TM  10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 12-13. Sideshift Cylinder (S/N 2000 and below). (Sheet 10 of 10) TESTING Only a qualified operator may perform  the  next  procedure. All other  personnel  must clear the immediate area. Failure to follow this  procedure  could result in SERIOUS  INJURY  or  DEATH.  If injured, obtain medical aid immediately. 49. Turn  master  disconnect  switch  ON. 50. Start engine. 51. Slowly  move  sideshift  cylinder  through at five full movements of travel to bleed air from system. 52. Check  for  binding  of  cylinder assembly  during  operation. 53. Stop engine. 54. Inspect  hydraulic  hoses,  fittings  and cylinder  assemblies  for  leaks. NOTE Return  M10A  Forklift  to original  equipment  condition. END OF TASK 12-120