Owners Manual Owners Manual
Contents
1. direction If the starboard bow is high push the starboard side Bow Down direction until the boat is level TRIM TABS WITH POWER TRIM GETTING OPTIMUM SPEED AND POWER Using your trim tabs in conjunction with your power trim will give you increased speed and power 1 Adjust the trim tabs to achieve a planing attitude 2 Use the power trim to position the prop path parallel to the water flow 3 If necessary re adjust the trim tabs to fine tune your tabs In other words use your trim tabs to trim the boat and your power trim to trim your prop CORRECTING FOR PORPOISING Porpoising is a condition more common in faster performance boats As speed increases the bow repeatedly rises out of the water until gravity overcomes lift and the bow bounces down Press Bow Down in half second bursts As the trim tabs deflect the porpoising subsides and your speed should remain the same or increase Only a slight amount of trim tab deflection should be necessary SAFETY PRECAUTIONS e Do not overtrim particularly at high speeds as the bow will dig in and wave action may cause the boat to veer e While underway do not move one trim tab significantly farther down than the other as undesirable listing could occur e Use your trim tab helm control with caution e For best maneuverability trim tabs should be fully retracted in a following sea or when running an inlet e Improper use of trim tabs can cause an accident2. hn Y ON OFF STBD TAB v System Information continued MAINTENANCE e Periodically check fluid level in HPU With trim tabs completely retracted fluid level should be about 2 from bottom of reservoir approximately 22 ounces To refill remove lexan cover and filler plug located at the front left hand corner of the reservoir FILL WITH ANY TYPE AUTOMATIC TRANSMISSION FLUID ATF ONLY Brands or types of ATF can be mixed Running HPU with an excess or lack of fluid will not cause damage Periodically check for clean electrical connections on back of control HPU ground wire and quick disconnect plug Cold temperatures do not affect the trim tab system No winterization is necessary SALTWATER ONLY To deter electrolysis a zinc anode should be attached to the top of each trim tab Zinc must make direct contact with stainless steel Do not paint zinc Do not ground trim tabs to other underwater appendages Paint trim tabs to discourage marine growth 1 Clean surface of all grease oil dirt 2 Apply two coats of epoxy metal primer 3 Apply two coats of anti fouling paint Actuator including the piston may be painted Unpainted trim tabs may acquire an orange discoloration THIS OXIDATION OF SURFACE CARBON MOLECULES IS NORMAL The integrity of the stainless steel is not affected Orange coating can be cleaned off but may eventually return Note This discoloration should not be confused with the pitting and corro
3. Part A1103 made of flexible nylon Remainder of actuator made of high impact fiberglass filled nylon HPU draws approximately 18 amps broken in and operates on 12 volts DC except 24 amp 32 volt HPU s Approximately 22 ounces of ANY TYPE AUTOMATIC TRANSMISSION FLUID ATF is required to fill reservoir to proper level for single actuator installations With trim tabs fully retracted proper fluid level is about 2 from bottom of reservoir The HPU forces both trim tabs full up to full down in 9 10 seconds individually in 4 5 seconds Trim tab travel on dual actuator systems takes twice as long Controls on 12 volt systems use 20 amp in line fuse 24V amp 32V use proportionally smaller Tubing has 1 4 outside diameter and 1800 Ib maximum pressure Wire colors and their functions Red Port valve Green Starboard valve Blue _ Motor forward pump pressure Yellow Motor reverse pump retract Black on HPU Ground Orange on helm control Positive SysteM formation Bennett Trim Tabs are built to rigid quality standards However the marine environment is harsh So in the unlikely event a malfunction occurs here is some helpful information 1 If trim tabs do nothing no movement no sound from HPU e Inspect for blown 20 amp in line fuse in helm control s orange wire e Inspect for disconnected or corroded connections on HPU ground wire orange positive wire from helm control and quick disconne
4. A momentary delay occurs from the time you press the control to the time the boat reacts This is normal and varies with boat speed Be careful not to over trim your boat An over trimmed boat will plow or bow steer If you over trim the boat simply press Bow Up and the bow of the boat will rise TRIMMING FROM A BRIDGE OR TOWER When steering from a bridge or tower a good trimming method is to watch the bow spray stern wake or the rooster tail An untrimmed boat will produce more spray aft of the bow and it will produce a larger wake When trimmed the bow spray is farther forward the wake is reduced and the rooster tail is smaller and farther behind the boat You ll also notice that the engine RPM will increase when the boat is properly trimmed How to Useyour Trim Tabs continued RUNNING IN ROUGH WATER When running in a chop or heavier seas press Bow Down This will bring the V of the hull in contact with the waves rather than having the waves pound the hull and your passengers In a following sea or when running an inlet the trim tabs should be fully retracted for maximum rudder response CORRECTING FOR A LIST Bennett Trim Tabs are operated individually so that you can correct for listing Your control is designed so that you can use it intuitively Do not think about what the trim tabs are doing just concentrate on the bow If the port bow is high push the port side Bow Down
