TUSA SAV-7 EVO2 Manual
Contents
1. Check the battery indicator for battery condition with turning on the motor Red empty All colors are tuned on after full charged then changed _ Yellow color with consumption Ta Blue full Check the indicator Take all pressure off the accelerator lever Confirm the rotation of the propeller has stopped completely 11 MESTEP4 Turn off the main switch Move the main switch to off position Confirm that all battery indicator lights are off LN WARNING If switch is left on the standby current will continue to flow It is possible that damage will occur from over discharge of the battery Main switch OFF MESTEPS Using the variable pitch propeller Lay the scooter down on a level surface Pull and turn the pitch control dial knob to make adjustments to the propeller angle Push the dial back after speed selection Lay the scooter down on a level surface Pitch selection Acceleration Maximum speeds Battery consumption PITCH ITT TF ITT TT ITT TT Acceleration pur co E E me PITCH 2 O BOO 000000 000000 5nd purpose PITCH 3 OOOO 000000 BOOO Low speed purpose SAV 7 EVO2 DPV Confirm that pitch operation moves smoothly through the three stages SAV 7 EVO2 DPV Recommended position is Pitch 2 or 3 because of law consumed power Choose the speed level with pulling dial LN WARNING Do not miss the check before2. Please only use our purpose built battery and purpose built charger Please do not change remodel or disassemble Please do not touch unnecessarily any moving parts especially the propeller Please do not touch the electrodes etc Please do not drive the scooter to the surface as there are dangers caused by rapid ascent Please only charge the battery in a well ventilated area and keep it away from an open flame Please ensure that string hose hair or foreign objects do not become entangled in the propeller Remove the battery before attempting to disentangle any items should the propeller become obstructed Please do not jump into water with the scooter Please do not throw the scooter from a high place Please do not enter with the scooter when you are boat diving Have the scooter passed down to you If your scooter has stopped abnormally or been for repair please do not run it for a long distance until after you have confirmed it is safe Please execute a thorough check prior to use Please do not run the scooter for more than five seconds out of water Please take careful note of your surroundings and circumstances prior to preparing your equipment on land and in the water Please disconnect the battery terminal when the scooter is not in use Please check the main body O rings for impurity and dust before usage Please do not use other than the specified silicone grease lubricant supplied by Nippo
3. TUSA a TUSA Underwater Vehicle Instruction amp Riding Manual SAV 7 EVO2 Introduction Thank you for purchasing a TUSA underwater vehicle The TUSA underwater vehicle is revolutionary new underwater vehicle equipped with functions and features that set it apart from previous models and other brands Hands free riding with the scooter saddle PATENTED Hands free is an innovative riding style that allows an operator to steer the scooter with body movement much like a seal This inline body placement is more streamlined to effectively decrease fatigue reduce air consumption and extend your dive time Go further get there faster and have a lot more fun along the way The hands free riding style increases your options while diving You are no longer limited to the hands on riding style required by other vehicles The possibilities are endless Variable speed control Quick and smooth speed control is now at your fingertip Speed adjustments are made via an accelerator lever that changes the rotational speed of motor while vehicle is in use Adjustments are very smooth allowing user to fine tune speed These enhancements are a significant improvement on the TUSA vehicle series This new design provides a far more advanced control system than is available on other underwater scooter The TUSA underwater vehicle is not a heavy burden The hands free riding style decreases fatigue reduces air consumption and e
4. Check before use confirming operations MISTEP1 Turning on the main switch Check your surroundings Always confirm that nothing can obstruct or become entangled in the propeller Place the scooter vertically on a level surface Turn on the main switch It is located on the right hand grip MISTEP2 Checking the battery indicator light Confirm that all lights are illuminated i e Green yellow and red n case of using Lead Acid Ni MH battery green LED does not always turn on even if at full charge Lights the Battery indicator About battery indicator It is necessary to synchronize the battery indicator for each type of battery Lithium ion or LEAD ACID Ni MH to ensure an accurate display of the remaining battery life Refer to STEP 2 on page 15 The display accuracy may be affected by an exhausted battery and ambient temperature Please refer to the battery indicator as a rough guide only Indicator operates following by battery voltage at propeller pitch 2 with full throttle Please note that it can not be measured accurately because the battery voltage is recovered gradually when the motor Is stopped MISTEP3 Operate the motor Push up the accelerator lever Slowly push up and down on the accelerator lever Confirm rotational speed changes are occurring with vertical motion Also confirm the sound of propeller for check Push the accelerator lever up and down
5. E Normal speed riding propeller pitch 2 accelerator position 6 MAX There is increased stability in the forward motion when riding at a normal speed and therefore the scooter will not sink even when there is a certain level of negative buoyancy Because the diver s entire body is being hit with an appropriate amount of water current using the body as a rudder for steering and hands as breaks is very effective thus providing a high level of freedom in underwater movement Therefore when riding in an area where water depths vary buoyancy that is perfectly neutral can actually prove to be a hindrance However in traveling long distances through water with constant depth it is better to attain neutral D buoyancy since this will improve battery efficiency and make it easier for the diver to stay underwater Please refer to Page 31 for more explanation Under normal speed the diver can make left or right turns easily by using the body as a rudder for steering and the hands as breaks The diver must try to maintain directional control while moving forward by bending your body at the waist towards the target or direction you intend to travel E High speed riding propeller pitch 1 or 2 accelerator position MAX Similarly in high speed riding having slightly negative buoyancy will make it easier to maintain control Riding form is very important for high speed riding The diver should be aware of the surround
