Modification To The Hydraulic Hose Assembly In The Pilot Lines Group Increases Durability Caterpillar

Modification To The Hydraulic Hose Assembly In The Pilot Lines Group Increases Durability

Usage:

EXCAVATORS345B (6XS, 6MW, 8KW),
345B L (4SS, 5WS, 7KS, 9GS, 2NW, 2SW, 8RW, 9CW, BFG) EXCAVATORS

Problem:

Interference between the hydraulic hose assembly and the hose clamp may create unacceptable wear to the hose assembly. The hydraulic hose assembly connects the main hydraulic pump to the pilot filter in the pilot lines group.

Solution:

The addition of new components and a modification to the hose guard will decrease the wear between the hose assembly and the hose clamp. If the 143-4332 Hose Assembly fails or exhibits unacceptable wear, modify the hose assembly and install the clamps as shown in the illustrations.

Illustration 1.

Typical modification to the hydraulic hose assembly. Remove 60.0 mm (2.36 in) of the hose guard as shown.

(1) 143-4332 Hose Assembly

(A) 550.0 mm (21.65 in)

(B) 60.0 mm (2.36 in)

(C) 940.0 mm (37.0 in)

Illustration 2.

Typical right side view of the pilot lines group with View A-A.

(1) 143-4332 Hose Assembly

Illustration 3.

View A-A from Illustration 2.

(2) 5P-7462 Clip

(3) 5P-7463 Clip

(4) 6V-0683 Grommet

COPYRIGHT 2000 CATERPILLAR ALL RIGHTS RESERVED

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