ELECTRONIC SPEED CONTROL Your model is equipped with the Traxxas TQ 2 4GHz transmitter The transmitter has two channels Channel one operates the steering and channel two operates the throttle The r...

Page 11: ...ed while charging INSTALLING THE RECEIVER ANTENNA The receiver antenna and antenna tube must be properly installed before operating your model Follow these steps to install the antenna and antenna tub...

Page 12: ...batteries into the Y harness sold separately The harness connects the two packs in series The two 7 2 volt 6 cell battery packs will operate as one 14 4 volt 12 cell battery pack 4 Plug the Y harness...

Page 13: ...u accidentally reset the direction of a channel Do not reverse the steering or throttle channels unless necessary Steering reversing procedure 1 Press and hold the SET button on the transmitter for tw...

Page 14: ...uld be pointing straight ahead If the wheels are turned slightly to the left or right slowly adjust the steering trim control on the transmitter until they are pointing straight ahead 7 Gently operate...

Page 15: ...oth the transmitter and the receiver turn solid green the system is bound and ready for use Confirm that the steering and throttle operate properly before driving your model TRAXXAS TQ 2 4GHz RADIO VE...

Page 16: ...eutral The LED will shine RED 5 Move the throttle trigger forward again to engage reverse Profile 1 The LED will turn off Once full reverse power is reached the LED will shine RED 6 To stop return the...

Page 17: ...he speed control will slowly blink red indicating a low voltage shutdown The VXL 3m will stay in this mode until a fully charged battery is connected The electronic speed control is factory set with L...

Page 18: ...es of batteries that are available and the methods with which they can be charged it s impossible to give exact run times for the model Another major factor that affects run time is how the model is d...

Page 19: ...ot 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...

Page 20: ...iver and remove the receiver Receiver Installation 1 Route the antenna wire out of the receiver box cover A Place the cover on the chassis 2 Route the servo and speed control leads into the receiver b...

Page 21: ...ension damping effect Changing the oil to a higher viscosity oil will increase damping Lowering the viscosity of the oil will cause the suspension damping to be reduced Damping should be increased wit...

Page 22: ...ission gears It may also be used to regulate the amount of power sent to the rear wheels to prevent tire spin When it slips the slipper clutch makes a high pitch whining noise To adjust the slipper cl...

Page 23: ...model which will reduce performance and may overheat the motor and speed control Use the following formula to calculate the overall ratio for combinations not listed on the gear chart Motor Installati...

Page 24: ...eometry of the model The offsets and dimensions designed into the model s wheels are intentional therefore Traxxas cannot recommend the use of other non Traxxas wheels with different specifications Ex...

Page 25: ...ocks full Use only 100 pure silicone shock oil to prolong the life of the seals If you are experiencing leakage around the top of the shock inspect the bladder in the top cap for signs of damage or di...

Page 26: ...1100 Klein Road Plano Texas 75074 1 888 TRAXXAS 101108 72074OM N EN R00 owner s manual MODEL 72074...

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