6. a form of recreation araar Caenia Hold both ankles of the front diver 28 STEP7 Advanced operations Carrying The wing arms of the scooter are used to carry underwater equipment The diver opens both the left and right wing arms of the accelerator unit Karabiners attached to any equipment you want to carry are hooked onto the holes in the wing arms E Distribution of underwater weight As a general rule the underwater weight of equipment that is attached to the wing arms should be evenly balanced between the left and right sides When it is not possible to distribute the weight evenly it is best to attach the load that is slightly heavier onto the right wing arm since the rotation torque turns toward the left counterclockwise relative to the direction in which the scooter is traveling E Underwater resistance The diver must take into consideration not only the underwater weight of an object being towed but also the underwater resistance When an object that causes great resistance is towed underwater and is attached to just one side of the scooter it could throw the scooter off balance when moving forward L WARNING Equipment that could get caught in the propeller is not suitable for carrying Practice keeping attached equipment as close as possible to the scooter body otherwise your ability to turn and take off effectively may be reduced The wing arms are designed to sustain underwater
7. at the domestic outlet AC100 240V A CAUTION The connector is polarized so when connecting insert in a direction so it will smoothly enter the connector receptor Charging time of the charger The color of LED2 will indicate when charging is completed LED1 Charging Red light gt gt Finished Green light Power ON Red The red is changed into green as the charge progresses LED2 A green lamp shows when the battery connector is not O Charging Red connected open circuit but the power is on LED2 LED1 Finished Green ESTEP7 Disconnect the charger when charging is completed The battery charger automatically changes into trickle charge mode after charging is complete however please avoid leaving the charger connected after the charge lamp becomes green At first turn the power off and remove the AC plug from the domestic outlet gt A Next remove the plug of charger MISTEP8 Charge completion ZN CAUTION Please do not set the battery into the scooter for at least 30 minutes after completing the charge Please do not use if the battery become high temperature Usage of batteries except Lithium ion battery SAV 7 EVO2 In case of using with exclusive battery for SAV 7 EVO2 sold in the past except lithium ion battery please set a battery changeover switch to Lead Acid Ni MH as illustrated A Warning Even if it is equipped with Lead Acid battery or Ni MH battery in full charge and t
8. for debris that may be obstructing or entangled in the propeller area Please ensure the debris is completely cleared away prior to resetting and reactivating the motor otherwise damage may occur VDS Voltage Detection System TUSA underwater scooter has a built in VDS Battery Voltage Detection System to minimize potential damage done to your battery due to over discharge When the battery reaches 20 volts the propeller and motor will stop On the SAV 7 EVO2 battery indicator will turn red If you continue use of the Scooter after the battery reaches over 20 volts the Scooter electronics will sense the battery voltage drop and the VDS will automatically shut off power to the motor To continue using the Scooter please turn off the main switch and turn on the main switch again If the voltage has increased the Scooter motor will work again If the battery voltage has not recovered the VDS will automatically shut off to the motor Using the Scooter below 20 volts may shorten the life span of the battery Concerning with Li ion battery if a protective circuit in the battery works it is impossible to work the scooter again If the red lump of indicator is not light go to the exit point It can be reset by re charging the battery Maintenance Maintenance after use Please wash with tap water after use Make sure to flush sand and other debris from around the propeller switch accelerator unit and locking buckles WESTEP1 Avoid s
9. the grip and move the scooter by grip compulsively for adjustment of turn This way makes smoother like car driving during turn E Hand brake The diver creates resistance on either side of the diver by holding the palm of a hand against the water current or holding an arm away from the body This will reduce the speed on the side that the resistance is created causing the scooter to veer toward that direction This technique is used to make slight adjustments in the direction to which the scooter is already moving X s i A an Oe t D x e e Holding on arm away from the body Open both arms for reduce the speed 26 STEPS Advanced operations E Drifting A resistant brake using the diver s upper body in the same manner as with a closed turn Running at high speed The diver enters a turning point without slowing down and applies a resistant brake using one s upper body in the same manner as with a closed turn Once the diver s head is turned to the desired direction the diver slowly extends one s body and gradually adjusts the position of the scooter to face that direction When doing this the diver should slide one s upper body sideways to gradually move toward the traveling direction Because this technique allows the diver to determine which way the diver is going soon after entering a turn it is useful for situations in which the diver suddenly sees a target
10. alt build up desalt after use Stand the scooter upright and flush with tap water from your hose all salt sand and debris Take special care to efficiently wash the switch part of the accelerator unit as this is a critical moving part during operation With the scooter laid horizontally slowly rotate the propeller manually and wash using a hose all the joints and seam in and around this area If possible you can desalt the scooter in a large water tank if the gt diving store has this facility Z CAUTION Please do not activate the scooter until confirming that the surrounding area is safe and that no other equipment is in the tank as the propeller generates turbulence Please never put your hand near or in the rotating propeller A water tank that has not been refreshed may itself have excess salt and in this case will not provide a sufficient rinse MISTEP2 Disassembling the propeller Assy Z CAUTION Please remove the battery from the scooter before working on the propeller area Pull up the two clamp lock levers in order to unlock the clamp ring Next the clamp ring can be unlocked by rotating counter clockwise and matching the oval mark on the clutch propeller housing Then pull out the propeller housing Pull clamp lock lever toward Remove propeller Assy self and turn clamp ring MESTEP3 Check and cleaning of propeller Assy Check to see if any water leakage has occurred In genera
