DISC 0512303 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     FT-2674     Vacuum Cap     1    Start By:
Connect the steering frame lock.
Release the hydraulic system pressure.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Illustration 1 g02624263
Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply 276 to 414 kPa (40 to 60 psi) of air. This procedure will pull vacuum on the hydraulic system.
Illustration 2 g02624888
Disconnect hose assemblies (1) .
Disconnect adapter assembly (2) .
Remove bolts (3) and steering neutralizer valve (4) .
Repeat Step 2 through Step 4 for the other steering neutralizer valve.Installation Procedure
Install steering neutralizer valve (4) in the reverse order of removal.