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5

EN

LOSI

®

 22S NO PREP DRAG: 1/10 SCALE 2WD RTR • INSTRUCTION MANUAL

Binding is the process of programming the receiver to recognize the GUID (Globally Unique 

Identifier) code of a single specific transmitter.
1. Press and hold the bind button. 
2. Power ON the receiver. The orange LED will begin to flash.
3. Set the trims and control positions at the desired failsafe settings.
4. Power ON the SLT3 transmitter.
5. When the transmitter’s orange LED remains lit, it is connected to SR315 receiver.
You must rebind when:

•  Different failsafe positions are desired (e.g., when throttle or steering reversing has 

changed).

•  Binding the receiver to a different transmitter.

The servo travel on the Steering and Throttle channels can be adjusted through a special pro-

gramming mode in the transmitter.
1. Begin with the transmitter binding process to the receiver complete. Power ON the receiver.
2. Hold full right and full brake while powering the transmitter ON to put the transmitter into 

programming mode. 

The LED on the transmitter will flash 4 times to indicate it is in programming mode.

3. Turn and hold the wheel full left to set the travel limit for that direction, Press the A button 

to increase travel, press the B button to reduce travel. The LED will flash once with every 

change. Return the wheel to center to set the travel value.

IMPORTANT: 

If the value has reached the maximum or minimum that can be accepted, 

the LED will not flash with further input.

4. Turn the wheel to the right and repeat the process to set the steering travel to the right.
5. For electric vehicles, power the Transmitter OFF to save the settings. Calibrate your ESC to 

the default throttle travel.

6. For fuel powered vehicles, set the throttle travel without the engine running; After setting 

steering travel, you can set throttle travel with the same process. Pull and hold full throttle, 

adjust travel with the A and B buttons, return to center to set the value. 

7. Push full brake, adjust travel with the A and B buttons, return to center
8. Power the transmitter OFF to save the values.

Bind Button

SPMSR315 DUAL PROTOCOL RECEIVER

BINDING

Specifications
Type:

 Dual Protocol 3 Ch Receiver* (SLT/DSMR)

Dimensions (LxWxH):

 

32.5 x 21.5 x 12.4mm

Antenna Length:

 90mm

Channels:

 3 

Weight:

 6g 

Band: 

2.4GHz

Voltage Range:

 3.5–9.6V

Bind Type: Bind Button
Failsafe:

 Hold the steering wheel and throttle trigger in the desired failsafe positions during 

binding
*SPMSR315 receivers included with the SLT3 transmitter include SLT and DSMR compatibility. 

If you have an SR315 receiver that was purchased by itself, you may need to install a firmware 

update to make your SR315 SLT compatible. 

STR

THR

BATT

AUX 1

The SR315 receivers feature a coaxial antenna design for easy installation in almost any 

model. Think of the last 1 inch (32mm) on the tip of the antenna as the active portion of the 

antenna, the coaxial portion leading up to it is just an extension. Install the antenna so the 

active portion is positioned as high as possible in the vehicle, and not “in the shadow” of any 

carbon fiber or metal. The case of the receiver can accept an antenna tube directly, making 

optimal antenna placement easy (antenna tube not included).

WARNING:

 Do not kink, cut or damage the antenna wire. The antenna is made 

of a coaxial wire; if the outer sheath becomes damaged, the receiver will not work 

properly. If the antenna is damaged in any way, replace the antenna before attempting to 

use the receiver. 

RECEIVER ANTENNA

SERVO TRAVEL

DRIVING PRECAUTIONS 

•  Maintain sight of the vehicle at all times.
•  Routinely inspect the vehicle for loose wheel hardware. 
•  Routinely inspect the steering assembly for any loose hardware. Driving the vehicle  

off-road can cause fasteners to loosen over time.

•  Do not drive the vehicle in tall grass. Doing so can damage the vehicle or electronics.
•  Stop driving the vehicle when you notice a lack of power. Driving the vehicle when  

the battery is discharged can cause the receiver to power off. If the receiver loses power, 

you will lose control of the vehicle. Damage due to an over-discharged Li-Po battery is  

not covered under warranty.

CAUTION:

 Do not discharge a Li-Po battery below 3V per cell. Batteries discharged 

to a voltage lower than the lowest approved voltage may become damaged, result-

ing in loss of performance and potential fire when batteries are charged.

