wsm STW37 Workshop Manual page 376

STW34, STW37, STW40, WSM
4. REGULATOR VALVE
The regulator valve (1) is installed on the power
steering pump, regulating the oil pressure of the
hydraulic PTO clutch and bi-speed clutch circuit.
(1) Regulator Valve
(2) 3P Hydraulic Pump
(3) Power Steering Pump
8-M6
HYDRAULIC SYSTEM
A: A Port
B: B Port
P: P Port
9Y1211109HYM0004US0
KiSC issued 11, 2014 A