Genie Z-60/34 Boom Cylinder Rebuild in Ames, IA
If your Genie Z-60/34 boom is drifting down on its own, leaking oil onto the platform arm, or won’t hold pressure at full extension, you’re probably looking at a worn boom cylinder. We do a Genie Z-60/34 boom cylinder rebuild right here at our shop on Freel Dr, and we’ve pulled enough of these off Z-60/34 units to know exactly where they fail and what it costs to fix them right.
How We Do a Genie Z-60/34 Boom Cylinder Rebuild
A proper Genie Z-60/34 boom cylinder rebuild isn’t just swapping a seal kit and hoping for the best. Here’s the process we actually follow on the bench:
- Remove the cylinder from the boom assembly, tag hoses and fittings so reassembly goes back exactly right
- Disassemble the cylinder and inspect the bore for scoring — this is really common on machines that have been run low on fluid or worked hard in dusty conditions
- Hone or replace the barrel if scoring is bad enough that new seals won’t seat properly
- Install new head seal, piston seal, U-seals, and wiper seal (we stock common sizes like 3" head seals and 1-1/2" wiper seals for this exact cylinder family)
- Reassemble, reinstall on the boom, and bleed the system to get all the trapped air out
- Cycle the boom under load a few times and check for drift or seepage before it leaves our shop
We also handle the mileage side of things — if your Z-60/34 is within about 40 miles of Ames, we can come do the lift-out on site instead of you trailering the whole machine in.
Common Failure Signs Before a Rebuild
Most customers who need a Genie Z-60/34 boom cylinder rebuild notice one or more of these before they call us:
- Boom slowly settles or drifts down when parked, especially overnight
- Visible oil streaking down the cylinder barrel or pooling near the base
- Jerky or hesitant boom extension, especially near full reach
- Loss of lift power under load that wasn’t there a few months ago
- Scoring inside the barrel from running low on hydraulic fluid or dirt getting past a worn wiper seal
Scoring is the big one we see over and over. Once the bore gets grooved, a fresh seal kit alone won’t hold pressure — the barrel has to be honed or, in bad cases, replaced. We check for this every single time before we quote a Genie Z-60/34 boom cylinder rebuild, because guessing wrong means you’re back on our lift in a month.
One thing we tell every customer up front: after we rebuild one boom cylinder, it’s genuinely common for the other cylinder on the same boom to blow out shortly after, since they’ve usually seen the same hours and the same wear. We flag this during inspection so it’s not a surprise.
How Much Does a Genie Z-60/34 Boom Cylinder Rebuild Cost
Pricing depends on how bad the bore scoring is and whether the rebuild holds or if the barrel needs to go. Rough ranges we see on this specific job:
- Standard rebuild with seal kit replacement (light to moderate scoring): typically in the range covered on our hydraulic cylinder rebuild cost guide
- If the rebuild doesn’t hold and a new cylinder is required instead: add roughly $300 to $800 depending on which boom cylinder and cylinder condition
- Shop lift-out labor and mileage (within 40 miles, no trailer): flat mileage charge plus technician time
- Additional cost if the second boom cylinder needs attention shortly after — common enough that we budget for it in our quote conversation
We’ll always inspect the bore before we commit to a price so you’re not getting a lowball quote that turns into a change order halfway through the job. If you’re comparing this against a full replacement cylinder, we can walk you through both numbers before we start turning wrenches.
Why Come to Ames Hydraulics for This
We’re a family-run shop, not a franchise, and a Genie Z-60/34 boom cylinder rebuild is exactly the kind of job we do week in and week out — alongside excavator cylinder work like our excavator cylinder rebuild jobs in Boone and general cylinder repair for shops around Winterset. We keep common seal sizes on the shelf so we’re not waiting on a supplier to start your Genie Z-60/34 boom cylinder rebuild. If you’re outside Ames proper, check our coverage on the Iowa cylinder rebuild service area page — we travel for these more often than people expect.
If your boom lift is drifting, leaking, or just not holding like it used to, don’t wait until the cylinder blows out completely on a jobsite. Call us at 515-292-2599 and we’ll get you scheduled for an inspection and a straight answer on what a Genie Z-60/34 boom cylinder rebuild will run for your machine.
Frequently Asked Questions
How long does a Genie Z-60/34 boom cylinder rebuild take?
Most rebuilds take one to two days once the cylinder is off the machine, depending on bore condition and whether we need to hone the barrel. If parts are on our shelf, we can often turn it around faster.
Can you rebuild the cylinder without removing the whole boom lift?
Usually yes — we remove just the boom cylinder itself rather than tearing down the full boom assembly, which keeps labor time and cost down.
What causes the boom to drift down on a Genie Z-60/34?
Worn piston seals or U-seals letting fluid bypass internally are the usual culprit, often made worse by bore scoring from dirt or low fluid levels over time.
Is it cheaper to rebuild or replace the boom cylinder?
A rebuild is almost always cheaper if the bore isn’t badly scored. If scoring is severe, replacement may end up costing less than repeated rebuild attempts — we’ll tell you honestly which way to go after inspection.
Do you travel to do this rebuild on site?
Yes, within about 40 miles of our Ames shop we can come do the lift-out and rebuild on location without trailering the machine in. Call 515-292-2599 to check if you’re in range.
Written by Josiah Ragsdale, Ames Hydraulics