RJ 15 Rolling Jack: A Pre-Purchase Checklist for Farm Shop Owners

If you run a farm shop outside Iowa City and you’re pulling differentials off combines, grain trucks, and pickups all week, the RJ 15 rolling jack is probably already on your short list — and before you place that order, you need a real pre-purchase checklist, not just a spec sheet. We sell and ship these units to shops all over Iowa, and the number one thing that trips people up isn’t the jack itself. It’s what happens between the truck backing up to your driveway and the jack actually sitting level on your shop floor. Freight damage, missing pallet jacks, and gate clearance issues cause more headaches than any hydraulic problem we ever see in the field.

What Freight Class an RJ 15 Ships On

The RJ 15 rolling jack ships as a heavy, awkward-shaped crated unit, and that matters more than most first-time buyers realize. It typically arrives on a standard freight pallet via LTL (less-than-truckload) common carrier, not small parcel, which means you need a loading dock or a way to get it off a lift-gate truck. We ask every farm shop customer up front: do you have a forklift, a pallet jack rated for the weight, or at minimum a lift-gate delivery scheduled with the carrier? Skipping this question is the single biggest cause of delayed or damaged deliveries we see with rolling jack orders across Iowa.

Freight carriers serving rural routes around Iowa City sometimes run smaller box trucks without lift-gates, especially on gravel or minimum-maintenance roads. If that’s your situation, tell us before the order ships so we can flag the carrier for lift-gate service or route it through a terminal you can pick up from directly. It’s a five-minute conversation that saves you from a driver refusing to unload a several-hundred-pound crate in your driveway with no way to get it down.

Forklift and Pallet Jack Requirements

Once the RJ 15 arrives, you need a way to move it from the truck to its final spot in the shop. A standard pallet jack works fine on smooth concrete, but gravel, dirt, or uneven farm shop floors are a different story. If your shop floor has any pitch to it or you’re moving the jack across a threshold, a forklift with forks long enough to fully support the pallet is the safer bet. We’ve had farm shop owners try to muscle a rolling jack off a pallet with a floor jack and a couple of 2×4 ramps — it works, but it’s not something we’d recommend doing solo.

Plan your unloading crew before delivery day. Two people minimum, and if you’re using a tractor with forks or a skid steer instead of a proper forklift, make sure whoever’s operating it has done this kind of precision placement before. A rolling jack that gets dropped or tipped during unloading can develop hydraulic seal issues before it’s even been used once, and that’s a warranty headache nobody wants to deal with in week one.

Measuring Your Shop Doorway and Turning Radius

This sounds basic, but we ask about doorway width on almost every rural shop order because pole barn doors and older farm shop entries vary wildly. Measure your widest doorway and compare it to the crated dimensions of the RJ 15, not just the jack’s operating footprint — packaging always adds inches on every side. If your shop has a tight 90-degree turn from the door to where the jack will live, factor that into your unloading plan too, since a pallet jack with a loaded crate doesn’t pivot easily in a tight space.

We’ve talked more than one Iowa customer through un-crating equipment just outside the shop door and hand-carrying the uncrated jack the last ten feet, rather than trying to force a fully packaged unit through a doorway it was never going to clear. It’s not glamorous, but it beats scraping paint off a door frame or, worse, denting the jack’s frame before it’s even in service.

Confirming Weight Capacity for Differential and Fluid Service Work

Differential fluid service on grain trucks and heavier farm equipment puts real demands on a rolling jack, and this is where the RJ 15’s capacity rating earns its keep. Before you buy, confirm the exact rated capacity against the heaviest components you’re actually lifting — not the average, the heaviest. Farm shops tend to service a mixed fleet: pickups, one-ton duallys, grain trucks, and combines, and the differential housings on the bigger equipment weigh more than most shop owners initially estimate.

We walk through this capacity conversation with every rural customer because undersizing a rolling jack is a safety issue, not just a performance one. If there’s any chance your shop will eventually be pulling axle assemblies off larger trucks, it’s worth sizing up rather than buying to today’s exact needs and outgrowing the jack in a year or two.

Setting Realistic Delivery Timelines Around Planting and Harvest

Farm shop owners know better than anyone that timing matters. Ordering a rolling jack in the weeks before planting or harvest, when freight carriers are already stretched thin across rural Iowa routes, can mean longer delivery windows than you’d expect in a slower season. We always ask about your timeline up front so we can set expectations honestly rather than promising a date we can’t hit once the order is in the freight system.

If you know you’ll need the jack for spring differential service, order in winter. Trying to rush an LTL freight shipment into a farm shop during the first warm week of April, when every other rural business is also placing orders, is asking for delays that have nothing to do with us or the carrier and everything to do with regional freight volume.

What to Inspect Before You Sign for Delivery

Never sign a freight delivery receipt without inspecting the crate first — this is standard advice for any heavy equipment delivery, and it applies fully to the RJ 15. Walk around the crate, check for crushed corners, torn shrink wrap, or visible tilt damage before the driver leaves. If you spot damage, note it on the delivery receipt in writing before you sign, and take photos immediately. Signing a clean delivery receipt on a damaged crate makes freight claims much harder to win later.

Once it’s uncrated, do a quick visual check of the hydraulic ram, casters, and handle assembly before you put the jack into service. We’d rather field a quick call about a scuff mark that turns out to be cosmetic than have a customer run a jack for two weeks before discovering shipping damage that should have been caught on day one.

Setting Up the RJ 15 on Your Shop Floor

Once it’s through the door and inspected, final placement matters more than people expect. The RJ 15 needs a reasonably flat, solid floor to roll and operate safely — uneven farm shop concrete with old cracks or frost heave can affect how level the jack sits under load. Walk the exact spot where you’ll be using it and check for dips or high spots before you commit to a permanent work zone.

We also recommend a quick walkthrough of the pump and release mechanism the first time you use it, even if you’ve run other rolling jacks before — every model has small differences in handle throw and release valve feel. A few minutes of familiarization before your first real differential service job beats learning the controls while a grain truck axle is hanging over your head.