Alamarin Jet AJ 160 Operation And Maintenance Manual

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  • Page 2 Operation and Maintenance Manual alamarin-jet We congratulate You on purchasing a new water jet propulsion unit and hope that you can enjoy it. Alamarin-Jet Oy has developed and manufactured water jet propulsion units since 1976. The propulsion units are used e.g. in pleasure and work boats, as well as in fast rescue boats with a number of different engines.
  • Page 3 Alamarin-Jet Oy. The instruction covers the following jet propulsion models: AJ 160 AJ 180 AJ 185 AJ 230 If the given information is type specific, this will be expressed in the text. In this manual, clarifying figures will be used.
  • Page 4: Table Of Contents

    Operation and Maintenance Manual After Sales Questionnaire..................6 Declaration of Incorporation for Partially Completed Machinery ......8 1. The Jet Propulsion Unit ................... 9 2. Operation ....................... 10 2.1. Using for the First Time ................10 2.2. Steering and Controlling ................. 11 ...
  • Page 5 Operation and Maintenance Manual APPENDIXES Appendix 1. Maintenance Log ................35 Appendix 2. SE-01....................36 Appendix 3. SE-02....................37 Appendix 4. Recommended Greases and Oils and Tightening Torques of the Screws ..................38 Appendix 5. Exploded Views ................. 39 Appendix 6. Warranty & Ownership ..............40 Version 1.5...
  • Page 6: After Sales Questionnaire

    AFTER SALES QUESTIONNAIRE AFTER SALES QUESTIONNAIRE In order to improve our products and operations, we at Alamarin-Jet Oy are collecting feedback from the end users of water jet propulsion units. This form is intended to make it as simple as possible for you to give us that feedback. You can fill out the form in the User’s Manual and send it to us via mail or fax, or scan and send it via e-mail.
  • Page 7 AFTER SALES QUESTIONNAIRE Return address: ALAMARIN-JET OY Tuomisentie 16 FI-62300 HARMA FINLAND EUROPE Fax: 00 358 10 7745 269 E-mail: sales@alamarinjet.com TEST REPORT Date: Test weight of boat Number of persons Wind speed m/s Water temperature Jet serial number Engine and gear GPS/clock Signature Engine speed...
  • Page 8: Declaration Of Incorporation For Partially Completed Machinery

    Operation and Maintenance Manual DECLARATION OF INCORPORATION FOR PARTIALLY COMPLETED MACHINERY (Machinery Directive 2006/42/EC, Annex II, 1.B.) Manufacturer: Alamarin-Jet Oy Tuomisentie 16 FI-62300 Härmä, Finland Compiler of the technical file: Hannu Rantala, Technical Manager Alamarin-Jet Oy Tuomisentie 16 FI-62300 Härmä, Finland Description of the partially completed machinery: Water jet propulsion device...
  • Page 9: The Jet Propulsion Unit

    Operation and Maintenance Manual The Jet Propulsion Unit Alamarin-jet water jet propulsion unit is a single stage axial flow pump, which produces a high volume flow rate and thrust with high efficiency. The operation of the unit is based on increasing the water flow rate in the nozzle. The change in the flow rate creates a reacting force in the direction of the flow, which thrusts the boat forward.
  • Page 10: Operation

    Operation and Maintenance Manual 1010 Every propulsion unit has its own serial number. The serial number has been marked on the type label and in addition it has been stamped both on the body of the propulsion unit and on the inspection hatch cover.
  • Page 11: Steering And Controlling

    Operation and Maintenance Manual When you start the engine for the first time: - It may be possible that ”clinking” is heard from the jet during the first minutes. This should usually disappear, however, when the impeller gap becomes fit. - The reversing deflector’s hydraulic control system needs more oil because the hoses and cooler are empty.
  • Page 12: Steering

    With this lever, it is possible to control the hydraulic system mechanically or the mechanical system electrically. In models AJ 160 and AJ 180/185 a fully mechanical system can be used, as long as it is sturdy enough.
  • Page 13 Figure 2.2.1-2 Figures 2.2.2-2 and 2.2.2-3 illustrate the hydraulic control system used in AJ 230. For models AJ 160 and AJ 180/185, only the round type reversing deflector is available. Figure 2.2.2-3 When the reversing...
  • Page 14: Operating In Shallow Water

