The Night a Sandvik Rock Drill Died: A Rush Parts Story That Changed How We Order

The call came in at 9:17 on a Tuesday night. Not 9:15. Not 9:30. I remember because I had just sat down with a bowl of chili, and the phone lit up with Dale's name. I knew the chili wasn't going to get eaten warm.

“Drill's down,” he said. “Rotation stalls after about ten revolutions. Sounds like the motor is loading up. I'm going to need a rotation motor.”

Dale runs the blasting side of a granite quarry outside Spokane. The down machine was a Sandvik rock drill on their primary blast-hole rig—the one rig that handles the whole pattern. The crusher below was already eating through the last pile of shot rock. If that drill didn't put holes in the ground by Friday, there was no blast, no shot rock, and no feed for the crusher. On that contract, every day of delay carried a five-figure penalty. Dale wasn't calling about a motor. He was calling about money.

I've coordinated urgent parts for drilling contractors for the better part of a decade. Somewhere north of 250 emergency orders—maybe 220 if I only count the ones with hard deadlines, I'd have to check the log. The pattern is always the same: someone is sure they need a big expensive part, and they've usually diagnosed it from the cab, not from the manual.

The Phone Diagnosis: Ask the Dumb Questions First

I have a ten-minute rule. Before I search for a single part number, I ask the questions nobody wants to ask. I don't do it to insult anyone. I do it because most “broken equipment” is actually “something basic is out of adjustment,” and ordering the wrong part just adds a new problem to an old one.

These are the “are u smarter than a 5th grader questions” of equipment rescue. They sound simple until a quarry is stopped and everybody is tired. “Is the greaser full? Is the feed line connected? Has the shank adapter been pulled recently? What did the pressure gauge say when it stalled?”

“The greaser's been blinking empty since yesterday,” Dale said. “It's probably just a bad sensor.”

“What did the greaser light say the last time the drill bound up?” I asked.

Silence.

Twenty minutes later, Dale sent me a photo of a shank adapter that looked like it had been through a fire. The bushing behind it was scored and starting to gall. The rotation motor was fine. The shank had seized in the bushing because it had been running dry.

“No rotation motor,” I told him. “You need a bushing, not a motor.”

A Drill Press Can't Fix a Scored Bushing

The old bushing came out around 10:15. Randy, the maintenance foreman, put it on the workbench and stared at it like it owed him money. Then he did what mechanics do under pressure: he found an adjustable hone, chucked it in the shop's drill press, and started working on the damaged bore.

A drill press can fix a lot of things. A scored, case-hardened feed bushing from a Sandvik rock drill is not one of them. That bushing has to hold a precise clearance so a thin film of oil stays between the steel surfaces. Once the surface is damaged, you don't “clean it up” with a hone and go back to work. You create a looser fit that will fail again—and this time it may take the shank adapter with it.

I understood the temptation. I've seen the same logic on every desperate jobsite. The instinct that tells a tired mechanic a drill press can save that bushing is the same instinct that tells him a balloon pump can seat a 35-inch haul-truck tire. It can't. Wrong tool, wrong job, worse outcome.

“Randy,” I said. “Stop. We're ordering the real part.”

The 11 p.m. Order: Sandvik Parts Online

The interesting thing? It wasn't scary. Ten years ago, a night like this meant a miserable wait until 8 a.m., then a phone call to a dealer parts counter, then another wait while someone checked stock sheets. The process took hours and left you hoping the guy on the other end had actually done the check.

In late 2024, it looks different. The first time I used Sandvik parts online was for a price check a couple of years earlier. It worked well enough that I wasn't worried now.

I logged in and pulled up the machine by its serial number—not by model name, by serial number. That's the detail that matters. Manufacturers upgrade components over a product's life, and the model name doesn't tell you which revision your front head has. The serial number pulls up the exact exploded view and the exact parts list. Done right, the chance of ordering the wrong bushing was almost zero.

The bushing kit—the bushing plus seals and O-rings—was in stock at the regional distribution center. The web quote for next-business-day delivery was $213. That part I remember exactly, because I almost laughed. The alternative was four days of standard freight.

Four days of downtime would have cost more than a new motor. I clicked yes, paid, and placed the order at 11:12 p.m. The confirmation came back immediately with a tracking number.

The Last Mile No Portal Can Fix

At 6:14 the next morning, the tracking showed the package on a delivery vehicle. I told Dale to have the installation crew ready.

At 10:37, Dale's name lit up my phone again.

“Courier's at the front gate,” he said. “The keypad won't open it.”

The quarry had a new gate lock installed by the haul road contractor two weeks earlier. The address in the portal was right. The gate code in the courier's system was not.

The last 50 feet of a high-tech supply chain were solved the old way: a phone call to the office manager, who knew the gate code and drove down to open it.

The bushing kit crossed the gate at 10:58. The bushing was installed by 12:15. The greaser was filled, primed, and tested. By 1:10 that afternoon, the Sandvik rock drill was turning holes in granite again.

Total downtime, first call to first hole: about 16 hours.

What I’d Do Differently

Looking back, I should have pushed harder about that greaser warning light. Nobody treats a blinking light as an emergency until the drill seizes. Then it becomes a very expensive emergency. The part wasn't exotic. The failure wasn't exotic either. It was maintenance deferred, then dressed up as a parts problem.

I can only speak for mid-sized contractor operations like the ones we support. Big mining houses with full maintenance bays and stocked warehouses may read this and smile. That's fair. My experience is based on a few hundred rush orders, mostly on that side of the industry.

One note: this all happened in late November 2024. Sandvik has kept changing its customer portal and delivery options, so verify what the current process looks like before you assume something will arrive overnight.

Bottom line: what was best practice in 2015—wait until morning, call the dealer, hope—doesn't hold anymore. Ordering genuine Sandvik parts online from a kitchen table at 11 p.m. is not brave or clever. It's just the way the industry works now.

But the fundamentals haven't changed. Keep the greaser full. Listen to the warning lights. Ask the embarrassingly simple questions first. The portal got us the bushing fast. The discipline is what keeps the drill running in the first place.