SkyTrak 6036 Service Manual User Manual

Page 273

8.57

Model 6036 Legacy

Hydraulic System

Figure 8-25 Crab Steering Mode

c. Crab Steering

When the steer select switch (Fig. 8-25, 1) is in
the crab steer (FORWARD) position (2), the front
wheels (3) will steer in the direction the steering
wheel is turned and the rear wheels (4) will steer

in the same direction.

1. Crab Steering Left Turn (Fig. 8-20)

With the steer select switch (Fig. 8-25, 1) in the crab
steer (FORWARD) position (2), one of the steer select
valve solenoids is energized. The power steering control
valve is shifted so that system pressure from the
secondary function manifold is applied through the intake
side of the power steering unit metering section.

A specific amount of hydraulic oil is exhausted from the
metering section and routed back to the power steering
control valve, internal to the power steering unit, where it
is channeled to the left rod end of the front steering
cylinder.

Oil from the right rod end of the front steering cylinder
flows through the steer select valve to the right rod end of
the rear steering cylinder. Oil from the left rod end of the
rear steering cylinder flows through the steer select valve
and back to the power steering control valve, then to the
return filter in the reservoir.

2. Crab Steering Right Turn (Fig. 8-21)

Oil from the right rod end of the rear steering cylinder
flows through the steer select valve to the right rod end of
the front steering cylinder. Oil from the left rod end of the
front steering cylinder flows to the power steering control
valve, then to the return filter in the reservoir.

MA7030

MT3890