2002/12/02 The Lines for the Hoist Cylinders Have Been Updated in Order to Protect the Hoist Valve {5057} Caterpillar


The Lines for the Hoist Cylinders Have Been Updated in Order to Protect the Hoist Valve {5057}
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2002/12/02 [SEPD0658]
HYDRAULIC SYSTEM
LINES GP-HOIST
2002/12/02 The Lines for the Hoist Cylinders Have Been Updated in Order to Protect the Hoist Valve {5057}
Off-Highway Truck/Tractor:
776D (S/N: AFS1-UP)
777D (S/N: AGC1-UP)
777D HAA (S/N: AGY1-UP)

Description of Change: The lines for the hoist cylinders have been updated. A guard has been added. The guard will protect the hoist valve from debris from the front tires. The lines have been changed in order to avoid interference with the guard.

Adaptable To: The updated 169-3781 Hoist Oil Lines Gp is effective with (S/N: AGC1064-UP; AGY81-UP; AFS81-UP). All older machines can be adapted to the new type. The 169-3781 Hoist Oil Lines Gp is serviced only by parts. Refer to the following information.

Parts for Removal




Illustration 1g00917067

Table 1
Ref No     Qty     Part Number     Description    
1     2     173-0284     Block    
2 4J-0524     O-Ring Seal    
2     1     173-0285     Hose As    
2 4J-0520     O-Ring Seal    
3     1     173-0286     Hose As    
2 4J-0520     O-Ring Seal    
4     1     173-0287     Hose As    
2 4J-0520     O-Ring Seal    
5     1     173-0288     Hose As    
2 4J-0520     O-Ring Seal    
6     4     1P-4577     Half Flange    
7     2     5J-3399     Connector Plate    
2 4J-0524     O-Ring Seal    
8     8     5J-5794     Bolt    
9     1     5P-7468     Clip    
10     1     5P-7469     Clip    
11     1     5P-8444     Grommet    
12     8     5S-7382     Bolt    
13     8     8T-4896     Hard Washer    

Parts for Installation




Illustration 2g00917080

Guard (6) is removed in the enlarged view.

Table 2
Ref No     Qty     Part Number     Description    
1     1     173-0286     Hose As    
2 4J-0520     O-Ring Seal    
2     1     217-3404     Manifold    
2 4J-0524     O-Ring Seal    
3     1     218-2659     Plate    
2 4J-0524     O-Ring Seal    
4     1     218-3777     Hose As    
2 4J-0520     O-Ring Seal    
5     1     218-3778     Hose As    
2 4J-0520     O-Ring Seal    
6     1     219-6037     Guard    
7     1     221-2791     Hose As (1)    
1 2P-1801     Stem    
2 3S-7252     Sleeve    
1 5S-2105     Stem    
1 165-0021     Hose (
112 cm (44.1 inch))    
2 4J-0520     O-Ring Seal    
8     2     3D-2824     O-Ring Seal    
9     2     3J-1907     O-Ring Seal    
10     4     5P-1076     Hard Washer    
11     1     5P-7466     Clip    
12     1     5P-7467     Clip    
13     1     5P-8112     Grommet    
14     2     6V-0484     Elbow    
15     1     6V-8637     Seal Connector    
16     1     6V-9007     Elbow    
17     2     6V-9746     O-Ring Seal    
18     8     8M-2530     Bolt (12 Point)    
19     4     8T-8917     Bolt    
20     6     9S-9739     Bolt (12 Point)    
( 1 ) The 221-2791 Hose As is nonserviceable. The hose assembly can be fabricated with the parts that are shown below the hose assembly. Refer to Special Publications, PECP5030, "Hydraulic Hose and Coupling Reference Guide" for more information regarding the fabrication of hose assemblies.

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