• Hot sale PC300-5 PC400-5 709-90-52203 excavactor Main Relief Valve
  • Hot sale PC300-5 PC400-5 709-90-52203 excavactor Main Relief Valve

Hot sale PC300-5 PC400-5 709-90-52203 excavactor Main Relief Valve

  • Negotiable Get Latest Price
  • PC300-5/PC400-5
  • Guangdong, China
  • 1 Piece / Pieces
  • MoneyGram Credit Card
  • 10000 Piece / Pieces per Month
  • Guangzhou/Shanghai/Lingbo
Product Details
Standard or Nonstandard:Standard Structure:Control Pressure:High Pressure
Power:Hydraulic Material:Forged Temperature of Media:High Temperature
Packaging Details Standard export carton package or according to customer's request.
Product Description


Hot sale PC300-5 PC400-5 709-90-52203 excavactor Main Relief Valve

Product description

1. Model No:PC300-5/PC400-52.Part No.:709-90-52203

3. relief valve

4.Application:excavactor spare part

5.Over 10years exporting experience

6.Owned factory supply EX price

7. Competitive price ,large stocks

Relief valve failure and maintenance:

ConditionFaultSolution and maintenance methods
1.Pressure is too high or too low1. Pressure set incorrectly 2. stress disorder 3. carry on the valve is not properly 4. adverse balance piston 5. spring force is too low 6. Valve seat, balance piston, worn or there is dust1. correct setting 2. check pressure gauge 3. Remove valve reorganization or Exchange valve, remove the adjustment bolt, 4. tapping valve several times 5. Remove upper cover jiecha valve core dust and other debris blocking the holes of 6. Replace spring 6. cleaning or updates
2. Pressure not settled1. balance piston action bad 2. mention moving valve not settled 3. mention moving valve exception 4. oil in the has air 5. mention moving valve block has dust processing1. check valve core of hole whether has dust, valve core of action whether sleek, and the spring of State 2. replaced mention moving valve, check oil whether dirty 3. excluded air
3.Tiny vibrations, (ill an abnormal sound when)1. Valve anomalies 2. drain air 3. resonance control valve 4. adverse fuel tank tubing 5. flow rate too high 6. outlet there is back pressure1. replace the actuator 2. check hydraulic oil pollution 3. displace air

Our advantage

1.With advanced produce equipment and technology

2.With strict quality control system

3.Fast delivery with huge stock

4.High quality long life

5.With 3 months warranty

6.Excellent aftermarket service

7.Standard international export package/as your need

More information about production

More information about certification

Hope our excellent quality and competitive price and quick delivery will attract your attention!