To Next PageTo Next PageWhat does *ERR error code mean on Hitachi EX1200-7 Excavators?
The *ERR error code could be caused by a poor sensor connection. Try removing and refitting the pod connection cable. It could also indicate corrupted coding, in which case you should access the factory setup and perform a default reset using pin 6759.
Why is the pressurizer on my Hitachi Excavators running at full speed and noisy?
The pressurizer might be running at full speed due to several reasons. It could be that the filter is blocked, requiring servicing. Another cause might be an open door or window; ensure all doors and windows are securely shut. Inadequate cabin sealing may also be the reason, in which case you should perform a pressure test and seal any leak points. A blocked sense pipe or a damaged internal sensor, which requires controller replacement, could also be the cause.
What to do if my Hitachi EX1200-7 Excavators display is blank?
If the display is blank, it could be due to a poor power supply. Check the mains supply fuse and ensure the voltage is correct. Alternatively, the controller may have failed, requiring a replacement of the monitor.
Why does the filter on my Hitachi EX1200-7 Excavators block so quickly?
A filter might be blocking quickly due to a defective cabin sealing. Perform a pressure test procedure and seal any leak points as required. Another possible reason is a failed pre-cleaner, in which case you should check its operation and replace it if necessary.
What causes the low pressure alarm on Hitachi Excavators?
The low pressure alarm may be triggered by several factors. Check if any door or window is open and ensure they are securely shut. Inadequate cabin sealing can also cause this; perform a pressure test procedure and rectify the cab sealing. Additionally, verify that the pressurizer is operating correctly by ensuring the correct voltage (12V or 24V) is supplied to the pressurizer motor pin A. A blocked pressure sense tube or a poor power supply (check the 20A mains fuse and correct voltage) could also be responsible. Finally, check the earth continuity at motor pin B to rule out a poor earth connection.
What does it mean when my Hitachi Excavators controller is showing 0.0 pressure?
If the controller displays 0.0 pressure, the fresh air filter might be blocked. Check the filter condition and replace it if required.
What does the *Check filter alarm mean on Hitachi EX1200-7 Excavators?
The *Check filter alarm indicates a service hour timeout. Access the Check Runtime menu and reset the hours using the 7597 code.
What to do if there is a temperature or CO2 error on Hitachi Excavators?
If you encounter a temperature or CO2 error, it might be due to a disconnected sensor. Fit the sensor or disable it via the site access CO2 and/or temperature menu.
General| Brand | Hitachi |
|---|---|
| Model | EX1200-7 |
| Category | Excavators |
| Language | English |
Guidance for experienced technicians on using the manual effectively.
Lists other materials to consult alongside this manual for comprehensive information.
Explains the structure and content of the technical and workshop manuals.
Details the format and information contained within the page numbers.
Explains safety symbols and signal words used to warn of hazards.
Lists SI units and provides conversion factors to other common units.
Identifies safety alert symbols and their importance for injury prevention.
Defines signal words (DANGER, WARNING, CAUTION, IMPORTANT, NOTE) and their hazard levels.
Outlines general safety instructions for operating and maintaining the machine.
Advises on essential items and procedures for handling emergencies like fires.
Specifies necessary personal protective equipment for safe operation.
Warns about hearing impairment from noise and recommends hearing protection.
Emphasizes the importance of daily walk-around inspections before operation.
Provides safety guidelines for maintaining a clean and safe operator's cab.
Details safe practices for mounting and dismounting the machine.
Explains how to adjust the seat for optimal control operation and visibility.
Steps to take before rising from or leaving the operator's seat.
Stresses the importance of wearing a seat belt for protection during potential overturns.
Covers safe procedures for moving and operating the machine, including bystander safety.
Mandates operation only from the designated operator's seat to prevent accidents.
Provides safety precautions for using starting fluid.
Outlines safe practices for jump-starting the machine's engine.
Prohibits unauthorized riders to prevent injury and ensure operator visibility.
General safety advice for job site investigation and operation.
Advises on assessing ground conditions and site configuration before work begins.
Recommends installing an OPG guard in areas with falling stone hazards.
Warns against installing attachments exceeding machine weight limits.
Emphasizes using signals for coordinated operations involving multiple machines.
Advises checking undercarriage orientation relative to the operator for safe travel.
Details safe driving practices, especially on inclines and slopes, to prevent tipping.
Provides procedures to prevent the machine from rolling away when parked or unattended.
Warns about hazards related to backing up and swinging the upperstructure.
Advises on establishing safety perimeters to keep people away from the machine's operating zone.
Prohibits lifting or swinging the bucket over persons or vehicle cabs.
Guides on safe positioning when working near excavations to prevent collapse.
Details critical measures and warnings to avoid machine tipping, especially on grades.
Warns against undercutting high banks due to collapse risk.
Advises caution when digging near underground utilities and operating near overhead obstacles.
Stresses maintaining safe distances from overhead electrical lines to prevent electrocution.
Provides guidance on actions to take during lightning storms while operating the machine.
Outlines safety measures for lifting and handling loads, including attachment storage.
Advises on protecting eyes and body from flying debris, especially during operations.
Details the procedure for safely parking the machine on level ground.
Provides precautions for handling flammable fluids like fuel to prevent fires.
Covers essential safety steps for loading, unloading, and transporting the machine.
Lists critical safety procedures to follow before and during maintenance.
Advises on using 'Do Not Operate' tags to prevent accidental machine movement during service.
Details safe methods for supporting the machine or its components during maintenance.
Warns about entanglement risks with rotating machine parts and recommends protective measures.
Highlights hazards associated with high-pressure systems and flying parts, like track adjusters.
Advises on safely storing and replacing attachments to prevent them from falling.
Warns about severe burns from hot engine parts, fluids, and steam.
Recommends periodic replacement of rubber hoses due to aging and abrasion risks.
Details the severe dangers of high-pressure fluid injection and safe handling practices.
Covers preventing fires caused by oil leaks, faulty electrical connections, and frayed wires.
Advises on daily cleaning to remove flammable materials that can cause fires.
Emphasizes checking the engine stop function daily to aid fire fighting.
Notes the importance of intact heat shields to prevent fires.
Outlines the procedure for checking the emergency engine stop switch function.
Provides instructions on how to safely evacuate the machine during a fire.
Warns about the dangers of engine exhaust fumes and recommends ventilation.
Details safety measures required for welding and grinding operations on the machine.
Warns against heating near pressurized fluid lines due to flammable spray risks.
Advises on safe practices when working with lines containing flammable fluids.
Provides precautions for handling high-pressure accumulators and gas dampers to prevent explosion.
