Hyundai r35z-7 Workshop Manual page 88

( ( 2)
Motor pressure is high
The motor displacement is large (low speed displacement) as shown in the figure.
The two speed spool is on the left position if Pin pressure is high. Then, PM1 and PM2 are shutted
by the spool. If the motor pressure is higher and keep the following condition, the spool stay on the
left position.
Ps Dp > Am Pin + Kx
Motor pressure is high : (Ap Ps) < (Am Pin+Kx)
Low speed position
Automatic two speed (Motor pressure is high)
PM1 :Motor pressure
Ap : Pilot pressure area
Ps : Pilot pressure
To chamber of
two speed piston
2-56
Am :Motor inlet pressure
PM2 :Motor pressure
Pin :Inlet pressure
R35Z72TM09