Hydraulic System

9-2350-238-20-2

e. H y d r a u l i c S y s t e m ( 5 ) . T h e M 5 7 8 R e -

from

the

main

supply

lines

diverted

through

covery Vehicle has an open-center type hy-

the

subsystem.

Hydraulic

fluid

pressure

builds

draulic system. This means that the hydraulic

up within the subsystem to a level high

fluid continuously circulates through the main

enough for the subsystem to function. Preset

hydraulic

supply

lines.

When

hydraulic

pressure relief or pressure reducing valves

subsystem

being

used,

the

hydraulic

fluid

protect the subsystem from too much pres-

pressure in the main supply lines is near zero.

sure,

When a subsystem is used, hydraulic fluid

f. G a s - p a r t i c u l a t e F i l t e r ( 6 ) . T h e

gas-

cab on the boom cylinder and a second filter

particulate filter is used with face masks to

is mounted on the floor board in the driver's

protect crew members from toxic gases and

compartment.

dusty

conditions.

One

filter

mounted

the

1-7