Usage Patterns Of Tractor Hydraulic System For Drive Of Operating Parts And Other Elements Of Hydraulically-Powered Coupled Machines And Implements - Belarus 2022.6 Operator's Manual

4.5 Usage patterns of tractor hydraulic system for drive of operating parts and
other elements of hydraulically-powered coupled machines and implements
Hydraulic control system for implements mounted on tractors "BELARUS-2022.6"
provides an opportunity for oil extraction for the coupled implements operation. The follow-
ing variants of oil extraction are possible:
- oil extraction by unilateral and bidirectional hydraulic cylinders;
- replenishment of oil volume in the tank caused by filling of cylinder and the imple-
ment fittings shall be provided after testing the performance of the tractor hydraulic system
with the implement;
- oil extraction for hydraulic motors drives, in this case the implement applicability
shall be stipulated with the tractor plant-manufacturer.
While operating hydraulically-powered machines having hydraulic motors, the hy-
draulic motor drain pipe shall be connected to a special tractor outlet to ensure free oil
drain into the tank past the distribution valve.
ATTENTION: FOR PROVIDING NECESSARY ROTATIONAL SPEED OF THE
COUPLED IMPLEMENT HYDROMOTOR, CERTAIN OIL SUPPLY IS REQUIRED. HY-
DRAULIC FLUID SUPPLY ON THE TRACTOR "BELARUS-2022.6" DEPENDS ON THE
ENGINE RPM, FOR THIS REASON THE IMPLEMENT HYDRAULIC DRIVE SHALL BE
EQUIPPED WITH ITS OWN FLOW ADJUSTING VALVE!
In case of using tractor hydraulic system outputs for the coupled implement service,
it is necessary to ensure the required volume of oil in the tank. Oil extraction by cylinders
of the coupled implement shall not exceed 10 liters.
Excessive oil extraction during coupling causes load increase on the tractor hydrau-
lic system. If using a hydraulic drive for a long time, it is necessary to check the tempera-
ture range in the hydraulic system.
Level check in the tractor hydraulic tank and its refilling shall be carried out with the
operating cylinder retracted plungers on the coupled implement and on the tractor. It is
forbidden to fill in the oil when the coupled implement plungers are put forward as it can
result in the tank overflow and the hydraulic drive elements blowout because of the exces-
sive oil displacement from cylinders at the subsequent lowering (uplift) of the operating
parts.
The main characteristics of tractor "BELARUS-2022.6" HLL for drive of operating
parts and other elements of coupled hydraulically-powered implements and machines are
shown in table 4.5.1.
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2022.6-0000010 OM