TM 5-3805-262-343-2. FUEL SYSTEM MAINTENANCE (CONT)a.lTESTING ( SHEET 1 OF 3)Carbon removing compound is extremely toxic and caustic. Wear protectivegoggles and gloves and use only in a well ventilated area. Avoid contactwith skin, eyes, and clothes and don't breathe vapors. Failure to do socould cause serious injury. If you become dizzy while using carbonremoving compound, get fresh air and medical attention immediately. Ifcontact with skin or clothes is made, remove clothing and wash affectedskin area with large amounts of water. If eye contact is made, flushthoroughly with large amountsmedical aid immediately.of water for at least 15 minutes and getIn following step, don’t allow brass wirebrush to contact spray hole area of nozzletip. To do so will cause damage to nozzle tip.(1)Clean fuel injector nozzle body, capnut, and nozzle tip using carbon re-moving compound to remove externaldirt, grease, and carbon deposits.Use a brass wire brush to remove harddeposits from cap nut, nozzle body,and outside diameter of nozzle tip.NOTERefer to operating instructions provided with test stand to make sureyou follow correct test stand procedures. Your test stand instructionsmay differ from instructions provided below.(2)(a)(b)(c)(3)Prepare test stand as follows:Open gage valve.Fill supply cup with calibratingWork test stand pump handle toremove air from system; toventilate system, open ventscrew located directly behindlower discharge fitting.Connect fuel injector to upperdischarge fitting using teststand adapters and elbow.3-110
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