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Never slide the threads on
the shock rod past the X-ring
seals when it is installed and
compressed by the bottom
cap of the shock. Doing so will
damage the seal and cause
shock oil to leak.
26 • TRX-4
ADJUSTING YOUR MODEL
Shock assembly
1. Insert the shock shaft assembly through the
shock body until the piston bottoms out.
2. Lubricate the shaft, O-ring, and X-rings with
silicone oil.
3. Install the O-ring, X-rings and spacer over
the shaft and into the bore of the shock
body.
4. Install the lower cap.
5. Grip the shaft close to the threads with
needlenose pliers or side cutters and
thread the rod end onto the shock shaft
until the rod end bottoms out.
6. Fill the shock with new silicone shock oil
(see the "Replacing Shock Oil" section on the
previous page).
7. Slowly thread the upper cap onto the
shock body.
8. Reinstall the spring and lower retainer.
TRANSMISSION TUNING
Adjusting the Slipper Clutch
The TRX-4 is equipped with an adjustable Torque Control slipper
clutch, which is built into the large spur gear. The purpose of the
slipper clutch is to protect the motor and drivetrain when the
drivetrain is bound while driving. The slipper clutch should not slip
during normal operation.
The slipper clutch is integrated
into the main spur gear on the
transmission. The slipper clutch
is adjusted using the locknut
Loosen
on the slipper shaft. To tighten
or loosen the slipper nut, insert
the 2.0mm hex wrench into the
hole in the end of the slipper
shaft. This locks the shaft for
adjustments.
To restore factory settings, use
the included 4-way wrench
to turn the adjustment nut
until all four spring washers
are flat; then, tighten the nut
an additional 1/16 turn (or
until the slipper clutch does
not allow the spur gear to slip
during normal operation).
TRACK TENSION ADJUSTMENT
Note: The track tension has
been preset at the factory and
should not require adjustment.
If more tension is desired,
remove the tension bar and
adjust the tension.
1. Remove the 2.5x23mm cap
screw from the track tension
bar (A).
2. Dislodge the tension bar
and fold it onto the chassis;
remove the chassis from the
track (B).
3. Unscrew the tensioner (C)
to the desired track tension
(2.5mm is the factory
setting) (D).
4. Reinstall the components in
reverse order.
CAUTION! Be cautious when adjusting tension; too much
tension will result in very high drivetrain loads, motor failure,
and/or premature wear on track components.
Tighten
2.5x23mm CS
2.5x23mm CS
2.5x23mm CS
C
2.5mm
A
B
D
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