TM 5-2420-230-10
1-17. HYDRAULIC SYSTEM.
Hydraulic reservoir (1) supplies the hydraulic pump (2), which is mounted on the back of the transmission on the left-hand
side. Hydraulic pump (2) provides fluid power to the FEL, hose reel, and backhoe through hydraulic lines to the FEL valve
block (3) and backhoe valve block (4).
1-18. STEERING SYSTEM.
Power is supplied to the main steering gear box (1) by an
engine-driven pump (2). The fluid reservoir (3) is
separate from the main hydraulic system. The steering
wheel (4) is mechanically linked to the steering gear
box (1) by steering linkages and a mitre box (5). When
the steering wheel is rotated, the actuating valve in the
steering gear box opens. Pressured oil is applied to one
end of the steering gear piston, causing it to move the
sector shaft and pitman arm. The pitman arm (6) is
mechanically connected to the drag link (7). The drag
link moves the steering mechanism on the front axles (8)
to the left or right, causing the vehicle to steer in the
same direction.
Change 1