•  Do not apply forward or reverse throttle if the vehicle is stuck.  

Applying throttle in this instance can damage the motor or ESC.

•  After driving the vehicle, allow the electronics to cool before driving the vehicle again.

IMPORTANT:

 Keep wires away from all moving parts.

POWERING ON THE VEHICLE

1. Center the ST TRIM and TH TRIM dials on the transmitter.
2. Power on the transmitter.
3. Install a fully charged battery pack per the 

Installing the Battery

 section.

4. Power on the ESC. 

IMPORTANT:

 The vehicle MUST remain on a flat, level surface and motionless 

for at least 5 seconds.

Summary of Contents for Losi 22S

Page 1: ...ials thoroughly Horizon Hobby is not responsible for inadvertent errors in this manual INSTRUCTION MANUAL BEDIENUNGSANLEITUNG MANUEL D UTILISATION MANUALE DI ISTRUZIONI Battery and Charger Battery and Charger Not Included Not Included NO PREP DRAG 1 10 2WD RTR ...

Page 2: ...As the user of this product you are solely responsible for operating in a manner that does not endanger yourself and others or result in damage to the product or property of others This model is controlled by a radio signal subject to interference from many sources outside your control This interference can cause momentary loss of control so it is advisable to always keep a safe distance in all di...

Page 3: ...collected in the tires by spinning them at high speed With the body removed place the vehicle upside down and pull full throttle for a few short bursts until the water has been removed CAUTION Always keep hands fingers tools and any loose or hanging objects away from rotating parts when performing the above drying technique Remove the battery pack s and dry the contacts If you have an air compress...

Page 4: ...id red lights Indicates the power is ON and adequate battery power Flashing red lights Indicates the battery voltage is critically low Replace batteries D Steering Wheel E Throttle Brake F Steering Rate On The Fly knob for travel adjustment on the steering G Channel 3 3 position momentary switch middle position is neutral For programming press up for A button press down for B button H Throttle Lim...

Page 5: ...ger in the desired failsafe positions during binding SPMSR315 receivers included with the SLT3 transmitter include SLT and DSMR compatibility If you have an SR315 receiver that was purchased by itself you may need to install a firmware update to make your SR315 SLT compatible STR THR BATT AUX 1 The SR315 receivers feature a coaxial antenna design for easy installation in almost any model Think of ...

Page 6: ...verse them wait for the wheels to stop then push the trigger When moving forward the wheels should maintain a straight line without any steering wheel input If not adjust the ST Trim knob so the wheels maintain a straight line without having to turn the steering wheel 1 Begin with the transmitter and receiver binding complete 2 Set your transmitter s throttle channel to 100 travel and trim to neut...

Page 7: ... lowering efficiency Lowering the timing generally means higher efficiency less heat and additional torque while lowering RPM and punch acceleration Low Voltage Cutoff This function helps to prevent battery over discharge The ESC continuously monitors the bat tery s voltage If the voltage falls below the voltage threshold for 2 seconds the output power shuts off and the red LED flashes twice repea...

Page 8: ...h meet is important to the performance of the vehicle When the gear mesh is too loose the spur gear could be damaged by the pinion gear of the motor If the mesh is too tight speed could be limited and the motor and ESC will overheat 1 Loosen the motor screws and slide the motor back 2 Put a small piece of paper between the pinion and spur gears 3 Push the gears together while tightening the motor ...

Page 9: ...ve Inspection or Services If this Product needs to be inspected or serviced and is compliant in the country you live and use the Product in please use the Horizon Online Service Request submission process found on our website or call Horizon to obtain a Return Merchandise Authorization RMA number Pack the Product securely using a shipping carton Please note that original boxes may be included but ...

Page 10: ... Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Horizon Hobby LLC 2904 Research Rd Champaign IL 61822 Email compliance horizonhobby com Web HorizonHobby com IC INFORMATION CAN ICES 3 B NMB 3 B IC 6157A SPMSLT300 IC 61...

Page 11: ...s or registered trademarks of Ho rizon Hobby LLC The Spektrum trademark is used with permission of Bachmann Industries Inc Maxxis Magnaflow Kicker K N and associated logos are property of their respective owners and are used with permission Other patents pending Created 12 20 63446 LOS03035T1 T2 LOS03045T1 T2 WWW LOSI COM ...

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