TM 1-1500-204-23-1 CHAPTER 2 HANGAR AND SHOP OPERATIONS 2-1.      General.      The   maintenance   instructions   and procedures  contained  in  this  chapter  are  general  and applicable to hangar and shop operations.  Maintenance instructions  that  are  specific  to  a  particular  aircraft  are contained  in  the  applicable  maintenance  manuals  and will   be   used   in   conjunction   with   general   information contained in this chapter. 2-2.    Permanent  Shop  Installations.    The  following paragraphs     describe     permanent     shop     installations, operations, and equipment. a. Typical  Layout.    Permanent  shop  layout  vanes depending on shop purpose and the facility being used. Care should be taken to provide proper spacing between equipment so as not to prevent emergency access. b. Shop Size.    The  size  of  each  permanent  shop shall be adequate to allow shop personnel to accomplish all normal shop operations. c. Shop  Equipment  Required.    Permanent  shops shall    be    equipped    with    all    required    equipment    as specified by Army command. d. Shop Equipment Arrangement. Shop equipment  is  arranged  to  best  meet  the  needs  of  the particular    shop    operation.        All    equipment    must    be arranged    with    utmost    care    to    prevent    danger    to personnel. e. Overhead  Chain  Hoist.    Overhead  chain  hoists shall be inspected daily for the following. · Excessive wear or stretch · Bent or twisted links · Defective welds · Nicks and gouges f. Compressed Air and Water Outlets  Permanent shops   are   equipped   with   compressed   air   and   water outlets.    Care  should  be  taken  to  allow  clear  access  to each outlet. g. Electrical Utilities.  Electrical power is distributed throughout the permanent shop.  Care should be taken to allow clear access to each outlet. h. Noise  Levels.    Noise  levels  from  machinery  in permanent shops are high.  Personnel working in these shops shall wear adequate hearing protection. i. Dust    and    Dirt    Control.        Use    the    following procedures for dust and dirt control in permanent shops. (1) Sweep  the  floors  daily  with  an  ordinary push broom. NOTE Carefully    clean    areas    where    dust producing    operations    have    taken place (2) Clean shop equipment in accordance with the applicable maintenance manuals. (3) Clean walls and tables periodically with a cloth dampened with a mild detergent. j. Spray Painting. All painting shall be accomplished   in   the   paint   shop   in   accordance   with proper procedures as set forth by the facility supervisor. k. Adhesive   Operations.      Adhesives   join   objects over a broad area, instead of localizing stresses at one or more points, as with spot welding or metal fastening. Adhesives  simplify  construction  by  eliminating  bracing, stiffeners, local reinforcements, or framing Adhesive use is a reliable, efficient assembly method. l. Balancing Equipment.    The  equipment  used  for balancing   measurements   consists   of   a   set   of   knife edges,    weights,    weighing    scale,    and    a    steel    tape measure. m. Environmental   Control.    The    permanent    shop environment is controlled by environmental control units installed throughout the shop. n. Lighting  Requirements.    Adequate  lighting  shall be   provided   for   all   shop   operations.      Light   fixtures should 2-1