Adjusting Your Model - Traxxas SLASH BRUSHLESS 58134-4 Owner's Manual

All of the toe links are installed on
the truck so the left-hand thread
indicators point to the same direction.
This makes it easier to remember
which way to turn the wrench to
increase or decrease toe link length
(the direction is the same at all four
corners). Note that the groove in the
hex indicates the side of the toe link
with the left-hand threads.
To achieve a good starting point for
the slipper clutch, tighten the slipper
clutch adjusting nut clockwise until
the slipper clutch adjusting spring
fully collapses (do not over tighten),
and then turn the slipper clutch nut
counter-clockwise one full turn.
24 • SLASH BRUSHLESS

ADJUSTING YOUR MODEL

Once you become familiar with driving your model, you might need to
make adjustments for better driving performance
Adjusting the Slipper Clutch
The model is equipped with an adjustable
slipper clutch, which 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. Remove the
rubber slipper clutch plug on the
transmission cover in order to adjust the slipper. Use the 4-way wrench
to turn the adjusting nut clockwise to tighten and counterclockwise to
loosen. Place the model on a high-traction surface, such as carpet. Adjust
the slipper so that you can hear it slip for approximately two feet from a
standing, full throttle start. (Learn more about adjusting the slipper clutch
in the sidebar.)
Motor and Gearing
One of the more significant advantages to your model's transmission is
the extremely wide range of available gear ratios. It can be geared low
enough to run an extremely hot, modified motor. A modified motor
should be geared lower (higher numerically) than a stock motor because
it will reach its maximum power at higher rpms. A modified motor that
is geared incorrectly can actually be slower than a correctly-geared,
stock motor. Use the following formula to calculate the overall ratio for
combinations not listed on the gear chart:
# Spur Gear Teeth
x 2.72 = Final Gear Ratio
# Pinion Gear Teeth
If you are worried that you might be over-geared, check the temperature of
the battery pack and motor. If the battery is extremely hot, and/or the motor
is too hot to touch, your model is probably over-geared. If you are not able to
run your model for at least four minutes before the battery dies, then change
to a lower gear ratio. This temperature test assumes that the model is close to
factory stock weight and operates freely with no excessive friction, dragging,
or binding, and the battery is fully charged and in good condition.
The model is equipped with a BL-2s 3300kV motor. The gear combination
that comes stock on each model provides good overall acceleration and top
speed. If you want more top speed and less acceleration, install high-speed
gearing (more teeth) or if you want more acceleration and less top speed,
use a smaller pinion gear (optional gearing not included).
The BL-2s 3300kV is equipped with an integrated cooling fan that is
effective during medium to high-speed operation. The gearbox is
Tighten
specially vented to cool the motor. Repetitive starting and stopping
over short distances creates excess heat and will not allow the fan to
cool the motor properly. For this type of driving, smaller pinion gears are
recommended to reduce load on the motor.
Loosen
Gearing Compatibility Chart (see sidebar)
The chart in the sidebar shows a full range of gear combinations. This
does NOT imply that these gear combinations should be used. Over-
gearing (bigger pinions, smaller spurs) can overheat and damage the
motor and/or speed control. Items in black will fit 540 motor only (not
Titan 12T).
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. To
set the gear mesh, cut a narrow strip of notebook paper
and run it into the gear mesh. Loosen the motor screws
and slide the motor and pinion gear into the spur gear.
Retighten the motor screws and then remove
the strip of paper. You should be able to run a
fresh strip of paper through the gears without
binding them.
Strip of
Paper
Motor
Screws