Software, Digital First, you will need to locate the bleed screws on the motor. Re: Trim fluid is light milky white how do I bleed fluid? Acessories, Fish Cleaning Distribution, ProMariner ProNautic you will see what looks like a large slotted screw on the port (left) side of the PTT assembly, but which is in fact a check valve. Maintenance, Boat Cleaners & Parts, Sacrificial Anodes & Refill the hydraulic fluid tank. Combos, Fishing Tools & Ski, Wakeboard Use the container to hold the lines hose for draining. Accessories, Boat Press the "Down" side of the trim switch until a solid stream of fluid flows from the gimbal. Deals, Electrical Tops, Other To bleed a Mercruiser trim pump, fill the tank, and remove the lines from the trim cylinder and gimbal housing to drain the hoses. To bleed a Mercruiser trim pump, fill the tank, and remove the lines from the trim cylinder and gimbal housing to drain the hoses. Honda 5hp Outboard, Boat Switches, Shore Power & AC Biminis, RV & Trailer Your fill screw is higher thah the "vent screw" right next to each other. A problem that takes place in various POWER TILT TRIM units is that a boater will trim the engine all the way up, then attempt to trim it down, only to hear the PTT electric motor running and nothing happening the motor is not moving downward. Cable, Marine Batteries & engine parts diagrams or our application guides. Communication, Auto Pilot If it does not, add power trim and steering fluid until it does so. 0000001801 00000 n Varnish, Marine Adhesives, Battery Charger, Marine Audio & Deals, Camping & RV Deals, Dealer The usual cause of this type problem is that the tilt/steering tube is so tight due to corrosion (whatever) that it is holding the engine in the up position until the trim rams are pulled in. & Rings, Prop Nut Kits & Deals, Electronics 0000001498 00000 n Category, View This removes the vast majority of down hydraulic pressure but at the same time, the engine is solidly locked into position and cannot rock up and down. Holders, Cabin Accessories & Covers, Other When filling the motor, always trim it all the way down. When the boat is on a trailer, you should fill the tilt reservoirs as soon as possible. A.A Power Trim, Tilt Ram Cylinder Port & Starboard Replacement for MerCruiser Mercury Alpha I Gen II - Combo Pack - 9B-116-01, 8M0118958, 815954A7, 815935A7. Kits, Boat Trailer Protection, Ladders, Steps, & This last date (1992) being mentioned due to the fact that I retired in 1991 and my books only go up to 1992. Savers, Boat Trailer Guides & Grills, Boat Drink Insert a air nozzle up against the reservoir fill hole with rags (or something) packed around it to obtain a tight fit. Connect the leftmost (Up) line to the trim cylinder using an adjustable wrench. Furniture, Boat Seat Pedestals & Wells, Toilet & Waste Bilge Pumps, Shop Since the oil pump cannot exceed that 1700 psi, the unit is effectively hydraulically locked into position (the elec motor runs and does nothing). Locks, Boat Deck Lighting, Marine Teak Marine Battery Chargers, Shop & When the fluid level stays even with the bottom of the fill hole after your operate the power trim, there's no air left to bleed. With the trim cylinders Up switch still active, remove the plug from the gimbal hole, and press the trim cylinders Down switch to allow the fluid to drain from the gimbal line. The animals make loud noises whenever they raise or lower their heads. Tighten the hose with an adjustable wrench. Deals, Electrical Acessories, Fish Cleaning Covers, Boat Shrink Wrap What is an achievement you never heard of? Seats, Fishing Boat Winches, Boat Motor Supports & If you have a Yamaha trim and tilt motor that needs bleeding, here is a helpful guide. This is usually due to one of the two ball bearing type check valves sticking within the oil pump (which is located under the electric motor). ACCOUNT, Find 0000011378 00000 n Smoke 0000010518 00000 n Covers, Boat Wiring & Professionals. Operate the power trim and tilt system to bleed any remaining air from the system. Then, after waiting a short time, the boater finds that the PTT unit is functioning properly once again. Deals, Electrical Remove the leftmost line from the gimbal housing with the adjustable wrench. You must log in or register to reply here. JavaScript is disabled. You can use the power trim system on your Mercury outboard to "balance" your motor's direction of thrust to provide both a safe and level ride and the best application of power for performance and efficiency. Hardware, Boat Cabin Galley, Barbeque POWER TILT TRIM Electric Motors 1976 1992. PFDs, Roof Racks, Carriers, Make sure that no more hydraulic oil has leaked from the lines you loosened, then re-tightened. Parts, Boat Tubing & He is also a certified marine technician and the author of a popular text on writing local history. I also show you what happens when air is in the system. Platforms, Slide ACCOUNT, Find Cushions, Lexington Tubes, Shop Engine in full tilt position. #2 you may have a "reverse lock valve" issue. Accessories, Pontoon Bimini Upon doing this i drained. Use an adjustable wrench to loosen the hydraulic lines to the pump/hydraulic motor. Boat, Boat Buyers Savers, Boat Trailer Guides & 0000005164 00000 n Biminis, RV & Trailer Maintenance, Fiberglass & Epoxy Seats, Pontoon Boat Seats & Drink Holders. GPS Chartplotter and Fish Finder Combo, Find At this point, you will need to hold the rod or wire in place and use a Phillips head screwdriver to turn the bleed screw counterclockwise until it is loose. Remove the fill cap for the power trim reservoir an ensure that the fluid level reaches the bottom of the fill hole. Accessories, Boat To drain the hose, push the trim cylinders Up switch, and allow the hose to drain. The air has to have a place to escape from the system--one function of the hydraulic reservoir--and a bit of hydraulic oil is lost to the pressures of the process. iZfvw{?BBtH9~}M/t67,\3#gxb I have tried running the rams up and down, it will go up great, but it will only go down a little and then stop, the pump makes a very low sluggish growl almost like its going to stop. Protection, Dock Storage & Wells, Toilet & Waste The cure is to loosen one of the large tilt/steering nuts 1/2 turn, then with a 24 and a large hammer force the swivel bracket sideways slightly. This is typically located near the engine. 0000004885 00000 n Breakers, Power Packs & Jump Make sure the trim is still in the full up position. Covers, Boat Shrink Wrap Replace the fill cap. Replace the cap on the reservoir and start the engine. At this point, you can remove the rod or wire and tighten the bleed screw. Login, Boats Upon doing this i drained all the hydro fluid. 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