11. ding manual E Scooter saddle Handle The Grips on either side of your scooter can be used for take off stopping and turns The Grips should NOT be used for carrying the scooter on land To carry vehicle on land grasp both saddle handles or with one hand grasp handle bar of Single Hand Unit see below Saddle To minimize underwater resistance and to allow for effortless under water maneuvering the scooter is designed to be steered hands free In doing so the saddle helps to hold the diver in place and allows the diver to steer the scooter freely Even relatively sharp turns are made possible when riding hands free Accelerator lever The accelerator lever functions are same way as the gas pedal on an automobile The revolution speed goes up when pushed up and goes down as the lever returns to its original position Wing arms Wing arms are used on the scooter for triple refer to page 28 three person rides The grips are used to pull the two guest divers By attaching a karabiner onto the hole in the wing arms they can also be used to carry underwater equipment Knobs Grip To loosen the knobs the wing arms are pulled out LN WARNING Do not carry the scooter with one hand when using saddle to transport vehicle on land Grasp saddle handles with both hands and lift vehicle to carry on land Verify that prop cover stay is firmly in place and single hand unit proper
12. diving in order to prevent from serious injury 12 Operation and use Entry method ESTEP1 Entry from shore The scooter is very light when in the water just slightly negative While hands free riding it s very easy to use the scooter in shallow water even up to waist deep You don t need to stay on the bottom in shallow water you would like to dive to or underwater Waist deep Moving along the surface Z CAUTION Never jump into the water with scooter from a boat or any other elevated location Never throw the scooter as it is potentially very dangerous Please refer to the boat entry method for further instruction 3 ek d Don t jump from a high place with the scooter Don t throw the scooter MISTEP2 Entry from boat and other elevated areas Please secure the scooter by a lanyard or rope in the water or hand it to the diver after he or she has entered the water When passing the scooter to a diver already in the water please lower the scooter in so the diver can easily grasp a handle or grip Z CAUTION Please turn off the main switch so that the propeller cannot operate by mistake when passing it to a diver Do not enter from a boat or other elevated position while holding the scooter Do not enter the water while holding the scooter Please turn off the main switch Exit IESTEP1 Beach Its recommended to drive the scooter up to waist deep water and leave it close to o
13. e pilot diver to steer Hold of the grip located on the backside of the scooter SEA Li a Sh ear CONN C Sy S E Triple three persons ride The pilot diver boards the scooter at the regular position The two guest divers open and grip the wing arms of the saddle The guest divers should position themselves underneath and horizontal to the pilot diver This will stabilize the overall movement As for left and right positioning the guest divers should try to stay in the water current created by the pilot diver Such positioning will keep the propulsion resistance from increasing drastically allowing for faster travel Four or more persons can ride together by linking up vertically like a train The pilot diver starts the scooter at low speed The first guest diver takes hold of the pilot diver s ankles As soon as the first guest diver attaches oneself the pilot diver increases the speed to stabilize the overall balance When the pilot diver pulls the accelerator the scooter will not speed up right away While waiting for the speed to increase the third and forth divers take hold of ankles of the diver in front of them The scooter has enough power to pull five to six persons but having that many will make certain maneuvers such as turning difficult It will obviously slow the speed down and making sharp turns will be impossible Riding with many divers should be seen not as a mode of transportation but as
14. easily Buoyancy adjustment Because the diver s hands are freed up during hands free riding the diver is able to operate the inflator and exhaust valve as the diver normally would Because the body is horizontal when riding the scooter its position can be kept stable by discharging air using the exhaust valves located at the shoulders or hips Using fins as a stabilizer During hands free riding fins are used as stabilizers The diver should try to keep the fins positioned near the center of the propeller cover during regular or high speed runs keeping fins even with the propeller shaft of the scooter The water current created by the propeller will hit the fins This will help counter the force that pushes the scooter to rotate in a counterclockwise direction rotation torque When running at a slow speed the upper body will lift slightly causing the knees to lightly bend In this case the diver must try to keep the fins horizontal to the propulsion direction so that here too they can act as a stabilizer LN DANGER Never scuba dive alone Always dive under the buddy system Diving alone could lead to serious injury and death Due to the speed of the scooter depth amp pressure change may happen faster than usual The diver must be aware at all times with regards the status of the diver s depth and direction and carefully monitor the diver s ascent rate as rapid surfacing and collisions could cause serious injury or death Please p
15. ed to an entity providing diving instruction Amateurs lacking knowledge of basic scuba diving techniques risk serious injury or death Never scuba dive alone Always dive under the buddy system Diving alone could lead to serious injury and death Due to the speed of the TUSA underwater vehicle depth amp pressure change may happen faster than usual The diver must be aware at all times with regards the status of his depth and direction and carefully monitor his ascent rate as rapid surfacing and collisions could cause serious injury or death Please practice driving at low speed until you become accustomed to the handling of the scooter CAUTION Make sure you are in good physical condition before you scuba dive If you begin to feel anxious cold tired or unwell do not over exert yourself and stop your dive Never take alcohol or medicines especially a nasal spray or medicine for a cold before scuba diving Those who are in poor physical shape or suffer from a chronic ailment should consult a doctor before considering diving WARNING Before deciding to use your scooter in an adverse environment or special situation please consult with a qualified instructor at the place of purchase prior to undertaking your dive PANS Main warnings and notes CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION WARNING WARNING WARNING WARNING WARNING WARNING
