Hydraulics
Pumps, cylinders, valves and hoses. Leak tracing, pressure and flow testing, cylinder repacking.
Authorized service providerService and repair for Sennebogen material handlers and machines.
We come to you. Trucks, heavy equipment, marine engines and generators repaired on your job site, with straight answers from diagnosis to the final repair. If a job needs more time or parts than planned, you hear about it first.
Authorized service providerService and repair for Sennebogen material handlers and machines.
In-house technicians and in-network service contractors. All major makes and models, from compact track loaders to 80-ton excavators.
Pumps, cylinders, valves and hoses. Leak tracing, pressure and flow testing, cylinder repacking.
Diesel diagnostics, in-frame overhauls, transmissions, final drives and cooling systems.
Track measurement and wear reports, rails, rollers, idlers, sprockets and pads.
Boom and stick crack repair, line boring, bucket rebuilds, custom attachments.
Fault codes, harness repair, sensors, controllers and starting and charging systems.
Scheduled service by hour meter, fluid analysis and inspection reports for your fleet records.
Our technicians have completed training and earned certifications from these equipment manufacturers.
Amelong Heavy Equipment was founded by William Amelong, a Long Beach native and formally trained diesel technician who built his experience at equipment dealers and rental companies. Independent since 2022, the company works on trucks, construction, industrial, marine and power generation equipment.
Read our storyWe want you to know exactly who is doing the work. Jobs are handled by our own staff or by service contractors in our network.
Amelong Heavy Equipment employees working on job sites and providing remote support.
Independent technicians we work with to cover more locations, more machine types, and busy periods.
When you book a job, we tell you whether it's assigned to an in-house technician or an in-network contractor.
Photos from recent jobs.
A typical preventive maintenance schedule. We set yours by make, model and operating conditions.
| Interval | What we do | Why it matters |
|---|---|---|
| 250 hr | Engine oil and filter, grease all points, fluid sampling, walk-around inspection | Catches wear early through oil analysis |
| 500 hr | Fuel filters, air filter check, hydraulic return filter, belt and hose inspection | Keeps contamination out of the hydraulic system |
| 1,000 hr | Swing drive and final drive oil, cooling system service, undercarriage measurement | Protects the most expensive drivetrain parts |
| 2,000 hr | Hydraulic oil change, valve adjustment, full system pressure test and report | Restores performance and documents machine condition for resale |
Intervals are general guidance. Always follow your manufacturer's service manual for warranty coverage.
We find the cause on the first trip whenever possible, so you aren't paying for guesswork.
If a repair needs more time or parts than planned, we tell you as soon as we know, so the bill is never a surprise.
Our workmanship is covered for 90 days. Parts are covered only by the manufacturer's warranty, when one is available. Warranty details
Send the details and we'll call you back. We'll tell you whether an in-house technician or an in-network contractor is assigned. If a machine is down on a job site, call us.