8/18/2019 Bombas Hidráulicas, Descripción

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Información de servicio

Título de documento: Grupo funcional: Tipo de información: Fecha:

Bombas hidráulicas,

descripción

913 Información de servicio 4/1/2016 1

Perfil:

L120F Volvo

Bombas hidráulicas, descripciónHydraulic pumps (P1, P2, P3)

P1 provides the working hydraulics with oil.

P2 primarily provides the steering system with oil. Secondarily P2 also supplies servo hydraulics, the brake system and the

working hydraulics with oil. P1 has an electrical power limitation, a PWM-valve, which can drain the LS-pressure to tank. See

Regulación de flujo de bomba hidráulica, descripción.

Figure 1

Hydraulic pump, principle illustration P1, P2

1.

2.

3.

4.

5.

Pressure compensator

Flow compensator

Pump unit

Control piston

Yoke

P3 primarily provides the hydraulic cooling fan with oil. Secondarily P3 also provides the brake system with oil.

Figure 2

Hydraulic pump, principle illustration, P3

8/18/2019 Bombas Hidráulicas, Descripción

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1.

2.

3.

4.

5.

6.

7.

8.

Flow compensator

Pressure compensator

Control piston

Flow compensator slide

Pressure compensator slide

Regulator

Pump unit

Yoke