16. ensuiki Co Ltd supply This in turn may cause an unexpected accident The above mentioned table does not mention all prevention matters that could cause danger and injury Please carefully read and follow the instructions whenever you see the A symbol in this book N el cerji exeni e al The SAV 7 EVO2 name of each part Propeller cover Propeller screen Clamp ring Pitch control dial Propeller Assy Propellers Clamp ring lock lever Body Assy Head Assy Locking buckle Wing arms Starter switch Main switch Grips Battery indicator Accelerator lever Saddle Handle Battery plug Water leak sensor terminal Water leak alert lump Specification C Length and width Weight Submerged unit weight Speed Active depth Active range Body Motor REV reducer Speed adjuster Safety devices Accessories 720mm X 340mm 21 3kg with battery and single hand unit 860g X1 0 4 5km h X1 It depends on the divers posture physique and equipment approx 70m 7200m X1 Shock resistant ABS resin 24V Brushless motor Ring epicyclical gear speed reducer Rotational speed control Variable pitch type propeller 3 steps Sensation current shut down device Thermal switch function automatically shuts down operations when internal temperature rises Water leakage sensor function turns on warning lamp when water e
17. er Make sure it s on a flat stable surface so that it cannot fall over and cause damage to the propeller cover and blades If the scooter is wet wipe all moisture off completely MISTEP2 Unfasten the locking buckles Unfasten four locking buckles on the body seal A locking mechanism is attached to the locking buckle to prevent it from releasing as a result of unexpected shocks First while pushing the square button in the center of the locking buckle lift the end of the buckle Next after releasing the buckle hook flip the buckle downward Release all four parts HISTEP3 Removing the battery housing It may be difficult to remove the battery housing head Assy due to negative pressure inside the body caused by contact with the O ring temperature variation and other factors In this case place the buckle latch under the locking hook and apply pressure with your thumb while pushing upwards Do this on both sides of the scooter concurrently to break the seal and easily release the battery housing head Assy Push the hook with arms LIN Hook D of Remove the head Assy If with the single hand unit Arms unnecessary to disassemble the single hand unit when removing the head assy If it is hard to remove head Assy L N WARNING Precautions concerning the handling of the battery housing head Assy after removal Silicone grease has been applied to the seals on the battery hous
18. in diving spots it can easily run for two dives Z CAUTION Battery duration may vary depending on how it has been stored or used Do not use a battery that is old or damaged on outside as its power could suddenly drop or it could have an extremely short running time 19 STEP 1 Positioning for hands free riding The diver positions the scooter between the legs so the scooters propeller shaft and the axis of the diver s body are lined up As the scooter moves forward the body will naturally be pushed from behind The diver does not need to grip or force oneself to sit on the scooter Just wait as the scooter will naturally push the body Good posture Pushed by the scooter Bad posture The diver and the scooter will not be able to move as one which will throw the diver off balance and prevent a smooth takeoff 2 Stopping The point to be cautious of when stopping is adjusting your balance when there is no longer any forward moving force Without momentum the diver s body will become unsteady You must adjust and attain your balance If there is no place to land you may need to adjust your buoyancy E Landing Stop the propeller by lowering the accelerator lever D Using the same hand that moved the accelerator lever take hold of the grip on the saddle unit Hold the scooter with your hand and also grip it between your knees Push accelerator lever down Hold the scooter with your hand Grip the scoo
19. ing Sand and other debris easily stick to this Be careful to avoid this situation Water leakage is caused almost entirely by sand or other debris adhering to the seal area Please put the battery housing head Assy in a safe clean place lying down on the ribs located on its base Please do not place it on sand or on rocks etc Remove the connector MISTEP4 Releasing the battery connector plug Hold and squeeze the release levers on both sides of the battery connector plug and pull upwards ZN CAUTION Altering the battery connector plug in any way is very dangerous and should not be done Any alterations will cause unexpected trouble HESTEP5 Removal of the battery Hold the grip of the battery firmly and lift it away from the body Place in ona clean and dry flat stable surface LN WARNING The battery is quite heavy so be careful not get your fingers pinched or to drop it onto your feet MESTEP6 Connecting the exclusive charger to begin recharging ZN CAUTION You must use the correct exclusive charger suitable for the type of battery being used Please refer to the handling manual that is attached to each product about the battery First connect the AC alternating current plug of the charger to a domestic outlet Next connect the socket from the battery to the plug on the charger i The charging will automatically start upon A DC25 6V connection after the power is turned on 5 mX
20. ing water current and keep the frontal body area as low profile as possible Also the diver should try to reduce drag and may obtain increased speed by holding one fist out in front of the body SPEED MAX bo At high speed the difference between Pitch 1 and Pitch 2 is very subtle At Pitch 1 the maximum level of efficiency cannot be achieved unless the divers equipment is low profile and body posture is good Good posture of high speed riding The turning radius becomes larger at high speed and therefore the diver must be careful of obstacles 25 STEP4 Turning CC lt Eee Steering with your body Using your upper body as a rudder The diver s entire body from the top of one s head to the tips of one s fins is used as a rudder It is especially effective to use the upper body as you will be propelled in the direction to which your body is bent E Open turn The diver arches one s body back while thrusting one s chest forward The scooter will curve toward the diver s back in a large circular motion With open turns the diver feels safe because the diver is able to see where the diver is going while turning E Closed turn The diver bends forward at one s stomach This allows for a sharp turn However it is difficult for the diver to see where the diver is going or judge the depth of water This turn is also used to go into a drift mode MH Compulsive turn Turn with holding
