TM 5-3895-374-24-1 Installation and maintenance of gear reducers General Please  read  and  follow  these  instructions  carefully  to  obtain maximum  performance  while  maintaining  warranty  rights  on the equipment received. Every   EURODRIVE   product   is   factory   tested   and   properly packaged   before   it   leaves   our   company   Please   report   any transport damage to the agent of the forwarding carrier. Storage If the reducers are to be stored before installation, the storage area   should   be   dry   and   well   ventilated   Prolonged   storage and/or   storage   in   areas   of   high   humidity,   requires   special precautions. Instructions for long term storage can be obtained from  EURODRIVE  If  storage  15s  done  in  an  area  of  extreme and rapid temperature changes, the ventilation plug should be installed for the period of storage (See "Lubrication"). Mounting The  reducers  must  be  mounted  on  a  firm,  rigid,  plane  base, preferably with a machined surface. The support must not flex under load, and the unit has to run vibration free at all times. Careful  alignment  with  the  driven  machinery  is  essential   In applications  that  exert  side  loads  onto  the  shaft,  mechanical side stops, adjustable if possible, should be installed onto the mounting surface. To maintain the warranty, the reducer shall not be modified or other equipment attached to it. Installation of Driven Members The    shafts    are    protected    against    corrosion    with    a    vinyl strippable coating, which can be easily removed without using chemicals   If   chemicals   are   used   for   shaft   cleaning,   avoid contact   with   the   shaft   seals   to   protect   seal   and   bearing lubrication. EURODRIVE  shafts  are  machined  with  tolerances  as  shown on the dimension sheets in our catalogues. Driven  members,  sprockets,  pulleys,  and  sheaves  should  be heated to 80 degr C (180 degr F), and pushed over the slightly greased   shaft   Metric   shafts   are   provided   with   centrebores which can be used for attachment of mounting tools. Reducers   with   keyless   hollow   shafts   (Ringfeder   or   Stuewe taper-locks)  require  special  attention  See  instructions  on  the next page. Never  force  driven  members  with  hammer  strokes  onto  the shaft. Doing so will greatly decrease bearing life. Belts, chains, etc , should be mounted as close as possible to the  casting  of  the  reducer  to  reduce  overhung  loads  on  the shaft   Values   for   maximum   permissible   overhung   loads   are published in EURODRIVE catalogues, or can be obtained from our offices. Lubrication EURODRIVE  reducers  are  shipped  with  the  proper  oil  level according  to  the  mounting  position  specified  on  the  original order. The reducer is provided with a  red-painted  level  plug,  a  drain plug located on its lowest spot,  and  a  blue-painted  plug  indicating  the  location  for  the breather  plug.  The  breather  plug  is  shipped  in  a  plastic  bag attached   to   the   reducer   Breather   plugs   for   gearmotors   are shipped  inside  the  motor  terminal  box.  Some  reducers  (i.e., R/RF30 and S/SF30) do not require ventilation. When the installation of the drive  Is  completed,  the  blue  plug should  be  located  on  the  highest  spot  on  the  reducer  The location   of   the   level   plug   and   the   ventilation   plug   must   be checked according to the mounting position data contained in this book, pages 21 to 26. In   certain   mounting    positions,    slight    oil    loss    through    the breather    plug--due    to    foaming    of    oil,    or    due    to    internal agitation--might  occur      In  these  cases,  the    ventilation  plug can  be  substituted  with  a  solid  plug,  since  our  reducers  are safe  to  be  run  sealed.  For  washdown  applications,  specially protected ventilation plugs are available to prevent water from being sucked into the gearcase enclosure. Some  gear  reducers,  specifically  types  R/RF30  and  S/SF30, do  not  need  any  maintenance.  They  can  be  mounted  in  any position and therefore, do not have a level plug. For refills, see page 27 for type and quantity of oil to be used. Before starting the unit, the proper oil level has to be checked at  the  red-painted  level  plug.  If  lubricant  is  missing,  fill  to  the proper level with the oil suggested on page 27 Mixing different types of oils should be avoided Using types of oils other than those shown on page 27 may void the warranty. Oil quantities needed for complete refills are shown on page 28. After   the   initial   start   up,   the   oil   level   should   be   checked periodically,  and  the  area  surrounding  the  reducer  should  be inspected for evidence of leaking oil. We  suggest  changing  the  reducer  oil  every  10,000  hours  of operation, or every 2 years, whichever is shorter. With the use of  synthetic  lubricants,  20,000  hours  or  4  years  of  operation can     be     obtained     Adverse     environments,     high     humidity, aggressive media, and high temperature will shorten the useful life of the lubricant. CAUTION:  Synthetic  lubricants  must  not  be  mixed  with  other types, or brands, under any circumstances. Bearings Antifriction bearings are either lubricated by the gear oil, or are provided  with  sealed  grease  packings  EURODRIVE  does  not prefer   to   provide   field   re-greasable   bearings   (Zerk   fittings) since today’s high quality greases will likely outlast the bearing If downtime, due to bearing failure must be avoided under any circumstances,  periodical  cleaning,  checking  and  re-greasing with  specified  grease  is  recommended  As  option,  the  input covers  of  helical  gear  units  can  be  provided  with  regressing facilities, or oil bath lubrication on larger units. Dismantling Reducers Please refer to page 5 of this manual. (page 3-615)