Joysway Mad Shark V2 Brushless - Instruction manual
Mad Shark V2 Brushless
Introduction
Mad Shark V2 Brushless is a fast F1-style catamaran with water-cooled brushless propulsion and a flood chamber for self-righting. This manual does not apply to Mad Shark V3 Brushed.
Specifications
| Parameter | Description |
|---|---|
| Manufacturer model | 8205V2 |
| Hull / total length | 368 / 443 mm |
| Beam / RTR weight | 172 mm / 600 g |
| Speed | >45 km/h |
| Drive / ESC | Water-cooled brushless motor / 30 A with BEC |
| Servo / flex shaft | 9 g / Ø2.3 mm |
| Recommended drive battery | 3S LiPo 11.1 V 1300 mAh ≥35C; Dean-T |
Safety notes
This high-speed model is not a toy. The supplied instructions permit independent use only by persons older than 15. Read the complete manual and test radio range before every run. Keep hands and clothing clear of the propeller; disconnect the drive battery before touching the drive. Metal parts may be sharp and the motor may remain hot after use.
Use this model only in fresh water, in an open area away from swimmers, people, animals and aquatic plants. Do not operate in confined water, rain or thunderstorms. If lightning or thunder occurs, stop operating and disconnect the model safely.
Never enter deep water or a strong current to retrieve a model. If control is lost, first raise the transmitter to try to restore the link. Use a safe recovery method from shore; do not put yourself or anyone else at risk.
Charge outside the model under adult supervision, on a nonflammable surface. Do not leave charging unattended. Use only the correct charger for the battery chemistry and cell count. Never short-circuit, dismantle, crush or burn a battery. Stop using a damaged, swollen or abnormally hot pack. Disconnect it after use and recycle exhausted batteries appropriately.
Contents and required equipment
Included: boat, transmitter in the RTR version, spare propeller, Dean-T connector with heat-shrink tubing, stand, receiver balloon, rubber band and 2.5mm and 2mm hex keys. Add a Phillips screwdriver, 4 AA transmitter cells, the specified drive battery and a suitable balance charger. The local RC Set supplement includes the 3S pack and B3 charger; check the actual package before buying accessories.
Main section
Battery charging
Use a LiPo balance charger suitable for the specified cell count. If fitting the supplied power connector, match polarity to the ESC: red is positive (+), black is negative (−). Only undertake soldering if competent; insulate each connection and avoid short circuits. Follow the battery and charger instructions.
B3 charger: local RC Set only
The RC Set supplement supplies a 3S LiPo 11.1 V 1300 mAh pack. Its Dean-T power connector feeds the ESC; its JST-XH balance connector connects to the B3 charger.
- Remove the pack from the boat. Place charger and pack on a nonconductive, nonflammable surface away from combustibles; never charge in a car. Plug the mains lead into the charger and then into the mains outlet before connecting a battery. Green LEDs with red flickers indicate standby.
- Connect the JST-XH plug to the matching 2S or 3S socket. Charge only one pack at a time: never connect both sockets. For 2S, Cell 1 and Cell 2 show steady red while charging; for 3S, Cell 1, Cell 2 and Cell 3 show red.
- A cell’s LED turns green when charged. Charging is complete only when every LED for the connected cells is green. Disconnect the pack first, then unplug the charger from mains if finished.
Never leave charging unattended. Stop immediately and disconnect the pack if it swells or its temperature rises rapidly. Slight warmth at the end may occur, but the pack must not become hot. Use this charger only with compatible LiPo packs.
Transmitter and receiver
- Install 4 AA alkaline cells or charged NiMH cells in the transmitter handle, observing the marked polarity. Switch ON: the red power LED should light. The transmitter is not waterproof; keep it dry.
- Check the receiver wiring: steering servo to channel 1, ESC to channel 2. The ESC’s BEC supplies the receiver through its lead; no separate receiver battery is required. Enclose the receiver in the supplied rubber balloon and secure its opening around the leads with the supplied tie or rubber band.