21. ition gradually build up speed and take off Once stabilized the key is to make your buoyancy slightly negative or to descend in the water to create negative buoyancy The body to reach a horizontal position Create negative buoyancy 23 STEPS Riding E Surface riding Riding at the water s surface is also possible with the scooter By wearing equipment designed for skin diving mask snorkel and fins and appropriate amount of weight on the hips the diver can easily move around the water s surface Head first riding Normal riding Pay attention of equalizing ears E Slow speed riding propeller pitch 2 or 3 accelerator position 4 6 When riding at slow speed it is necessary to adjust your buoyancy slightly using a buoyancy compensator B C In doing so the diver s legs will sink due to the weight of the scooter making the upper body rises up slightly In order to balance out the upward force caused by the lowering of the scooter and the diver s negative buoyancy the revolution speed of the propeller and the angle of the scooter must be adjusted Diver s negative buoyancy Speed up Upturn Making turns using the body to help steer is not as effective when riding at low speed To make a left or right turn lean the upper body while in an up upright angle position in the direction of the turn and the scooter itself will begin to move in that direction 24 STEPS
22. l many scooters have leakage weakness around the inside the propeller Assy sealing area on the propeller shaft If a seal becomes worn If a little water is present please desalt it away water can infiltrate the motor compartment and cause major drain completely damage Scooter have greatly improved this area of weakness in comparison A WARNING to other scooters We specially designed a A small amount of water leakage a teaspoon or double sealing system for the propeller shaft by so is not abnormal and will not harm the operation building a small watertight compartment between the first seal and the second seal Even if water leaks into this area through the first seal into this compartment further Propeller Assy leakage into the motor compartment is prevented PATENTED of the scooter However if the propeller Assy is full of water then discontinue using the scooter as the propeller Assy area and rear seals of the scooter need to be overhauled before any further use MISTEP4 Set the propeller Assy Please drain all water completely Please check the O ring O ring groove and O ring surface and remove any dust sand or debris Check for any scratches or damage to the O rings and confirm an appropriate amount of silicone has been applied Installation of propeller Assy is the inverse order to Remove the propeller Assy Please note that the propeller shaft needs to be seated correctly before pushing the propeller assembly do
23. l may be seriously compromised and damaged if you use the wrong lubricants and or cleaners Please note the following Z CAUTION Please never use organic solvents such as gasoline oil petroleum grease Vaseline included alcohol the toluene methyl ethyl ketones and acetones nor strong detergents etc WBSTEP3 Accelerator unit Please execute Desalt process on all moving parts Especially the accelerator lever MISTEP4 Storage notice Please disconnect the plug from the battery during storage Please keep the box the scooter is delivered in This box will help prevent damage during transport Remove the battery socket Please keepthe package 16 Troubleshooting Symptoms The propeller doesn t rotate even though the accelerator lever is activated Check1 The scooter won t activate Please confirm the battery indicator lights are on Action when trouble is found Please turn the main switch on Please go to the following step if the scooter still does not operate Check2 The battery may not be connected correctly Please open the head assy and confirm that the battery lead is not connected Action when trouble is found Please connect the battery connector correctly Please go to the following step if the battery is connected correctly Action when trouble is found Normal operation can be expected after repair Please request your local dealer
24. ly installed before attempting to lift vehicle by handle bar HM Hands free riding PATENTED Hands free riding is a new riding style in which the diver uses one s body instead of one s hands to steer the scooter This frees up the diver s hands Different from past scooters that were steered using both hands the diver steers the scooter using one s entire body This greatly reduces the amount of physical strain put on the diver It allows for long distance travel and extended diving time enabling the diver to explore greater distances and diving environments that may have been impossible in the past There are great benefits to being able to drive hands free Scooters that need to be steered by hand end up becoming like a piece of baggage itself underwater Divers who thought Using a scooter keeps me from being able to carry anything else underwater will now be free to take what ever they want on their dive Because different items of underwater equipment can be attached to the scooter using the wing arms the carrying capabilities are vastly improved Long distance travel is made possible The SAV 7 EVO2 can travel underwater distances of around 7 200 meters when a Li ion battery is used Since it takes over 110min to cover 7 200 meters when traveling nonstop a diver can easily travel continuously over the time span of a regular single dive For leisure diving in which the diver uses the scooter only to travel between certa
25. n Sensuiki Otherwise there is a danger of an explosion and fire There are dangers of the explosions and of fire if the electric circuit is tampered with There are dangers of damage and water leaks in the body and circuits There is danger of injury There is danger of electric shock because of high currents and voltage The rapid pressure decrease associated with a rapid ascent may cause decompression disease or embolism Hydrogen gas is generated from the battery while charging There are possibilities of poisoning and fire There is a possibility of injury The inertia and weight of the scooter is dangerous and could cause injury The inertia and weight of the scooter is dangerous and could cause injury The inertia and weight of the scooter is dangerous and could cause injury An unknown fault or unfinished repair may cause an unexpected accident An accident may be caused by a malfunction after it enters the water The seal part on the propeller shaft is damaged by frictional heat and there is a possibility of water leakage Equipment and materials may be damaged by unexpected operation Unexpected operation due to the switch being accidentally operated may cause an unexpected accident There is a possibility of water leakage by imperfect sealing which may cause damage and an unexpected accident Damage may be caused to the materials the scooter is made from by using lubricants other than what Nippon S
