Holder 4.74 manual Operating the hydraulic cushioning* front power lift, Adjusting the hysteresis

Operating instructions

Operating the implements

C 4.74

Operating the hydraulic cushioning* (front power lift)

The hydraulic cushioning allows the ground pressure of the implement to be decreased steplessly and to increase the front axle loading. This improves the climbing ability. When driving on roads with a lifted implement, the hydraulic sys- tem will absorb shocks caused by bumps in the road.

-Press button (5). LED (7) will come on.

The electronic pressure sensor (2) with a digital display al- ways indicates the current pressure of the front power lift when float position is turned off.

-Press the mode button (3).

-S.P.1 will appear in the display and after 2 seconds the current setting will start to blink.

-You can change the setting with the decrementing button (1) or incrementing button (4), until the ground pressure of the device is reduced as desired.

-The value S.P.1 must be less than the pressure with a raised implement.

NOTE

After 3 seconds without a button being pressed, the display reverts and the settings are stored.

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Adjusting the hysteresis

-Press the mode button (3) twice within 3 seconds.

-HYS.1 will appear in the display and after 2 seconds the current setting will start to blink.

-You can change the setting with the decrementing button (1) or incrementing button (4). It should be between 5 and 10 bar.

NOTE

The gas pressure in the diaphragm accumu- lator is 30 bar.

* Option

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