LINER 4492075 - Caterpillar

Illustration 1 g01335559
(1) Rod end port
(2) Head end port
(3) Boom cylinder
(4) Tube
(5) Rod
(6) Snubber
(7) Piston
(8) Stick cylinder
(9) Snubber
(10) Bucket cylinder
Illustration 2 g01335561
Snubber operation
(6) Snubber
(11) Passage When boom cylinders (3) or stick cylinder (8) moves close to the end of the extension stroke, passage (11) is restricted by snubber (6). The movement of the piston rod slows down before the piston rod stops.
Illustration 3 g01335562
Snubber operation (retracting rod)
(9) Snubber
(12) Passage When stick cylinder (8) moves close to the end of the retraction stroke, passage (12) is restricted by snubber (9). The movement of the piston rod slows down before the piston rod stops. The shock load is absorbed when the piston is slowed down.