26. nters the motor or battery housing and automatically shuts down operations Water cooling motor deployment O ring seal for the main body O ring seal for the propeller end of the body Silicone grease X 1 In use of lithium ion battery Specification Separately purchased accessories Lithium ion Battery 20Ah for SAV 7 EVO2 Use only batteries supplied by Nippon Sensuiki Charger for Lithium ion Battery for SAV 7 EVO2 Use only the specific charger supplied by Nippon Sensuiki Z CAUTION Please never use other batteries than those supplied by Nippon Sensuiki Supplied separately Please never use other chargers than those supplied by Nippon Sensuiki Supplied separately Exclusive Batteries for SAV 7 EVO2 Lithium ion battery Grip Battery socket Outer dimensions 174X125X165mm a Normal Capacity 20Ah DC25 6V Weight 9 5kg Exclusive Chargers for SAV 7 EVO2 Battery charger for Lithium ion Battery Charger plug Charger body AC plug Outer dimensions 170mm x 90mm x 50mm Output DC25 6V Input voltage AC100 240V 50 60Hz Z CAUTION Please refer to the handling manual that is attached to each product explaining usage of the battery and charger Charging the battery Z CAUTION In this page it explains only the Lithium ion battery and SAV 7 EVO2 as an example MISTEP1 Preparation for charging Please stand the scooter vertically on the propeller cov
27. o operate Maintenance after use Note on maintenance and storage The propeller doesn t rotate even through the throttle lever is activated Stopping Take off Riding Turning Advanced operations Advanced operations Advanced operations Carrying Before reading the manual Items with the following headings marked with this symbol A describe scuba diving techniques and how to handle diving equipment These sections must be completely understood so be sure to read them with special care ZN DANGER Failure to read understand and obey the instructions under this heading may lead to accidents that may result in serious injury or death Z CAUTION Failure to obey the instructions under this heading may lead indirectly to accidents that result in serious injury death and or serious damage to equipment Z N WARNING Failure to obey the instructions under this heading may lead to minor accidents and or damage to equipment DANGER It is extremely important that scuba divers using this product have undergone theoretical and practical training given by an internationally recognized entity providing diving instruction Due to safety considerations those who have not obtained a C Card attesting to the completion of training from an entity providing diving instruction must not under any circumstances use this product This does not apply to those using this product during training under the supervision of an instructor attach
28. pright position on the seabed Approach the scooter from behind and position the body above the saddle of the accelerator unit Approach the scooter Pull the scooter up to a riding position by taking hold of the handle of the saddle unit Firmly grip with the knees to hold the scooter Grip with the knees to hold the scooter From these lean forward and kick off the seabed in order to avoid disturbing the sand DA Taking off from a landing position will disturb the sand underneath Lean forward gt Kick to move slightly off the seabed and sufficiently tilt forward before turning on the propeller After moving away from the seabed with the entire body tilted for accelerator lever for takeoff v3 Kick off the seabed ward to aroun degree angle pull the STEP2 E Taking off from a hovering position Take hold of the accelerator unit and bring the scooter directly below the body Pull the scooter up to a riding position Bring the scooter directly below the body Pull the scooter up Start the scooter at slow speed by pulling the accelerator lever slightly The scooter itself will move toward the body eliminating any sense of instability Be careful not to be pushed suddenly upward by the scooter 5 Be careful not to be o pushed suddenly upward Start the scooter at slow speed While adjusting the body to reach a horizontal pos
29. r on the edge the shore The scooter is heavy when out of water It is strongly recommended that you remove your diving equipment on the shore prior to lifting the scooter MBSTEP2 Boat Securely attach the scooter with a rope or lanyard to the boat Lift the scooter from the water after the diver has exited 13 Operation and use How to operate WESTEP1 Accelerator operation TUSA underwater scooter speed is controlled by the rotational speed of the propeller with the accelerator unit and by adjustment of the propellers pitch The rotational speed of the propeller rises when the accelerator lever is pulled up The rotational speed decreases when the accelerator is pushed down Pull out accelerator Push down accelerator Overload protection safety sensor TUSA underwater scooter has a built in safety device that protects the motor if overloading occurs For example if rope gets wound around the propeller shaft the scooter will automatically stop The scooter safety sensor protects the diver s safety from rotation rebound if the propeller becomes entangled or otherwise obstructed The scooter is equipped with a safety sensor to protect the motor from burn out and deterioration caused by overloading If the safety device is activated turn off the main switch once and it will be reset After resetting the motor should works as usual Z CAUTION If the motor has stopped please carefully check
30. r upside down the positive and negative Never cut the battery in socket directly Never throw the battery into fire or heating machine Never connect the positive and negative of battery with metal Never knock throw or trample the battery Never cut through the battery with nail or other edge tool Never use or keep the battery under the high temperature Otherwise it will cause battery heat get into fire or lose some function and reduce the life Never use the battery under strong static and strong magnetic field otherwise it will destroy the protecting device lf battery leaked the electrolyte get into eyes please donj t knead please wash eyes by water and send to hospital Otherwise it will hurt eyes lf battery emit peculiar smell heating distortion or appear any unconventionality during using storage or charging process please take it out from device or charge and stop using f the pole of the battery plug was duty please clear it before using CHARGE 0 C 45 C 32 113 F Checking before use setting MISTEP1 Set the battery Please set the fully charged battery in the body housing in the correct position LN WARNING Please only use a fully charged battery otherwise damage will be caused Also check again that the correct charger was used with the correct battery Next the battery socket is connected with the body plug Please always remove the connector when not in use or during
