Coaldust
Senior Member
- Joined
- May 9, 2011
- Messages
- 3,354
- Location
- North of the 60
- Occupation
- Cargo Tanks, ULSD, RUG, Methanol, LPG
Tyler D4C,
Why not just use a HE filter all the time?
Damn good question. You are a quick study.
My students would ask that question about half way through my contamination control class.
Quick answer is the design of mobile hydraulic systems, especially on compact equipment is always a compromise for space. Reservoirs and filters are made smaller than standard best practices to make them fit on the machine. Of course, cost is an issue, too.
The HE (clean-out) filters plug up very fast in normal ops. 50-100 hours, instead of the normal 500 hour change interval.
The manufacturer could install a super efficient filtration system, but the filter assemblies would be huge and costly. Compact equipment is built to a price point in that highly competitive market.
Plus, there is some planned obsolescence built in to keep the parts and service departments busy.
Why not just use a HE filter all the time?
Damn good question. You are a quick study.
My students would ask that question about half way through my contamination control class.
Quick answer is the design of mobile hydraulic systems, especially on compact equipment is always a compromise for space. Reservoirs and filters are made smaller than standard best practices to make them fit on the machine. Of course, cost is an issue, too.
The HE (clean-out) filters plug up very fast in normal ops. 50-100 hours, instead of the normal 500 hour change interval.
The manufacturer could install a super efficient filtration system, but the filter assemblies would be huge and costly. Compact equipment is built to a price point in that highly competitive market.
Plus, there is some planned obsolescence built in to keep the parts and service departments busy.