TM 5-3805-262-343-21. CHECKS AND ADJUSTMENTS AND FLOWMETER TESTS (CONT)d. CircuitReliefValvesPressureSettingCheckandAdjustment(Sheet3OF3).(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)3-626Move hand pump handle in both directions and look at pressure gage onhand pump. Record highest pressure indication on gage.Repeat step (4) above several times to ensure that recorded pressure in-dication is correct.Pressure indication shall be 2550 to 2950 psi. If pressure indication isnot correct, goto step (7) below, otherwise go to step (13) below.At circuit relief valve associated with circuit being checked, use 1/4inch drill bit to drill hole in center of expansion plug. Use drive pinpunch inserted in hole to remove expansion plug.Remove lock plug (8) using fabricated tool.Turn adjusting screw (9) clockwise to increase pressure setting; counter-clockwise to decrease pressure setting.Using fabricated tool to prevent adjusting screw (9) from turning, in-stall and tighten lock plug (8).Repeat steps (4) and (5) and (8) through (10) above to check and adjustpressure setting if necessary.Install new expansion plug (7) in circuitRelease hand pump pressure and disconnectConnect or reinstall tube, as applicable.tight.relief valve body.hand pump from tube or fitting.Ensure that all connections areTighten hydraulic reservoir fill cap and close and lock front accessdoor.
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