SHACMAN X3000 X5000 FAST Retarder Proportional Control Valve HB400-60001 G00963 Transmission System Spare Parts
SHACMAN Transmission System Spare Parts X3000 X5000 FAST Retarder Proportional Control Valve HB400-60001 G00963
The HB400-60001 G00963 Retarder Proportional Control Valve is a key hydraulic control component in the FAST transmission hydraulic retarder system used on compatible SHACMAN heavy-duty trucks. During vehicle deceleration, the hydraulic retarder provides auxiliary braking by using transmission-connected hydraulic resistance to absorb part of the vehicle's kinetic energy. The proportional control valve regulates the hydraulic pressure entering the retarder control circuit according to the selected braking demand, allowing the retarder braking force to be increased or reduced progressively. This controlled pressure adjustment helps coordinate the retarder with the transmission and gives the driver a more manageable auxiliary braking response, particularly during long downhill sections and repeated deceleration.
Product Specification
| Product Name |
Retarder Proportional Control Valve |
|---|---|
| Part Number |
HB400-60001 / G00963 |
| Condition | New |
| Origin | China |
| Quality Standard | 100% Tested |
| Quality Certification | ISO, CCC, GSO, CE, SGS, TUV |
| Weight | 1.65 KG |
| Dimensions |
250 mm × 250 mm × 150 mm |
Q1:What components work with this valve?
Typical related components include:
- FAST gearbox
- Hydraulic retarder
- Retarder hydraulic circuit
- Retarder control mechanism
- Hydraulic oil lines
- Transmission control components
Q2:What are possible signs that the proportional valve needs inspection?
Possible indications include:
- Retarder response is inconsistent
- Auxiliary braking force does not change normally
- Retarder engagement is delayed
- Hydraulic pressure is abnormal
- Hydraulic oil leakage around the valve
- Retarder braking effect is weaker than expected
The complete retarder hydraulic circuit should be inspected before replacing the valve.
Q3: What should buyers confirm before ordering?
Confirm:
- HB400-60001
- G00963
- FAST gearbox model
- Retarder model
- SHACMAN truck model
- Hydraulic-port configuration
- Mounting dimensions
- Original valve photos
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