Usage Patterns Of Tractor Hydraulic System For Drive Of Operating Parts And Other; Elements Of Hydraulically-Powered Coupled Machines And Implements - Belarus 1523.5 Operator's Manual

1523.5-0000010 OM

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-1523.5" provides
an opportunity for oil extraction for the coupled implements operation. The following vari-
ants 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 implement
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 hydraulic
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. HYDRAULIC FLU-
ID SUPPLY ON THE TRACTOR "BELARUS-1523.5" 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 8 liters.
Excessive oil extraction during coupling causes load increase on the tractor hydraulic sys-
tem. If using a hydraulic drive for a long time, it is necessary to check the temperature
range in the hydraulic system.
Level check in the tractor hydraulic tank and its refilling shall be carried out with the oper-
ating cylinder retracted plungers on the coupled implement and on the tractor. It is forbid-
den 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 excessive oil
displacement from cylinders at the subsequent lowering (uplift) of the operating parts.
The main characteristics of tractor "BELARUS-1523.5" HLL for drive of operating parts and
other elements of coupled hydraulically-powered implements and machines are shown in
table 4.8.
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