Doosan Machinery Maintenance Instructions

  This article explains how to disassemble and disassemble a doosan engine starter motor           Doosan Diagnostic Tool UVIM Support Doosan Excavators High Quality 1. Disconnect the negative (-) cable of the battery first   . 2. Remove the wires from the electromagnetic switch assembly.     3. Remove the mounting bolts of the starter motor (Figure 2, (1)). Remove the starter motor from the flywheel housing.       Disassembly of starter motor 1. Loosen the M8 nut on the electromagnetic switch (solenoid) (Figure 3). Disconnect the wires from the solenoid switch.   2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software  2. Remove the two M4 bolts (Figure 4, (1)). These two bolts are used to lock the rear end cover (Figure, (2)) and the carbon brush holder assembly. (image 3)).     3. Remove the two M5 through-bolts (Figure 4, (4)). Separate the rear end cover (Fig. 4, (2)), field coil (Fig. 4, (5)) including armature assembly (Fig. 4, (6)) from the gear seat (Fig. 4, (7)

  This article mainly introduces how to solve the problem of Doosan excavator DX120 automatically shutting down and then being unable to start.   2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software Fault description     1.DX120 engine automatically stalls during operation     2. The dashboard pops up the "Communication Error" fault menu.     3. Start again, unable to start, and no signs of smoke  4. The fault code retrieved is VC0002-11    Failure cause analysis     1. Out of fuel     2. A circuit failure causes the injector solenoid valve to lose power.     3. ECU hardware or software failure causes control failure   Doosan Diagnostic Tool UVIM Support Doosan Excavators High Quality Troubleshooting process   1. Check the oil level in the fuel tank to determine whether there is oil in the tank   2. Do a static test of the fuel injectors - unplug the oil return pipes of the four fuel injectors, turn the key  switch to the START position, start the engine, obser

  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 Tool UVIM Support Doosan Excavators High Quality       After investigation, it was found tha

This article mainly introduces how to install and remove SCANIA DC13 series engines      Note: Doosan DX420LC-9C/DX500LC-9C is scania DC13 engine.( Authorized by Doosan Corporation） step     1Remove - Generator 1 on the engine, use the battery main switch or disconnect the battery terminals to cut off the power supply.     2. Clean the area if necessary. You may also need to remove the base plate, etc. to facilitate access.   3. Remove the load from the belt drive. See the "Timing gear" chapter.     4. Disconnect positive lead 30 and control lead. 5. Remove the alternator.     09.2023 Scania SDP3 (Diagnostic & Programmer)Truck and Bus 2.58.1           INSTALLATION - GENERATOR ON ENGINE NOTE: Inspect the multi-groove V-belt/belt with belt  tensioner and idler pulley for wear or damage. Replace if necessary.     1. Install the alternator.     2. Install positive lead 30 and control lead.   3. Install the belt drive. See the "Timing gear" chapter.   4.

  This article mainly introduces how to solve the problem that Doosan excavator equipment ccasionally  cannot use the big arm to support the vehicle body.   2023.07 Doosan DMS-5 Data Monitoring System Diagnostic Software A phenomenon When the right control handle is pressed down, occasionally the vehicle body cannot be supported.     B Inspection Essentials 1. Check whether the posture supporting the car body is correct. The correct posture is: the big and  small arms meet each other at a 90-degree angle, the left and right control handles are pressed down at  the same time, and the big and small arms are used to support the car body.   2. Check whether the pilot accumulator is working properly. If the engine does not start, turn the start  switch to ON and operate the left and right operating handles. If the pressure of all movements can be  released, it means that the accumulator is working normally.      3. Check whether the BOOM overload relief valve and main relief va

   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 pressure was  10.5BAR, while the rear pump pressure was 270BAR.       4. After replac