GEICO PRB08040 36-Inch Twin Brushless RTR Boat Owner’s Manual

36-INCH TWIN BRUSHLESS RTR BOAT
PRB08040
Owners Manual
Batteries sold separately

NOTICE

All instructions, warranties, and other collateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, visit http://www.horizonhobby.com or towerhobbies.com and click on the support or resources tab for this product.

MEANING OF SPECIAL LANGUAGE

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product:

WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superficial injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.
NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND little or no possibility of injury.
WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury.
This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not use incompatible components or alter this product in any way outside of the instructions provided by Horizon Hobby, LLC. This manual contains instructions for safety, operation, and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.
WARNING AGAINST COUNTERFEIT PRODUCTS: Always purchase from a Horizon Hobby, LLC authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, LLC disclaims all support and warranty with regards to, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.
Age Recommendation: Not for children under 14 years. This is not a toy.

Safety Precautions and Warnings
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 the property of others.

• When handling and/or transporting your boat, always pick up the boat from the front, keeping all moving parts pointed away from you.
• Always keep a safe distance in all directions around your model to avoid collisions or injury. This model is controlled by a radio signal subject to interference from many sources outside your control. Interference can cause momentary loss of control.
• Always operate your model in open spaces away from full-size vehicles, traffic, and people.
• Always carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable battery packs, etc.).
• Always keep all chemicals, small parts, and anything electrical out of the reach of children.
• Always avoid water exposure to all equipment not specifically designed and protected for this purpose. Moisture causes damage to unprotected electronics.
• Never place any portion of the model in your mouth as it could cause serious injury or even death.
• Never operate your model with low transmitter batteries.

Water-Resistant Boat with Waterproof Electronics

Your new Horizon Hobby boat has been designed and built with a combination of waterproof and water-resistant components to allow you to operate the product in calm, freshwater conditions.
While the entire boat is highly water-resistant, it is not completely waterproof and your boat should NOT be treated like a submarine. The various electronic components used in the boat, such as the Electronic Speed Control (ESC), servo(s), and receiver are waterproof, however, most of the mechanical components are water-resistant and require additional maintenance after use.
Metal parts, including the bearings, pins, screws and nuts, propeller, rudder, rudder mounts, prop struts, as well as the contacts in the electrical cables, will be susceptible to corrosion if additional maintenance is not performed after running in wet conditions. To maximize the long-term performance of your boat and to keep the warranty intact, the procedures described in the “Wet Conditions Maintenance” section below must be performed regularly.
CAUTION: Failure to exercise caution while using this product and complying with the following precautions could result in product malfunction and/or void the warranty.

General Precautions

• Read through the wet conditions maintenance procedures and make sure that you have all the tools you will need to properly maintain your boat.

• Not all batteries can be used in wet conditions. Consult the battery manufacturer before use. Caution should be taken when using Li-Po batteries in wet conditions.

• Most transmitters are not water-resistant. Consult your transmitter’s manual or the manufacturer before operation.

• Never operate your transmitter or boat where lightning may be present.

• Saltwater is very conductive and highly corrosive. If you choose to run your boat in saltwater, immediately rinse the boat in fresh water after every use. Operating your boat in saltwater is at the sole discretion of the modeler.

• Wet Conditions Maintenance

• Drain any water that has collected in the hull by removing the drain plug or canopy and tilting the boat in the appropriate direction to drain the water.
  CAUTION: Always keep hands, fingers, tools, and any loose or hanging objects away from rotating parts.

• Remove the battery pack(s) and disconnect the ESC and motor. Dry the contacts. If you have an air compressor or a can of compressed air, blow out any water that may be inside the recessed connector housings.

• Remove the flex shaft and all moving parts. Dry and lubricate parts after every 15 minutes of operation or if the boat becomes submerged.

• If the boat becomes submerged in water, immediately service the motor bearings by spraying them with water displacement fluid. Then lubricate the bearings with medium oil (DYNE0100) and allow it to penetrate the bearings before running the boat again.

NOTICE: Never use a pressure washer to clean your boat.

• Use an air compressor or a can of compressed air to dry the boat and help remove any water that may have gotten into small crevices or corners.
• Spray the bearings, fasteners, and other metal parts with a water-displacing light oil or lubricant. Do not spray the motor.
• Let the boat air dry before you store it. Water (and oil) may continue to drip for a few hours.

Box Contents

• Pro Boat® Miss GEICO Zelos® 36-Inch Brushless Catamaran
• SpektrumTM SLT3 2.4GHz
• SpektrumTM SR315 3-CH DSMR® Receiver
• Dynamite® 120A Brushless 2­6S Marine ESC (DYNM3878) (2)
• SpektrumTM 9KG Servo, Waterproof, Metal, 23T (SPMS605)
• Dynamite® 1900Kv 4-Pole Brushless Marine Motor (DYNM3915) (2)

Product Inspection

Carefully remove the boat and radio transmitter from the box. Inspect the boat for damage. If you find the damage is present, please contact the retailer where you purchased your boat.

