TM 10-4930-236-13&P4-25. JET LEVEL SENSOR MAINTENANCE.This task covers: a.Removalb.Repairc.nstallationINITIALSETUP :ToolsRequiredGeneral Mechanic Tool Kit (Appendix B, Section III, Item 3)Materials/PartsRequiredDry Cleaning Solvent (Appendix E, Section II, Item 1)Sealing Compound (Appendix E, Section II, Item 6)Rags, Wiping (Appendix E, Section II, Item 13)Lockwashers (b) (Appendix F)EquipmentConditionPumping Unit ShutdownTank 1/2 Full or LessGeneralSafetyInstructionsWARNINGDo not smoke within 50 feet (15.34 meters) of the Tank andPump Unit.Dry cleaning solvent is potentially dangerous to personnel andproperty.REMOVALa.Open manhole (1), remove capscrews(2) and lockwashers (3).b.Maneuver sensor (6) out for access, thendisconnect sensor tubes (4). Note which tube is inletand outlet. Clean tube and apply tape to prevent tubenuts (5) from falling back down tubes (4). Do not allowtubes (4) to fall into tank.c.Remove jet level sensor (6) from tank.d.Loosen hose clamp (7) and disconnecthose (8).e.Remove capscrews (9), lockwashers (10)and remove the jet level sensor (6) with deflector shield(11) from bracket (12).f.Remove screws (13) and flat washers (14) torelease tray (15) from sensor (16).4-61
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