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Fixed Gear Adapter
Incorrect gear mesh is the most
common cause of stripped
spur gears. Drag Slash makes
improper gear mesh virtually
impossible. A factory installed
fixed gear adapter helps set
the motor in the proper place
for the stock pinion and spur
gears. If a different gearing
combination is desired, the
fixed gear adapter will also need
swapped (an additional fixed
gear adapter is supplied with your model for use with the included
high-speed gearing). Use the exploded views included with your
model to aid in the disassembly/assembly process.
Adjusting the Slipper Clutch
The model is equipped
with an adjustable
slipper clutch that is
built into the large spur
gear. The purpose of
the slipper clutch is 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. From the factory, the slipper clutch adjusting spring
is fully compressed for best drag racing results. Remove the
rubber slipper clutch plug on the transmission cover to adjust the
slipper (if needed). Use the 4-way wrench to turn the adjusting nut
clockwise to tighten and counterclockwise to loosen.
Centering Your Servo
If you have removed the servo horn from your model's steering
servo, or the servo has been removed for service or cleaning, the
servo must be re-centered prior to installation of the servo horn or
installation of the servo into the model.
1. Remove the servo horn from the steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2. The white wire on
the servo lead is positioned towards the receiver's LED.
3. Turn the transmitter power switch on. Make certain the
transmitter's batteries are not depleted.
4. Turn off TSM (see page 17).
5. Turn the transmitter's steering trim knob to the center "0" position.
6. Disconnect motor wires "A" and "C" (see page 12) to prevent the
motor from turning during the next steps. Connect a fresh battery
pack to the speed control and turn on the ESC (see page 18). The
servo's output shaft will automatically jump to its center position.
7. Install the servo horn onto the servo output shaft. The servo horn
should face toward the center of the chassis and be perpendicular
to the servo body.
8. Check servo operation by turning the steering wheel back and
forth to ensure that the mechanism has been centered properly
and you have equal throw in both directions. Use the transmitter's
steering trim knob to fine-tune the position of the servo horn so
the model tracks straight when the steering wheel is at neutral.
ADJUSTING YOUR MODEL
Velineon 3500 Specs
Type:
Sensorless brushless
RPM/volt:
3500
Magnet type:
Ultra High-Temperature
Sintered Neodymium
Connection type :
3.5mm bullet
Wire size:
12 Gauge
Max rpm:
50,000
Diameter:
36mm (1.42) (540 size)
Length:
55mm (2.165)
Weight:
262g (9.24oz)
Always use the proper length
motor bolts. The standard
motor mounting bolts are
3x10mm. Using motor
bolts that are too long can
interfere with the motor's
rotation and damage the
motor's internals!
The VXL-3s features Locked
Rotor Protection. The VXL-3s
checks to make sure the
motor is turning. If the motor
is locked or damaged, the
ESC will enter fail-safe until
the motor is free to rotate.
DRAG SLASH • 27
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