Check and adjust hydraulic limiter

AR46.25-G-3090B

Check and adjust hydraulic limiter

8.9.11



Checking

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

1

Raise front axle and lower onto jack stands

 The wheels must turn freely.

2

Remove cap from test connection (1)

3

Attach pressure gauge and test hose

 Pressure gauge

*437589002100

 Test hose

*437589009000

4

Start engine and run at high idle speed

 Oil temperature in steering system
approx. 50 °C.

5

Move steering to left and right stop and read off values on pressure gauge

 There is a pressure buildup (limit pressure) at the respective stop. This pressure must be read off.

If the values are not reached, switch off the engine and adjust the hydraulic limiter.

*BE46.20-N-1001-01G

Adjust

6

Perform basic setting

AR46.25-G-3090-01B

7

Start engine and run at high idle speed

 Oil temperature in steering system
approx. 50 °C.

8

Move steering to left stop and hold at this position

 Make use of the spring travel at the steering wheel rim.

 Have a second person move the steering wheel.

9

Slowly screw in left limiter adjustment screw (3) until specified value is reached

 As you screw in the adjustment screw to reach the specified value, repeatedly release the steering from the left stop slightly and then move it back to the left stop position.

If the specified value has still not been reached after several adjustment procedures, replace the left limiter adjustment screw (3): 

*BE46.20-N-1001-01G

Remove/install adjusting screw of hydraulic limiter

AR46.25-G-3070B

10

Tighten lock nut (5) of left limiter adjustment screw (3)

 Counter the left end limiting adjustment screw (3).



*BA46.20-N-1008-01G

11

Move steering to right stop and hold at this position

 Make use of the spring travel at the steering wheel rim.

12

Slowly screw in right limiter adjustment screw (4) until specified value is reached

 As you screw in the adjustment screw to reach the specified value, repeatedly release the steering from the right stop slightly and then move it back to the right stop position.

If the specified value has still not been reached after several adjustment procedures, replace the right limiter adjustment screw (4): 

*BE46.20-N-1001-01G

Remove/install adjusting screw of hydraulic limiter

AR46.25-G-3070B

13

Tighten lock nut (5) of right limiter adjustment screw (4)

 Counterhold the right limiter adjustment screw (4).



*BA46.20-N-1008-01G

14

Turn off engine

15

Detach pressure gauge and test hose

 Pressure gauge

*437589002100

 Test hose

*437589009000

16

Attach cap to test connection (1)

17

Conduct a road test

 Check the overall steering behavior of the vehicle.

Number

Designation

Model 405.05/10/12/
20/22 with steering gear LS6BK

BE46.20-N-1001-01G

Adjustment pressure of pressure reduction valves

-

bar

50 (-10)

Engine speed

rpm

800...900

Number

Designation

Steering LS6BK in model 405.05/10/12/
20/22

BA46.20-N-1008-01G

Lock nut on end limiting adjustment screw

Nm

38