Horizontal directional drill rig in the service bay at A3 Mechanic in Apopka, FL

HDD Equipment Service & Repair in Central Florida

A3 Mechanic is an HDD shop first. Horizontal directional drilling rigs, the mud systems that support them, the vacuum units that follow them and the locating gear that guides them are what this building was built around, and the mechanics here have more than twenty years each on that equipment. The shop is at 4350 Hogshead Rd in Apopka, Florida, serving drilling crews across Orlando, Apopka, Winter Garden, Sanford, Kissimmee and the rest of Central Florida. Diagnostics and many repairs can be done at your yard or on the jobsite, and the bigger jobs come to the shop. Machines available now are listed below. Call (689) 688-6796.

Rigs and support equipment we work on

Drill rigs. Vermeer D series and Ditch Witch JT series rigs are the daily work here, from small utility machines up through mid capacity rigs, along with Universal HDD UNI rigs. A3 Mechanic is a Universal HDD dealer in Florida, which means the parts, the service and the machines for that line all come from Apopka instead of from out of state. New Universal HDD rigs, mixers, tanks and mud pumps are on the new machines page.

Mud pumps, mixers and tanks. A drill is only as good as the fluid going down the hole. The shop works on mud pumps, mixing systems and tanks, including pump wear parts and packing, valves, plumbing, drives and the engine or motor turning the pump.

Vacuum excavation units. Vac units live a hard life and they come in with blower problems, water system problems, hose and fitting failures, filtration that has been ignored and hydraulic or engine faults on the machine that carries them.

Locators and transmitters. DigiTrak, Subsite, Underground Magnetics and Radiodetection locating equipment is supported here, and used receivers, displays and transmitters are tested before they are sold. Available locating equipment is on the locators page.

What breaks on an HDD rig

Drill rigs fail in ways that are specific to the work, and knowing where to look is most of the job.

Rod loader. Rods that hang up, a loader arm out of adjustment, worn grippers, sticking cylinders, sensors or switches that no longer tell the machine where the arm is. A loader that mishandles rod slows every joint of every bore.

Carriage and vise. A carriage that chatters or drags, worn slides or rollers, a vise that will not hold or will not break a joint, wrench dies that have rounded off. Vise problems get blamed on the rod long after the vise is the actual cause.

Drill string and tooling. Worn or bent rod, damaged threads, sub savers and collars that should have been replaced, a sonde housing that has lost its seal. Rod, reamers, bits, swivels, pullers and housings are stocked at the shop and listed on the HDD parts page.

Hydraulics. Low thrust or pullback, slow rotation, a rig that gets hot and weak as the day goes on, weeping cylinders and blown hoses. Hydraulic work is done in house, including hoses, cylinders and pumps.

Engine. Hard starts, rough idle, water in the fuel, clogged filters, coolant loss, DEF faults and regen loops. A rig that will not make rated engine speed under load will never make rated pullback either.

Electrical. Batteries, alternators, starters, corroded grounds, chafed harnesses, machine control faults and displays that have stopped reporting the truth. Florida water and vibration find every weak connector eventually.

Most of that list is cheaper to prevent than to repair. Preventive maintenance on a drill rig is not complicated work, but it is easy to skip when the machine is booked solid: fluids and filters on schedule, hydraulic oil sampled and changed before it cooks, radiators and coolers blown out rather than left packed with dirt, greasing the carriage and the loader instead of waiting for a squeal, wrench dies and grippers replaced while they still grip, and rod inspected for wear and bent joints before it damages the vise. A rig that gets a proper going over between jobs breaks down on a schedule you choose. A rig that does not breaks down halfway under a road. The shop will set up a maintenance interval around how your crew actually runs the machine, in the shop or at your yard.

How A3 diagnoses it

The rig gets diagnosed before anything is replaced. We start with the operator, because the person who was on the machine when it quit knows what it was doing and when. Then the scan tool goes on and the current and stored codes and live data come off the machine, so we are working from what the rig reports rather than from a hunch. Then the tests: hydraulic pressure tests against the machine’s own specifications, fuel system checks, electrical checks with a meter on the circuits involved, and a visual inspection of the leaks, cracks, chafes and wear that no scan tool will ever show. Filters, fluids and service history get looked at too, because a machine’s maintenance record usually explains half of what is wrong with it. Then the rig is run, under load where that can be done safely, so the fault is reproduced rather than assumed. Only then do we tell you what it needs. On a drill, guessing is expensive twice: once for the wrong part and once for the day of drilling you did not get.

