An excavator that stops working is rarely somewhere convenient. It's in a trench, at the bottom of a pit, on a pipeline right-of-way, or parked on a lease road twenty minutes past the last gate. Loading it onto a float and hauling it to town can cost more than the repair, and it puts the whole crew standing around while it happens.
Field service for excavators means diagnosis and repair at the machine. Hydraulic leaks and hose failures, slow or weak functions, engine faults and no-starts, electrical and sensor problems, swing and travel issues, and general wear items are all things that get handled on-site with the right equipment. When a repair genuinely needs a shop, you'll hear that before you're paying for field time.
The most common excavator call by a wide margin. Boom, stick, bucket and travel lines chafe, age and burst. We build replacement hose on-site, refill and purge the system, and look at the routing so the same line doesn't fail again next month.
A machine that lifts poorly, curls slowly, or loses power as it heats up. Causes include low or contaminated fluid, a restricted suction, a failing pump, relief valve problems, or worn cylinders. Pressure testing separates them instead of guessing.
Batteries, starters, fuel restriction, air in the fuel system, DEF and aftertreatment faults, and sensor problems all keep excavators from firing or running properly. We pull codes and test rather than swap components.
Plugged coolers packed with dust and debris, a failed fan or fan drive, a stuck thermostat, or a leaking hose. Hydraulic oil overheating causes just as much damage as coolant overheating, and both show up on tight, hot job sites.
A machine that won't swing, drifts on a slope, tracks unevenly, or leaks oil at a final drive. Diagnosis determines whether it's hydraulic, a motor, or a mechanical failure inside the drive.
Dead displays, joystick and pilot control problems, wiring chafed by the boom or track frame, corroded connectors and failing sensors. Wet, muddy work is hard on excavator wiring.
Access is the biggest variable with excavator calls, so the more you tell us about the site, the better we can plan.
Make, model, approximate size class, and what it's doing or not doing. Fault codes off the display are useful.
Road conditions, ground bearing, whether the machine can be walked to firmer ground, and any site access requirements.
Hose and fittings, hydraulic oil, filters, electrical supplies, diagnostic tools and hand tools all come on the service truck.
Pressure tests, electrical tests and code review tell us what actually failed rather than what's easiest to blame.
The machine gets cycled through its functions and checked for leaks and temperature before we leave the site.
Field service covers the machine sizes and brands typically running around Fort St. John on civil, pipeline, forestry and site work.
Excavator field service is dispatched from Fort St. John to job sites around Charlie Lake, Taylor, Montney, Buick, Wonowon, Hudson's Hope, Dawson Creek and Chetwynd — pits, right-of-ways, lease sites and rural properties included. See the full service area.
Moving a machine to town costs a lowbed, a permit in some cases, and most of a day. Field repair skips all of it.
Most machine downtime costs more in idle crew and equipment than in parts. Getting the machine going same-day is the whole point.
Hose built on-site, fluid on board, and the tools to test pressures properly instead of guessing at the cause.
We can reach most sites, but the service truck needs solid ground to work from. If the machine is buried in mud, it may need to be walked or pulled to firmer ground first — tell us the situation on the phone and we'll figure out the plan together.
Track tensioning, adjuster and idler issues, and roller and sprocket inspection are field work. Full undercarriage replacement is a bigger job that usually makes more sense in a yard with proper support and equipment.
A lot of hydraulic diagnosis is mechanical — pressure testing, flow behaviour, temperature and leak-down. Some newer machines gate certain electronic adjustments behind dealer software, and we'll be upfront if that's the limit on your machine.
Common hydraulic oils and filters travel with us. Tell us the make and model when you call so we bring the correct spec.
Sometimes, depending on machine size, ground conditions and lifting requirements. Smaller machines are realistic; large ones usually aren't. We'll tell you honestly which category yours falls into.
Often, yes — many operators prefer it, since the machine isn't producing anyway. Call and we'll see what fits.
More answers on the general service FAQ.
Describe the machine and the failure. A lot of excavator problems get fixed where the machine sits, and a five-minute phone call can save you a lowbed bill.
Hose built and installed on-site when a line blows.
Wheel loaders and backhoes serviced at your pit or yard.
Compact equipment repair and attachment troubleshooting.
Back to the Fort St. John mobile mechanic home page, browse all services, or contact us.