How often do you change yours out?

Every other leap year during a full moon phase. Otherwise the warranty is null and void.

I repack mine and with grease from a blue bucket only.

Here's a true story from Vietnam.

Part of my job after every flight was to fill out two forms. A dash 12 and a dash 13. On the dash 12 I entered the names and service numbers of those operating the aircraft and the duration of the flight. On the dash 13 I entered anything that seemed out of the ordinary about the way the aircraft performed or any malfunctions. These forms then were turned in to the maintenance psgt at the end of the day.

This maintenance guy was almost smart enough to tie his shoes and certainly didn't belong in the slot he was filling.

One day I wrote an entry on the dash 13 that read......."pilot relief tube, anti-ice inop".

First of all there was no pilot relief tube. Secondly, at 90 degrees it would not have mattered if the "anti-ice system" was operable or not.

This moron spent weeks trying to track down a new anti-ice heat element for this non-existent system.


You can imagine that a helicopter has a lot of moving parts with odd names as well as generating lots of centrifugal force in various directions.
It is common for grease and oil mist to get flung around and land on various areas of the aircraft. Next, dirt and dust start to stick in the oil and grease.

Eventually, it really does start to affect performance of the aircraft by creating "parasite drag" through disruption of airflow over control surfaces.
So.........I complained to this same PSGT maintenance guy about how the filthy aircraft was suffering degraded performance.

I told him to order 5-10 gallons of rotor wash and to clean up all surfaces of the bird.

Again he spent weeks trying to get a bucket of rotor wash. We finally got rid of this guy when he was caught falsifying the dash 12 forms so he could collect flight pay.

At least he wasn't trying to be crew chief...."Jesus".......as in the rotor nut

Excellent white17. I guess I'll need to order up some "prop wash" to get rid of that danged parasitic drag.

On the muffler bearings, it seems like for the newer vehicles, my mechanic told me they're easier to replace using a left-handed crescent.

Jack

I Change my the same time every year on February 30th

I change them the Same time I changed the spark plugs on my 7.3 diesel.

I change them every time I change the blinker fluid..

You fool, everyone knows it has to be a METRIC left-handed crescent wrench….

I change them when they start squeaking. Not very often.

Same time I swap the tires' winter air gor summer air.

Usually buy a bucket of steam.at the same time, clean everything up.good.

I change em when I grease the windshield pistons.

I guess I wasn't aware vehicles had them. Where are they located and how often do they need serviced?

I knew I forgot something. I was going to grease them when I got done changing my piston return springs.
Thanks for the reminder.

If this idiot had been just a bit smarter I would have told him about the parasite drag and told him to order some Ivermectin. He still be there trying to figure that out !

I worked at a large paper mill. One of the machines had a problem so the machine leader called one of the electricians who worked there to fix it. The electrician found the problem and corrected it. The machine leader asked the electrician what the problem was he replied he changed the flux capacitor ( back to the future )
The machine leader bought right into it. He wrote it down in the log for the machine. Word got around very quickly that he had fallen for that trick. BTW the machine leader was not very liked by all so everyone got a laugh out of the incident , except for some of the bosses who had a talk with the electrician....lol.

My muffler bearings are sealed and can't be greased... so I pay extra for the marine grade ones.

And I replace them at the same time I replace the BA 1100 NST ring on my tires... Don't want them leaking air and going flat.

Mike

Don’t forget to adjust the Fetzer valve while you’re at it,

My 2002 Chevy S-10 came with a lifetime exhaust system and believe it or not, even after over 200,000 miles, I've never had to replace the muffler bearings. Can't say that for the flux capacitor though. It's starting to oscillate when I get her up over 100mph.