30 • SLAYER PRO 4X4
Adjusting the Pivot Ball Caps
The pivot ball caps should be adjusted
so that the pivot balls operate freely in
the axle carriers with no excess play.
Use the provided four-way suspension
multi-tool to tighten or loosen the pivot
ball cap.
Shock Oil
The 4 oil-filled aluminum shocks (dampers) effectively control the
suspension movement by preventing the wheels and tires from
continuing to “bounce” after rebounding from a bump. Changing the
oil in the shocks can vary the suspension 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 (with higher viscosity oil) if the model
is bottoming easily over jumps. Damping should be decreased (with
thinner viscosity oil) if the model is hopping over small bumps and
feels unstable. The viscosity of shock oil is affected by extremes
in operating temperature; an oil of certain viscosity will become
less viscous at higher temperatures and more viscous at lower
temperatures. Operating in regions with cold temperatures may
require lower viscosity oil. From the factory, the shocks are filled with
SAE-30W silicone oil. Only use 100% silicone oil in the shock.
For shock piston tuning see Advanced Tuning Adjustments on page 36.
Replacing Shock Oil
The shocks have to be removed
from the vehicle and disassembled
to change the oil.
1. Remove the lower spring retainer
and shock spring.
2. Remove the upper shock cap
using the shock wrench and
the suspension multi-tool
3. Empty the used shock oil from the shock body.
4. Fill the shock with new silicone shock oil up to the top of the
shock body.
5. Slowly move the piston up and down (always keeping it submerged
in oil) to release the air bubbles. Let the shock sit for a few minutes
to allow any remaining air bubbles to surface.
6. Slowly thread the upper cap with the installed shock bladder onto
the shock body with the suspension multi-tool. The excess oil will
bleed out of the small hole in the shock cap.
7.
Tighten the shock cap until snug. Use the included steel shock
wrench to hold onto the shock body while tightening.
ALIGNMENT SETTINGS
The alignment settings are critical for optimizing the performance
of Slayer Pro 4x4. Adjust your alignment as carefully and precisely as
you possibly can.
Toe Adjustment
The wheels can be adjusted to
point straight ahead or have a toe-
in or toe-out setting. To help you
remember, look down at your feet.
For toe-in, your feet point towards
each other. For toe-out, your feet
point away from each other.
The toe angle of the front wheels
can be adjusted by varying the
length of the toe links that connect
the steering linkage to the front
axle carriers. The toe angle of
the rear wheels can be adjusted
by varying the length of the
metal toe links that connect the
rear bulkheads to the rear axle
carriers. The front toe links and
rear toe links are equipped with
turnbuckles. The lengths of the toe
links can be adjusted by turning
them with the included turnbuckle wrench.
Toe Base Factory Settings
Front:
0-degrees
Rear:
1-degree toe-in each side
Under certain conditions, toe-in can be increased to a maximum
of 3 degrees.
BASIC TUNING ADJUSTMENTS
0
°
0
°
0
°
0
°
Left-Hand
Threads
Right-Hand
(Normal)
Threads
Decrease
Length
Increase
Length
