SOFTWARE GP- 1888079 - Caterpillar

Table 1
Tools Needed    
Tool    Part Number    Part Description    Qty    
A     8T-5320     Hydraulic Test Group     1    
B     9U-6600     Hand Hydraulic Pump     1    
C     3S-6224     Electric Hydraulic Pump     1    The pressure setting of the steering relief valve is 26000 400 kPa (3775 60 psi) at a flow of 8 L/min (2 US gpm). Other components in the steering system will keep the pressure from reaching this value. Use a bench test to achieve an accurate pressure test. The steering relief valve must be removed and tested on a test bench before any adjustments.
Illustration 1 g01500878
Location of steering solenoid and relief valve on the inside of the left-hand rail
Illustration 2 g00281966
Steering solenoid and relief valve (1) Port to front steering accumulator (2) Port for the Auxiliary Power Unit (APU) (3) Port to center and rear steering accumulator (4) Inlet port (5) Port to steering control valve (6) Setscrew (7) Nut (8) Steering relief valveUse the following procedure to change the pressure setting of steering relief valve (8) :Note: Steering relief valve (8) must be adjusted on a test bench.
Loosen nut (6) .
Turn setscrew (7) clockwise in order to increase the pressure setting.
Turn setscrew (7) counterclockwise in order to decrease the pressure setting.Note: One revolution of setscrew (7) will change the pressure setting by 4728 kPa (685 psi).