4 - 46 S-60 • S-65 Part No. 77828July 2005Section 4 • Repair ProceduresREV D7-7Valve Adjustments - OscillateRelief ValveHow to Adjust the OscillateRelief Valve Pressure1 Remove the drive chassis cover from the non-steer end of the machine.2 Connect a 0 to 2000 psi / 0 to 150 bar pressuregauge to the diagnostic nipple located near theoscillate directional valve.3 Disconnect the directional valve linkage, byremoving the heim joint and retaining fastenerfrom the axle.4 Start the engine from the platform controls.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 directional valveand remove the cap.8 Adjust the internal screw. Turn it clockwise toincrease the pressure or counterclockwise todecrease the pressure. Install the valve cap.Tip-over hazard. Do not adjust therelief valve higher than specified.9 Repeat steps 4 through 7 and manually activatethe valve to confirm the valve pressure.10 Turn the engine off, remove the pressure gaugeand assemble the directional valve linkage.11 Install the cover on the non-steer end of thedrive chassis.MANIFOLDS
