Coolers And Hear Exchangers Flashcards
1
Q
Significant sources of heat can include…
A
Pump
Valve actuation
Flow of hydraulic through the system
2
Q
What are the operating temperature?
A
40-60 degrees
3
Q
What are the causes of overheating?
A
Lack of oil Wrong oil Restricted flow Working beyond capacity Oil cooler not working
4
Q
How does the excessive temperature effect the oil?
A
Effect viscosity and hastens oxidation
Resulting in varnish and sludge
5
Q
What does the varnish and sludging effect?
A
Valve spool stiction
Filter clogging
Wear between closely fitted parts
Degradation of seals
6
Q
What is the most common type of cooling?
A
Air cooling through a radiator matrix
Low running costs and easy installation