    Operation and Maintenance Manual 1414 The centre position of the reversing deflector corresponds to gear’s ”idle” position; even though the drive is on, the boat stays still. The centre position is not absolute, it depends on the power of the jet flow. Finding the centre position is done by testing during the first driving hours.
  • Page 15: Operating In Reedy Water

    Operation and Maintenance Manual 2.4. Operating in Reedy Water At planing speeds, a jet boat usually crosses reed fields without difficulty. In difficult conditions however, clogging may be possible. In boats equipped with a gear box, cleaning the intake duct is easy because at reverse gear, a back flow is created in the duct.
  • Page 16: Dry Running

    Operation and Maintenance Manual 1616 With these simple instructions it is possible practically without exception to clean the jet even after the boat has stopped completely in reedy water. Unlike with other propulsions, in boats equipped with the jet the engine stops very rarely as a result of a reed blockage.
  • Page 17: Ventilation

    Operation and Maintenance Manual If cavitation is apparent, the following things should be checked. Check through the inspection hatch that: 1. The grass rake (figure 2.6.1-1) is not clogged (by grass, reed, plastic, stones etc.). Figure 2.6.1-1 2. There are no extraneous objects in the stator or nozzle unit or the impeller (figure 2.6.1-2) (rope, reed entagled in the drive shaft, stones in the outlet port)
  • Page 18: Functions

    Operation and Maintenance Manual 1818 Functions 3.1. Transmission The jet takes its propulsion power from a petrol or a diesel engine. The most common way to transmit the power is through a 1:1 gear box, but direct drive is also possible and functional.
  • Page 19: Bearing

    3.3. Control System 3.3.1. Electronic Reversing Deflector Control System The system is available for models AJ 160, AJ 180 and AJ 185. The main components that the system consists of are #1 a control lever (potentiometer), #3 an electronics unit and #4 a spindle motor. See figure SE-01 in Appendixes.
  • Page 20: Hydraulic Reversing Deflector Control System

    Operation and Maintenance Manual 2020 3.3.2. Hydraulic Reversing Deflector Control System The system is available for AJ 230. It includes a rotary valve which simplifies the system considerably. The reversing deflector is controlled (cf. figure 3.3.2-1) mechanically with a cable (A) which operates the valve regulator (B).
  • Page 21 Operation and Maintenance Manual IF THE OIL IN THE SYSTEM IS NOT COOLED, THE MANUFACTURER IS NOT RESPONSIBLE FOR POSSIBLE DAMAGES WHICH DERIVE DIRECTLY OR INDIRECTLY FROM THE OIL OVERHEATING! An extra cooler must be installed in the following cases: 1.
  • Page 22: Raw Water Cooling

    Operation and Maintenance Manual 2222 3.4. Raw Water Cooling The jet comes complete with the possibility to connect the engine cooling water (cf. Figure 3.4-1). The engine does not need a separate water pump. However, if the cooling water is taken with a separate pump, the jet’s raw water line is stoppered. At the beginning of the line, there must be a tap with which the line can be shut temporarily for example during cleaning of the filter or other maintenance.
  • Page 23: Painting

    Operation and Maintenance Manual 1. Inspection hatch cover 2. Reversing deflector 3. Steering nozzle 4. Stator 5. Body (2 pcs) Figure 3.5-1 3.5.2. Painting The aluminum castings have also been protected by painting. Painting efficiently prevents the propagation of various forms of corrosion e.g. pit corrosion. Bare aluminum is liable to corrosion in difficult conditions.
  • Page 24: Maintenance

    Operation and Maintenance Manual 2424 Instead, a boat bottom made of reinforced plastic can be painted using copper bearing antifouling paint. In this case, leave a 50mm unpainted area around the propulsion unit in the stern and on the bottom of the boat. See picture 2.3-1. Stern Stern Mounting...
  • Page 25: Washing The Jet

    Operation and Maintenance Manual 4.2.1. Washing the Jet Every time the boat is lifted out of the water, it is advisable to wash it with fresh water. This clears possible salt accruals and impurities, which leads to the reduction of corrosive effect due to conditions.
  • Page 26: Lubricating The Control System

    Operation and Maintenance Manual 2626 Technical specifications for the Example greases: lubricant greases: - Würth Multi-Purpose Grease - lithium soap and a thickener with EP additives - FAG Multi2 - mineral oil as a base oil - FAG Load 220 - NLGI class 2 - Mobil XHP 222 - operating temperature range –...
  • Page 27: Changing The Zinc Anodes

