315C Excavator Hydraulic System Caterpillar


Cylinders (Boom, Stick and Bucket)

Usage:

315C AKE



Illustration 1g00786719

(1) Rod end port

(2) Piston

(3) Tube

(4) Snubber

(5) Rod

(6) Boom cylinder

(7) Head end port

(8) Snubber

(9) Stick cylinder

(10) Bucket cylinder




Illustration 2g00786720

Snubber operation (extending rod)

(4) Snubber

(11) Passage

When boom cylinders (6) or stick cylinder (9) moves close to the end of the extension stroke, passage (11) is restricted by snubber (4). The movement of piston rod (5) slows down before the piston rod stops.




Illustration 3g00786721

Snubber operation (retracting rod)

(8) Snubber

(12) Passage

When stick cylinder (9) moves close to the end of the retraction stroke, passage (12) is restricted by snubber (8). The movement of the piston rod slows down before the piston rod stops. The shock load is absorbed when the piston is slowed down.

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