TM 5-3895-373-2015.20. ADJUST AND ALIGN MAIN AND EXTENSIONB. ADJUST-Continued.Screed operations present acrushing hazard. Stay clear of screedduring screed operations. Failure todo so may result in death or seriousinjury.NOTECribbing is used under the screedonly as a safety precaution. Do notlower the screed onto the cribbing.Cribbing may have to berepositioned during alignmentprocedure to allow for placement ofstraightedge and to viewmeasurement points.a.Place straightedge (10) along trailing edge ofscreed plate (2) in line with screed plate studs(12). Have one person support each end ofstraightedge.b.Measure for gaps between screed plate (2) andstraightedge (10) at each trailing edge stud (12).NOTEShims and plate spacers may beremoved to lower a high point in thescreed plate. Follow the sameinstructions except remove shim(s)and plate spacer(s) to get screed flat.c.If gaps exist, select minimum combination ofshims (13) and plate spacers (14 through 16) tofill each gap.Place shims and plate spacers in gaps betweenstraightedge (10) and screed plate (2) to selectshims and plate spacers.d.Loosen self-locking nuts (4) on each stud (12)that requires shimming and on the studs oneach side of the stud to be shimmed.e.Use a hammer and tap a pry bar betweenscreed plate (2) and screed near stud whereplate spacers are to be added.f.Insert selected shim (13) or plate spacer (14, 15,or 16) between screed plate (2) and screed.g.Tap pry bar out of screed. Tighten self-lockingnut (4) to 37 lb-ft (50 N•m).h.Place straightedge (10) along trailing edge ofscreed plate (2). Measure for gaps betweenscreed plate and straightedge at each stud (12)shimmed.i.Repeat steps a through h as required to obtaintrailing edge flatness within 0.0625 in. (1,588mm) for main and extension screed plates.GO TO NEXT PAGE15-140
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