Safety  information 
The  following  section  presents  safety  information  with 
which  you  need  to  be  familiar  before  you  service  an  IBM 
mobile  computer. 
General  safety 
Follow  these  rules  to  ensure  general  safety: 
v  Observe  good  housekeeping  in  the  area  of  the 
machines  during  and  after  maintenance. 
v  When  lifting  any  heavy  object: 
1.  Make  sure  that  you  can  stand  safely  without 
slipping. 
2.  Distribute  the  weight  of  the  object  equally  between 
your  feet. 
3.  Use  a  slow  lifting  force.  Never  move  suddenly  or 
twist  when  you  attempt  to  lift. 
4.  Lift  by  standing  or  by  pushing  up  with  your  leg 
muscles;  this  action  removes  the  strain  from  the 
muscles  in  your  back.  Do  not  attempt  to  lift  any 
object  that  weighs  more  than  16  kg  (35  lb)  or  that 
you  think  is  too  heavy  for  you.
v  Do  not  perform  any  action  that  causes  hazards  to  the 
customer,  or  that  makes  the  equipment  unsafe. 
v  Before  you  start  the  machine,  make  sure  that  other 
service  representatives  and  the  customer’s  personnel 
are  not  in  a  hazardous  position. 
v  Place  removed  covers  and  other  parts  in  a  safe  place, 
away  from  all  personnel,  while  you  are  servicing  the 
machine. 
v  Keep  your  toolcase  away  from  walk  areas  so  that  other 
people  will  not  trip  over  it. 
v  Do  not  wear  loose  clothing  that  can  be  trapped  in  the 
moving  parts  of  a  machine.  Make  sure  that  your  sleeves 
are  fastened  or  rolled  up  above  your  elbows.  If  your  hair 
is  long,  fasten  it. 
v  Insert  the  ends  of  your  necktie  or  scarf  inside  clothing  or 
fasten  it  with  a  nonconductive  clip,  about  8  centimeters 
(3  inches)  from  the  end. 
v  Do  not  wear  jewelry,  chains,  metal-frame  eyeglasses,  or 
metal  fasteners  for  your  clothing. 
 
Attention:  Metal  objects  are  good  electrical 
conductors. 
v  Wear  safety  glasses  when  you  are  hammering,  drilling, 
soldering,  cutting  wire,  attaching  springs,  using  solvents, 
or  working  in  any  other  conditions  that  might  be 
hazardous  to  your  eyes. 
Safety  information  
16  R50/R50p,  R51  Series