Position the chain on liftwheel as explained in Step 1lf. f)  Refer  to  Steps  1g  thru  m  above  to  complete  the installation. Hoist Lubrication IMPORTANT:    To    assure    exta    long    life    and    top performance,  be  sure  to  lubricate  the  various  parts  of the Lodestar Hoist using the lubricants specified below. If desired, these lubricants may be purchased from the factory. GEAR • The  Lodestar-Protector  should  operate  for  the normal  life  of  the  hoist  without  service.    The device has been lubricated and calibrated at the factory  for  a  specific  model  of  Lodestar  hoist and is not adjustable or interchangeable with CAUTION  :  The  CM  Lodestar  Protector  is  to  be  used with  "American  Lubricants  #6283"  grease.    Do  not  use any   other   grease   or   the   protector   will   not   operate properly and parts could be damaged. The gears and Protector (S-327 and S-328) are packed at assembly with grease and should not need to be renewed unless the gears have been removed from the housing and degreased. WARNING : Never degrease the Protector or attempt to disassemble this device.  Degreasing the Protector may damage   parts   and   using   a   device   that   has   been degreased may cause erratic, inconsistent operation.  If the  Protector  has  been  degreased,  it  must  be  replaced by a factory calibrated device. If the gears are removed from the housing, wipe the  excess  grease  off  of  the  outside  surfaces  of  the Protector with a soft cloth, and degrease the remaining gears and housings.  Upon reassembly, add 7 oz.  of the above  grease  to  gears  and  housing.    Also,  coat  the spline   on   the   end   of   the   drive   shaft   (S-311)   with   a Molydisulphide lubricant such as "Super Herculon". For  Models  JJ,  LL,  RR  and  JJ-2,  LL-2,  RR-2, see   page   28   for   special   gearing   alignment instructions. • The limit switch gears are of molded nylon and require no lubrication. • Apply  a  light  film  of  machine  oil  to  the  limit switch shaft threads (S-220 pages 29 and 31) at least once a year. BEARINGS • All bearings and bushings except the lower hook thrust    bearing    are    pre-lubricated    and    require    no lubrication.    The  lower  hook  thrust  bearing  should  be lubricated at least once a month. CHAIN  GUIDES,  LIFTWHEEL  AND  LOWER  SHEAVE WHEEL • When  the  hoist  is  disassembled  for  inspection and/or  repair,  the  chain  guides,  lower  sheave wheel (on double chain units) and liftwheel must be lubricated with LPS #3 (LPS Research Lab.) prior to re-assembly.  The lubricant must be ap plied   in   sufficient   quantity   to   obtain   natural runoff and full coverage of these parts. LOAD CHAIN • A small amount of lubricant will greatly increase the   life   of   load   chain.      Therefore,   the   chain should not be allowed to run dry. • Keep  it  clean  and  lubricate  at  regular  intervals with   LPS   #3   (LPS   Research   Lab.)   or   equal lubricant.      Under   ordinary   conditions,   weekly lubrication    and    cleaning    with    a    solvent    is satisfactory but under hot and dirty conditions, it may  be  necessary  to  clean  the  chain  at  least once   a   day   and   lubricate   it   several   times between cleanings. • When  lubricating  the  chain,  the  lubricant  must be applied in sufficient quantity to obtain natural run-off and full coverage of the chain. Trolley Lubrication LOW HEADROOM TROLLEY • CM Trackwheel bearings are pre-lubricated and required no lubrication. Adjustments ELECTRIC BRAKE ASSEMBLY The  correct  air  gap  between  armature  and  fiel when  brake  is  not  energized,  is  0.025  inch  al  need  not be adjusted until the gap reaches 0.04t inch. To adjust the brake, proceed as follows: 1. Disconnect hoist from power supply. 2. Remove back frame cover, see Figure 4. 3. Before  adjusting  the  gap;  a)  back  off  the  stud nuts   and   examine   friction   linings   and   friction surfaces     for     excessive     wear,     scoring     or warpage.    b)  Check  shading  coils  to  be  sure they are in place and not broken.  A missing or broken  shading  coil  will  cause  the  brake  to  be noisy   when   hoist   is   operated.      Any   of   these symptoms indicate the need for replacement of parts. 4. Turn adjusting nuts clockwise gaging the air gap at both ends. 5. Replace cover, reconnect the power and check operation. LIMIT SWITCHES -ENCLOSED TYPE If limit switch operation has been checked as described on   page   5   and   is   not   operating   correctly   or   is   not automatically  stopping  the  hook  at  a  desired  position, proceed as follows: 1. Disconnect hoist from power supply. 2. Remove back frame cover, see Figure 4. 3. The  position  of  upper  and  lower  limit  switches are indicated on the fiber insulator. 4. Loosen  the  screws  and  lockwashers  to  permit guide plate to be moved out of engagement with the traveling nuts, refer to Figures and 15. 16