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2. PREPARING FOR USE WITH LIVE STEAM LOCOS.
The procedures on pages 2, 3 & 4 apply to both # EVO-BASIC handpieces.
Channel # 1 & Ch # 3 are both 100% (90°) servo throw. This will suit most situations.
Turn the
# EVO-BASIC
handpiece ON. Make sure Rx is OFF. Then re-insert the servos into the correct Rx sockets.
The valve gear servo goes in Ch # 3 (Elevator) socket. The regulator servo is controlled by Channel # 1 (Big knob).
N.B.
Swapping the knobs & servo connections to have Left to RH one handed operation will also change the
servo throws for Regulator and Reverser functions. See above.
Be careful selecting the correct terminal. They are marked on the front of the DSM2-Mini Rx.
HOW TO ADJUST SERVOS USING REGULAR DSM2 (AB) Rx
’s.
(See the instructions with our AB Rx’s).
When using for the first time make sure both knobs are centered. Both knobs have a centre détente.
VALVE GEAR REVERSER SERVO
1.1.
Then turn on the Live Steam loco Rx. The two servos should immediately snap to the neutral position.
1.2.
Adjust the valve gear servo connecting rod to ensure the centre position of the valve gear matches the servo.
1.3.
Turn the reverser knob slowly to the right Clockwise (CW) and check that the servo moves the valve gear to the
forward position.
If it goes the wrong way you will need to reverse the mechanical connection.
If the reverser knob wants to make the servo move too far, put the connecting rod into a servo arm hole closer to the
middle of the servo arm. If it does not move far enough, move the rod into a hole further out.
N.B DO NOT FORCE THE SERVO AGAINST THE STOP. DOING SO WILL DAMAGE THE SERVO.
1.4.
Turn the reverser knob slowly and carefully to the left Counter Clockwise (CCW). With regards to any possible
mechanical changes you made during
1.3
above, it should perform correctly.
STEAM REGULATOR SERVO.
2.1.
Turn the regulator knob to the left (CCW) the servo will rotate CCW and should close the steam regulator valve.
If it goes the wrong way, you will need to reverse the mechanical connection.
If the large knob wants to make the servo move too far, i.e. over closing the regulator, put the connecting rod into a
servo armhole closer to the middle of the servo arm. If it does not move far enough move the rod to a hole further out.
N.B DO NOT FORCE THE SERVO AGAINST THE STOP. DOING SO WILL DAMAGE THE SERVO.
2.2.
Turn the large knob to the right to check the servo opens the steam regulator far enough.
IF MECHANICALLY CHANGING THE SERVO CONNECTIONS IS NOT POSSIBLE, RCS HAS THE
# SIG-REV
TO REVERSE THE SERVO SIGNAL. ONE FOR EACH SERVO REQUIRING REVERSING
3. DRIVING LIVE STEAM LOCOS.
Make sure the Tx & Rx are both OFF and the regulator knob is fully CCW. This is the same as the throttle stick on a
conventional stick R/C being fully down.
Ensure the reverser knob is in the middle. Turn ON the
# EVO-BASIC
hand piece, and then the loco.
Once steam has been raised, select the direction of valve gear with the CH # 3 Reverser knob.
Then turn the regulator knob CW. That is like raising the throttle stick on a conventional stick R/C.
Turn the big knob CCW to slow the loco. All the way CCW will bring the loco to a stop.
You can have a faster stop by centering the reverser control knob. Then make sure regulator knob is also fully CCW.
The Bind button.
For Live Steam
the Ch # 5 doubles as a whistle control with a servo. It starts at one extreme & when pressed goes
fully the other way. It snaps back to the start point when released. For controlling a servo operated steam whistle. OR:
For Battery R/C.
When the Ch # 5 button is combined with a suitable R/C switch plugged into the Rx, the button can be
used as a sound trigger. For example, the latest MyLocosound features a diesel engine START
– STOP feature.
Also suitable for controlling Kadee
®
servo uncoupler’s. May require a
# SIG-REV
as default direction is back to front.
LOW OFF NEUTRAL
SETTING THE VALVE GEAR
FOR REVERSE.
TURN BIG KNOB CW TO
INCREASE STEAM i.e. SPEED
OPEN REGULATOR TO SPEED UP.
