Buhler 2335, 2425 Bleeding Remote Cylinders, Operating Continuous Flow Hydraulic Equipment, 132

SECTION 2 - OPERATION

BLEEDING REMOTE CYLINDERS

When connecting a cylinder with trapped air (i.e., a new cylinder, one that has been out of service, or one that has had the hoses disconnected), it will be necessary to bleed the cylinder to remove the air.

With the hoses connected to the remote control valve couplers at the rear of the tractor, position the cylinder with the hose end uppermost and extend and retract the cylinder seven or eight times using the remote control valve operating lever. Check the hydraulic tank oil level before and after operating the remote cylinder.

OPERATING CONTINUOUS FLOW

HYDRAULIC EQUIPMENT

Continuous flow hydraulic equipment (i.e., hydraulic motors) should be connected to the right-side (color-code gray) remote control valve couplers with the pressure hose connected to the upper coupler and the return hose connected to the lower coupler. These are indicated by a hydraulic motor symbol at the couplers with counterclockwise rotation on the upper coupler and clockwise rotation shown on the lower coupler.

NOTE: There is a “zero return” line, 1, installed next to the implement valve on the right-hand side. This line runs directly back to the hydraulic reservoir and is intended to be used as a hydraulic motor case drain line.

1

Figure 2-179

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