Buhler 2290, 2335, 2425, 2375, 2360 manual Hydraulic System Filter Bypass

SECTION 2 - OPERATION

Hydraulic System Filter Bypass

The Electronic Instrument Control System will notify the operator that the hydraulic system filter is in the bypass condition and oil entering the hydraulic system is not passing through the filter element. The hydraulic system will still receive oil, but the oil will not be filtered and may contain contaminants. See “Hydraulic System Troubleshooting” in Section 4 for possible causes of filter bypass. Failure to correct the filter bypass condition may cause damage to the hydraulic system components. The following description details the reaction of the electronic monitor and audible alarm in the event of hydraulic system filter bypass:

With the engine running and the hydraulic system filter in the bypass condition, the hydraulic system filter warning light, 1, on the warning light bar will illuminate. There will be a six-second delay before the audible alarm sounds a solid tone for four seconds. The upper portion of the monitor will flash “CHK” “LMPS,” indicating that the operator should look at the light bar to determine the function that is causing the alarm to sound, i.e., hydraulic system filter bypass. The lower portion of the monitor will continue to display whatever is selected on the rotary select switch.

The operator can cancel the audible alarm and the “CHK” “LMPS” display on the upper portion of the monitor by pressing the acknowledge/reset button once. The hydraulic system filter bypass light on the warning light bar will stay lit until the bypass condition is corrected. The audible alarm and “CHK” “LMPS” display will not return until the ignition switch is turned to the “OFF” position and the tractor is restarted.

Hydraulic system filter bypass is considered a non-critical alarm function and will not cause the electronic monitor to go into the “STOP” mode or cause the automatic shutdown to activate.

ATTENTION: It is important that the operator shut the tractor off and find out the cause of the hydraulic system filter bypass light indication. Take corrective action immediately to prevent damage to the hydraulic system components.

1

Figure 2-107

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