TM 5-3805-281-24-1
Theory of Operation
BYPASS SHUT-OFF VALVE OPERATION
The function of the bypass shut-off valve is to combined
supply oil from the front pump (E) with supply oil from the
rear pump (F) for attachment operated by the auxiliary
valve (I).
Actuating the auxiliary function also sends the auxiliary
pilot pressure signal (D) to the end of the bypass shut-off
valve (C) spool shifting the spool up. The spool blocks the
flow of supply oil through the neutral passage (A) and
routes it by an external hose from the outlet (B) to the
inlet (H) for the power passage to the auxiliary valve in
the left control valve.
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CED,TX08227,3170
1904JUN981/2
