TripleR
Super Star Member
- Joined
- Mar 5, 2009
- Messages
- 18,615
- Location
- Missouri
- Tractor
- Kubota M8540HDC, L5740HSTC, BX2200, BX2660, John Deere 425&1025R, Case, Massey Ferguson, Ford
Yup ........ that's true ......
I would suspect that the porosity of the filter paper is probably what actually does it ......
Ahhhhh .... I don't think so ..... at least not on my B2910 .....
The inner filter (which is a screen) is designed to keep boulders and other large objects, such as your bathtub, lawnchairs, and kid's tricycle, out of the engine .... it just ain't gonna do a whole lot as far as dust (dirt mebbe .... if they are large clods .....)
And Kubota DOES NOT necessarily recommend changing the secondary every time you change the primary ....
Well, that might depend on which manufacturer you are talking about ......
But at any rate, they are in the business of selling air filters now aren't they ?
Might depend on how much air pressure you are using ...
Jeez .... what's your day job ..... parts manager for dealership ? .... or sales rep for a filter manufacturer ?
Internal combustion engine air filters can often go far, far longer than what is commonly believed (as a consequence of air filter manufacturer propaganda) - although in the case of tractors, which often operate in much dirtier environments - that's much less the case than with other over-the-road vehicles - as an example:
I have an '06 Dodge Sprinter (Mercedes) that gets driven over the road .... it's a diesel engine and has a filter minder .....
I've changed the air filter exactly twice since we bought it new ..... first time was at 123,000 miles ...... and the second time was at 271,000 miles .... neither time was the filter minder indicating a restriction and the vehicle was running fine (no loss of performance) .... the vehicle now 282,000+ miles on it.
Having said that, I do agree that equipment that operates in a "severe service" environment does need more care and maintenance than others do ....
Very good post.