Opening the hull and fitting the battery
- With the drive battery disconnected, release the front catch first, then the 4 upper side catches. Lift off the upper hull and support the boat on its foam stand.
- Secure the charged battery on its tray with the hook-and-loop strap. Switch the transmitter on with neutral throttle, then connect the battery to the ESC. Expect a green receiver LED and 3 ESC beeps; complete the binding and control checks below before closing.
- Seat the gasket correctly in its groove around the entire hull opening. Refit the upper hull, secure the side catches first and the front underside catch last.
Binding and startup
The RTR radio is normally bound at the factory. Bind again only if necessary: a red receiver LED indicates no established link.
- Keep transmitter and receiver within 1 m, with no other active 2.4GHz transmitter within 10 m. Keep the throttle at neutral and switch on the transmitter first.
- Connect the drive battery to the ESC, which powers the receiver. Press the receiver’s BIND button. A steady green LED confirms binding. If green continues flashing, repeat the procedure.
- At normal startup, wait for the ESC’s 3 beeps before checking controls. When stopping, disconnect the boat battery first and switch off the transmitter last. Never leave a drive battery connected when the boat is not in use.
Checking direction, trims and travel
- With the boat supported and the propeller clear, turn the steering wheel right. The rudder’s trailing edge must move right; a left command must move it left. Correct a reversed response with ST REV/NOR, then recheck.
- Use ST/TRIM R/L to centre the rudder. Fine-adjust it on the water so the boat runs straight with the wheel centred.
- Set TH/TRIM B/F so the propeller stops with the trigger released. Briefly pull the trigger to check motor response; keep this dry check short because water cooling is not operating.
- Adjust right and left steering limits separately with ST/R and ST/L. Each knob covers 0–100 %: fully left is 0 %, fully right is 100 %. Start with the factory settings and reduce travel if needed; the servo must not force the linkage against a stop.
Viewed from astern, the propeller must rotate anticlockwise when forward throttle is applied. Keep any dry motor test brief because water cooling is inactive. Check steering and radio range before launching.
Flood chamber and self-righting
Mad Shark V2 Brushless: the left-hand flood chamber fills when the boat capsizes and shifts its centre of gravity until it rolls upright. Leave the throttle neutral and wait for the chamber to fill. Once upright, accelerate to drain the water through the stern opening. Keep chamber openings and the air vent clear. Recovery is not guaranteed in every condition; use a safe shore-based method if needed.
Running and low-voltage protection
Inspect every cooling hose and water inlet before launching. Remove blockages and replace damaged or kinked tubing; loss of cooling can damage the motor and ESC. Start near shore and increase speed progressively. Return as soon as maximum speed begins to fall.
The ESC stops the motor at 3.2 V per LiPo cell. If this happens, return the trigger to neutral to reset, then use only enough power to return slowly to shore. End normal runs before cutoff. Repeated resets can deeply discharge and permanently damage the battery.
If the boat starts bobbing unusually, water may have entered the hull. Return immediately, disconnect the battery, remove the hatch and drain and dry the hull.
After sailing and storage
- Disconnect the drive battery first, then switch the transmitter OFF. Remove the boat battery and the transmitter cells.
- Remove the hatch and gasket, wipe out moisture and leave the hull open in a warm, dry place until completely dry. Store the removable gasket separately in a closed plastic bag away from light to preserve its elasticity.
Lubricating the flex shaft
Grease the shaft and plain bearing every 2–3 operating days, or after every operating day if making many runs. Grease reduces wear and helps prevent water entering along the shaft.
- Disconnect all drive batteries before dismantling the drive.
- Use a 2mm hex key to loosen the motor/shaft coupling.
- Withdraw the flex shaft and wipe it with a clean, soft cloth. Apply waterproof marine grease to the shaft and plain bearing; use grease intended for RC boats.
