MTZ 1220.1, Руководство оператора

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MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D21
Hydraulic lift linkage control
with hydraulic lift
The hydraulic lift linkage is controlled us-
ing two control levers (1) and (2), located
on the right control board inside the cab.
The draft control lever (1) is the nearest
to the operator's seat and has the follow-
ing positions:
•
Extreme forward — maximum depth
of ploughing (“9”).
•
Extreme rearward — minimum depth
of ploughing (“1”). Full range of the
lever's positions is denoted with num-
ber from “1” to “9”.
The position control lever (2) has follow-
ing positions:
•
Extreme rearward (“1”) — transport
position of rear lift device.
•
Extreme forward (“9”) — minimum
height of the implement above the
ground.
The maximum lifting height of the imple-
ment using the lever (2) is eliminated by
adjustable stop (3).
Note: The mixed control is carried out
by means of the limitation of the tillage
depth using the lever (2) during draft
control operations.
Hydraulic system pump control
The control lever has two positions:
• “The pump is engaged” – upper posi-
tion;
• “The pump is disengaged” – lower po-
sition.
Important! Disengage the pump at cold
start or maintenance. Engage the pump
at the engine minimum idle speed only.