Belarus 2022.6 Operator's Manual page 214

Table 6.14.1 contunued
Failure, external manifestation,
cause
Overheating of HLL oil in course of tractor operation with an implement with hydrau-
Wrong choice of hydraulic motor for
the implement. Hydraulic motor oil
consumption should be by 10...15%
below pump output flow at engine
operating speed
Implement delivery pipe or drain
pipe have restricted flow passages
At low volumetric efficiency of agri-
cultural machine hydraulic motor
Oil drain from hydraulic
through active section of distribution
valve
HLL pressure loss (RLL can not be lifted, pressure loss or no pressure of pressure at
external outputs), hydraulic system overheating does not occur
Locking of differential pressure con-
trol valve (overload relief valve) in
access cap of integrated unit)
Deadlock of differential pressure
control valve (overflow valve) in a
regulatory section (if hydraulic unit
RP70-1523.1 is installed)
Spontaneous lowering of RLL (lowering without a command received from the in-
Deadlock of the lowering valve of a
regulatory section ЕНR -23LS (if in-
tegrated unit BOSCH is installed)
Deadlock of the lowering valve of a
regulatory section (if hydraulic unit
RP70-1523.1 is installed)
lic oil motor coupled
Adjust engine rpm or change hydraulic motor or in-
stall hydraulic fluid cooler on hydraulic motor drain
Replace pipes by the recommended ones according
to subsection 4.5 "Features of tractor hydraulic sys-
tem use for actuation of mover working attachments
and other components of coupled hydraulically op-
erated implements and units" of this operation man-
ual
Replace worn-out hydraulic motor
motor Ensure oil drain from hydraulic motor through tractor
spare drain
Perform the following actions:
- rinse the valve
- check pressure at any external output, which shall
be from 18 to 20 MPa
- valve rinsing should be carried out at the dealers
center by specially trained personnel
To eliminate the failure contact your dealer.
strument panel or remote control buttons)
Failure can be eliminated only by a dealer in a ser-
vice centre in the following manner:
- dismount the electro hydraulic section (EНR), by
unscrewing the nuts of the stud-bolts of the integral
unit. During dismounting procedure pay attention to
integrity of the O-rings and the shuttle valve (OR
VALVE), both in the regulatory section and in the dis-
tribution valve neighboring section;
- disassemble the lowering valve ЕНR-23LS and
rinse its components;
- put the electro hydraulic section (EНR) back in its
place
To eliminate the failure, contact your dealer
Troubleshooting
214
2022.6-0000010 OM