708-1L-00471 Excavator Hydraulic Pump Repair Kit PC128US Main Pump Seal Kit

Product Description

The installation quality of O-ring has an important impact on its sealing performance and service life. Leakage problems are often caused by poor installation. During installation, O-rings are not allowed to be scratched, installed incorrectly, or twisted. Before assembly, the sealing groove and sealing mating surface must be strictly cleaned; At the same time, apply grease to the surface to be passed during O-ring assembly. In order to prevent the O-ring from being cut or scratched by sharp edges such as sharp corners and threads during installation, a lead-in angle of 15O ~ 30o shall be reserved at the installed shaft end and hole end. When the O-ring needs to pass through the external thread, a special thin-wall metal guide sleeve shall be used to cover the external thread; If the O-ring needs to pass through the orifice, the orifice shall be inverted into the corresponding bevel shape to prevent the O-ring from being scratched. The bevel angle of the groove is generally a = 120o ~ 140o.

We can supply you all kinds of Hydraulic seal kits

1. BOOM CYLINDER SEAL KIT

2. ARM CYLINDER SEAL KIT

3. BUCKET CYLINDER SEAL KIT

4. CENTER JOINT KIT

5. ADJUSTER SEAL KIT

6. LEVER SEAL KIT / PILOT VALVE SEAL KIT

7. MAIN PUMP SEAL KIT

8. TRAVEL MOTOR SEAL KIT

9. SWING MOTOR SEAL KIT

10. REGULATOR VALVE SEAL KIT /PLUNGER PUMP SEAL KIT

11. CONTROL VALVE SEAL KIT

12. GEAR PUMP SEAL KIT

13. PUMP GASKET