TM 10-3930-671-24 Tilt Cylinder Adjustment Upright    twisting    (racking)    occurs    when    tilt    cylinder strokes are unequal due to misadjusted rod ends, and/or tolerance stackup in parts. 1. Check   condition   of   the   tilt   cylinder,   rod   end, mounting   pins,   piston   rod,   rod   wiper,   cylinder gland, etc., for excessive wear or damage. Make repairs before making twisting adjustment. Test For Upright Racking 2. Use    a    capacity    load    (see    truck    nameplate) centered  on  the  forks.  Raise  the  upright  only  to the height that will allow the fork tips to clear the floor when tilted fully forward. Be sure to secure the load to the fork carriage to keep it from    falling    off    when    tilted    forward    or    damage    to equipment could result. 3. Slowly tilt upright fully forward. 4. Watch both piston rods for equal movement and upright   for   twisting.   Note   if   upright   "racks"   (is twisted during its movement by unequal stroke of tilt cylinders). NOTE Correct the twisting effect by shortening the cylinder that is the longest length. Forward twisting must be adjusted before  backward  twisting.  If  forward  adjustment  is  not needed, continue with Step 7. 5. To  adjust,  loosen  rod  end  clamp  bolt  on  the  tilt cylinder that extends the farthest, and turn piston rod into rod end to shorten. NOTE Use  wrench  flat  on  rod  end  under  spacer  (if  installed). Move spacer for access. 6. Continue to turn rod into rod end until tilt cylinder strokes are equal. Tighten rod end clamp bolt. Backward Adjustment 7. Slowly tilt upright fully backwards while watching piston rods. They should both  bottom  out  at  the same  time.  If  they  don’t,  adjust  backward  tilt  as follows. F-472