Doosan DX350LC hydraulic Excavator hydraulic comtrol unit disassembly Instructions

this article describesDoosan DX350LC hydraulic Excavator HYDRAULIC CONTROL UNIT Disassembly Instructions


2020 Doosan Daewoo Excavator Operation and Repair Manual PDF


IMPORTANT


Different versions in relation to the position of the cable harness are possible.

In this connection,pay attention to the Specifications of the Vehicle Manufacturer.














1. Figure 78,shows complete control unit.


 





2. Mark the installation position of different covers,the








thousing and the cable harness with the valve housing.


3. Loosen socket head screws.

4. Separate duct plate,1st gasket,intermediate plate and 2nd gasket from the valve housing.

(S)Box spanner (Torx TX-27)-5873042002
Doosan Diagnostic Tool UVIM Support Doosan Excavators High Quality







5. Remove retaining clip.


6. Loosen socket head screws.

7. Separate cover from housing and cable harness. (S)Box spanner (Torx TX-27)-5873042002





8. Disassemble opposite cover.

9. Disconnect pressure regulator and remove cable hamess.







10.Loosen socket head screws,remove fixing plate and pressure regulators (3x).

(S)Box spanner (Torx TX-27)-5873042002









11. Loosen two socket head screws and locate housing provisionally,using adjusting screws.(Housing is spring loaded).Then loosen remaining socket and screws.

(S)Box spanner (Torx TX -27)-5873042002

(S)Adjusting screws -5870204036










12.Separate housing from valve housing by loosening adjusting screws uniformly.

(S)Adjusting screws -5870204036









13.Remove components(Figure 87).

14. Remove opposite pressure regulators,housing and components accordingly (Figure 88).




2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software

评论

发表评论

此博客中的热门博文

How to Replace Doosan DA-30-5 Truck Filter

图片
  This article mainly introduces how to replace the Doosan DA-30-5 truck filter   2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software NOTE ： Avoid spillage and   use a su itable container.   Used fuel   must be disposed of as speciied   in   nationaI   and   inter-   national   law   1. Unscrew   the   fi lter   cover   with   a   closed   tool   with   hexagon driver , e.g. socket , so   as   not   to   damage   the   fi lter   cover . 2. Lift   out   the   fi lter   cover   and   fi lter   element .   The   fi lter   housing will drain automatically.   This applies only   if the fuel   tank   is lower than the engine. Otherwise th e fuel shut-off cock must   be   closed   fi rst . Doosan Diagnostic Tool UVIM Support Doosan Excavators High Quality   3. ...
阅读全文

How to Solve the Problem of Intermittent Alarm and Speed limit of 1400RPM When the DX60-9C Excavator Engine is Working

图片
  This article mainly introduces how to solve the problem of intermittent alarm and speed limit of 1400RPM when the DX60-9C excavator engine is working.   2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software     1) Check the instrument panel fault code to display E001382-31C engine speed limit 140ORPM. ;       2) Query the meaning of the code through the fault code table: fuel filter element pressure sensor  identification error;       3) Check the voltage value of the three wires of the fuel filter element pressure sensor. Under normal  conditions, it should be: 0.85W4.9V/0.85L OV/0.85GR 2.3V when normal, when the engine alarms ov.       4) By comparing with the new car, we found that the 0.85GR line should always be around 2.4V, but  when the fault code appears on this car, it is always OV, so it is suspected that the terminal is short- circuited to ground.     Doosan Diagnostic Too...
阅读全文

How to Solve the Walking Failure of Doosan DH220-V Excavator

图片
   This article mainly introduces how to solve the walking fault of Doosan DH220-V excavator   Doosan Diagnostic Tool UVIM Support Doosan Excavators High Quality   When the machine is walking in a straight line, the right joystick remains unchanged and the left side  returns to the neutral position (i.e., stops). At this time, the right crawler continues to walk, while the  left crawler slides 800-1000mm before stopping.     1. Checking essentials:   1. After analyzing the hydraulic system, the fault Joints and motors, etc.       02. Measure the system pressure. When the boom is raised to the maximum limit so that the pressure  reaches the maximum, the measured system pressure is 330 BAR, indicating that there is no problem  with the pump.     Doosan Diagnostic Tool DDT G2 SCAN( ECU ,DCU)Software 2016   3. Apply external braking to the walking system. It was also observed that the front pump p...
阅读全文