TM 5-3805-262-343-21. CHECKS AND ADJUSTMENTS AND FLOWMETER TESTS (CONT)b. MainReliefValvePressureSettingAdjustment(SHEET1OF4). This task cov-ers adjustment of main relief valve pressure setting. Main relief valve is locatedon the control valve assembly.TOOLS: No. 1 Common Organizational Maintenance Tool KitSlip joint pliersFlat tip screwdriver, 5/16 inch wide tip, six inches longCombination box and open end wrench setPressure gage, zero to 3000 psi rangeMATERIALS/PARTS: Clean cloths (Appendix C, item 1)Cleaning solvent P-D-680 (Appendix C, item 2)NOTEPRELIMINARY PROCEDURES: Front access door unlocked and open.Dry cleaning solvent P-D-680 used to clean parts is toxic and flammable.Wear protective goggles and gloves and use only in a well ventilatedarea. Avoid contact with skin, eyes and clothes and don’t breathevapors. Do not use near open flame or excessive heat and don-t smokewhen using it. Failure to do so could cause serious injury. If youbecome dizzy while using cleaning solvent, get fresh air and medicalattention immediately. If contact with skin or clothes is made, flushwith large amounts of water.If contact with eyes is made, wash eyeswith water and get medical aid immediately.(1) Using clean cloth moistened withand grease from quick disconnect(2) Remove cap from quick disconnectcleaning solvent P-D-680, clean all dirtcoupling (1) at pump outlet.coupling (1).3-617
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