Recommended Tools and Materials

• Needle nose pliers
• Paper towel
• Rubbing alcohol
• Open-end wrench: 10mm (2)
• Nut driver: 4mm, 5.5mm, 8mm (DYNT0502)
• Phillips screwdriver: #1
• Hex wrench: 1.5mm, 2mm, 2.5mm, 3mm (DYNT0502)
• Clear tape (DYNM0102)
• Pro Boat® Marine Grease and Gun (DYNE4200)
• Clean towels
• CA or Epoxy Glue (DYNK0030)
• Ball driver: 2.5mm
• 2 metric rulers

Battery and Battery Charger

This product does not come with a battery. We recommend two (2) Spektrum 7.4V 5000mAh 2S 100C Smart Hardcase LiPo Battery: IC5 (SPMX50002S100H5) or two (2) Spektrum 11.1V 5000mAh 3S 100C Smart Hardcase LiPo Battery: IC5 (SPMX50003S100H5)
This product does not come with a charger. Choose a charger designed to charge the recommended (2) Spektrum 7.4V 5000mAh 2S 100C Smart Hardcase LiPo Battery: IC5 (SPMX50002S100H5), or (2) Spektrum 11.1V  5000mAh 3S 100C Smart Hardcase LiPo Battery: IC5 (SPMX50003S100H5)We recommend the Spektrum Smart S2100 AC Charger, 2x100W (SPMXC1010).
Refer to your charger manual for charging instructions and safety information.
NOTICE: Never charge a battery in the boat or damage may result.

Transmitter Functions

Specifications

Power Supply: 4 AA Batteries
Operating Frequency: 2.4GHz
Transmit Power : <100mw
Control Protocol: SLT
Control: Proportional Steering and Throttle/Brake with Trim Knobs, Third Channel with 3
Position Momentary Switch
Auxiliary Functions: 3 Position Throttle Limit Switch, Steering Rate Knob to Change
Steering Travel on-the-fly, Programmable Servo Travel for Steering and Throttle/Brake
A. Throttle Trim
Adjusts the throttle neutral point
B. Steering Trim
Adjusts the steering center point. Normally, the steering trim is adjusted until the
vehicle tracks straight.
C. LED

• Solid red lights: Indicates the power is ON and adequate battery power
• Flashing red lights: This 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 the A button, press down for the B button

H. Throttle Limit
Limits throttle output to 50/75/100%
Select 50% or 75% for less experienced drivers or when you are driving the vehicle in
a small area.
I. Throttle (TH) Servo Reversing
Move the switch to reverse the throttle channel
J. Steering (ST) Servo Reversing
Move the switch to reverse the steering channel
K. Power Button

Installing the transmitter Batteries

This transmitter requires 4 AA batteries.

1. Remove the battery cover from the transmitter.
2. Install the batteries as shown.
3. Install the battery cover.

CAUTION: If using rechargeable batteries, charge only rechargeable batteries. Charging non-rechargeable batteries may cause the batteries to burst, resulting in injury to persons and/or damage to property.
CAUTION: Risk of explosion if the battery is replaced by an incorrect type. Dispose of used batteries according to national regulations.

Factory Reset

There is a hidden mode if you want to reset the servo travel and calibration in the transmitter.

• Hold full left and full brake while powering the transmitter ON to put the transmitter into programming mode.
  The LED will flash 4 times then turns OFF to indicate factory reset.

• Release the wheel and throttle trigger back to neutral and the LED will illuminate to indicate factory reset is complete.

• Power the transmitter OFF.

SPMSR315 Dual Protocol Receiver

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.

Receiver Antenna

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.

Binding to SLT

Binding is the process of programming the receiver to recognize the GUID (Globally Unique Identifier) code of a single specific transmitter.
Binding Procedure

1. Power ON the receiver, press the bind button three times quickly (within 1.5 seconds of the first button press). The LED will begin to flash with a pause.
2. Set the trims and control positions at the desired failsafe settings and power ON the SLT3 transmitter.
3. When the LED on the SLT3 transmitter and receiver remain lit, binding is complete.

You must rebind when:

• Different failsafe positions are desired e.g. when throttle or steering reversing has been changed.
• Binding the receiver to a different transmitter.

Binding to DSMR/DSM2
Binding Procedure

1. Push and Hold Bind Button
2. Power on Reciever
3. Release Button after RX goes into Bind Mode (flashing LED)
4.  Place transmitter in Bind Mode and finish Binding.

Failsafe

In the unlikely event that the radio connection is lost during use, the receiver will drive the servos to their preprogrammed failsafe positions asset during Binding.
If the receiver is powered on before powering on the transmitter, the receiver will enter this failsafe mode. When the transmitter is powered on, normal control is resumed.
IMPORTANT: Failsafe activates only in the event that a signal is lost from the transmitter. Failsafe will NOT activate in the event that receiver battery power decreases below the recommended minimums or power to the receiver is lost.

