MTZ 1220.1/1220.3
Section D. Construction and Operation
D48
RHL Control Panel
Fig. D-36. RHL control panel
1 – lowering speed control handle (clockwise – quicker, anti-clockwise – slower); 2 – handle for selecting the
control method (clockwise – position one, anti-clockwise – draft one, intermediate – combination control); 3 –
handle for control of limitation of the hitch linkage lifting (clockwise – maximum lifting, anti-clockwise – mini-
mum lifting); 4 – handle for controlling the soil treatment depth (clockwise – less depth, anti-clockwise – more
depth); 5 – hitch linkage lifting indicator (red); 6 – hitch linkage lowering indicator (green); 7 – hitch linkage
control handle (upwards – lifting, downwards – lowering, when pressing the handle more in the bottom posi-
tion – deepening the implement during the soil treatment, intermediate position – disabled); 7a – interlock
switch (transportation) – mechanic interlock of the handle (7) in the top position by shifting the switch to the
right; 8 – diagnostic alarm (see “Fault Diagnostics”), 9 – damping button, 10 – damping indicator.
The procedure of control of the rear hitch
linkage is as follows:
• depending on the character of job, set
the control method by means of the
handle (2) (Fig. D-36);
• set the treatment depth and height of
the implement lifting in the transporta-
tion position by means of the handles
(4) and (3), respectively.
• to lower the hitch linkage, shift the han-
dle (7) to the bottom fixed position. In
this case, the indicator (6) goes out.
When performing the job, it is necessary
to set the optimum conditions of operation
of the mounted implement:
• combination of the control methods by
means of the handle (2);
• lowering speed by means of the handle
(1);
• soil treatment depth by means of the
handle (4).
In case of the draft control, the system lim-
its automatically the correction frequency
to Hz in average.
In case of intense heating of the hydraulic
system oil, the correction frequency
should be reduced by shifting the handle
(2) to the position method of control and
the handle (1) – towards the turtle.
Содержание 1220.1
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