Operation & Maintenance Manual
Section8-Schematics
Dingli Machinery
8-1
Schematics
General
This section contains schematics to be used for locating and correcting most of the operating
problems which may develop. If a problem should develop which is not corrected by listed
corrective actions, technically qualified guidance should be obtained before proceeding with
any maintenance.
Troubleshooting
It should be noted that there is no substitute for a thorough knowledge of the equipment and
related systems.
It should be recognized that the majority of the problems arising in the machine will be
centered in the hydraulic and electrical systems.
The first rule of troubleshooting any circuit that is hydraulically operated and electrically
controlled is to determine if the circuit is lacking hydraulic oil and electrical control power.
This can be ascertained by overriding the bypass valve (mechanically or electrically) so that oil
is available to the function valve, then overriding the function valve mechanically. If the
function performs satisfactorily, the problem exists with the control circuit.
Hydraulic Circuit Checks
The best place to begin the problem analysis is at the power source (pump). Once it is
determined that the pump is serviceable, then a systematic check of the circuit components,
beginning with the control, would follow. For aid in troubleshooting, refer to the
followed
hydraulic schematics and Electric schematics.
Section
8
Summary of Contents for BA14J-AWD
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