ZX240-3 Electronic Fuel Injection Control Valve

5 month ago

5 0 

Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

Hitachi Excavator ZX200-3/ZX210-3/ZX240-3 Control Valve

KYB Main Control Valve

Part No.: 4606144

Our company supplies the following series of spare parts:

1. Travel System (Motor, Gearbox) and Components

2. Swing System (Motor, Gearbox) and Components

3. Hydraulic Pump Assembly and Spare Parts

4. Swing Bearing/Slew Ring

5. Cylinders: Arm/Boom/Bucket Cylinders

6. Undercarriage Parts:

• Steel Track Shoes & Pads

• Rubber Track Shoes & Pads

• Track Link Assemblies

• Track Rollers, Carrier Rollers, Sprockets, Idlers, Track Adjusters, etc.

ZX240-3 Electronic Fuel Injection Control Valve: Technical Overview

1. Key Function & Role

TheElectronic Fuel Injection Control Valve(EFI Valve) is a critical component in theHitachi ZX240-3 excavator's engine management system, responsible forprecisely regulating fuel deliveryto the combustion chamber. Unlike traditional mechanical systems, it enables:

• Real-time fuel-air ratio adjustmentsto optimize power output and emissions.

• Integration with the ECU (Engine Control Unit)for adaptive responses to load changes (e.g., during excavation or heavy lifting).

• Compliance with Tier 3/Stage IIIA emission standards(depending on production year).

2. Technical Specifications

【表格】

Parameter Details (Typical)

Operating Pressure 150–300 bar (dependent on engine speed and load)

Response Time <10 ms (critical for transient load handling)

Voltage Supply 12V/24V DC (matches excavator electrical system)

Flow Rate 0.5–3.0 L/min (adjustable via PWM signal from ECU)

Material High-grade stainless steel (valve body), corrosion-resistant coatings (internal seals)

Mounting Interface OEM-specific (matches Hitachi ZX240-3 fuel rail assembly)

3. Failure Modes & Diagnostics

Common issues include:

• Sticking Valve: Caused by debris or degraded fuel filters, leading torough idlingorstalling.

• Electrical Faults: Loose connectors may triggerengine warning lightsorlimp mode.

• Internal Leakage: Seal wear results inexcessive fuel consumptionorblack smoke.

Diagnostic Tools:

• Onboard ECU Readings: MonitorP0191(Fuel Rail Pressure Sensor) orP0261(Injector Circuit Low) codes.

• Pressure Testing: Use afuel rail pressure gaugeto verify valve output against OEM specs.

• Flow Rate Verification: Compare actual flow (via test bench) with the table above.

4. Replacement Procedure

Step-by-Step Guide:

1. Isolate Power: Disconnect battery and relieve fuel system pressure.

2. Remove Old Valve:

• Loosen thehigh-pressure fuel lineconnected to the valve.

• Unscrew the valve using atorque wrench(OEM-specified torque: 25–30 Nm).

3. Install New Valve:

• Applythread sealantto prevent leaks.

• Tighten to specifications and reconnect the fuel line.

4. Post-Replacement Checks:

• Bleed air from the fuel system.

• Run the engine at idle and monitor for leaks or abnormal noise.

• Use asmoke machineto verify no vacuum leaks in the intake system.

5. Maintenance Best Practices

• Fuel Quality: Useultra-low sulfur diesel (ULSD)to prevent internal corrosion.

• Filter Replacement: Change theprimary fuel filterevery 250 hours (or sooner in dusty environments).

• Software Updates: Periodically update the ECU firmware via Hitachi’sZaxisLinkdiagnostic tool.

7. Cab Assembly, Cab Glass, Cab Door, Cab Lock

You May Also Like

1606

Stationary scissor lift

1156

PSA Oxygen Plant Containerized

1002

Stand up zipper bag making machine

1000

Semi Double Scale Weight Packing Machine.mp4

638

Tea bag packing and boxing .mp4

619

Cashew vacuum packing machine

617

401-00060C K3V112DT-HNOV 2401-9158 K3V112DTP Hydraulic Main Pump For Doosan DX210W-7 DX220W-7 Excavator1

607

50-250PVC给水管或者PVC排水管生产线都可以.mp4

607

High Speed Multifunction Bag Making Machine

596

Granule packing machine for 4 side sealing bag

Bossgoovideo.com Contact Now

If you are interested in the product, contact Bossgoovideo.com for more information

*To:: Ningbo Hengnuo Hydraulic Drive Co.,Ltd

*Message:

Submit

 Disclaimer :

The information of Bossgoovideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of Bossgoovideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation. If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.

Suppliers

Ningbo Hengnuo Hydraulic Drive Co.,Ltd

Audited supplier

3 year

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

Contact now