Dump Hoist Rebuild and Replacement in Iowa | Ames Hydraulics

Dump Hoist Rebuild And Replacement In Iowa

The dump hoist is what makes a dump truck or dump trailer work. When it leaks, sticks, or won’t lift, the truck is out of service — and that costs money every hour. Dump hoist rebuild is one of the more common heavy hydraulic jobs we do in our Ames, Iowa shop. We rebuild dump hoists from single-stage direct-push cylinders on light-duty dump trailers, scissor hoists on medium-duty trucks, and telescopic multi-stage hoists on heavy dump trucks and semi-dump trailers.

What Fails On A Dump Hoist

The failure list is short but expensive. The cylinder rod seals leak — either the outer wiper seal that keeps dirt out or the inner pressure seal that holds fluid. The cylinder rod itself gets pitted from moisture and salt if the truck runs winter roads, and pitting past the wiper eats seals fast. The hoist pump loses pressure from internal wear or contamination. The hoses fail from flex fatigue where they run between the truck cab and the dump body. The control valve can stick, leak, or fail completely. Any one of these will drop a dump truck out of service. Dump hoist rebuild addresses all of them.

Telescopic Hoist Rebuild

Telescopic hoists are the most common on heavy dump trucks and semi-dump trailers. Multiple stages nested inside each other extend as the cylinder pushes the dump body up. Any stage’s seal can leak, and any stage’s rod can pit or damage. Dump hoist rebuild on a telescopic means pulling the cylinder, disassembling to the stages, inspecting each stage for wear and damage, replacing seals and re-assembling with new fluid. Pressure-tested on the bench before it goes back on the truck.

Scissor Hoist Rebuild

Scissor hoists use a mechanical linkage driven by a single hydraulic cylinder to raise the dump body. Common on medium-duty dump trucks. Dump hoist rebuild on a scissor system usually means cylinder rebuild plus inspection and lubrication of the scissor linkage pivots. Bushings and pins in the linkage wear over years and sometimes need replacement.

Direct-Push Cylinder Rebuild

Direct-push (front-mount or under-body) single-cylinder hoists on light and medium dump trailers are the simplest. Rebuild is standard cylinder work — pull the cylinder, disassemble, inspect the rod, replace seals, honing if needed, pressure test.

Hoist Pump And Valve Service

The hoist pump lives under the truck cab or on the trailer, driven by the truck’s PTO. Pump service on a dump hoist rebuild typically means bench-testing pressure and flow, replacing seals if the pump is repairable, or replacing the whole pump if it’s worn out. The control valve — cab-mounted or air-shifted from the cab — gets tested and rebuilt or replaced as needed.

Hose Replacement

Every dump hoist rebuild includes fresh hydraulic hoses between the truck’s wet-kit system and the trailer’s hoist cylinder. Old hoses flex-fatigue over years and eventually blow. Replacing them proactively during a rebuild is cheap insurance.

When Rebuild Doesn’t Make Sense

Sometimes a hoist is too far gone to rebuild economically. If the cylinder rod is pitted below spec, if the stages of a telescopic are scored internally, if the pump housing is cracked — dump hoist rebuild can still be done but the parts cost approaches the cost of a new hoist. We’re honest about this. If replacement makes more sense than rebuild, we say so and quote the replacement instead.

Cost Ranges For Dump Hoist Rebuild

Simple direct-push cylinder rebuild on a light dump trailer: $500-$1,200. Scissor hoist rebuild with cylinder and linkage service: $1,200-$2,500. Telescopic hoist rebuild on a heavy dump truck or semi-dump trailer: $1,800-$4,500 depending on cylinder size and stage count. Complete dump hoist rebuild with pump and valve service adds $600-$1,800. Replacement rather than rebuild runs $3,000-$8,000+ depending on hoist size and type.

Free Pickup And Delivery For Dump Trailers

Dump trailers with a failed hoist are hard to haul without lifting the body. We offer free pickup and delivery within roughly 60 miles of Ames for dump hoist rebuild jobs. Farther out we can coordinate a hauler.

Turnaround

Dump hoist rebuild is typically a 1-2 week job. Simple rebuilds turn in 5-7 business days. More complex telescopic rebuilds with parts orders take 10-14 business days. Priority scheduling available for critical fleet units — call and we’ll be honest about the timeline.

Common Questions About Dump Hoist Rebuild

Can you rebuild the hoist without pulling it off the truck? Sometimes. Simple seal jobs on accessible cylinders can be done in-truck. Full rebuild almost always requires cylinder removal for bench work and pressure testing.

Do you carry replacement telescopic hoists in stock? Common sizes yes, specialty sizes we order. Standard dump-truck hoist replacement parts are usually available within a few days.

Will the dump hoist rebuild pass DOT inspection? Yes. If the hoist is part of a DOT-inspected dump trailer, our rebuild documentation covers the hydraulic side of the inspection.

Can you upgrade to a bigger hoist during rebuild? Sometimes, depending on frame and mounting compatibility. We evaluate case by case.

Central Iowa Coverage For Dump Hoist Rebuild

Our shop is in Ames, 30 minutes north of Des Moines on I-35. Dump hoist rebuild customers come to us from Ankeny, Grimes, Waukee, Johnston, Newton, Boone, Marshalltown, Nevada, Story City, and further out. Free pickup and delivery within roughly 60 miles for dump trailers that can’t be safely towed. For heavy dump trucks that need the hoist rebuilt in-place, we can sometimes do the work at your yard if it’s within a reasonable drive.

Get A Quote

Call or text 515-292-2599. Send photos of the hoist and the leaking or damaged area. We’ll ballpark the dump hoist rebuild cost over the phone and firm the quote when we see the trailer.