\nHow to Use the Monitoring Function of Hitachi MPDr Diagnostic Software<\/a><\/p>\n
Steps to Perform the Diesel Engine Fluid Pipe Leak Test<\/h3>\n\n- Select the Diesel Engine Fluid Pipe Test:\n
\n- Navigate to the “Diesel Engine Fluid Pipe” option in the diagnostic software.<\/li>\n<\/ul>\n<\/li>\n
- Start the Leak Test:\n
\n- Click the Start button.<\/li>\n
- The test will run as long as “Running” is displayed on the screen.<\/li>\n
- Once the leak test is completed, click the Stop button to end the operation.<\/li>\n
- To cancel the test mid-operation, click Stop at any time.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
![\"\"](\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/01\/HITACHI-ZX-6-Excavator-Diesel-Engine-Fluid-Pipe-Leak-Test-Guide-1.jpg\")
![\"\"](\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/01\/HITACHI-ZX-6-Excavator-Diesel-Engine-Fluid-Pipe-Leak-Test-Guide-2.jpg\")
<\/h3>\nDEF\/AdBlue Piping Leak Test Instructions<\/h3>\nImportant Notes:<\/h4>\n\n- The DEF\/AdBlue piping leak test must not be performed while the engine is running.<\/li>\n
- Ensure the key switch is turned ON but do not start the engine.<\/li>\n
- This test cannot be performed if:\n
\n- The temperature of the DEF\/AdBlue tank or supply module is below \u20135\u00b0C.<\/li>\n<\/ul>\n<\/li>\n
- Allow the machine to warm up so that the DEF\/AdBlue tank and supply module reach optimal temperatures.<\/li>\n<\/ul>\n
Procedure:<\/h3>\n\n- Turn the Key Switch ON:\n
\n- Ensure the engine remains off.<\/li>\n<\/ul>\n<\/li>\n
- Execute the Test:\n
\n- Press the Execute button in the diagnostic tool.<\/li>\n<\/ul>\n<\/li>\n
- Monitor the Pump Operation:\n
\n- The DEF\/AdBlue supply module pump will activate.<\/li>\n
- Pressure will increase to 900 kPa.<\/li>\n<\/ul>\n<\/li>\n
- Inspect for Leaks:\n
\n- Check all DEF\/AdBlue lines and the dosing module for leaks.<\/li>\n<\/ul>\n<\/li>\n
- End the Test:\n
\n- Once leak checks are complete, press the Stop button.<\/li>\n
- Turn the key switch OFF to finish the procedure.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
- \n
- Navigate to the “Diesel Engine Fluid Pipe” option in the diagnostic software.<\/li>\n<\/ul>\n<\/li>\n
- Start the Leak Test:\n
- \n
- Click the Start button.<\/li>\n
- The test will run as long as “Running” is displayed on the screen.<\/li>\n
- Once the leak test is completed, click the Stop button to end the operation.<\/li>\n
- To cancel the test mid-operation, click Stop at any time.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n <\/h3>\n
DEF\/AdBlue Piping Leak Test Instructions<\/h3>\n
Important Notes:<\/h4>\n
- \n
- The DEF\/AdBlue piping leak test must not be performed while the engine is running.<\/li>\n
- Ensure the key switch is turned ON but do not start the engine.<\/li>\n
- This test cannot be performed if:\n
- \n
- The temperature of the DEF\/AdBlue tank or supply module is below \u20135\u00b0C.<\/li>\n<\/ul>\n<\/li>\n
- Allow the machine to warm up so that the DEF\/AdBlue tank and supply module reach optimal temperatures.<\/li>\n<\/ul>\n
Procedure:<\/h3>\n
- \n
- Turn the Key Switch ON:\n
- \n
- Ensure the engine remains off.<\/li>\n<\/ul>\n<\/li>\n
- Execute the Test:\n
- \n
- Press the Execute button in the diagnostic tool.<\/li>\n<\/ul>\n<\/li>\n
- Monitor the Pump Operation:\n
- \n
- The DEF\/AdBlue supply module pump will activate.<\/li>\n
- Pressure will increase to 900 kPa.<\/li>\n<\/ul>\n<\/li>\n
- Inspect for Leaks:\n
- \n
- Check all DEF\/AdBlue lines and the dosing module for leaks.<\/li>\n<\/ul>\n<\/li>\n
- End the Test:\n
- \n
- Once leak checks are complete, press the Stop button.<\/li>\n
- Turn the key switch OFF to finish the procedure.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
- Turn the Key Switch ON:\n