TM 5-3805-281-24-1
Theory of Operation
the pilot poppet spring (E) stopping the flow of oil past
The excess supply oil pressure pushes the main
the pilot poppet to return passage. The oil pressure
poppet (B) open to relieve excess supply oil pressure
behind the main poppet (B) increases pushing it
to the return passage (O).
closed.
9025
When the supply oil pressure decreases below the
05
pressure setting, the pilot poppet is pushed closed by
48
TX,9025,GG2505
1917NOV973/3
6-47