Kubota B2910 - Operation of Relief Valve

82410 • 82710 • 82910 WSM, 12271
• Operation of Relief Valve
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12270F70070
7 STEERING
t
or road resistance to the front tires is too great, the
spring (3) is compressed
to generate a gap between the
poppet (4) and the valve housing (5). The pressure-fed
oil flows to tank port through the gap so that pressure
rise is restricted.
The relief valve setting pressure can be adjusted by
turning the adjusting screw (1).
(1) Adjusting Screw (3) Spring
(2) Lock Nut
This power steering is equipped with a direct-acting
relief valve to restrict the maximum pressure
in the
hydraulic circuit and to prevent breakage of the hydraulic
equipment.
When the pressure in the hydraulic circuit exceeds
the relief valve setting pressure in such a case that the
maximum steering angle of the front wheels is reached
(4) Poppet
(5) Valve Housing
12270M700BO
7-M7