Two Post Lift Inspection Checklist

A good two post lift inspection checklist is not a piece of paperwork you file to make an insurance adjuster happy — it is the difference between catching a frayed cable on a Tuesday morning and catching it when a customer’s truck is eight feet in the air. We are Auto Lift Services, based in Ames, Iowa, and our crews install, service, and stock parts for every major lift brand across the state and the surrounding region. Over the years we have crawled under more two post lifts than we can count, and the failures we find almost always announced themselves weeks earlier in a way a two-minute walkaround would have caught. This is the checklist we actually use, broken into what you check daily, monthly, and once a year.

Start With the Daily Walkaround — It Takes Ninety Seconds

The daily portion of any two post lift inspection checklist should be short enough that a technician actually does it before the first car of the day. We tell shops to keep it to five things. Walk the floor around both columns and look for fresh hydraulic fluid — a dime-sized spot under the power unit column is normal weep from a fitting, a streak running toward the drain is not. Look at the arm restraint gears or pins on all four arms and confirm they engage and hold when you swing an arm. Glance at the overhead crossbar shutoff bar or the low-ceiling limit switch and make sure nothing has been zip-tied out of the way, which we see more often than we would like.

Then run the lift empty. Raise it about three feet, listen for the locks clicking through the ladder in sequence, and lower it back down. Uneven clicking means one carriage is running ahead of the other, which points at cable stretch or a lock that is dragging. Finally, look at the floor anchors. If you can see a shiny ring of concrete dust around an anchor bolt, that column has been moving, and that is a stop-work item until we look at it. None of this requires tools. It requires somebody caring enough to look, and a laminated card on the wall next to the lift controls so nobody has to remember the list.

Monthly: Cables, Locks, and the Things That Wear Quietly

The monthly pass is where you find the wear items. Start with the equalizer cables, because on an overhead two post lift they are doing the job everybody assumes hydraulics are doing — keeping the two carriages level. Run a rag along the length of each cable while the lift is fully lowered and slack. If the rag snags, you have a broken wire strand, and one broken strand means the cable is on a countdown. Check the sheaves at the top of each column for grooving and make sure they still spin freely. Our two post lift cable inspection checklist walks through the measurement and replacement thresholds in more depth, because cables are the single most common part we ship.

Next, the locks. Pull the lock release cable or handle and watch every lock dog retract and then snap back under spring pressure. A lock that returns slowly is packed with grease, brake dust, and Iowa road salt, and it will eventually fail to catch. Clean and lubricate the lock pivot with a light oil rather than heavy grease. Then check hydraulic fluid level with the carriages fully lowered — checking it raised gives a false low reading and we have watched shops overfill and blow a seal because of it. Inspect the hoses for abrasion where they route through the overhead or under the floor plate, torque-check the anchor bolts to the manufacturer’s spec, and wipe down and inspect the lift pads and adapters for cracked rubber or bent screw pads.

Annual: The Certified Inspection and What It Actually Covers

Once a year the lift needs a real inspection by somebody trained to do it, and that is a different animal than the shop-level walkaround. ANSI/ALI ALOH guidance calls for annual inspection by a qualified lift inspector, and most commercial insurance carriers and manufacturer warranties now expect documentation of it. When we do an annual, we go past the two post lift inspection checklist a shop can run itself: we measure cable stretch against original spec, inspect the inside of the columns for carriage slider wear and column plumb, pressure-test the hydraulic system, verify the cylinder is not bypassing internally, and check every weld and fastener on the arms and swing pins.

We also verify the anchors with a torque wrench and, on older installations, check the concrete thickness and condition around the base plates — a 1990s slab poured for passenger cars is not always what a 12,000 lb lift needs. Then we tag the lift, note anything that needs to be replaced, and leave the shop with a written record. If you want a preview of what the visit looks like, our two post lift annual inspection checklist lays out the full sequence. We schedule these across central Iowa year-round and will usually batch multiple lifts in one visit to keep the labor reasonable.

The Used-Lift Version of the Two Post Lift Inspection Checklist

Buying a used lift changes the inspection completely, because you are not verifying that a known-good machine is still good — you are figuring out what you are inheriting. We get called out to look at auction and Facebook Marketplace lifts constantly, and the pattern is consistent: the columns and arms are usually fine, and the money is in the parts you cannot see. Ask for the model and serial number before you drive anywhere. If the manufacturer no longer supports that model and no aftermarket cable or cylinder exists for it, the lift is scrap metal with a nice paint job no matter how clean it looks.

On site, look for a missing overhead crossbar, mismatched arms, a power unit that has been swapped for a generic replacement, and cables that have been shortened or spliced. Any of those means the previous owner was patching problems rather than fixing them. Check the carriage slide blocks — worn blocks let the carriage rock in the column, and replacing them means pulling the carriage. Our used two post lift inspection checklist goes deeper on evaluating a private-sale lift, but the short version is this: budget for cables, a lock kit, arm restraints, and fluid on any used lift, and treat a clean bill of health as the exception.

Documentation: The Part Shops Skip and Regret

A two post lift inspection checklist only protects you if there is a record that it happened. We have sat in on more than one insurance conversation after an incident, and the first question is always the same — show me your inspection history. A shop with a clipboard on the column and twelve months of initialed monthly checks is in a completely different position than a shop that says the lift got looked at regularly but has nothing on paper. It costs nothing to build that record and it takes about a minute a month.

Keep it simple. One sheet per lift, dated rows, initials, and a column for notes. Log part replacements with the date and part number so that when a cable comes due again in five years you know exactly what went on the machine. Record the annual inspection report and any repair invoices with it. If you run multiple bays, number your lifts physically on the column so nobody has to guess which one the note refers to. When we come in for service and a shop hands us a clean log, we can diagnose faster and quote more accurately, because we are not reverse-engineering the lift’s history from wear patterns.

The Failures We Find Most Often in Iowa Shops

If we ranked what our techs write up on service calls, cable wear is number one by a wide margin. Second is arm restraint failure — the gear teeth wear round, the arm no longer locks, and the vehicle can shift during a suspension job. Third is lock mechanisms gummed up from winter road salt and brake dust, which is a specifically Midwestern problem. Fourth is loose or corroded anchor bolts, usually in shops where the floor gets wet and the anchor was installed near a slab edge or a control joint.

Fifth, and the one that surprises people, is neglected hydraulic fluid. Water gets into the reservoir over the years, the fluid turns milky, and it starts eating the cylinder seals and pump internals from the inside. Changing fluid on a schedule is cheap; a cylinder is not. A structured two post lift safety inspection checklist catches all five of these long before they become a stop-work situation. We would rather sell a shop a cable set on a Tuesday than get an emergency call after something came down.

How We Help — Parts, Service, and Getting Your Checklist Started

We stock cables, lock kits, arm restraint assemblies, cylinders, power units, pads, and adapters for Rotary, Challenger, BendPak, Atlas, and most of the older brands still working in shops around the region. If you send us a photo of the data plate and a shot of the part in question, we can usually identify what you need same day without you guessing at a part number. That is a big part of why we built the parts lookup on our store — most lift owners do not know their model number, and they should not have to.

On the service side, we do installations, relocations, repairs, and annual certified inspections. If you have never run a two post lift inspection checklist on your equipment and you are not sure where to start, call us at 800-674-9302 and we will walk through your setup on the phone. We will tell you honestly whether the lift needs an inspection visit or whether your own tech can handle the monthly items with a printed sheet and twenty minutes of coaching. Either way, get something written down and get it started this month — a two post lift inspection checklist that exists imperfectly beats a perfect one you never wrote.