Antenna Tube Installation

Install the receiver antenna in the tube as shown. We recommend extending the antenna outside of the boat to the maximum length allowable. Exposing the antenna fully outside of the hull will provide the best possible range and allow the use of the boat a long distance. Leaving the antenna within the hull of the boat and mounting a short antenna tube will affect the receiver’s range.
Keep the end of the antenna above the boat’s waterline to get the best transmitter reception.
NOTICE: Do not cut or kink the receiver antenna or damage may result.

Battery Pack Selection

When selecting the batteries for your boat it is important to remember that the limit to each speed control is 22.2V (6S).
WARNING: Maximum battery voltage specification is 22.2V (6S). Exceding the 22.2V limit will damage the ESCs and may result in fire or personal injury.
The included adapter which is packaged in the boat and connected to the speed controls is intended to only be used with two (2) of the recommended batteries to power both speed control with voltage not to exceed 22.2V (6S). The adapter combines the voltage of 2 batteries in series and splits the voltage to power each speed control. The included adapter should never be used with any other type of adapter.
WARNING: Do not use the adapter if you decide to use packs of a voltage higher than 11.1V (3S). This will damage the ESCs and may result in fire or personal injury.

WARNING: Do not use the included adapter if you intend to use a single 14.8V (4s), 18.5V (5s), or 22.2V (6s) pack to power each speed control. This will damage the ESCs and may result in a fire or personal injury.
Using two (2) batteries, 7.4 (2S) or 11.1 (3S) with the included adapter will yield speeds ranging from 50-65 mph, depending on the battery’s mAh and C rating. For optimal performance and speeds of 75+ mph, we recommend using two (2) 11.1V (3S) packs in series to power each ESC with 22.2V (6S). Powering each ESC with 22.2V (6S) requires two (2) SPMXCA506 adapters to join each set of 11.1V (3S) batteries for a combined voltage of 22.2v (6S).

Battery Pack Installation

Batteries can be installed in this boat using either a 2-battery or 4-battery configuration. 3S 11.1V LiPo batteries can be used, but all batteries used in a configuration must be of the same voltage, milliamp, Crating, and in roughly the same condition. If you are using a 2-battery configuration, use the included battery adapter to connect two (2) batteries in series, then connect the battery series to both ESCs in parallel. If you are using a 4-battery configuration, DO NOT USE THE INCLUDED ADAPTER. Instead, use two (2) 10 AWG EC5TM Battery Series Harnesses (SPMXCA506 ­ NOT INCLUDED ) to create two (2) sets of two (2) batteries connected in series, then connect each series directly into the ESCs.
Do not supply more than 6S to either ESC.

1. Loosen the 4 screws located at each corner of the canopy.

2. Remove the canopy from the hull starting with the 2 rear screws. Ensure that the 4 screws have disengaged from their bases before lifting the canopy carefully.

3. Install the batteries all the way forward in the battery trays. Drive and test, move the battery back 1/4 in (10mm) increments until the boat drives as desired.
   NOTICE: Moving the battery packs back too far will result in the boat becoming unstable and flipping backward which could result in damage to the fiberglass hull.
   Tip: To prevent the batteries from sliding forward or back in the tray, we recommend installing either the included padding or hook and loop tape to secure the batteries to the trays.

4. Connect the battery packs to each of the adapters, or to each ESC’s EC5TM connector.
   WARNING: The included adapter should ONLY be used for 2-battery configurations. Using the included adapter in a 4-battery configuration will damage the ESCs and may result in fire or personal injury.
   Tip: Move the pack forward or back to adjust the center of gravity for your boat. Move the pack toward the bow so the bow rides lower in the water. Move the pack away from the bow so that the bow rides higher in the water.

Positioning the Battery Packs

• Toward the Bow: In rough water or strong wind conditions, place the battery packs at the front of the battery trays to ensure the greatest stability.
• Centered: Smooth water and calm winds may allow you to move the battery packs rear-ward in the hull to allow the bow to ride higher and increase speed. Be aware that positioning the batteries farther aft increases the likelihood of the boat blowing over at speed or becoming unstable.
• Toward the Stern: Positioning the batteries all the way back in their trays may provide higher top speeds but can cause instability. Experiment with this position only in very calm conditions while closely monitoring the hull’s attitude as you increase speed.

Control Check

IMPORTANT: Perform a control check at the beginning of each boating session, after repair, or after installation of new batteries.
Ensure the receiver antenna is extended properly and all batteries are fully charged.

1. Power ON the transmitter and the boat. Do not install the boat canopy.

2. Place the boat securely on the boat stand.
   NOTICE: Do not operate the motor without water cooling circulation or damage may result.

