HYDRAULIC AR-COUPLER 2151272 - Caterpillar

Installation Procedure
Remove the floorplate and the rear bottom guards.
Illustration 1 g01426758
(12) 238-5471 Hose As (13) 295-8311 Hose As
Remove hose (12), hose (13), and any related clips. Hose (12) and hose (13) are connected to the implement pump pressure sensor, the right hand fender, and the implement pump.
Illustration 2 g01426760
Remove elbow (14) from the large section of the implement pump. Install plug (1) and seal (2) into the large section of the implement pump.
Illustration 3 g01426777
Remove elbow (15) at the rear of the small section of the implement pump. Install connector (3), seal (2), and seal (5) to the rear of the small section of the implement pump.
Illustration 4 g01426780
Remove the plug and seal (16) on the block on the front face of the case and frame. Install connector (3), seal (2), and seal (5) to the block on the front face of the case and frame.
Illustration 5 g01426781
Install hose (4) and seal (5). Refer to Illustration 5 for the correct orientation of hose (4) .
Illustration 6 g01426783
Refer to Illustration 5 and Illustration 6 for the proper routing of hose (4). Be careful not to interfere with the other lines. Clip hose (4) to the lower and forward most mounting bolt on the bracket for the fuel line (17) with clip (6) .
Illustration 7 g01426785
Route hose (4) to bracket (18) on the right hand side of the frame. Clip hose (4) to the lower and forward most bolt on the bracket with clip (7), clip (8), and grommet (9). Install the clips with bolt (10) and the existing washer.
Illustration 8 g01426787
Install the 90 degree end of hose (4) to connector (3) on the block on the front of the case.
Illustration 9 g01426788
Reposition clips (19) for the fuel lines. Refer to Illustration 9 for the correct location of clips (19) .
Illustration 10 g01426796
Install hose (11) and seal (5) to the rear test port.
Refer to Illustration 9 and Illustration 10 for the proper routing of hose (11). Be careful not to interfere with the other lines. Clip hose (11) under the rear clip for the fuel line with clip (6). Refer to Illustration 9 for the correct location of clip (6) .
Illustration 11 g01426798
Connect hose (11) to connector (3) on the back of the small section of the implement pump.