5. Bennett Trim Tab systems in the United States carry a five 5 year limited warranty against manufacturing and defects Bennett electronics Tab Position Indicator Auto Tab Control Electronic Indicator Control and Auto Tab Retractor carry a three 3 year limited warranty against manufacturing and workmanship defects PLEASE NOTE Damage to the trim tabs due to electrolysis is not covered by warranty No labor costs of replacement haulout or miscellaneous charges are covered Contacting Bennett Marine first may save considerable time trouble and expense The foregoing is in lieu of any and all other warranties expressed or implied including any warranty of merchantability or fitness for a particular purpose There are no other warranties which extend beyond that set forth above Warranty Return Procedure Remove faulty part and return to Bennett Marine No pre authorization is required Parts covered under warranty will be repaired or replaced without charge please insert a note in the box with your instructions and return address If necessary a replacement part can be sent in advance of the faulty part s return IMPORTANT IF HYDRAULIC POWER UNIT IS BEING RETURNED PLEASE DRAIN FLUID BEFORE SHIPPING Customers Outside the USA Please contact your local Bennett Marine distributor for warranty and return procedures in your respective country IF YOU HAVE ANY QUESTIONS PLEASE CONTACT BENNETT MARINE CLIENT SERVICES Benne
6. ct plug 2 If HPU runs but trim tabs do not move e Inspect for disconnected or corroded red and green wire connections at helm control and quick disconnect plug e The following test can be used to help isolate malfunction Remove wires from helm control and touch together as follows Operation Reaction Orange blue red Port trim tab down Orange blue green Starboard trim tab down Orange blue red green Both trim tabs down Orange yellow red Port trim tab up Orange yellow green Starboard trim tab up Orange yellow red green Both trim tabs up If trim tabs function in each of the above combinations check helm control If during this test trim tabs continue to malfunction inspect HPU 3 If one trim tab operates and the other one does not e Inspect for disconnected or corroded red or green valve wire connections at helm control and quick disconnect plug Red wire operates port trim tab green wire operates starboard trim tab e Reverse hydraulic lines at front of HPU to determine if malfunction is in HPU or actuator hydraulic connections If after reversing lines symptom shifts to other trim tab malfunction may exist in HPU If symptom remains on the same side malfunction may exist with the actuator hydraulic connections 4 If trim tabs go down but will not retract e Inspect for low voltage of the battery Check battery for voltage while HPU or another accessory is running If vo
7. e Hatch Lifter system raises hatches at the press of a switch up to 250 lbs Operation is smooth and quiet For space and cost efficiency the system shares the same Hydraulic Power Unit as the trim tabs The Hatch Lifter cylinder features a stainless steel shaft with an anodized aluminum housing Various kits are available with cylinders in 12 18 and 24 strokes Also available independent of trim tabs How to Useyour Trim Tabs 2 Se GETTING AND STAYING TRIMMED Most boats break over get on plane at a particular speed This speed is determined by weight distribution water conditions etc Bennett Trim Tabs enable your boat to plane at speeds lower than natural planing speed By pressing the control to the Bow Down position your trim tabs move down This will raise your stern and lower your bow getting you up on plane faster and increasing your speed YOUR BOAT S OPTIMUM ATTITUDE A good way to find your boat s optimum attitude is to conduct this test Get out and run it lightly loaded at full speed on flat water Notice the bow in relation to the horizon This should be your boat s best running attitude You can use your trim tabs to recreate this perfect attitude regardless of weight distribution speed or water conditions GETTING USED TO THE FEEL OF YOUR TABS When learning to use your tabs begin by pressing the helm control in half second bursts for gradual trimming
8. ltage is less than 10 volts valves may not open e Inspect for disconnected or corroded connections on helm control and quick disconnect plug This general information is not intended to be complete Please feel free to call Bennett Marine to assist in solving situations not clarified or addressed above Bennett Marine customer service is available to help Monday through Friday 8am to 5pm Eastern time 954 427 1400