- Reinsert the lubricated shaft fully and securely tighten the coupling screws. Also lubricate the motor’s front bearing in its water-cooled mount periodically with suitable oil or grease to prevent corrosion; this can be done without removing the coupling.
Troubleshooting
| Problem | Checks and remedy |
|---|---|
| Boat does not move | Fit missing cells, connect the pack, correct polarity and charge or replace depleted batteries. |
| No radio response or short range | Check and replace or recharge the transmitter batteries; verify binding before relaunching. |
Appendix
Spare parts
| Part number | Description |
|---|---|
| 820501 | Brushless motor – Mad Shark |
| 820502 | Water-cooled motor mount |
| 820503 | White upper hull and gasket |
| 820504 | Flex shaft set – Mad Shark |
| 820505 | Dummy outboard and rudder set |
| 820506 | 2-blade plastic propeller – Ø32 mm × 1.4; 2× |
| 820508 | Balance charger – 12 V; 3S LiPo |
| 820510 | Rear shaft bearing |
| 820511 | Mains-powered 3S LiPo balance charger |
| 820512 | LiPo 11.1 V 1300 mAh 35C |
| 82034 | Shaft coupling – CF2812 |
| 82058 | Hatch latch set |
| 820902 | Water-cooled brushless ESC with BEC – 30 A |
| 9360518 | Transmitter – J2C93; 2.4 GHz |
| 930519 | Receiver – J2C91R; 2.4 GHz |
Radio specifications
| Parameter | Description |
|---|---|
| Channels: transmitter / receiver | 2 / 4 |
| Frequency / system | 2400–2483.5 MHz / FHSS |
| Maximum transmitter radiated power | <20 dBm |
| Transmitter supply | 4× AA |
| Receiver supply range | 4.8–6.0 V |
Recycling (European Union)
Electrical equipment bearing the crossed-out bin symbol must not be disposed of in normal household waste. Instead, it must be taken to a specialised collection and recycling facility. In EU (European Union) countries, electrical equipment must not be disposed of in normal household waste (WEEE - Waste of Electrical and Electronic Equipment, Directive 2012/19/EU). You can take unwanted equipment to your nearest collection or recycling centre. The equipment will then be disposed of or recycled safely, free of charge. By handing in your unwanted equipment, you can make an important contribution to protecting the environment.
EU Declaration of Conformity
Joysway Hobby International Ltd. hereby declares that the model Mad Shark V2 Brushless and other equipment supplied with it are in compliance with Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following website: https://www.kavanrc.com/doc. This 2.4 GHz radio equipment can be used without prior registration or individual approval in all countries of the European Union.
Warranty and post-warranty service
All Joysway products are covered by a 2-year warranty covering all manufacturing defects and faults. When making a claim within the warranty period, please always present a copy of the proof of purchase with the product and provide the service personnel with as detailed and complete information as possible about the defect found, your usage and other information that will facilitate the assessment of the claim and speed up its settlement. Please make your claim at the shop where you purchased the product.
This warranty certificate entitles you to a free warranty repair of the product supplied by KAVAN Europe s.r.o. within a period of 24 months. The warranty does not cover natural wear and tear due to normal use, as this is a product for modelling use, where the individual parts operate under much higher loads than normal toys are subjected to.
The warranty also does not cover any part of the equipment that has been improperly installed, roughly or improperly handled, or damaged in an accident, or any part of the equipment that has been repaired or altered by an unauthorised person (this includes the application of any waterproof sprays/coatings by the user). Like other fine electronics products, do not expose this equipment to high temperatures, low temperatures, moisture, dusty environments, violent mechanical shocks and impacts. Do not leave it in direct sunlight for extended periods of time.
Improper installation includes inadequate mounting, mechanical strain on cables and insufficient cooling.
Please claim warranty repairs from the shop where you purchased the product.
If possible, use the original packaging when returning the product for service. Include a dated description of its use and the fault, together with your full address and telephone number.