Hydraulic Pump Repair Story City, IA
Story City is a straight shot down Highway 69 from our shop, and we see a lot of trucks, lifts, and ag equipment come from that direction with a pump that’s either whining, leaking, or just not lifting like it used to. Hydraulic pump repair Story City customers bring us usually falls into one of three buckets: gear pumps on hydraulic flatbed trucks that have worn out their gears, lift pumps on service and dump equipment that need a full pump-and-valve swap, or piston pumps on ag and material handling gear that are down on pressure. We handle all three at the bench, and we can usually tell you within an hour of tear-down whether it’s rebuildable or if a new pump makes more sense.
We’re a family-run shop at 210 Freel Dr in Ames, and hydraulic pump repair Story City fleets and farms depend on is basically our bread and butter. We’ve replaced pumps on hydraulic flatbed trucks where the labor alone ran a half-day because the pump sits buried behind the PTO, and we’ve done lift repairs where the whole job was a new pump, new valves, fresh hydraulic fluid, and delivery back out to the customer’s yard. If your equipment can’t make the drive to Ames, we’ll bring the fix to you.
How we do hydraulic pump repair Story City equipment owners actually need
The first thing we do is figure out whether the pump is the actual problem or just the symptom. A lot of “the pump is bad” calls turn out to be a cracked suction line or a clogged filter starving the pump of fluid — that’s covered in more detail on our pump not building pressure page, and it’s worth a read before you assume the whole pump needs to come out. Once we confirm it’s the pump itself, our process for hydraulic pump repair Story City jobs looks like this:
- Pull the pump and inspect the gears, vanes, or pistons for scoring, wear, and shaft play
- Check the relief valve setting — we regularly find adjustable relief valves rated up to 7,000 PSI that have drifted way out of spec
- Decide between a medium rebuild (new seals, gears, bearings) or a full replacement gear pump, like the 15 GPM units we install on flatbed and reel trucks
- Rebuild or replace, then reinstall with new hydraulic fittings — 1-1/4-inch hose barb and 3/4-inch JIC fittings with O-ring seals are common on these jobs
- Flush the system, refill with the right hydraulic fluid, and run it under load before it leaves the shop
If your Story City equipment is a forklift, order picker, or other material handling unit, we’ve got a dedicated crew for that too — see our material handling hydraulic repair page for what that looks like start to finish.
Common pump failures we see on Story City equipment
Not every pump fails the same way, and the symptoms usually point us toward a cause before we even pull a wrench. Here’s what we run into most on hydraulic pump repair Story City calls:
Whining or growling under load
Usually cavitation — air getting into the pump because of a low fluid level, a bad suction hose, or a clogged strainer. Sometimes the pump itself is fine and just needs to breathe.
Slow lift or weak cylinder extension
This points to internal wear letting fluid bypass instead of building pressure. On gear pumps we’ll find scored gear faces; on piston pumps it’s usually worn shoes or a cracked valve plate.
No pressure at all
Could be a snapped drive coupling, a sheared key on the pump shaft, or a relief valve stuck wide open. We’ve swapped plenty of PTO hubs and stub shafts on flatbed trucks where the pump itself was fine but the drive coupling let go.
Fluid leaking from the pump housing
Worn shaft seals, usually from age or from running low on fluid for too long. This is a straightforward seal job if we catch it before the bearings go too.
If any of this sounds like your cylinder instead of your pump, we cover that separately in our cylinder rebuild cost guide — worth checking since pump and cylinder symptoms can look similar from the driver’s seat.
How much does hydraulic pump repair Story City jobs cost
Prices depend heavily on whether we’re rebuilding your existing pump or replacing it, and whether it’s a straightforward bolt-in or buried behind other components. Rough ranges we see:
- Pump rebuild (seals, gears, bearings): $400–$900 in parts and labor, depending on pump size and access
- Gear pump replacement (like a 15 GPM unit with new fittings): $900–$1,800 installed
- Lift or truck pump replacement with new valves, hose, and fluid: $1,500–$3,500, largely driven by labor hours and whether we need to deliver or trailer the unit
- Mileage for on-site service or delivery within 100 miles of Ames: typically a flat trip charge added to the labor
We’ll always give you a number before we start cutting into anything, and if a rebuild doesn’t make financial sense compared to a new pump, we’ll tell you straight instead of running up a bill on a unit that’s not worth saving. That’s true whether you’re calling about a lift pump, a Blackmer-style transfer pump — see our Blackmer pump troubleshooting guide if that’s what you’re running — or a gear pump on a flatbed truck.
If you’re dealing with a pump that’s slow, loud, leaking, or just dead, don’t guess at it. Give us a call at 515-292-2599 and describe what it’s doing — we can usually narrow down the likely cause over the phone and get you scheduled for hydraulic pump repair Story City equipment owners have trusted us with for years. We’ll fix it right the first time, whether that means a rebuild at the bench or a full pump swap out at your location.
Frequently Asked Questions
How fast can you get to Story City for a hydraulic pump problem?
Most of the time we can get someone out within a day or two, and if your equipment can be trailered to our Ames shop, we can often turn a pump around same-day or next-day depending on parts availability.
Can you rebuild my hydraulic pump instead of replacing it?
Often yes. If the housing and shaft are in good shape, a medium rebuild with new gears, seals, and bearings can save you money over a full replacement pump.
What’s the difference between a bad pump and a bad valve?
A bad valve usually shows up as one function failing while everything else works fine, while a bad pump usually means everything on the system is weak or slow at once. We test both before quoting a repair.
Do you work on hydraulic pumps for flatbed trucks?
Yes, we regularly replace and rebuild pumps on hydraulic flatbed trucks, including the drive coupling and PTO components that often fail alongside the pump itself.
What hydraulic fluid should I use after a pump repair?
We’ll match the fluid to your system’s original spec, often ATF or a standard hydraulic oil, and we top off with fresh fluid every time we install or rebuild a pump.
Written by Josiah Ragsdale, Ames Hydraulics