1915619 191-5619 Hydraulic cylinder sealing kit standard size of 336D L 390D

1. Quick Details of  seal 1915619:

2. 1915619 parts on group :

3.  1915619 picture:

4. Service part number :

 
5. FAQ

Q: What construction machine does part number 1915619 cylinder seal kit fit for?
A: Part number 1915619 cylinder seal kit is developed for excavator arm cylinder overhaul and hydraulic oil leakage repair.

Q: What materials are included in the 1915619 cylinder seal kit?
A: 1915619 cylinder seal kit is made of PU rod seals, NBR O-rings, PTFE back-up rings and fabric reinforced rubber piston seals, offering outstanding extrusion resistance and long service life.

Q: What is the main function of this arm cylinder seal kit?
A: It seals the reciprocating gaps inside the arm hydraulic cylinder, preventing cross-leakage between cylinder chambers and blocking dirt and gravel from damaging the cylinder inner surface.

Q: Where is this seal kit mounted on the excavator?
A: All sealing components are installed inside the arm cylinder, covering piston and rod sealing positions of the stick hydraulic cylinder.

Q: What working loads can this seal kit handle?
A: It can withstand heavy reciprocating pressure and impact loads when the excavator stretches and retracts the arm during digging operations.

Q: What product category does this spare part belong to?
A: It belongs to cylinder seal kit, a complete set of sealing spare parts specially designed for excavator stick cylinder maintenance.

Q: Can technicians reuse old seals when rebuilding the arm cylinder?
A: It is not advisable. Old seals will develop fatigue cracks and permanent compression deformation after repeated operation, oil leakage will happen quickly after reassembly.

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