3. Check steering and throttle on the transmitter.

Getting Started

1. Remove the canopy from the hull.

2. Install the receiver antenna in the antenna tube.

3. Install the fully charged batteries in the compartment and secure them with the hook and loop straps.

4. Power on the transmitter. Ensure the throttle is not reversed and the throttle trim is neutral.

5. Connect the battery to the ESC.

6. Keep the throttle at neutral and power on both ESCs simultaneously by sliding the power switches to the ON position.
   · Once armed, the ESC will beep and the LED will flash, indicating the number of battery cells it has detected.
   · The ESCs are joined with a Y harness, ensuring that only one ESC powers the receiver. If the ESCs are powered on one at a time, the receiver may not power up. The secondary ESC will beep and the LED will flash every 3 seconds until the primary ESC is armed. The LED will turn solid when the ESC is armed.

7. Install the canopy on the hull.

NOTICE: We recommend applying marine tape (DYNM0102) around the canopy to prevent water from entering the hull.
NOTICE: We recommend spaying automotive wax in the location where tape may be used to prevent the tape from damaging the finish of the hull. Tape may pull the clear off the hull when removed.

When You Are Finished

1.  Power off the ESCs by sliding the power switch to OFF.

2. Disconnect and remove the battery from the boat.

3. Power off the transmitter.

4. Drain water from inside the hull using the drain plug.

5.  Fully dry the inside and outside of the boat, including the water cooling lines and jacket around the motor.

6.  Remove the canopy before storage or moisture may allow mold and mildew to grow in the boat.

7. Repair any damage or wear to the boat.

8. Lubricate the fl ex shaft using Pro Boat® Marine Grease (DYNE4200 or DYNE4201) (see, Drivetrain Lubrication ).
   NOTICE: Never store the boat without greasing the fl ex shafts or they may rust.

9.  Make note of lessons learned from the trimming of your boat, including water and wind conditions.

NOTICE : Never leave the boat in direct sunlight or in a hot, enclosed area such as a car. Doing so can damage the boat.

Boating Tips
During the first run, we recommend calm wind and water conditions to ensure that the boat is properly set up. Maximum speeds of 75 MPH/+ can be achieved once you have set up the boat for your specific conditions. Consult local laws and ordinances before choosing a location to pilot your boat.

1.  Carefully place the boat in the water.
2. Operate the boat at slow speeds near the shoreline. Avoid objects in the water at all times. When the boat is moving forward, ensure water flows out of the coolant outlet.
3.  Once you are comfortable operating the boat at slow speeds, it is safe to operate the boat farther from the shore at higher speeds.
4.  When making turns, decrease the throttle to reduce the probability of flipping the boat over.
5. Bring the boat back to shore when the motor starts to pulse.

CAUTION: Never attempt to retrieve a downed boat by swimming. If you need to retrieve your boat from the water, use fishing equipment or another boat.
NOTICE: Never operate your boat in less than 12 inches (30.5 cm) of water.
NOTICE: When running at full speed in choppy water, the propeller may exit and re-enter the water repeatedly and very quickly, subjecting the propeller and driveshaft to some stress. Frequent stress may damage the propeller and driveshaft.

In rough water and windy conditions, consider:

•  mounting the batteries further forward for added stability
•  adjusting the struts downward to prevent the boat from overturning
•  Do Not drive directly into the wind. The boat will flip easily which may result in damage to the hull.

Avoid boating near:

• watercraft
• people (swimming areas, fishing areas)
•  stationary objects
•  waves and wakes
•  rapidly moving water
• wildlife
• floating debris
• overhanging trees
• vegetation

Strut Angle Adjustment
Your boat’s propeller struts have been adjusted to provide the best performance while powering your boat with 22.2v (6S). The length of the struts allows for adjustments to be noticed much easier than the earlier Zelos 36 Twin (PRB08021).
There is no need to adjust your struts while using the boat in OEM form. You can adjust the boat’s ride attitude by moving your battery packs either forward of back on the battery tray.
We suggest only adjusting the struts when changing the included propellers with your choice of optional propellers. Use two metric rulers to adjust the struts; one must be at least 304.8mm.
WARNING: Never attempt to adjust the propeller struts with the propellers installed or while the boat is powered on. Severe bodily harm can occur.

1. Remove the batteries and ensure the boat is powered off.

2. Use a 2.5mm hex wrench and a 5.5mm nut driver or open-end wrench to loosen the stainless steel bolt that holds the strut’s angle.

3. Remove the propeller for the strut that needs adjustment.

4.  Place a ruler lengthwise along the length of the rearmost ride pad. Placing the ruler along more than just the rearmost ride pad will result in mismeasurement and could negatively affect the ride attitude of your boat.

5. Place the second ruler across the first ruler, forming a 90-degree angle against the propeller strut.

6.  Measure the distance between the bottom ruler and the propeller strut, at the propeller strut’s farthest point.

7. Make strut adjustments in intervals of 0.5mm to 1mm. Record the first strut adjustment and repeat the process on the second strut. The boat is sensitive to strut angle adjustment.
   NOTICE: Do not adjust strut angles greater than 4 degrees positively (up) or negatively (down). If the boat requires more than 4 degrees of adjustment to run well, check the battery placement and ensure that both struts are even.