31. ractice driving at low speed until you become accustomed to the handling of the scooter There are screen on the propeller cover for preventing from entangling wire and seaweeds However do not dive with the scooter at the seaweed area Characteristics of the TUSA underwater scooter Se E Speed control The TUSA underwater scooters are a multipurpose underwater scooter equipped with an innovative accelerator based gear less drive mechanism Shifting gears while running On former underwater scooters the gears could only be shifted by manually changing the pitch of the propeller while the scooter was in a stationary position Having to stop each time to change the speed was difficult and inconvenient To overcome this problem the TUSA underwater scooter is now equipped with a mechanism that changes the revolution speed of the motor Now the gears can be shifted while running eliminating the need to stop each time The mechanism that changes the motor s revolution speed has made gear less speed change possible Speed is no longer changed in phases by manual adjustment of the propellers pitch Propeller pitch conversion mechanism The TUSA underwater scooter is also equipped with a propeller pitch conversion mechanism Please refer to the pitch selection on page 12 NOTE In this book it utilizes only the SAV 7 EVO2 diagram as an example Basic operation for another TUSA underwater scooters are same as the SAV 7 EVO2 18 Ri
32. ter reaches a complete stop making for easier maneuvering 21 3 Take off nnn ste Learning to be pushed by the scooter The key to successful takeoff is to learn to be pushed by the scooter If the diver is too eager to move forward the diver and the scooter will not be able to move as one which will throw the diver off balance and prevent a smooth takeoff Counter balancing the rotation torque Right after takeoff the diver will feel the scooter rotate in a counterclockwise motion relative its forward movement This is due to the rotation torque of the propeller As a way of countering this movement the diver can twist one s upper body to the right Another simple technique is for the diver to imagine taking off in the direction of 11 00 forward to the left This will naturally twist the diver s body to the right which will reduce the effect of the rotation torque Once a stable forward motion is achieved the rotation torque will become weaker Preventing sand disturbance The water current caused by the propeller is more far reaching than one might imagine At take off the diver must be aware of what is behind the diver so as not to hit other divers with a slipstream coming from the propeller Taking off from a landing position will disturb the sand underneath Kick to move slightly off the seabed and sufficiently tilt forward before turning on the propeller E Taking off from a landing position Hold the scooter in an u
33. ter between your knees amp WARNING In the case of dry suit diving please pay attention of air volume in the suits It is possible to blow the air from the suit or sudden surfacing Please put the air in the suit shorter than usual for diving with the scooter After the scooter stops and while maintaining left 3 and right balance allow the weight of the scooter to move the body to an upright position Land on the ground in a standing position Once the feet touch the ground Remove the scooter 20 STEP E Moving to hovering mode Reduce speed by shifting the accelerator lever to the low speed position Once the speed is reduced and the weight of the scooter can be felt adjust buoyancy Turn to Pitch 4 or 5 Adjust buoyancy Turn to minimum speed Using the same hand that moved the accelerator lever take hold of the grip on the saddle unit Hold the scooter with your hand and also grip it between your knees Hold the scooter with your hand Grip the scooter between your knees After the scooter stops maintain left and right balance and go into hovering mode Do this by adjusting buoyancy once again while allowing the weight of the scooter to bring the body into an upright position O Rise with scooter s weight Adjust buoyancy Bring the body into an upright position Repeating steps 1 and 2 will reduce the amount of buoyancy shift that occurs at the point in which the scoo
34. to aim toward WE Hairpin This is a technique in which the accelerator is briefly shut off before or during a turn allowing the diver to drastically reduce the radius of a turn It is used when the diver needs to change directions on the spot much like making a flip turn in swimming In the same manner as making a closed turn the diver turns one s body at a slight angle and applies the brakes using upper body resistance Once the body begins turning the accelerator is shut off reducing the propulsive force of the scooter to zero for a time While using the momentum to change the direction of the scooter the diver shifts one s upper body to face the desired direction and then stretches one s body in that direction After the scooter has changed directions the diver switches the accelerator back on to start up again SPEED MIN Using the momentum to change the direction of the scooter A l l aes E J A af A L _ AO SPEEDUP Bh s z E Be STEPS Advanced operations C E Tandem two persons ride The pilot diver boards the scooter at the regular position The guest diver takes hold of the grip located on the backside of the scooter In doing so it is not necessary to hold on tightly It is enough to hook on a few fingers If the guest diver holds the grip too tightly he will constrain the movement of the scooter making it difficult for th
35. to repair the scooter if you do not understand the repair method Please go to the following step if the accelerator seems to be working correctly Action when trouble is found Please recharge your existing battery and try again If the symptom still persists after another fully charged battery has been tried then please go to the next step Check5 The water sensor may have been activated Please open the head Assy cover and confirm the warning lamp is on Action when trouble is found Please dry around two sensor screws that are located on the top of the bulkhead If the warning lamp has not turned off or the warning lamp lights up frequently the scooter may be leaking Please request a full overhaul with your dealer Water leak alert lamp Please go to the following step if this sequence of troubleshooting doesn t correspond Water leak sensor terminal Please advice the dealer that the scooter is not operating even after all the above points were addressed and checked 17 Riding manual For the safety diving Equalization ears Ears are equalized in the same way as for regular diving However the speed will cause water pressure changes faster Therefore ears must be equalized faster and more frequently than usual As the diver s face is often turned upward when in a riding position it is best to draw the chin back when equalizing the ears in order make the auditory canal open up more
