3522.5-0000010 РЭ
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The distributor 6 controls oil flow, that is supplied to hydraulic coupling of rear
PTO drive engagement. The discrete pressure sensor 5, that is active (contacts closing)
under pressure above 0,6…0,8 MPa, is installed in hydraulic line for oil supply from dis-
tributor 6 to hydraulic coupling of rear PTO drive engagement. From sensor 5 is active an-
nunciator 23 situated between buttons 27 and 26.
It is necessary to press button 27 to engage rear PTO drive. In this case to
electromagnet of electrical hydraulic distributor 6 is sent special control PWM signal, that
make it possible oil supply from electrical hydraulic distributor into hydraulic coupling ac-
cording to desired law and gentle start of rear PTO. Engagement of rear PTO drive is dis-
played by annunciator 23. It is necessary to press button 26 to disengage rear PTO. In this
case control signal is removed from electromagnet of electric hydraulic distributor 6, hy-
draulic coupling chamber joints with drain, annunciator 23 goes out and rear PTO drive is
disengaged, also brake of PTO shaft end extension is disengaged.
CECS admit reengagement of rear PTO only upon expiration of 30 seconds after its
disengagement.
At engine stop rear PTO is automatically disengaged and after next engine start it is
necessary to press button 27 to engage rear PTO.
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