© 2021 Digitrax, Inc.
www.digitrax.com
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Features:
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Mini 9G servo for turnout control, compatible with Digitrax DS78V decoder.
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Includes compact under layout mount bracket, allowing ~1.8" mount depth.
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Includes both 0.6mm and 0.8mm z-bend formed actuator drive-wires.
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Adjustable; slew range with horn arm holes, and angle offset on shaft spline.
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Includes 5/16" mount screws, actuator horns and servo hardware.
Parts List
1 DSXSV9 9G servo
2 z-bend actuator drive-wire sizes
1 Instruction Sheet
1 9G Mount, screws and horn arm pack
1.0 Servo Mount Assembly
1. Place the DSXSV9 servo
without horn arm
on the rear side of the mount
bracket with the wires away from the mount top, as shown in figure 1 . Use
two larger head 1/4" long screws from horn arm hardware bag to attach
servo to mount.
2. Drive the DSXSV9 to its
center
position by e.g. plugging into a
powered DS78V in Adjustment
mode
centering
state. See DS78V
manual section 2.0.
3. Poke through the z-bend end of
e.g. thin 0.6mm drive-wire into
the outer hole of the short horn
arm, then place the wire free tip
through the center pivot hole in
the plastic mount base, as shown
in figure 1.
4. To mechanically center; align
horn arm end pointing at the ser-
vo cable on the centerline, then
gently press horn center onto
the servo shaft spline. Use the
DS78V to then confirm that the
DSXSV9 now has almost sym-
metric Thrown (clockwise or CW)
and Closed (CCW) angles from
centerline. In e.g. the Thrown
position shown, use the small 5/32" long screw to lock the horn arm center
down to the shaft with this approximate mechanical center position.
5. Drive the servo back to centered position, so it is aligned and can be un-
plugged and later installed on the layout with drive-wire centered under the
turnout throw-bar drive hole, with aid of the base-template. Do not drive the
horn arm manually, as this will damage gears. For dry indoor use only.
DSXSV9
Complete Train Control
Run Your Trains, Not Your Track!
drive-wire, up
to throw-bar
drive hole
Figure 1.
servo cable, on centerline
upper
1/4" servo
mount
screw tip
9G servo
body, insert
from mount
rear side
short horn
arm: shown
in servo
Thrown/CW
position
horn arm
retain screw
center pivot hole
z-bend
through
outer arm
hole
Mount top: face
towards layout
underside. 4
mount slots to
align/attach.
Digitrax
9G mount
bracket
front
9G Turnout or motion control servo, with
mount bracket and installation hardware
Clamp holes
for
optional
remote actu-
ator cables
