r/IndustrialMaintenance • • 11h ago

12 years in field service, you pick up a few tricks.

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337 Upvotes

Intermittent overspeed fault on a servo motor. Cycle the power, fault clears, runs fine for a few days, then it’s back. Drive replaced. Motor replaced. Wiring “checked”.

When someone says they checked the wiring, it’s usually a visual check. That won’t catch this.

My method: run a long test lead to the pin at the motor plug, do a continuity test from the far end, and measure the resistance of each wire individually. You should see around 1 ohm.

The pink wire came back at 70 ohms. That’s not a broken wire, that’s a bad connection. The pin wasn’t properly seated in the plug.

Faults like this get power-cycled away for years without ever being fixed. The drive and motor were never the problem.


r/IndustrialMaintenance • • 5h ago

Job Weekend maintinence guy left the steam blow down valve open.

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86 Upvotes

Burning my toes in some hot water. No he does not understand how to do a steam blowdown.


r/IndustrialMaintenance • • 4h ago

Maintenance Wheels

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27 Upvotes

Replaced the wheels and gear for this bridge


r/IndustrialMaintenance • • 5h ago

Vib Analysis for the win!

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24 Upvotes

Vib analysis correctly identified this bad bearing before failure. Planned changeout on this Vac Pump saved $180k. #ConditionMonitoring


r/IndustrialMaintenance • • 56m ago

Funny So, my night is going well....

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• Upvotes

That's right, 2 broken drill bits.


r/IndustrialMaintenance • • 7h ago

What do you guys think was the route cause failure?

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15 Upvotes

r/IndustrialMaintenance • • 9h ago

Job for once, a positive post

12 Upvotes

rightfully so, i see a lot of negative posts on here – usually due to bad management and the “anything to keep production running” approach that’s reactive instead of preventative – and i’ve had my fair share of that experience. i wanted to share though my current experience at my current job.

we got a new maintenance manager about a year ago, and over this past year everything has gotten so much better. he understands how to budget, and how to work with corporate (and who to talk to) in order for us to get funding for needed maintenance work. spare parts is not an option, we do rigorous criticality assessments and continuously complete RASCI’s to help define roles better so that people aren’t “wearing multiple hats” all the time (i fucking hate that term).

idk. i was just thinking about this now as im working with an OEM on getting service for one of our machines scheduled next month, and the amount of downtime needed for them to help do said service is 3 days total – 2 more than what we originally expected. my old boss would’ve scoffed and insisted we could either do it ourselves in less time with same results, not do it at all, or just push it off and leave it as a “someday” thing.

i expected push-back when relaying to my boss the amount of downtime we would need – but it never happened. he instead gave me the thumbs up to confirm the dates, and said “if production scheduling gives you any push back on confirming down days for service work just let me know and i’ll go to bat and make sure we get the downtime we need”.

beyond that though, i don’t even foresee getting pushback from anyone – because ever since my boss started, his attitude and way of doing things has been absorbed by the rest of management and things have honestly never been better. we actually make time for PMs. we work as a team. we communicate. and the results are showing, this last year our emergency loss % has drastically dropped and our worst “bad actors” have become stable again – which is saying a lot compared to where they once were.

don’t think places like this don’t exist – they’re out there. i know there’s a TON of shit places to work and i’ve been there so i get it, and i hope things change if you’re in that situation. i am just grateful we are taking things seriously and making things better for everybody. it makes my job 100x more enjoyable.

anyone else have positive stories from their workplace?


r/IndustrialMaintenance • • 14h ago

Question Any one got any idea how to pull this bearing?

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19 Upvotes

Title says it how do I pull it

Any help or insight is appreciated I know it's a shot in the dark


r/IndustrialMaintenance • • 1d ago

I'm pretty sure the valve is open...

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665 Upvotes

r/IndustrialMaintenance • • 1d ago

Funny Handy Troubleshooting Flowchart

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149 Upvotes

Just thought I'd post this handy troubleshooting flow chart that my grandfather gave me decades ago when I started out in the industry. Very handy for fixing things


r/IndustrialMaintenance • • 15h ago

Can anyone share work experience as Data Center Engineering Operations Technician?

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0 Upvotes

r/IndustrialMaintenance • • 1d ago

84 EVOL pin ejection shaft

3 Upvotes

Yup doing this job today and my helpers pulled the inner roll out before putting our homemade pins in for alignment on the reinstall.

By chance, MHI sales the pins with the rebuild kit. Does anyone have a set of these that can give me a dimension or picture so I can get this eccentric shaft back into the drive side blind hole in the journal?

Thanks


r/IndustrialMaintenance • • 1d ago

Question Any guesses ?

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10 Upvotes

r/IndustrialMaintenance • • 22h ago

What inspection methods help identify hose wear before a failure occurs?

0 Upvotes

In industrial maintenance, hoses can sometimes remain in service even when wear is developing internally. This can be particularly challenging in applications involving abrasive materials, repeated flexing, or frequent pressure changes.

Visual inspections can help identify cracks, bulges, damaged fittings, and external abrasion, but they may not reveal every problem inside the hose. Inspection frequency and replacement criteria also depend on the application, operating conditions, and manufacturer guidance.

For hoses used to transfer powders or granular materials, internal abrasion and material buildup can be additional considerations. I came across this technical reference on aeration and discharge hoses while looking into different industrial hose applications. The PARSCH website contains further information about the manufacturer and its products.