8.  Once the first strut is adjusted, carefully tighten the 2.5mm screw and 5.5mm nut that hold the strut’s angle. Double-check the measurement to verify the strut has not moved. If the measurement has not changed, tighten the screw completely.

9. Repeat this process on the second strut. Once both struts are adjusted, repeat processes 4-6 on both struts to ensure that the struts are even.

10.  Once you have made adjustments, your boat is in the water and you are ready to test your adjustments, get your boat on plane, and ease into full throttle slowly, watching for erratic behavior. Your boat should run mostly on the last 2 ride pads, bouncing slightly as it passes over its own wake or cuts through chop. It should not be lifting the nose and slapping the water while running at full speed.

Tip: Keep a log of the strut adjustments, water conditions, and battery weight/sizes that may have required strut adjustment.

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Maintenance

Drivetrain Lubrication
Always replace the drivetrain parts when they are damaged or show visible wear or injury and damage may result.
Lubricating the drive shaft is vital to the life of the drivetrain. The lubricant also acts as a water seal, keeping water from entering the hull through the stuffing tube.
We recommend lubricating the flex shafts after every use, not to exceed 15 minutes of use.
Remove one flex shaft at a time, or mark the shafts as right or left. The shafts are directional and if installed improperly, severe damage to the shaft assembly and housing will result.

1.  In the hull, use two 10 mm open-end wrenches to loosen the motor coupler ( C).

2.  Slide the driveshaft out from the stuffing tube and drive strut at the rear of the boat.

3. Wipe the old lubricant and material from the drive shaft.
   NOTICE: When lubricating the flex shaft, do not lubricate the first 20mm of the flex shaft. If grease gets into the motor coupler, it may cause the flex shaft to slip inside of the coupler, thereby damaging it and requiring replacement.

4. Carefully reinstall the driveshaft, ensuring that there is a 2.5mm gap between the propeller strut and the drive dog. This will allow space for the shaft as it shrinks under load. Without space, the drive dog could damage the aluminum propeller strut.
   NOTICE: Ensure the flex shaft is installed correctly. Installing the flex shaft incorrectly may result in irreparable damage to the boat.

5. Carefully push the flex shaft into the motor coupler, making sure the grease does not carry into the coupler.

6. Tighten the coupler using two 10mm open-end wrench- es.

NOTICE: Running the boat in saltwater could cause some parts to corrode. If you run the boat in salt water, rinse it thoroughly in freshwater after each use, lubricate the drive system, and flush the coolant system.

Propeller Service

1. Use an 8mm nut driver to loosen the nut (A) from the driveshaft (B).
2. Remove the nut and propeller (C) from the driveshaft.
3. Inspect the propeller for any damage or wear and replace as necessary.
4. Assemble in reverse order. Correctly align the propeller with the drive dog on the driveshaft.

NOTICE: The counter-rotating propellers must rotate inward. The clockwise propeller goes on the left and the counterclockwise propeller goes on the right.

Throttle Range Calibration

1. Power on the transmitter and set the throttle TRIM dial to the center position.

2.  Install the batteries in the boat and connect the batteries to the ESCs.

3. With the ESCs powered off, pull the throttle trigger to full throttle and power ON both ESCs simultaneously. The ESCs will beep twice. The green light
   will fl ash with each beep.

4. Return the throttle to neutral. The ESCs will beep once and the green light will fl ash once.

The calibration process is now complete. The ESCs will arm with beeps and fl ashes to announce the number of battery cells it has detected. Reverse calibration is unnecessary.

Water Cooling System

If water does not stream out of the water outlets while the boat is moving forward, immediately stop the boat and clean the obstruction from the water cooling system.

1. Disassemble and clean the water cooling system to remove the blockage and prevent overheating.
2. Replace any damaged parts.

NOTICE: The boat must run at least 30mph in order to force water through the cooling system. Running the boat below 30mph will prevent water from circulating through the electronics, causing them to overheat and possibly become damaged.

Low Voltage Cutoff (LVC)

The factory default setting for the LVC in the ESC included with your boat is set at 3.2V per cell. Discharging a Li-Po battery below 3V per cell may damage your battery. The included ESC protects the boat battery from over-discharge using Low Voltage Cutoff (LVC). Before the battery charge decreases too much, LVC removes power supplied to the motor.
The boat drastically slows or stops completely once LVC is activated. Releasing the throttle and reapplying it will provide a limited amount of power to safely return the boat to shore.
Once LVC has been activated, the ESC status light will flash red continuously indicating that the ESC is in LVC mode.

NOTICE: Repeated operation to LVC will damage the battery.
LVC can activate prematurely if you use (1) low C-rated batteries or (2) old, worn, and/or weak batteries. The average run time—using the recommended
batteries (DYNB3810EC or DYNB3811EC)—is between 3–4 minutes at non-stop, open throttle. Limited run time may indicate worn or weak batteries.
Tip: If you’ve installed freshly charged batteries, and LVC activates within the fi first minute of operation, replace your worn or weak batteries with the recommended batteries.
Tip: Monitor your boat battery’s voltage before and after boating by using a Li-Po Cell Voltage Checker (EFLA111, sold separately).