Brands and machines we work on

Vermeer, Ditch Witch and Universal HDD on the drilling side. DigiTrak, Subsite, Underground Magnetics and Radiodetection on the locating side. Bobcat, Kubota, Takeuchi, John Deere, JCB and Wacker Neuson on the machines that work alongside a drill crew, from mini excavators to compact track loaders. ELGi, Atlas Copco, Ingersoll Rand and Airman on the air side, and A3 Mechanic represents ELGi portable air compressors in Florida. Mack, Kenworth and International on the trucks that haul all of it. Those are the brands the mechanics here work on every week, which is why they are also the brands the shop stocks parts for and sells.

Shop or jobsite

A rig down in the middle of a bore is a different problem from a rig that needs a rebuild, so there are two ways to handle it. Mobile service brings diagnostics and many repairs out to your yard or your jobsite anywhere in Orlando, Apopka and Central Florida, which is usually the right answer when nobody yet knows what failed, when the fix is likely to be a hose, a sensor, a filter or an adjustment, or when hauling the rig costs you more than the repair. Shop service is the right answer when the job needs a lift, a press, heavy disassembly, certified welding or serious bench time, and it is normally the faster path once a repair turns into a teardown. Call the shop, say what the rig is doing and where it is sitting, and we will tell you which one makes sense for your machine.

Service area

The shop is at 4350 Hogshead Rd, Apopka, FL 32703, open Monday to Friday, 7 AM to 5 PM. A3 Mechanic serves HDD crews in Orlando, Apopka, Winter Garden, Sanford, Kissimmee, Clermont, Winter Park, Ocoee and the rest of Central Florida, covering Orange, Seminole, Lake and Osceola counties. Apopka is roughly twenty minutes northwest of downtown Orlando by way of US-441, which puts the shop close to most of the fiber, utility and site work going on across the metro. Call (689) 688-6796 and talk to someone who works on drills for a living.

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Frequently asked questions

Which directional drills do you service?

Vermeer D series, Ditch Witch JT series and Universal HDD UNI rigs are the machines this shop sees most, along with the mud pumps, mixers, tanks and vacuum units that work with them. A3 Mechanic is a Universal HDD dealer in Florida, so parts and service for that line come out of Apopka rather than from another state.

My rig has lost pullback. Where do you start?

With the hydraulic system, because pullback is hydraulic before it is anything else. We check system pressures against spec, look at the relief settings, test whether a cylinder or a motor is bypassing internally, and check filters and oil condition. Low power can also come from an engine that is not making rated speed under load, so the engine gets checked too.

Do you work on mud pumps and mixing systems?

Yes. Mud pumps, mixers and tanks are part of HDD service here. That covers pump wear, seals and packing, valves, suction and discharge plumbing, drive components and the engine or motor turning the pump, plus the plumbing and controls on a mixing system. A weak mud system shows up as a bore that will not clean or a reamer that loads up.

Can you service a rig on the jobsite?

Mobile service covers diagnostics and many repairs at your yard or on the jobsite across Orlando, Apopka and Central Florida. That is often the right call for a rig that is down mid bore. Work that needs a lift, heavy disassembly, a press or certified welding comes into the Apopka shop, where the rig can be properly supported.

Do you repair locators and transmitters too?

The shop supports DigiTrak, Subsite, Underground Magnetics and Radiodetection locating equipment, and used locators are tested on the bench before they are sold. If a receiver is reading wrong or a transmitter has stopped talking to it, call with the model of the receiver and the sonde you are running so we can match what you have.

Can I buy rod, reamers and tooling at the same time?

Yes. Drill pipe, reamers, bits, pullers, swivels, sub savers and sonde housings for Vermeer and Ditch Witch rigs are stocked at the Apopka shop, along with bentonite and polymer for the mud system. Buying tooling where the rig is serviced means the rod and the machine were matched by the same people.

Do you sell new HDD machines?

A3 Mechanic sells new Universal HDD rigs, mixers, tanks, mud pumps and drilling fluids as a Universal HDD dealer in Florida, and used HDD rigs and support equipment come through the yard as well. A3 Mechanic is a licensed equipment dealer, so title, registration and sales tax are handled the way a dealer handles them.

Machine down? Truck in the shop too long?

Talk to a mechanic at our Apopka shop, Mon to Fri, 7 AM to 5 PM. Shop and mobile service across Central Florida.

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