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Windy Nation Rover Marine Grade User Manual

Page 9

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cable  gland  nut.  It  is  important  to  firmly  tighten  the  cable  gland  nut  (See  Figure  4  above)  

because  it  supports  the  weight  of  the  wires  hanging  down  the  tower.  Failure  to  tighten  the  

cable  gland  properly  could  cause  the  tower  wires  to  slip  downward  and  put  tension  on  the  

three  wires  coming  out  of  the  generator.  This  could  cause  damage  to  the  generator.    

 

For  towers  over  25  feet  tall,  a  stainless  steel  hose  clamp  needs  to  be  firmly  clamped  

around  the  three  tower  wires  directly  above  the  cable  gland  nut  (See  Figure  4  above).  Stainless  

steel  hose  clamps  can  be  purchased  from  local  hardware  stores.  The  hose  clamp  adds  

secondary  support  so  that  the  tower  wires  do  not  slip  down  the  tower  and  put  unnecessary  

tension  on  the  three  generator  wires.  This  is  necessary  for  towers  over  25  feet  due  to  the  

added  wire  weight  in  tall  towers.    

 

Next,  connect  the  three  tower  wires  to  the  three  wires  exiting  the  back  of  the  

generator.  Take  great  care  in  making  sure  these  wire  connections  are  strong  and  have  good  

continuity.  It  is  highly  advisable  to  cover  these  wire  connections  with  outdoor  rated  heat  shrink  

tubing  to  prevent  possible  wire  shorts  and  to  protect  the  wire  connections  from  the  outdoor  

elements.  Remember,  poorly  connected  wires  will  negatively  affect  the  power  performance  of  
any  wind  turbine  and  will  lead  to  wire  connection  failure!  

 

Section  3.0:  Attaching  the  blades  to  the  hub  

 

 

Figure  5  

 

 

Be  careful  not  to  hit,  bend  or  damage  the  blades  while  attaching  the  blades  to  the  hub  as  
this  could  make  the  blades  unbalanced!    
 

Note:  The  blades  should  be  mounted  so  that  they  curve  away  from  the  wind  turbine.  If  you  
are  standing  in  front  of  the  wind  turbine  with  the  blades  facing  you,  the  blades  will  curve  
outward  and  towards  you.  

 

Step  1:  

Locate  the  bag  which  is  labeled  “Blade  to  Hub  Fastener  Set”.  This  bag  should  contain  

the  following  fasteners:  15  stainless  steel  bolts,  15  stainless  steel  k-­‐lock  nuts,  and  15  stainless  

steel  flat  washers.