9. or injury Bennett Trim Tabs have a significant effect on the operation and versatility of your boat No one knows your boat better than you the best learning method is to spend time getting familiar with your boat s reaction to the trim tabs As your experience with Bennett Trim Tabs increases so will your enjoyment Always operate your boat with safety first in mind Otherpennett Products Tab Position Indicator TPI The Tab Position Indicator is attractive compact and easy to install Compatible with all Bennett Trim Tab systems the TPI is as durable as it is precise All sensors and wiring are fully enclosed within the trim tab system and protected from the marine environment It is easily installed with nothing more than a drill and a screw driver Auto Tab Control ATC Like Cruise Control for Your Boat Your boat will run most efficiently when it is properly trimmed With a Bennet Auto Tab Control you just turn it on and it does the rest It constantly monitors your boat s position and uses your trim tabs to maintain a perfect cruising attitude Electronic Indicator Control Three in one The popular Bennett rocker switch now has a built in Trim Tab Indicator and Auto Tab Retractor Like the TPI it is waterproof highly accurate and features variable intensity LEDs for night or day With the auto tab retraction feature just turn off your ignition switch and your tabs automatically retract
10. pressed the trim tabs move into position Water force on the trim tab surface creates upward pressure raising the stern and lowering the bow Properly sized Trim Tabs improve the performance of your boat in a much wider range of weight weather and water conditions Bennett Trim Tabs operate the reverse of what you might think The port trim tab lowers the starboard bow Conversely the starboard trim tab lowers the port bow The control is wired so that all you have to do is press the control in the direction you want the bow to move Don t worry about which trim tab is moving The proper use of Bennett Trim Tabs becomes second nature after a short time OtherBennett Products continued Auto Tab Retractor ATR The ATR automatically retracts trim tabs when boat s ignition key is turned to the off position Retraction prevents trim tab damage for trailered or dry stored boats Available in 12 24 and 32 volts Sport Tabs Sport Tabs are gloss black heavy duty stainless steel trim tabs designed for faster higher performance boats OtherBennett Products continues External Line Connection Actuator The External Line Connection Actuator is used in cases of total inaccessibility inside the transom Unlike the standard actuator the external line hydraulics enter the transom by means of external tubing above the waterline Recommended only when necessary No additional charge Hatch Lifter Th
11. sion of electrolysis SAFETY INFORMATION e Take immediate action to correct any malfunction or failure of your trim tabs e Occasionally check for loose or corroded wiring connections e Stepping on the trim tab may cause damage to the unit or injury e Make sure the HPU is mounted in a dry location to avoid drenching and consequent failure e Leaving the actuator extended when boat is not in use will not cause seal damage e Occasionally inspect HPU fluid level e REFER TO SAFETY PRECAUTIONS ON PAGE 4 HYDRAULIC WER UNIT HPU 8 ae v O TO NEGATIVE A GROUND Diagram Description 7 OE E a a a 36 Fluid Reservoir 10 x 1 Screw Filler Stack Filler Plug Mounting Bracket for HPU Type 25 Thread Cutting Screw Motor Strap Solenoid Valve Pipe Nipple 3 unless otherwise specified Piston with O Ring Fuse Holder SysteEMs 5 ecifications Part VP1139 H1180 VP1140 H1179 VP1138 VP1154 VP1142 VP1135 R red VP1135 G green VP1144 VP1146 VP1141 T1127 T112520 H1173 H1172 H11713 A1103 H1174 A1105 A1109 A1115 A1113 varies with size varies with size EH1071 varies with size H1175 WH1000 VP1143 H1177 ES2000 H1176 H117 system S pecificatio NS continued SYSTEM COMPONENT SPECIFICATIONS Trim Tabs Actuators Hydraulic Power Unit HPU Helm Control Hydraulic Tubing Wire Harness Stainless steel Upper hinge material
12. tt Marine Inc Made in the USA Components of rf 550 Jim Moran Boulevard Bennett Trim Tabs are made under arine one or more of the following US Deerfield Beach Florida 33442 patents 3 062 167 3 111 103 USA 3 399 643 3 628 486 3 628 487 Phone 954 427 1400 3 695 204 Fax 954 480 2897 web www BennettTrimTabs com 2004 Bennett Marine Inc y ih Marine Superior by Design Warranty Owners Manual keep with boat owners information The Most Reliable Trim Tab System in the World Superior Design Congratulations you are the owner of the finest trim tabs available Bennett Trim Tabs provide you with control never thought possible Properly sized trim tabs get you up on plane quickly and correct listing at nearly any speed regardless of weight distribution or sea conditions These benefits add up to less drag on the hull reduced engine stress increased speed and decreased fuel consumption If you have any questions not answered in this manual please feel free to contact us Visit the Bennett Marine Web Site It has a wealth of advice and information about owning amp operating your trim tabs g Installation Video How Trim Tabs Work amp How to Use Them Bennett Trim Tab Accessories Parts and Pricing Trouble Shooting Guide Rapid e mail Response to Questions How Trim Tabs Work Bennett Trim Tabs are attached to the bottom edge of the transom When the helm control is
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