9.3 Steering and slewing circuits..........................................................................................................31
9.4 Turntable supply and return circuit .................................................................................................32
9.5 Equipment pump, stabilizers, Oscillation lock and cooling circuits ................................................33
9.6 Boom, intermediate boom, dipper, offset and additional functions ................................................34
9.7 Bucket circuit ..................................................................................................................................35
9.8 Spool valve (A / Down - B / Upper) ................................................................................................36
9.9 Additional hydraulic equipment for fitting of the hammer return on the equipment (option) ..........37
9.10 Tool-holder circuit (option) ..............................................................................................................38
9.11 Air conditioning circuit (option) .......................................................................................................39
9.12 Telescopic stabilizers (option) ........................................................................................................40
9.13 Safety valves (option).....................................................................................................................41
9.14 Manual accelerator (option)............................................................................................................42
9.15 Volvo tool-holder (option) ...............................................................................................................43
9.16 Additional hydraulic, electrical control of the additional function (option) ......................................44
10. Parts list of the hydraulic diagram .............................................................................45
11. Installation of the electric bundles .............................................................................47
12. Location of the electric components ..........................................................................49
12.1 Solenoid-operated valves...............................................................................................................49
12.2 A relay plate (under the cab seat) ..................................................................................................53
12.3 B relay plate (under the cab seat)..................................................................................................55
12.5 Air conditioning relay box (option) (under the cab floor) ................................................................56
12.4 Relay box (on fuel tank) .................................................................................................................56
13. Parts list of the electric diagram ................................................................................57
14. Adjustment procedure..................................................................................................59
14.1 Adjustment procedure for the heat engine.....................................................................................59
14.2 Hydraulic adjustment procedure for the gears ...............................................................................61
14.3 Direction adjustment procedure .....................................................................................................68
14.4 Hydraulic adjustment of the equipment..........................................................................................70
15. Control Sheet................................................................................................................79
16. Tools .............................................................................................................................81
12MXT 28000
2 M1
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