Buhler 435, 485, 535 manual Operation Hydraulic System Overview, Hydraulic Quick Couplers, Pump

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Section 3 - Operation

Hydraulic System Overview

Hydraulic System

The tractor comes equipped with either a standard manual hydraulic or the optional electro-hydraulic (EHR) system.. The system consists of a hydraulic reservoir, a load-sensing variable-flow hydraulic pump, an implement valve assembly with flow control capability, quick couplers, a filter and oil coolers as standard equipment..

A master control valve provides priority flow for steering and excess flow to the implement valve.. A closed center steering motor receives priority flow which feeds the steering cylinders..

Hydraulic Quick Couplers

Tractors with manual hydraulics are equipped with four or six remote couplers.. Tractors with optional electro-hydraulics (EHR) are equipped with four, six

or eight couplers..

Each remote coupler is color coded with it’s corresponding control lever..

From bottom to top:

1.Control lever 1 (Green) with load check

2.Control lever 2 (Blue) with load check

3.Control lever 3 (Brown)

4.Control lever 4 (Gray)

5.Control lever 5 (Black)

6.Control lever 6 (White)

7.Control lever 7 (Purple)

8.Control lever 8 (Lime)

Load checks are installed in the “extend” port of the lower two control valves 1 and 2..

8

7	Pump 3
6

5

4 Pump 2

3

2

Pump 1

1

F3-117

435/485/535