Traxxas Summit VXL Owner's Manual download pdf (Page 24)

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1/16 SUMMIT VXL

Adjusting Gear Mesh

Incorrect gear mesh is the most common

cause of stripped spur gears. Gear mesh

should be checked and adjusted anytime

a gear is replaced. Access the gears by

removing the single screw on the top

gear cover.

To set the gear mesh, cut a narrow strip of

notebook paper and run it into the gear

mesh of the motor. The motor is mounted

to an aluminum motor mount. Loosen

the single motor mount screw with the

provided 2.5mm wrench to slide the motor

mount. Slide the motor and pinion gear into

the spur gear. Retighten the motor mount

screw and then remove the strip of paper.

You should be able to run a fresh strip of

paper through the gears without binding them.

WHEELS AND TIRES

Your model uses 12mm axle hexes which allow many types of

aftermarket tires and wheels to be adapted for use on your model.

Most will affect the overall width and the suspension geometry 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.

Experimentation with different types of tires is recommended

to see which ones work the best on the terrain where the model

is run. Soft compound tires with many short spikes generally

work better on hard, dry surfaces. In loose dirt, a tire with large

spikes should perform better. Foam tires can be ﬁtted for use on

pavement or indoor carpet tracks. See your parts list for accessory

wheels and tires.

When selecting tires, consider the overall diameter of the tire.

If the overall diameter is signiﬁcantly larger than the stock tire’s

diameter, you will need to use a smaller pinion gear to compensate

for the larger tire. If you wish to install tires with a diameter greater

than 4 inches or 100mm, Traxxas suggests you conﬁgure the

transmission for ‘underdrive’ gearing. Details on making this simple

modiﬁcation are available at Traxxas.com.

TUNING ADJUSTMENTS

Motor Mount

Screw

Do Not Loosen

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Traxxas Summit VXL Owner's Manual Page 24

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