Electronic Speed Control (ESC) Programming

STEP 1: Enter Program Mode
1. Power on the transmitter and set the throttle to full. 2. Connect the battery pack to the ESC. After 2 seconds,
the ESC will beep twice. 3. Wait 5 seconds and the ESC will emit a musical tone.

STEP 2: Select Programmable Item
The ESC will emit four groups of beeps in a loop.
Move the throttle to neutral within 3 seconds of the tone matching the item you want to select.

STEP 3: Set-Item Value
After selecting a programmable item, you will hear several tones in a loop.

1. Move the throttle to full to select the value matching the tone. The ESC will emit an alternating tone to indicate selection.
2. Keep the throttle in full to return to Step 2 and continue item selection. Move the throttle to the neutral within 2 seconds to exit the Program Mode.

STEP 4: Exit Program Mode

1. In Step 3, after hearing the alternating tone, move the throttle to neutral within 2 seconds.
   –or–

2. Disconnect the battery pack from the ESC.

ESC Programming Procedure

Programming can be accomplished using the Dynamite® LED Program Card (DYNS3005, sold separately) or via the transmitter. Please refer to your DYNM3875 manual for transmitter programming instructions.

B                      BB            BBB         BBBB       Beep— Beep—B         Beep—BB                            Beep—BBB

1 short
beep| 2 short
beeps| 3 short
beeps| 4 short
beeps| 1 long
beep| 1 long
1 short| 1 long

2 short

| 1 long

3 short

Forward
Only| Forward/
Reverse| | | |
Auto-Calcu-
late| 2S| | 3S| 4S| 5S                     6S
No-protec-
tion| 2.8V/Cell| | 3.0V/Cell| 3.2V/Cell| 3.4V/Cell
0.00°  II| 3.75°| | 750°| 11.25°| 15.00°                    18.75° 22.50°         26.25°

Programmable Items

1. Running Mode
2. Li-Po Cells
3. LVC Threshold
4. Timing

Troubleshooting Guide

Replace damaged parts
Propeller is out of balance| Balance or replace the propeller
Boat squeals or makes a high pitched sound when applying power to motors| Lubricate fl ex shafts
Reduced runtime or boat underpowered| Boat battery charge is low| Completely recharge battery
---|---|---
Boat battery is damaged| Replace boat battery and follow battery instructions
Blocking or friction on shaft or propeller| Disassemble, lubricate and correctly align parts
Boat conditions may be too cold| Make sure the battery is warm (above 10º C [50º F]) before use
Battery capacity may be too low for conditions| Replace battery or use a larger capacity battery
Drive dog is too near the stuffi ng tube| Loosen drive shaft side of the motor coupling  and move drive shaft small amount back
Too little lubrication on the driveshaft| Fully lubricate driveshaft
Vegetation or other obstacles block rudder or propeller| Remove vegetation or obstacles from rudder or propeller
Motor couplers are loose| Tighten motor couplers and ensure the coupler is free of lubrication
Boat will not bind (during binding) to the transmitter| The transmitter is too near the boat during the binding process| Move powered transmitter a few feet from boat, disconnect and reconnect the battery to boat
Boat or transmitter is too close to a large metal object, wireless source or another transmitter| Move the boat and transmitter to another location and attempt binding again
The boat will not connect (after binding) to the transmitter| Another compatible transmitter is powered

on within range of the receiver

| Power off all compatible transmitters except the one you are trying to bind
Boat battery/Transmitter battery charge too low| Replace/recharge batteries
ESC switch is off| Power on ESC switch
The boat will not connect (after binding) to the transmitter| The transmitter is too near the boat during the connecting process| Move powered transmitter a few feet from the boat, disconnect and reconnect the battery to boat
The boat or transmitter is too close to a large metal object, wireless source, or another transmitter| Move boat or transmitter to another location and attempt to connect again
Boat battery/transmitter battery charge is too low| Replace/recharge batteries
ESC switch is off| Replace/recharge batteries
The boat tends to dive in the water or takes on water| The boat hull is not completely closed| Dry out the boat and ensure the hatch is fully closed on the hull before returning the boat to the water
The Center of gravity is too far forward| Move batteries back in the hull
The boat tends to turn in one direction| Rudder or rudder trim is not centered| Repair rudder or adjust rudder and rudder trim for straight running when control is at neutral
ESC may require full throttle range calibration| Calibrate the ESC
Rudder does not move| Rudder, linkage or servo damage| Replace or repair damaged parts and adjust controls
Steering servo wire is damaged or connections are loose| Do a check of steering servo wires and connections, connect or replace as needed
The transmitter is not bound correctly| Re-bind
BEC (Battery Elimination Circuit) of the ESC is damaged| Replace ESC
ESC switch is off| Power on ESC switch
Controls reversed| Transmitter settings are reversed| Do the Control Direction Test and adjust controls on the transmitter appropriately
Motor overheats| Blocked water cooler tubes| Clean or replace water tubes
Weather conditions might be too cold| Postpone until weather is warmer
The battery is old, worn out, or damaged| Replace battery
Boat blows over upon acceleration| Batteries are too far back in the battery tray| Move the batteries forward to adjust the boat’s center of gravity
Struts have too much positive angle, causing the nose of the boat to lift and blow over| Adjust a more neutral or negative strut angle
| Water conditions are too choppy or windy| Adjust the struts downward to drive the bow of the boat down or move the batteries further forward for better weight distribution

