MTZ 1220.1, Operator'S Manual

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MTZ 1220.1/1220.3 Section G. Operating instruction
G2
Operation of a tractor equipped with
a HLL with a hydraulic lift
A HLL with a hydraulic lift is controlled
by two handles located in the cab on the
right control panel:
- the draft control handle (2);
- the position control handle (3).
Position control
1. Shift the draft control handle (2) to its
full forward position along the course of
the tractor.
2. With the postural control handle (3),
set the required implement height above
the ground.
The figure “1” on the control panel
corresponds to the RHL transport
position, and the number “9” to the
minimum implement height above the
ground.
If it is necessary to limit maximal lift hight
(for example due to possible breackage of
rear PTO parts), set maximum lift height
with handle (3) and place to it adjustable
stop
(1).
Draft control
Use this control method when working
with mounted implements (plows,
cultivators).
Shift the draft control handle (2) to its
leftmost position along the course of the
tractor (figure “9” on the panel).
Using the position control handle (3) and
(4), link the instrument to the RLL.
Upon entry into the furrow, shift the
lever (3) to its forward position and use
the handle (2) to adjust the desired tillage
depth.
When exiting and subsequently entering
the furrow (while plowing), use only the
positional control lever (3), do not shift the
draft control handle (2).
If, due to uneven density of the soil a
constant tillage depth cannot be achieved,
limit the maximum depth with the draft
control handle (3) (mixed control mode),
memorizing the respective figure on the
control panel.