Genie S105 Lift Cylinder Repair in Ames, Iowa
When a Genie S105 boom lift starts drooping on its own or won’t hold a load at full reach, the lift cylinder is almost always the culprit. We’ve done a lot of Genie S105 lift cylinder repair work on our bench here in Ames, and it usually comes down to worn internal seals letting fluid bypass the piston under load. Bring the cylinder in, or let us pull it off the boom on-site, and we’ll tear it down and tell you straight whether a rebuild will hold or whether the bore is too far gone.
How We Handle Genie S105 Lift Cylinder Repair
Every Genie S105 lift cylinder repair job starts the same way on our end. We remove the cylinder from the boom, drain it, and inspect the bore, rod, and piston before we quote anything. If the bore has light scoring we hone it out. If the scoring is deep, honing won’t fix it and we’ll talk to you about a new cylinder instead of throwing good seals at a bad bore.
- Remove the cylinder from the boom
- Disassemble and inspect the bore, rod, and piston for scoring or pitting
- Replace the head seal, piston seal, U-seals, and wiper seal (common part numbers we stock include HS686-342, P-AA1062, and MCU-1500-D)
- Hone the bore if the scoring is light; recommend a new cylinder if it’s not
- Reinstall the cylinder on the boom and bleed the system to work the air out of the lines
One thing we tell every customer up front: it’s really common for the other lift cylinder to blow out not long after we rebuild the first one, since both cylinders have seen the exact same years of wear and pressure cycles. If a rebuild doesn’t hold because the bore scored worse than it looked, you’re into a new cylinder, which adds to the bill. For a broader breakdown of what drives cost up or down, our hydraulic cylinder rebuild cost guide walks through it in more detail.
Common Signs You Need Genie S105 Lift Cylinder Repair
Most customers don’t call us because they woke up thinking about hydraulics — they call because the machine is doing something it shouldn’t. Here’s what usually points to Genie S105 lift cylinder repair rather than a simpler fix:
Boom drift is the big one — the lift creeps down on its own when it’s parked at height, sometimes just an inch over a shift, sometimes fast enough to worry the operator. A weeping or wet rod near the seal is another giveaway; that’s fluid bypassing a worn seal, not a hose leak. Jerky or spongy lowering, especially right before the cylinder fully blows out, is a sign the piston seal has already started letting go internally. We also see plenty of lock cylinder and lock cable issues on the S105 that get mistaken for a main lift cylinder problem, so we check both before we quote work. If you’re outside Ames, we handle the same kind of failures for shops that do hydraulic cylinder repair in Winterset, and the symptoms on those machines look identical to what we see on S105 lifts here.
How Much Does Genie S105 Lift Cylinder Repair Cost
A straightforward Genie S105 lift cylinder repair — pull the cylinder, rebuild it with new seals, reinstall and bleed — typically runs in the range most shops quote for a mid-size boom lift cylinder rebuild, and we’ll give you a firm number once we’ve seen the bore. If the bore scored too badly to hone and you need a new cylinder instead of a rebuild, plan on adding roughly $300 to $800 on top of the rebuild labor, depending on which cylinder and how hard the part is to source. If you also need the lock release cylinder replaced, those smaller cylinders run around $145 plus labor. We charge mileage for shop visits within about 40 miles of our Ames location when a technician comes out instead of the cylinder coming to us. If you want to see how S105 costs compare to other rebuilds we do, our Iowa hydraulic cylinder rebuild page has more real numbers from jobs we’ve completed.
We don’t upsell rebuilds we don’t think will hold, and we don’t quietly swap in a new cylinder without telling you why the rebuild didn’t work out. That’s the whole point of doing Genie S105 lift cylinder repair the way we do it — you know what you’re paying for before we touch a wrench.
If your S105 is dropping under load or the rod is weeping fluid, don’t wait for it to get worse. Call us at 515-292-2599 and we’ll walk you through what a Genie S105 lift cylinder repair looks like for your machine, what it’ll cost, and how fast we can get it back in the field.
Frequently Asked Questions
How much does it cost to rebuild a Genie S105 lift cylinder?
A standard rebuild with new seals runs less than a new cylinder, but the exact number depends on bore condition. If the bore is scored past honing, expect an added $300 to $800 for a replacement cylinder on top of labor.
How do I know if my Genie S105 lift cylinder is bad?
The most common signs are boom drift when the lift is parked at height, a wet or weeping rod seal, and jerky or spongy movement when lowering. Any of those point to internal seal wear that a rebuild usually fixes.
Can you rebuild my Genie S105 cylinder or do I need a new one?
We won’t know for sure until we tear it down and check the bore for scoring. Light scoring we can hone out during the rebuild. Deep scoring means the seals won’t hold no matter how good the rebuild is, and you’ll need a new cylinder.
Do you come to our yard for Genie S105 lift cylinder repair?
Yes, we can pull the cylinder on-site for jobs within about 40 miles of our Ames shop, with a mileage charge for the trip. Farther out, we recommend bringing the cylinder to us or checking if we cover your area directly.
How long does Genie S105 lift cylinder repair take?
A straightforward rebuild usually turns around in a few days once we have the cylinder on the bench, assuming the seal kit is in stock. If the bore is scored and a new cylinder has to be sourced, it can take longer depending on parts availability.
Written by Josiah Ragsdale, Ames Hydraulics