    Operation and Maintenance Manual 4.2.4 Changing the Zinc Anodes The jet is protected with passive cathodic protection. The functioning of the zinc anodes is crucial from the point of view of corrosion. The zinc anodes must be changed when they have worn down to half of their original size. Every aluminum component has been protected separately with a zinc anode.
  • Page 28 Operation and Maintenance Manual 2828 The Maintenance and Repair Table gives detailed instructions for checking different targets. Service and Maintenance Chart daily weekly montly every 6 months yearly Hydraulic reversing deflector operating system hydraulic oil amount possible leaks (hoses, couplings) cable fastening test run and accuracy of reversing deflector movement...
  • Page 29: The Impeller

    Operation and Maintenance Manual daily weekly montly every 6 months yearly Jet inlet duct cleaness of inlet surfaces (no marine growth etc.) Front bearing Lubrication tightness of bolts general technical condition of bearing End bearing Lubrication general technical condition of bearing Impeller allowance of impeller technial condition of impeller blades...
  • Page 30 Operation and Maintenance Manual 3030 The size marking of the impeller can be found both at the front and rear end (figure 4.3- 1). It can be seen through the inspection hatch and by removing the stator. Marking showing the size of the impeller Figure 4.3-1 The condition of the front edge of the...
  • Page 31: Removing The Impeller

    Operation and Maintenance Manual 4. If there is no apparent fault, the boat must be lifted out of the water for closer inspection. 5. Remove the impeller. See section Removing the Impeller below. 6. Check the impeller more closely. You can always ask the importer or manufacturer for instructions.
  • Page 32 Operation and Maintenance Manual 3232 3. Open the fastening bolts (4 pcs) of the stator. After this, the stator, the deflector and the nozzle come off as a whole. (In figure 4.3.1-3 the reversing deflector has been removed for clarity). Figure 4.3.1-3 The fitting of the stator and the hull of the propulsion unit with each other is tight.
  • Page 33: Fitting The Impeller

    Operation and Maintenance Manual 4.3.2. Fitting the Impeller 1. Screw the adjuster sleeve (A) and the possible additional ring on the shaft. The sleeve has a left-handed threading. Set the wedge (B) in the groove reserved for it. Figure 4.3.2-1 2.
  • Page 34 Operation and Maintenance Manual 3434 3. Place the impeller on the shaft along with the cone. Tighten the screws finger tight. 4. Push the impeller as far in the intake duct as it goes (B). BE CAREFUL NOT TO LEAVE YOUR FINGERS BETWEEN THE IMPELLER AND THE CONE! Use the working position (A) shown in figure 4.3.2-1! Tighten the screws to a torque of 20 Nm.
  • Page 35 APPENDIXES - Operation and Maintenance Manual Appendix 1: MAINTENANCE LOG MAINTENANCE LOG Commissioning Service Made by: Date: Commissioning Service Made by: Date: Commissioning Service Made by: Date: Commissioning Service Made by: Date: Commissioning Service Made by: Date: Commissioning Service Made by: Date: Version 1.5...
  • Page 36 APPENDIXES - Operation and Maintenance Manual Appendix 2: SE-01 Version 1.5...
  • Page 37 APPENDIXES - Operation and Maintenance Manual Appendix 3: SE-02 Version 1.5...
  • Page 38 APPENDIXES - Operation and Maintenance Manual Appendix 4: RECOMMENDED GREASES AND OILS AND TIGHTENING TORQUES OF THE SCREWS 1. The grease used for lubricating the bearings of the propulsion unit must meet the requirements below. - lithium soap and a thickener with EP additives - mineral oil as a base oil - NLGI class 2 - operating temperature range –25…130˚C...
  • Page 39 APPENDIXES - Operation and Maintenance Manual Appendix 5: EXPLODED VIEWS When delivering this manual in paper form, the manufacturer has added to the following pages the exploded views of the propulsion unit model with which the manual is delivered. In the electronic version the exploded views as a separate file. Version 1.5...
  • Page 40 APPENDIXES - Operation and Maintenance Manual Appendix 6: WARRANTY & OWNERSHIP Version 1.5...

This manual is also suitable for:

Aj 180Aj 185Aj 230

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