TM 5-3895-373-10 WARNING To    avoid    personal    injury,    do    not attempt    to    lift    and    install    bolt-on screed extension frame alone. Bottom      screed      extension      frame weighs    approximately    42    lbs    (19,0 kg).  Use a second person to help lift and install the bolt-on screed extension frame to the extension and main screed frames.  Failure to do so may result in serious injury. m. Install  the  bolt-on  screed  extension  frame  using the following steps. WARNING To    avoid    personal    injury,    do    not attempt    to    lift    and    install    bolt-on screed extension plate alone.  Bolt-on screed        extension        plate        weighs approximately 57 lbs (25,8 kg).  Use a second  person  to  help  lift  and  install the bolt-on screed extension frame to the extension and main screed frames.  Failure to do so may result in serious injury. CAUTION During     installation     of     the     screed extension plate, ensure that the spacers    and    plate    spacers    on    the studs are not allowed to move or  fall from   the   stud.      If   spacers   or   plate spacers  are  moved  and  not  returned to  their  initial  position  on  the  screed extension plate, an alignment is required. (1) Remove   self-locking   nuts   (27)   and   flat washers  (28)  from  screed  extension  plate (29).  Make sure spacers (30 and 31) and plate    spacers    (32)    are    in    position    on screed extension plate.  With the help of a second    person,    raise    screed    extension plate   up   to   extension   screed   frame   (6). Align    extension    plate    burner    vent    with extension  screed  burner  vent  and  secure in  place  with  flat  washers  (28)  and  self- locking nuts (27). NOTE After installing screed extension plate,    visually    check    alignment    of screed  extension  plate  with  left  and right    extension    screed    plates.        If necessary  remove  plate  spacers  (32) to   ensure   both   plates   are   flush.      If plates   cannot    be    aligned    together, notify a supervisor. (2) Visually check alignment of screed extension plate (29) with extension screed plates (33).  Remove plate spacers (32) if necessary to make the two plates aligned. If  plates  cannot  be  aligned  by  removing plate spacers, notify a supervisor. (3) One person should hold the front end and another  hold  the  rear  end  and  lift  bolt-on screed   extension   frame   (34)   up   to   the extension screed frame (6).  Install two 1- 1/2 in.  hex head cap screws (35) and flat washers (36) in holes shown. (4) Install  cover  plate  (20)  on  end  of  screed extension   plate   (29)   using   lockwashers (19) and hex head cap screws (18). 2-85