7
Use the operation instructions in this manual to operate the Liftgate 
through one cycle without a load on the platform. Raise the platform 
to vehicle bed height. Next, lower the platform to ground level.
 When raising and lowering platform, listen for unusual noises and look
     for a “jerking” motion or uneven movement at LH and RH sides of the 
     platform. Uneven movement should not exceed 1”.
If service or repairs are not required (or if completed), stow platform 
for transport.
 With platform at bed height, make sure the LH and RH platform chains
      feel even in tightness.