How to Lower a Boat Lift Without Power
Quick answer
It depends on the drive, and every type has a known answer. A direct-drive winch motor lowers with a drill on the motor shaft (Boat Lift Boss: 7/16 or 1/2 in socket; Lake Lifter: 9/16 in deep well socket; Lift Tech: the supplied bit). A belt-driven lift lowers by turning the big pulley, not the gear. A manual air-chamber lift lowers by opening its valves with the blower off. A battery hydraulic lift has no manual drop: charge the battery. Turn the breaker off first, and expect not to raise the boat again until power returns.
On this page
- Find your drive type, then the method
- Direct-drive winch motors: a drill on the motor shaft
- Belt-driven lifts: turn the pulley, not the gear
- Manual hand-wheel lifts: lower, then set the brake
- Air-chamber lifts: the valves do the work
- Battery hydraulic lifts: charge the battery
- What most advice gets wrong
- Before the next outage
- Where this page stops applying
- Frequently asked questions
- Sources and further reading
You lower a boat lift without power by turning its drive with a drill or a lever, or, on air lifts, by opening the valves. Which applies depends on the drive, and the makers' manuals cover each type. A direct-drive winch motor takes a drill on its shaft. A belt-driven lift is turned at its big pulley. An air-chamber lift with manual valves lowers with the blower off. A battery hydraulic lift does not lower without electricity at all, by design.
Two rules hold for every type. Turn the breaker off before touching the drive, even when the power already looks dead. And lowering without power is a one-way trip: the boat usually cannot go back up until power returns, so know where it will spend the night before you start.
- Boat Lift Boss: drill, 1/4 in extension, 7/16 or 1/2 in socket on the bottom of the motor shaft; clockwise lowers
- Lake Lifter: 9/16 in deep well socket through the hole under the motor; standard drill, not an impact drill
- Lift Tech Marine: the supplied backup bit in a drill, rubber cap off the motor shaft
- By hand on a belt drive: about an hour for 5 ft, two people with handles in the pulleys
- Under power, for comparison: roughly 3 to 6 ft per minute
Safety: Switch off the lift and its breaker so the motor cannot start when power returns. Nobody in the boat, under it, or in the water near the lift while it comes down. Keep hands off cables and sheaves, and never try to stop a spinning wheel or pulley. Do not loosen hydraulic hoses or fittings on a loaded lift. If the outage is a storm, stay off the dock until it passes; see lightning and surge protection.
Find your drive type, then the method
Look at what sits between the power and the cable. A small sealed motor bolted onto the side of a winch, where a hand wheel would be, is a direct drive. A motor turning a large wheel through a belt is a belt drive. A spoked wheel and no motor is a manual winch. Air hoses running to a dock box with valve handles mean an air-chamber lift; a box with a battery, pump and hoses to cylinders is hydraulic. The drives are explained in boat lift drive systems.
| Drive type | Method | Tool | Source says |
|---|---|---|---|
| Direct drive (Boat Lift Boss) | Drill on bottom of motor shaft | 1/4 in extension, 7/16 or 1/2 in socket | "clockwise lowers boat" |
| Direct drive (Lake Lifter) | Drill through hole under motor | 9/16 in deep well socket, non-impact drill | "A powerful drill is necessary" |
| Direct drive (Lift Tech Marine) | Drill on motor shaft | Supplied backup bit | Remove rubber cap first |
| Belt drive | Belt off, turn the large pulley | 4 to 5 ft handle in the spokes, or wrench on center nut | BoatUS: pulley, never the gear wheel |
| Manual hand wheel (ShoreStation, ShoreMaster) | Turn the wheel down | None | Back up until the brake clicks |
| Air chamber, manual valves (HydroHoist, Firstmate) | Valves to launch or down | None | "LEAVE BLOWER SWITCH OFF" |
| Air chamber, push button | No procedure published | Dealer | Lowers with the DOWN button |
| Battery hydraulic (ShoreMaster, Pier Pleasure, ShoreStation FlexPower) | Charge the battery, lower normally | 10 A charger | Platform "will not drop" unpowered |
Direct-drive winch motors: a drill on the motor shaft
Bolt-on drives from Boat Lift Boss, Lake Lifter and Lift Tech Marine convert a hand-wheel winch to power, and all three publish a drill backup. The drill turns the motor shaft, which turns the winch gearing exactly as the motor would.
- Boat Lift Boss (user guide 3311ex0519): a 1/4 in extension and a 7/16 or 1/2 in socket on the bottom of the motor shaft. Counterclockwise lifts, clockwise lowers.
- Lake Lifter AC 120 V direct drive: a 9/16 in deep well socket through the hole under the motor. Use a standard drill in non-impact mode, never an impact drill. Lake Lifter says a powerful drill is necessary and that raising the lift by drill with the boat on it may be impossible.
- Lift Tech Marine: its installation guides say a tool may be inserted into a drill "to Raise or Lower Your Lift" after removing the rubber cap from the motor shaft; the operating sheet points to the backup bit supplied with the motor.
