- CN
| Parameter | Specification |
|---|---|
| Product Name | Hydraulic Pressure Sensor |
| COGENG Part Number | 2547-9045 |
| OEM Equivalent | Doosan 2547-9045 |
| Product Type | Hydraulic Pressure Sensor |
| Sensor Type | Piezoresistive pressure transducer |
| Output Type | 4-20 mA or 0.5-4.5V (application dependent) |
| Application | Hydraulic system pressure monitoring |
| Compatible Models | Doosan DH220-5, DH225-7 Excavators |
| Material | Iron + Rubber (seals: NBR / FKM) |
| Packing | PP bag inside, carton box outside |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Supply Capacity | 500 PCS |
| Brand | Part Number |
|---|---|
| COGENG | 2547-9045 |
| Doosan | 2547-9045 |
| Interchange | 2547-9046, 2547-9047, 2547-9048, 400410-00051A |
| Parameter | Specification |
|---|---|
| Model | Doosan DH220-5 Excavator |
| Type | 22-ton Crawler Excavator |
| Series | Dash 5 |
| Engine | Doosan DB58TI (or equivalent) |
| Operating Weight | 21,000 - 23,000 kg |
| Hydraulic Pressure | 330 bar (4,785 psi) |
| Parameter | Specification |
|---|---|
| Model | Doosan DH225-7 Excavator |
| Type | 22.5-ton Crawler Excavator |
| Series | Dash 7 |
| Engine | Doosan DL06 (or equivalent) |
| Operating Weight | 22,000 - 24,000 kg |
| Hydraulic Pressure | 330 bar (4,785 psi) |
| Application | Pressure Range | Function |
|---|---|---|
| Main Pump Pressure | 0-350 bar | Monitors main hydraulic pump output |
| Implement Pressure | 0-350 bar | Monitors boom/arm/bucket circuits |
| Pilot Pressure | 0-50 bar | Monitors pilot control pressure |
| Swing Circuit | 0-350 bar | Monitors swing brake/pressure |
| Travel Circuit | 0-350 bar | Monitors travel motor pressure |
| Attachment Circuit | 0-350 bar | Monitors auxiliary hydraulic pressure |
| Step | Action | Critical Note |
|---|---|---|
| Preparation | ||
| 1 | Park machine on level surface, lower implements | Safety first |
| 2 | Shut off engine, remove key | Lock-out/tag-out |
| 3 | Relieve hydraulic pressure | Cycle controls with engine off |
| 4 | Allow machine to cool | Prevent burns |
| 5 | Locate faulty pressure sensor | Consult service manual |
| Removal | ||
| 6 | Clean area around sensor | Prevent contamination |
| 7 | Disconnect electrical connector (3-pin) | Inspect pins for damage |
| 8 | Place rag under sensor | Expect hydraulic oil seepage |
| 9 | Remove old sensor (19mm or 22mm wrench) | Note orientation |
| 10 | Clean threads in manifold | Remove old sealant |
| Installation | ||
| 11 | Apply thread sealant (if specified) | For NPT threads only |
| 12 | Install NEW O-ring / sealing washer | CRITICAL - DO NOT reuse |
| 13 | Install new sensor hand-tight, then torque | 25-35 Nm (18-26 ft-lbs) |
| 14 | Reconnect electrical connector | Ensure fully seated, click |
| Final | ||
| 15 | Start engine, check for leaks | Inspect around threads |
| 16 | Cycle hydraulic functions | Bleed air if needed |
| 17 | Connect Doosan diagnostic tool | Clear DTCs |
| 18 | Verify sensor reading | Compare to expected pressure |
| 19 | Test machine operation | Verify normal function |
Contact COGENG
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