Belarus 1025/1025.2/1025.3 Section E.Preparation for operation
E8
Control of rear mounting unit
The hydraulic system for control of three-
point RMU is equipped with standalone
power regulator (RMU without hydraulic lift)
or- regulator-distributor, built-in the
monoblock unit, that provide system
operation in the following modes:
• power control;
• position control;
• mixed control;
• height control.
Efficient use of these regimes depends on
machines being ganged up and
cultivating conditions.
Position control
It provides accurate and sensitive control of
the connecting equipment position above
the ground, such as sprayer, land leveler,
and others. Position control may be used
with land tillage machines, half-mounted
ploughs with remote cylinders, etc.
Still, this type of control is not
recommended to be used on uneven
fields. Position control on the field with
uneven terrain may be the cause constant
jerks arising due to quick vertical motions
of the mounted implement.
Power control
This is the most suitable mode for
operating mounted and half-mounted
implements with tools put deep in soil. The
system is sensitive to traction effort
change (caused by change of soil
resistance, or depth of soil tillage) via the
central tie-rod of the mounted mechanism.
The hydraulic system responds to such
changes by lifting or lowering the
implement so as to maintain the given
traction effort constant. The system
responds to compression-extension
effort in the central tie-rod.
Tractor operation with SARG
without hydraulic lift
1. Switch on oil pump.
IMPORTANT! The oil pump drive of the
hydraulic system is not synchronized. If
the pump can not be switch on with
diesel shut down, for a short time use
starter to turn though diesel crankshaft
to turn pump drive shaft, and switch on
the pump.
2. Turn hand wheel (2) to control
correction speed (sensitivity) of the
system anti clockwise to the end.