Setting Up Your own 2 Post Lift Wiring Diagram Properly
If you're staring in a 2 post lift wiring diagram and wondering the reason why there are therefore many colored cables for what appears like an easy motor, you aren't alone. Most associated with us just want to obtain the lift bolted down, plugged in, and begin working on our projects, however the electrical side of things can be a bit of the head-scratcher. It's a single thing to turn a wrench, and it's an entire other thing to deal with 220-volt power and magnet starters.
Obtaining the wiring right is about more than just making the motor spin. It's regarding safety, longevity of the equipment, and making sure you don't accidentally fry a handle board or trip your breaker each time you try in order to lift a vehicle. Let's tenderize what you're actually searching at when you open that little electrical box on the side of the power unit.
Deciphering the Schematic Symbols
When you first pull up a 2 post lift wiring diagram, it usually looks like a bunch of sticks and groups. For your uninitiated, these represent specific components which make the entire system "talk" in order to each other. You've got your power source (usually tagged L1 and L2 to get a standard 220V setup), the electric motor itself, and the contactor.
The contactor is usually really the heart of the operation. Think that of it because a heavy-duty relay. Since the little push-button in your lift isn't beefy enough to handle the massive current a 2-horsepower motor draws, it tells the contactor to close the big internal entrance. This allows the particular high-voltage juice in order to flow directly to the motor. In case your diagram shows a "coil, " that's the part of the contactor that responds to your switch press. If a person hear a loud click when you hit the button but nothing to happens, you've likely obtained power to the coil, but nothing is passing by means of those main entrance.
Dealing with Power Requirements
Most residential and light commercial shops run on single-phase 220V power. In the event that you're lucky good enough to have three-phase power, your 2 post lift wiring diagram will probably look the little different since you'll have an extra hot leg in order to deal with. For the majority of us, we're looking in two hot cables and a ground.
One mistake I realize guys create on a regular basis is trying to run a lift on an outlet that's too small. You really want a dedicated 30-amp breaker for most 7, 000 in order to 10, 000-pound comes. If you try to share that outlet with your compressor, you're going to be walking back again to the -panel every time the compressor kicks upon while you're lifting a car. Whenever you're looking from the diagram, pay out close attention to the wire measure requirements. Most manufacturers recommend 10-gauge cable for a standard run. Using leaner wire (like twelve or 14 gauge) can cause the voltage drop, which makes the electric motor run hot and eventually kills it.
The Role of the Limit Switch
In the event that your lift is an overhead design (where the wires and hoses run across the top beam), your 2 post lift wiring diagram will definitely include the limit switch. This is a tiny but vital protection feature. It's generally a long padded club or a physical change on top of the lift.
If you're lifting a tall van and the roof strikes that bar, this cuts the circuit to the motor. Without this, the particular lift would simply keep pushing till it either crushed the roof of the car or even snapped a cable—neither of which is a great day at the shop. On the particular wiring diagram, this particular switch is normally born "normally closed" (NC) in series with the control switch. This means the power flows through the limit switch prior to this gets to your own button. If the particular switch is activated, the circuit opens, and your button becomes useless till the obstruction is cleared.
Connecting the Push Button and Solenoid
On most basic lifts, the button just triggers the motor, so you use a manual lever to reduced the car. Nevertheless, some higher-end or even "clear floor" models have electronic locks. If your 2 post lift wiring diagram shows a "solenoid" or "lock release, " you've got a little bit more work to complete.
These types of solenoids pull the particular safety locks back automatically when a person hit the "down" button. Wiring these can be tricky because they usually run on a different voltage, occasionally 24V DC, which usually requires a transformer inside the handle box. If you're DIYing this, make sure you don't accidentally send 220V straight to a 24V solenoid. That's a costly way in order to see some leads to and smell burnt off plastic.
Grounding Is Not Optionally available
I understand it's tempting to just connect the particular two hot prospects and call it each day, especially in the event that you're doing work in a good older garage. But grounding your lift is absolutely important. You're standing upon a concrete ground, holding a metal frame, while 230 volts of electricity are pulsing through a motor ideal next to a person.
Your 2 post lift wiring diagram will certainly show an apparent path to floor (usually marked having a symbol that seems like an upside-down To with extra lines). Make sure your own ground wire will be clean, tight, plus goes all the way returning to the main service -panel. If there's actually a short within the motor casing, that ground cable is the only thing keeping a person from becoming section of the circuit.
Fine-tuning Common Wiring Problems
So, you've followed the 2 post lift wiring diagram, you flip the breaker, plus nothing. Or probably it just hums. Don't panic; it's usually something basic.
- The particular Motor Hums: If the motor hums but doesn't spin, you might have a bad start capacitor or you're just getting power on one leg. Look at your connections at the breaker and the particular contactor.
- The Lift Just Goes Up: This will be normal for most basic lifts! Keep in mind, the motor just pumps hydraulic liquid straight into the cylinders to raise this. Gravity and a manual release valve are usually what take it down.
- The Breaker Trips Instantly: You've likely got the dead short. Check out the wiring where it enters the motor housing. It's easy for a wire to get pinched or regarding a stray strand of copper to touch the metal housing.
- Contactor Chatters: If the contactor the machine-gun clicking sound, it's generally because it's not getting enough ac electricity to keep the magnets closed. Check regarding loose connections or a wire that's way too long for its gauge.
An email on Professional Help
I'm all intended for doing things yourself—that's why we own lifts, right? —but electricity is one particular of these things that doesn't give you several second chances. In case you look at a 2 post lift wiring diagram and it also looks such as ancient Greek for you, there is simply no shame in contacting an electrician in order to do the last hookup. You may do the heavy lifting, bolt the particular posts down, and run the avenue, but having the pro wire the box ensures that everything is up in order to code and, even more importantly, safe.
If you do decide to tackle it yourself, just take it slow. Utilize the right tools, don't leave any revealed copper, and always— always —double-check that the particular breaker is away before you touch the wire. Once it's all hooked up and you hear that motor roar to life intended for the first period, you'll be happy you took the time to perform it right. There's nothing that can compare with the convenience of having your own lift, plus knowing the electrical is solid gives you very much even more peace of mind when you're underneath a 4, 000-pound vehicle.