TM 9-2350-238-34-210111213141516Do not allow pressure to go over500 psi (3448 kPa). Failure to fol-low instructions may result indamage to equipment.Loosen nut (7).Watching oil pressure tester, push BOOMcylinder control handle (8) slowly toLOWER. If necessary, turn screw (9)counterclockwise to decrease pressure.Needle valve (10) can be adjusted byhand to provide a steady oil pressuretester reading.Adjust pressure for pressure relief valve(11) to between 180 and 220 psi (1241and 1517kPa) by turning screw (9)counterclockwise to decrease pressure orclockwise to increase pressure.When correct pressure adjustment is ob-tained, tighten nut (7).If correct pressure adjustment cannot beobtained, replace pressure relief valve.Refer to page 2-163.Slowly lower boom to stow position.Turn off hydraulic9-2350-238-10.system. Refer to TM2-169
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