Section 4 • Repair Procedures4 - 74 S-80 • S-85 • S-80X Part No. 122985February 2012OSCILLATING AXLE COMPONENTS14-2Oscillate Directional ValveHow to Adjust the OscillateRelief Valve Pressure1 Connect a 0 to 2000 psi / 0 to 150 bar pressuregauge to the diagnostic nipple located on thefunction manifold.2 Remove the drive chassis cover from the non-steer end of the machine.3 Disconnect the directional valve linkage, byremoving the clevis yoke from the drivechassis. Refer to illustration 1.a oscillate valveb clevis yokec drive chassis4 Start the engine from the ground control.5 With the engine running, manually activate thevalve and observe the pressure reading on thepressure gauge. Refer to Section 2,Specifications.6 Turn the engine off.7 Locate the relief valve on the function manifold(item SC).8 Loosen the jam nut on the relief valve.9 Turn the valve clockwise to increase thepressure or counterclockwise to decrease thepressure.Tip-over hazard. Do not adjust therelief valve higher than specified.10 Tighten the jam nut.11 Repeat steps 4 through 10 to confirm theoscillate relief valve pressure.Note: The oscillate pressure required is while theoscillate cylinders are in motion. Do not dead headthe cylinders to either side.12 Turn the engine off, remove the pressure gaugeand assemble the directional valve linkage.13 Install the cover on the non-steer end of thedrive chassis.abc
