HOSE,RUBBER 1148026 - Caterpillar

Installation Of An Additional Isolation Valve
Use the information that follows in order to install an additional isolation valve.
Table 1
Required Parts    
Item    Qty    Part Number    Description    
1 (1)     1     281-3948     Hose As    
1 (2)     1     287-3088     Hose As    
2     1     281-3949     Bracket    
3     1     129-3178     Locknut    
4     1     8T-4205     Hard Washer    
5     1     5C-9553     Bolt    
6     4     138-8454     Screw    
7     1     6V-8636     Connector    
8     2     6V-8397     O-Ring Seal    
9     2     3J-1907     O-Ring Seal    
10     1     268-1638     Swivel Tee    
11     1     156-5726     Shutoff Valve    
( 1 ) Use With 301.6C And 301.8C
( 2 ) Use With 302.5C
Illustration 1 g01281976
Bracket (A) 7.5 mm (0.3 inch) (B) 42.5 mm (1.7 inch) (C) 7 mm (0.28 inch) Diameter
Check the bracket on the left hand side of the stick. The bracket is for mounting the secondary auxiliary coupler. Drill hole (C) in the bracket, if the hole is not already present. Refer to Illustration 1.
Remove the existing hose and tee assembly from the connector on the rod end of the bucket cylinder.
Illustration 2 g01281980
Isolation Valve In The Secondary Auxiliary Circuit (D) Existing connector for the rod end of the bucket cylinder (E) Existing coupler assembly for the secondary auxiliary circuit
Install the replacement parts that are listed in Table 1. Refer to Illustration 2.