Steering Relief Valve - Komatsu WA250-6 Shop Manual

SEN03827-01

Steering relief valve

(if equipped)
P1: From steering pump
P2: From emergency steering pump
T: Drain
S1: Steering pump oil pressure switch (Low)
S2: Steering pump oil pressure switch (Hi)
S3: Emergency steering oil pressure switch
1. Block
2. Relief valve
3. Orifice
24
10-300
Outline
The steering relief valve is installed to the right
q
side of the transmission and used to hold the
steering oil pressure to the set pressure.
Set pressure: 1.96 MPa {20 kg/cm
(cracking pressure at 0.5
300 Steering system

Steering relief valve

1
}
2
/min)
l
WA250, 250PZ-6