TM 5-3805-261-202-4.GENERAL MAINTENANCE INFORMATION. (cont)1.HydraulicSystemMaintenance. (cont)(7)Cover large openings or ports with cardboard, sheets of plastic or masking tape.WARNINGSolvent burns easily and can give off harmful vapors. To avoid injury, keep away from open fireand use in a well-ventilated area.(8)Clean up all spills and leaks with rags. When gasket is taken off, clean area with dry cleaning solvent P-D-680 and rags.(9)Look at tube and hose nuts and fittings for bad threads. Replace bad nuts and fittings.(10) Take protective caps or plugs off all tubes, lines, fittings, receptacles and connectors before they areinstalled.(11) Make sure connection points and insides of all tubes, lines and fittings are clean before installing them.WARNINGSealing compound and solvent burn easily and can give off harmful vapors. To avoid injury, keepaway from open fire and use in a well-ventilated area.(12) Before you put connection points together again, wipe off openings with solvent (P-D-680) and a cleanrag. If sealing compound was used around connection points, make sure it is removed.(13) Put a light coat of lubricant, same as lubricant in system being worked on, on all preformed packingsbefore installing packing.WARNINGLubricating oil (MIL-L-23699 or MIL-L-7808) can cause skin rash. If oil gets on skin or clothing,wash with soap and water.(14) Put lubricating oil on all threads, except pipe (tapered) threads, before you screw parts together.(15) Always screw on and tighten tubes, hoses and fittings by hand to make sure that they are notcrossthreaded. Tighten with two wrenches whenever possible until you feel solid resistance, then tighten 1/4 turn more.2-8
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