Why not put the hand wheel back on? When these motors go on, the wheel and the winch's own brake come off; Lift Tech's guides tell the installer to remove the brake lever or brake dog, "You Will Not Use it." Those guides also open with "Always Lower The Boat Lift Before Attempting Assembly," and Boat Lift Boss's removal steps begin by lowering the rack so there is no tension on the cable. Pulling the motor with the boat up means taking the drive apart under load. Use the shaft.
Stop at the float
Lower only until the boat floats free. Boat Lift Boss warns that running too long in the down direction winds the cable on backwards and lifts the boat, and Lift Tech describes a lift let down too far as backwound. If the cradle starts rising while you keep drilling, you have gone past the bottom; how to unwind it is in why a boat lift goes up when you press down. The drum must still hold its dead wraps at the low point, at least three on most lifts (see cable replacement).
Belt-driven lifts: turn the pulley, not the gear
Many lifts drive the winch through a belt from a small motor to a much larger pulley. In a 2025 BoatUS Magazine piece, Lenny Rudow describes lowering this type by removing the cover and the belt and spinning the pulley. By hand it is slow: hundreds of turns move the boat inches, and from 4 or 5 ft up it can take hours. A 4 or 5 ft boathook or mop handle through the spokes cuts that to minutes, and a wrench on the pulley's center nut, if it has one, also speeds it up. Two cautions from the same article:
- Identify the pulley. It is the wheel the belt drives. Turning the gear wheel by hand "can result in serious injury."
- Keep bow and stern level. On lifts with separate fore and aft motors, never let one end get more than a few inches ahead, even if that means alternating. Two people, one per pulley, is best.
Worked example: how long a hand-lowered lift takes
Rudow's boat went down about 5 ft in slightly under an hour, two people turning the fore and aft pulleys with scrub brush handles: 60 in in about 55 minutes, close to 1 in per minute.
Under power, a cable lift typically moves 3 to 6 ft per minute, or 36 to 72 in per minute, so the same 5 ft takes 60 / 72 = 0.8 to 60 / 36 = 1.7 minutes. Lowering by hand with a lever is about 35 to 70 times slower. Budget an hour for 5 ft and start in daylight; dropping 2 ft to float a boat on a high lake takes far less.
Manual hand-wheel lifts: lower, then set the brake
A hand-wheel lift needs no power, but an outage is often when someone unfamiliar is turning it. ShoreStation says the winch's clutch brake holds the platform at any position. ShoreMaster's cantilever instructions say to turn the wheel down one or two turns past the point where the boat floats, then back up slightly until the brake clicks. Winding further leaves slack that can jump the cable off the spool.
ShoreStation's hoist manual adds the rule that matters most: if the handle ever spins down on its own, do not try to stop it, because that can injure arms and hands. Let the platform spin into the water, which it says damages neither hoist nor boat, then call a dealer. That is a brake fault; see lift slipping or not holding.
Air-chamber lifts: the valves do the work
Air lifts raise the boat by blowing air into tanks and lower it by letting the air out. The blower needs power; venting does not. HydroHoist's owner's manual for manual control units says to lower by turning the valve handle to LIFT/LAUNCH, "LEAVE BLOWER SWITCH OFF," and return it to DRY DOCK once the boat floats. On UltraLift models with three to five tanks, the rapid launch handle goes up and the center tank is exhausted first. Firstmate's guide reads the same way: turn the handles to Down and air comes out of the back of the unit.
Two limits. HydroHoist's push-button models lower with a DOWN button and the manual gives no unpowered procedure, so ask the dealer before an outage. And Firstmate says a lift that will not lower, with no sound of air, has airlocked hoses, cleared by running the blower in the up position for 3 to 5 minutes, which needs power. More in floating boat lifts.
Battery hydraulic lifts: charge the battery
People ask how to release a hydraulic lift by hand. On battery hydraulic lifts the manuals answer the other way: the lift holds the boat without power by design. ShoreStation's FlexPower manual says the platform "will not drop and can continue to hold the boat in place with the power unit disconnected." Pier Pleasure's troubleshooting shows why: an electric coil must pull the valve over before the lift moves either way, down included.
Because the power is a battery, a house outage does not stop these lifts; a flat battery does. ShoreMaster's hydraulic manual specifies a 12 V group 27 deep-cycle battery and says a new one with 160 Ah reserve capacity gives about 20 full cycles. Booster-charge with a 10 A charger, unhooking the pump before using an external charger, and "Do not disconnect the hoses with the boat on the lift."
Check the small things first. Pier Pleasure's optional shut-off switch has a green knob that must be screwed down clockwise for the lift to run. If its lock pin is in and the lift has settled onto it, the lift must be raised slightly to pull the pin, which takes a working pump. See solar and battery problems and hydraulic lift problems.