Limited Warranty

What this Warranty Covers
Horizon Hobby, LLC, (Horizon) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship at the date of purchase.
What is Not Covered
This warranty is not transferable and does not cover (i) cosmetic damage, (ii) damage due to acts of God, accident, misuse, abuse, negligence, commercial use, or due to improper use, installation, operation, or maintenance, (iii) modification of or to any part of the Product, (iv) attempted service by anyone other than a Horizon Hobby authorized service center, (v) Product not purchased from an authorized Horizon dealer, or (vi) Product not compliant with applicable technical regulations or (vii) use that violates any applicable laws, rules, or regulations.
OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES NO OTHER WARRANTY OR REPRESENTATION, AND HEREBY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
Purchaser’s Remedy
Horizon’s sole obligation and purchaser’s sole and exclusive remedy shall be that Horizon will, at its option, either (i) service, or (ii) replace, any Product determined by Horizon to be defective. Horizon reserves the right to inspect any and all Product(s) involved in a warranty claim. Service or replacement decisions are at the sole discretion of Horizon. Proof of purchase is required for all warranty claims. SERVICE OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY.
Limitation of Liability
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY, OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Further, in no event, shall the liability of Horizon exceed the individual price of the Product on which liability is asserted. As Horizon has no control over use, setup, final assembly, modification, or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. By the act of use, setup, or assembly, the user accepts all resulting liability. If you as the purchaser or user are not prepared to accept the liability associated with the use of the Product, the purchaser is advised to return the Product immediately in new and unused condition to the place of purchase.
Law
These terms are governed by Illinois law (without regard to conflict of law principles). This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Horizon reserves the right to change or modify this warranty at any time without notice.
WARRANTY SERVICES
Questions, Assistance, and Services
Your local hobby store and/or place of purchase cannot provide
warranty support or service. Once assembly, setup, or use of the Product has been started, you must contact your local distributor or Horizon directly. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance. For questions or assistance, please visit our website at www.horizonhobby.com, submit a Product Support Inquiry, or call the toll-free telephone number referenced in the Warranty and Service Contact Information section to speak with a Product Support representative.
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 are not designed to withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted at our facility. An Online Service Request is available at http://www.horizonhobby.com/content/service-center_renderservice- center. If you do not have internet access, please contact Horizon Product Support to obtain an RMA number along with instructions for submitting your product for service. When calling Horizon, you will be asked to provide your complete name, street address, email address, and phone number where you can be reached during business hours. When sending product into Horizon, please include your RMA number, a list of the included items, and a brief summary of the problem. A copy of your original sales receipt must be included for warranty consideration. Be sure your name, address, and RMA number are clearly written on the outside of the shipping carton.
NOTICE: Do not ship Li-Po batteries to Horizon. If you have any issues with a Li-Po battery, please contact the appropriate Horizon Product Support office.
Warranty Requirements
For Warranty consideration, you must include your original sales receipt verifying the proof-of-purchase date. Provided warranty conditions have been met, your Product will be serviced or replaced free of charge. Service or replacement decisions are at the sole discretion of Horizon.
Non-Warranty Service
Should your service not be covered by warranty, service will be completed and payment will be required without notification or estimate of the expense unless the expense exceeds 50% of the retail purchase cost. By submitting the item for service you are agreeing to payment of the service without notification. Service estimates are available upon request. You must include this request with your item submitted for service. Non-warranty service estimates will be billed a minimum of ½ hour of labor. In addition, you will be billed for return freight. Horizon accepts money orders and cashier’s checks, as well as Visa, MasterCard, American Express, and Discover cards. By submitting any item to Horizon for service, you are agreeing to Horizon’s Terms and Conditions found on our website http://www.horizonhobby. com/content /service-center_render-service-center.
ATTENTION: Horizon service is limited to Product compliant in the country of use and ownership. If received, a non-compliant Product will not be serviced. Further, the sender will be responsible for arranging return shipment of the un-serviced Product, through a carrier of the sender’s choice and at the sender’s expense. Horizon will hold non-compliant Products for a period of 60 days from notification, after which they will be discarded.

