Max-Prop Ecowind Installation Instructions
Contents
1. MAX 4 PROP AUTOMATIC FEATHERING PROPELLERS PY Instruction Manual 4 BLADE ECOWIND INTRODUCTION Thank you for having chosen a MAX PROP automatic feathering propeller for your vessel This instruction booklet is designed to answer all your questions on installation and use of the MAX PROP Please read it carefully and verify the correct working of the propeller before installing it on your boat INSTALLATION The propeller is supplied already assembled for right or left rotation according to the information received at order and with the pitch required if discussed at the time of the order and is therefore ready to be fitted on the shaft MAX PROP parts are NOT interchangeable Make sure if you receive more than one propeller that you do not interchange parts Please use Fig 1 Xl xl x2 3 For Sail Drives A Fit the MAX PROP onto the propeller shaft like a fixed propeller and be sure that the key is proper dimension A properly fit key has almost no clearance side to side but a very small clearance on its upper surface This clearance is to avoid the propeller being pushed off center by a key which is too tall If you are not sure remove the key and slide the propeller onto the shaft making a mark on the shaft where the front of the hub stops on the shaft Re insert the key and slide the propeller back on to the shaft if it slides up to your mark it is fine If not you will need to file down the s2. e bolt from the gear puller is not long enough to contact the end of the propeller shaft inside the MAX PROP the MAX PROP nut can be loosened and left in place In this scenario the bolt from the puller will push against the back of the nut to release the propeller from the shaft MAX PROP PATENTED PROPELLERS Inc 12532 Beverly Park Rd Lynnwood WA 98087 Tel 425 355 3669 Fax 425 355 3661 info pyiinc com www max prop com
3. ides or top of the key until the propeller slides completely onto the shaft B Tighten the nut and secure it in place using the two allen head screws NUT SCREWS ZINC SCREWS pr mc REGULATION RING T m Li 95 Fig 1 C Fill the prop with marine grease supplied using a grease fitting supplied inserted into the grease holes on the side of the propeller marked GREASE The MAX PROP propeller works properly only if the central body is completely filled with the correct grease Verify that the grease is oozing from the rotating joints between the central part and the hub so that all of the moving surfaces are perfectly oiled The grease used must be a type of grease approved by MAX PROP so it will remain fluid after years of use and will not get too stiff in cold water 39 399 38 399 359389 39399 D Move the blades into the feathered position making sure that the rounded trailing edges of the blades are aft as shown in Fig 2 yes Fig 2 E Before launching the boat it is absolutely necessary to operate as follows e Hold the propeller shaft e Check that the blades of the propeller rotate freely from the forward to the reverse position just by a light effort In the feathered position the blades must be perfectly lined up and set like Fig 1 Check that
4. n Fig 3 Once the insert size is chosen remove the original by removing the two screws and place the new size into the slot and lock it with the two scerws as in Fig 4 7 6 5 4 3 2 DIFFERENCE IN BLADES ANGLE BETWEEN FORWARD POSITION AND REVERSE POSITION BLADES ANGLE IN FORWARD POSITION 42 45 48 51 54 57 60 63 66 TYPE OF INSERT BLADES ANGLE IN REVERSE POSITION NUMBER MARKED INSERT ON INSERT 5 6 7 PROPELLER USE The MAX PROP ECOWIND works automatically By putting the transmission in gear the blades will engage in either forward or reverse WARNING do not change from forward to reverse and vice versa when the engine is running at high RPM and feathers from forward position when you turn off the engine and lock the shaft The best way to feather the propeller is Power at 2 to 3 knots in forward e Kill the engine while still engaged in forward If your propeller has been greased properly it will feather in a fraction of a second as soon as you stop the shaft from freewheeling DO NOT kill the engine while in reverse In this case the blades will be in the reverse position and cannot feather You can actually use this feature to drive a shaft alternator Modern transmissions are either mechanical or hydraulic With a mechanical transmission the best way to stop the shaft freewheeling is to engage the t
5. nce hole in front of the regulation ring Pull the regulation ring towards the bow of the vessel and turn it to increase or decrease the number according to your need Set the regulation ring so that the hub reference hole matches with the number on the ring corresponding to the chosen number In order to make this operation easier we suggest screwing two screws into the threaded holes on the regulation ring and using these screws for leverage Once you have aligned the reference to the selected number make sure that you reset the ring so it snaps back in place e For security lock the regulation ring by placing a set screw into its hub reference hole in the propeller hub Please note that for the MAX PROP CLASSIC and FAST models the same propeller can be used as right or left rotation however for the ECOWIND model the rotation must be chosen upon order and cannot be changed REGULATION RING HUB REFERENCE HOLE SCREW FOR RING ROTATION Fig 3 B PITCH REGULATION IN REVERSE Only after finding the ideal setting in forward should you adjust the pitch in reverse The ECOWIND is delivered with the most common insert already in place If adjustment is required choose a different insert and fit it into the slot in the propeller see Fig 4 There are 7 inserts available and each one has a particular thickness Fitting a different insert will produce a specific pitch in reverse as noted i
6. ransmission in reverse WARNING engage the reverse only after the engine has stopped completely With a hydraulic transmission you must shut off the engine while still engaged in forward The remaining hydraulic pressure will en effect lock the shaft for a few moments enough for the MAX PROP to feather MAINTINANCE The propeller must always be completely filled with recommended grease the propeller should be greased at least once a year Make sure that you always keep the zinc anodes in good condition They must be replaced at least once a year even if they still look ok The propeller must be protected by a lot of zinc so also use a zinc on the shaft when possible When replacing it make sure that you clean the surfaces between the zinc and the propeller shaft in order to have a good electrical contact WARNING It is important to follow the instruction below carefully so as to avoid a shock load to the gears on the blades and cone gear that could be damaging to the teeth When going from forward to reverse and the opposite it is necessary to idle down and shift at low RPM s between gear that could be damaging to the teeth PROPELLER REMOVAL In order to remove the propeller you must first remove the zinc and remove the nut Next fit a long armed gear puller over the front of the propeller as show in Fig 6 Tightening the center bolt of the gear puller will release the MAX PROP from the propeller shaft If th
7. the propeller body is full of fluid marine grease e Make sure that the propeller is protected from galvanic corrosion by using the usual zinc anodes on the propeller and the shaft 3 PITCH ADJUSTMENT MAX PROP does not require a pitch setting On this model the blades rotate automatically to the desired pitch within an adjustable range under any sailing conditions This unique feature radically improves both the vessel performance under power as well as the fuel consumption A PITCH RANGE ADJUSTMENT IN FORWARD MAX PROP ECOWIND is delivered assembled with a pitch setting that we will call basic pitch The basic pitch corresponds to the angle that the blades achieve in a non load condition when the torque opposing propeller rotation is 0 The best basic pitch is generally between 50 60 depending on diameter When you engage the engine in forward and the propeller starts rotating the blades angle decreases automatically and sets itself at a pitch that corresponds to the load demand and keeps changing according to changes of sailing conditions or throttle demand against the wind or with yacht position to the waves full or partial tanks clean or dirty bottom etc If at full throttle the engines cannot achieve manufacture recommended maximum RPM or if the engines reach max RPM too easily the basic pitch can be easily adjusted as follows referring to Fig 3 Remove the Set Screw from the hub refere
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