36. travel to your destination DN J AD AA i UEM Connect the socket to right way At this time confirm that the warning lamp isn t on Please do not use the scooter if the warning lamp is on as this may indicate a water leak has occurred Water Leak Alert Kamp MISTEP2 Set the battery housing head Assy Please confirm that there is no debris adhering to the O ring O ring groove or O ring connecting surface Also confirm that there are no scratches and that an appropriate amount of silicone grease has been used Check the switch of Battery Selection Switch Q Pi to same position as the battery type Place the battery housing head Assy carefully in position taking note that the ribs on the underneath of the scooter match up Lithium ion avx has no sticker of Battery Selection Switch Lead Acid Ni MH please check the switch to Lithium ion side Battery Selection Switch MISTEP3 Checking the housing seal A WARNING After setting the housing confirm that there is a uniform space of about 0 5mm between the battery housing head Assy and the motor housing body Assy If the space is less than 0 5mm or if the two parts are joined there is the possibility of the O ring coming out of the O ring groove Confirm that this not the case before proceeding 0 5mm MESTEP4 Checking the locking buckle Please confirm that all four locking buckles are securely locked 10
37. urn on a main switch battery indicator does not always display FULL Green LED won t turn on Lead Acid Ni MH Battery select switch About battery warranty and care all DPV Warranty covers if its capacity becomes less than 50 within 3 month from the date of purchase according to proper usage HOW TO CARE BATTERY Battery is not charged when delivered so that charge it when in use lf the battery is not in use for a long period it may affect a lost of capacity by self discharging f storage temperature is over 25 C 77 F charge once for every 2 month Even if not exceed over 25 C 77 F charge once for every 3 month Directly contact us when fuse is cut off Do not over discharge until a propeller won t turn or slowly turn around Do not continue using by resetting main switch for VDS Moreover a protective circuit is equipped in the lithium ion battery inside When this circuit stops to discharge be careful as you can not reset by turning main switch on again Only it can be reset by re charging the battery In addition even if VDS circuit does not operate this protective circuit may stop to operate A Warning Never throw the battery into water keep it under dry shady and cool circumstance when not use Temperature range for battery y y o o 3 Never keep the battery beside high temperature eee of eee ree source examples fire heating machine and ect STORAGE 10 C 45 C 14 113 F Neve
38. weight Equipment that is able to be carried underwater could damage the wing arms if it is brought on land while still attached Therefore remove the equipment from the wing arms before bringing the scooter out of the water Wing arm Karabiners are useful Carrying Those ways are just one of idea for riding the scooter We hope you create a new idea of riding the scooter There are more idea of riding way unlimitedly 29 TUSA ata TOKYO LOSANGELES SYDNEY AMSTERDAM TUSA TABATA USA INC 2380 Mira Mar Ave Long Beach CA 90815 U S A Toll Free 800 482 2282 T 562 498 3708 F 562 498 1390 Country Code 1 info tusa com TABATA CO LTD JAPAN 1 3 17 Higashikomagata Sumida ku Tokyo Japan 130 0005 T 03 3624 2816 F 03 3623 9902 Country Code 81 www tabata jp TABATA MFG JAPAN IBARAKI FACTORY 651 2 Industrial Park Hitachiomiya City Ibaraki Japan 319 2134 T 0295 53 3133 Country Code 81 TABATA AUSTRALIA PTY LTD 4D James Ruse Business Park 6 Boundary Road Northmead NSW 2152 T 0 2 9890 4555 F 0 2 9890 5222 Country Code 61 T E C TABATA EUROPE CORPORATION B V Den Brielstraat 2b 1055 RV Amsterdam The Netherlands T 020 58 11 280 F 020 58 11 285 Country Code 31 TABATA MFG TAIWAN CO LTD 54 8 Hsutsogang Nankang Vil Tayuan Hsiang Tao Yuan Hsien Taiwan R O C T 03 386 5100 F 03 386 5103 Country Code 886
39. wn and relocking the clamp ring into position You can find the right position by pushing down gently on the propeller Assy while slowly spinning the propeller manually Please confirm the clamp ring is seated down correctly and that the O ring is not protruding 15 Maintenance Note on Maintenance and storage MISTEP1 The main sealing O rings There are four main sealing O rings Two large O rings between the top cover head Assy and body Assy and two smaller ones between the body Assy and propeller Assy You must replace these O rings if they are in any way damaged deformed or creased We highly recommend that these O rings be changed annually Please use an O ring pick made of soft plastic when removing the O ring from the groove Please never use a screwdriver or a sharp tool O rings for propeller Assy Z CAUTION The grease used for lubrication of the O rings must be the silicone grease specified by Nippon Sensuiki Other types of grease can cause the plastic in the housing to split and for O rings to expand which may cause serious leakage to occur Please note that the damage caused by the use of grease other than that specified by Nippon Sensuiki will avoid any warranty MISTEP2 Body Impact absorbent acrylonitrile butadiene styrene resin is used for the body of the SAV 7 EVO2 scooter saddle This material excels in strength and durability and looks great after years of service However the materia
40. xtends your dive time In the past some divers have become fatigued from the energy and effort required to hold and steer an underwater vehicle In addition to being a potential source of fatigue the traditional hands on riding style requires the user to place themselves above the vehicle rather than inline Improvement in transportation options The TUSA underwater vehicle improves your ability to transport items underwater Your hands are free to carry what you need Additionally fold out wings on both sides of the saddle are available for towing the divers or attaching other items of equipment The innovative TUSA underwater vehicle challenges divers to create and find new techniques and methods of use Go out and enjoy diving with this great new generation diving product If you want more information about TUSA DPV please check the website http www tusa com Instruction manual Introduction Contents Before reading the manual Main warnings and notes Specification Specification Preparation Preparation Preparation Operation and use Operation and use Maintenance Maintenance Trouble shooting Riding manual eee 18 20 22 24 26 27 28 29 For the safety diving STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 Each part name spec Exclusive battery charger Charging the battery Battery warranty Battery care Check before use confirming operations Entry method Exit How t
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