What most advice gets wrong
- "Crack a hydraulic line and let it down." It drops the boat at whatever rate the fluid escapes, releases hydraulic fluid at the water's edge, and contradicts ShoreMaster's rule against disconnecting hoses with the boat on the lift.
- "Release the brake and let it coast." On a hand-wheel winch the brake is what stops a free fall. The only free spin a maker accepts is ShoreStation's: one that has already started, with your hands clear.
- "Any drill will do." Lake Lifter says a powerful drill is necessary, in non-impact mode. Charge the drill battery, or use a corded drill, before you start rather than halfway down.
- "Just run it off a generator." BoatUS suggests a portable generator for lifts that plug into a 110 V dock outlet, and Boat Lift Boss and Lake Lifter both require GFCI protection on their 120 V motors, so plug in through it. If the outage came from water in a box or conduit, as Rudow's did, that fault is still there; see GFCI tripping.
Before the next outage
- Find the drill tool and tape it inside the control box lid, with the socket size written on the box.
- On belt drives, cut a handle that fits the pulley spokes and keep it at the lift.
- On battery lifts, charge before storm season.
- Decide where the boat goes once it is down. BoatUS's advice: without a backup plan, the boat may be safer left up until power returns.
Before a storm, lower or secure the boat while you still have power. Hi-Tide's hurricane FAQ says to turn power off, including the breaker in the house, and to remove motors and controls if possible; once they are off, nothing is left to lower the lift with. See hurricane preparation.
Where this page stops applying
Elevator, davit and enclosed gear-drive lifts vary by maker and are not covered by the manuals above. BoatUS's rule fits them: if the maker is silent about lowering without electricity, find out why or do not do it. If the house has power but the lift is dead, the fault is the lift's circuit, motor or controls; start with motor troubleshooting or remote control problems.
Frequently asked questions
Can you lower a boat lift with a drill?
Yes, on direct-drive winch motors whose maker provides for it. Boat Lift Boss uses a 1/4 in extension and a 7/16 or 1/2 in socket on the bottom of the motor shaft, clockwise to lower. Lake Lifter uses a 9/16 in deep well socket and a standard drill in non-impact mode. Lift Tech Marine supplies a backup bit. Turn the breaker off first.
How long does it take to lower a boat lift by hand?
On a belt-driven lift with handles through the pulley spokes, about an hour for 5 ft with two people, from BoatUS's own account: roughly 1 in per minute, against 3 to 6 ft per minute under power. Turning the pulley with bare hands can take hours.
Will a boat lift lower itself if the power goes out?
It should not. Winch lifts are held by a brake or self-locking gearing, and ShoreStation says its FlexPower hydraulic platform will not drop with the power unit disconnected. A lift that creeps down in an outage had a fault before the outage.
Can I raise the boat again without power?
Usually not. Lake Lifter warns that raising by drill with the boat on may be impossible, and BoatUS notes that lowering is far easier than lifting. Lower only if the boat has somewhere to go; otherwise it may be safer left up until power returns.
Sources and further reading
- BoatUS Magazine, Lenny Rudow, What To Do When Your Boat Lift Quits, May 2025 (https://boatus.geico.com/expert-advice/expert-advice-archive/2025/may/when-your-boat-lift-quits)
- Extreme Max, Boat Lift Boss User Guide, 3311ex0519 (https://images.homedepot-static.com/catalog/pdfImages/94/94be6af0-1237-4b8f-9f54-9cb5c4a53501.pdf)
- Lake Lifter, AC 120v Direct Drive Boat Lift Motor instructions (https://www.boatliftanddock.com/MediaStorage/Product/Documents/Document/5698_20240405143737981.pdf)
- Lift Tech Marine, installation guides for Hewitt, ShoreStation and Dutton-Lainson 3500 to 5500 winches, and AC motor operating sheet (https://www.boatliftanddock.com/MediaStorage/Product/Documents/Document/5202_20220429134158417.pdf; https://www.boatliftanddock.com/MediaStorage/Product/Documents/Document/2458_20201207092724194.pdf)
- ShoreMaster, 1200 PWC Cantilever Lift Instructions, part 1017507 (https://static.shoremaster.com/instructions/1017510_SMR.pdf)
- ShoreStation, SS1053 PWC Hoist Dock Mount, manual 0004405 Rev B, 2013
- ShoreMaster, Hydraulic Box Instructions, 4000 lb to 12500 lb capacity (https://static.shoremaster.com/instructions/1024719_SMR.pdf)
- ShoreStation, FlexPower Hydraulic Boat Lift Owner's Manual, 0004549 Rev 3
- Pier Pleasure, Hydraulic Boat Lift Owner's Manual, 2020 to present (https://www.pierpleasure.com/wp-content/uploads/2026/03/owners-manual-hydraulic-lifts-2020-present.pdf)
- HydroHoist Marine Group, Owner's Manual, All Models
- Firstmate, Inc., Manual Installation User Guide, May 7, 2014
- Hi-Tide Boat Lifts, FAQs, hurricane preparation (https://hi-tide.com/faqs/)