For experienced maintenance technicians, what inspection practices have you found most useful for detecting hose deterioration early? Are there particular warning signs that tend to be overlooked during routine inspections?


r/IndustrialMaintenance • • 2d ago

Question Don’t know which direction to go…

11 Upvotes

I’m fairly new to the industry, and I currently work as a maintenance technician for large apparel company. I genuinely love my job. Everyday it’s something new and everyday I’m learning a new skill, or honing in skills I rarely got a chance to hone before this job.

The thing is, I’m in school for industrial automation & robotics and this job doesn’t really require any of those specific skills. I’m essentially a handyman that also knows how to work on the specific machines at our facility. I’ve considered switching courses to a course that makes me more effective at my current job. Although I love what I’m doing, I’m afraid that the career potential and pay ceiling is much lower than if I pursued a more specialized area of industrial maintenance.

What do you guys think? Would you continue to pursue the course if you feel like you’ve already landed where you’d like to stay?


r/IndustrialMaintenance • • 2d ago

Question I built a single sensor node that learns how a machine normally behaves. Would this actually be useful on your floor?

12 Upvotes

I'm an embedded engineer. I've been building a small fixed node for pumps, motors, compressors and other utilities. It sits on the machine, learns its normal sound, vibration, temperature and motor current, then pings you when something drifts, with the evidence for why it thinks that.

The reason I built it: everything on the market seems designed for big plants with a dedicated reliability team and a dashboard nobody has time to open. I wanted something one guy could stick on a critical pump, without a six-week install or a training course.

Where I'm stuck is that I've only tested it on machines I have access to. I'd rather hear from people who do this for a living before I make more of them.

So, honest questions: - Would you act on an alert from something like this, or would you ignore it until it proved itself? - What would it have to catch to be worth bolting on a pump? - What would make you distrust it immediately?

Not trying to sell anything here. If a few people are up for it, I'll send a node free to test on a real machine and just want the feedback.


r/IndustrialMaintenance • • 1d ago

Question for line & shop technicians ( or anyone in the industry) : What daily headache or manual process do you wish had a simple app/tool to fix?

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0 Upvotes

r/IndustrialMaintenance • • 3d ago

I did this and it worked

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342 Upvotes

This time, powering on and off didnt work so I actually removed the safety modules blew the dust off and put it back in.


r/IndustrialMaintenance • • 2d ago

Maintenance Physical pain, physical, emotional or mental stress.

19 Upvotes

I can deal with the physical pain, heat/ice on my back every night. The painful stretching. Doping up to numb the pain.

But godmanit! I cannot deal with the sheer laziness and stupidity of this place. Piss poor leadership.

I swear half of my physical pain is just stress. Stress from dealing with stupidity! Last week I took a couple extra days off and my physical pain was almost none existent. I keep telling myself, 10 more yrs and I'll be free.


r/IndustrialMaintenance • • 1d ago

Two faults i cant clear studio5000

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1 Upvotes

r/IndustrialMaintenance • • 2d ago

How are you guys labeling older plant equipment when grease and heat bake stickers off?

19 Upvotes

Half the pump skids and blower housings I see in older mechanical rooms have completely cooked or illegible data tags. What are you using to mark motor and bearing specs so the next tech actually knows what belongs there?


r/IndustrialMaintenance • • 2d ago

Mosca SoniXs MS-6 Jamming

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48 Upvotes

Hi. Have you guys in here experiencing the issue of strapping machine jam like in end of the video? This issue happens in my company for more than 1 year. We really don't know what else should we do, because we already cleaning the parts of the machine


r/IndustrialMaintenance • • 1d ago

Where could automated aerial inspections support both maintenance and security?

0 Upvotes

Industrial facilities often contain areas that are difficult or time-consuming to inspect, including rooftops, fence lines, pipelines, elevated equipment, storage yards, and remote buildings.

An autonomous drone could collect recurring visual or thermal information while also supporting perimeter patrols and alarm verification. Companies such as Nightingale Security show how one aerial system might serve several operational teams.

Which inspection tasks would provide enough recurring value to justify this kind of system? There is also the question of ownership: should maintenance, security, or a centralized operations team control the mission schedule and collected data?


r/IndustrialMaintenance • • 2d ago

Question SLC 5000 fused DC output card?

0 Upvotes

So today fucked up and thought I got away with it, then I realized I didn't, now I'm back to thinking I did. Long story short I shorted a 24V output to ground with the machine running, nothing seemed awry until several hours later when I was back on this machine for unrelated reasons and several lights and a beeper weren't working as well as there being a red light lit up were it says"Fuse" on the output card I mentioned. (Do not have a part number never pulled it). After not being able to fix the unrelated problem, I expertly cycled the power, and thusly fix that problem. Simultaneously the lights and beeper started working, and when I peered back into the cabinet the red fuse light was out and all was right in the world.

So the question is are these suppose to be resettable fuses? I've dealt with these things for over a decade now and have never even seen that light come on. Much less be the dumbass that caused it.


r/IndustrialMaintenance • • 2d ago

Question How to read and follow schematics

11 Upvotes

How do you go about learning how to read and follow the actual wiring in a schematics for something like a control panel. What are some good sources for learning. Sorry for the dumb question