Warranty and Service Contact Information

Country of

Purchase

| Horizon Hobby| Phone Number/Email Address| Address
---|---|---|---
North America| Horizon Service Center

(Repairs and Repair Requests)

| servicecenter.horizonhobby.com/

RequestForm/

| 2904 Research Rd

Champaign, Illinois, 61822 USA

Horizon Product Support

(Product Technical Assistance)

| productsupport@horizonhobby.com
877-504-0233
Sales| | Country of

Purchase

| Horizon Hobby| Phone Number/Email Address| Address
---|---|---|---
North America| Horizon Service Center

(Repairs and Repair Requests)

| servicecenter.horizonhobby.com/

RequestForm/

| 2904 Research Rd

Champaign, Illinois, 61822 USA

Horizon Product Support

(Product Technical Assistance)

| productsupport@horizonhobby.com
877-504-0233
Sales| websales@horizonhobby.com
800-338-4639
European Union| Horizon Technischer Service| service@horizonhobby.eu| Hanskampring 9

D 22885 Barsbüttel, Germany

Sales: Horizon Hobby GmbH| +49 (0) 4121 2655 100
800-338-4639
European Union| Horizon Technischer Service| service@horizonhobby.eu| Hanskampring 9

D 22885 Barsbüttel, Germany

Sales: Horizon Hobby GmbH| +49 (0) 4121 2655 100

FCC Information:
FCC ID: BRWSPMSLT300
FCC ID: BRWSRIRVINGV1
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• 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
  IC: 6157A-SPMSLT300
  IC: 6157A-SRIRVINGV1
  CAN ICES-3 (B)/NMB-3(B)
  This device contains license-exempt transmitter(s)/receivers(s) that comply with Innovation, Science, and Economic Development Canada’s licenseexempt RSS(s). Operation is subject to the following 2 conditions:

1. This device may not cause interference.
2.  This device must accept any interference, including interference that may cause undesired operation of the device.

EU Compliance Statement: Hereby, Horizon Hobby, LLC declares that the device is in compliance with the following: EU Radio Equipment Directive 2014/53/EU; RoHS 2 Directive 2011/65/EU RoHS 3 Directive – Amending 2011/65/EU Annex II 2015/863
The full text of the EU declaration of conformity is available at the following internet address: https://www.horizonhobby.com/content/support-rendercompliance. Wireless Frequency Range and Wireless Output Power SLT3 Transmitter Max EIRP:16.3 Frequency Range:2403-2480MHz SR315 Receiver Max EIRP: -1.33dBm Frequency Range: 2404-2476MHz EU Manufacturer of Record:
Horizon Hobby, LLC 2904 Research Road Champaign, IL 61822 USA EU Importer of Record:
Horizon Hobby, GmbH Hanskampring 9 22885 Barsbüttel Germany

Wireless Frequency Range and Wireless Output Power
SLT3 Transmitter
Max EIRP:16.3
Frequency Range:2403-2480MHz
SR315 Receiver
Max EIRP: -1.33dBm
Frequency Range: 2404-2476MHz
EU Manufacturer of Record:
Horizon Hobby, LLC
2904 Research Road
Champaign, IL 61822 USA
EU Importer of Record:
Horizon Hobby, GmbH
Hanskampring 9
22885 Barsbüttel Germany

WEEE NOTICE:

This appliance is labeled in accordance with European Directive 2012/19/EU concerning waste of electrical and electronic equipment (WEEE). This label indicates that this product should not be disposed of with household waste. It should be deposited at an appropriate facility to enable recovery and recycling.

Antenna Separation Distance

When operating your Spektrum transmitter, please be sure to maintain a separation distance of at least 5 cm between your body (excluding fi fingers, hands, wrists, ankles and feet) and the antenna to meet RF exposure safety requirements as determined by FCC regulations.
The following illustrations show the approximate 5 cm RF exposure area and typical hand placement when operating your Spektrum transmitter.

Replacement Parts

Cent. Case 23T
|

Optional Parts

DYNS3005 Start Up Tool Set:
Proboat
DYNT0502 Li-Po Cell Voltage

Checker

EFLA111|  KX50D Duo 2 x 50W
AC/DC Charger
EFLAEC512| EC5 Device Charge
Lead with 6” Wire &
Jacks, 12Awg
KXSC1004| KX50D Duo 2 x 50W
AC/DC Charger
SPM5000| DX5R 5CH DSMR Tx
w/SR6000T

6 5813.1 Updated: 06/2021
©2021 Horizon Hobby, LLC.
Pro Boat, the Pro Boat logo, Zelos, Dynamite, EC5, IC5, SLT3, DSM, DSMR, and the Horizon Hobby logo are trademarks or registered trademarks of Horizon Hobby, LLC. The Spektrum trademark is used with permission of Bachmann Industries,
Inc. All other trademarks, service marks, and logos are property of their respective
owners. US 9,930,567. US 10,419,970. US 10,849,013. Other patents are pending.

Documents / Resources

| GEICO PRB08040 36-Inch Twin Brushless RTR Boat [pdf] Owner's Manual
36-INCH TWIN BRUSHLESS RTR BOAT, PRB08040
---|---

References

• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• Horizon Hobby Service Center
• RC Cars, RC Trucks, RC Airplanes, Model Trains, and Slot Cars at Tower Hobbies
• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby

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