Table  4-1.  Unit  Preventive  Maintenance  Checks  and  Services  (PMCS)  for  the  Transporter  cont. Location Item Interval Item To Be Inspected Equipment Is Not No. Item to Service/Check Procedure Ready/Available If 20 Monthly    Light,  Marker Ensure both red clearance light and blackout and  Reflector marker are functional. Ensure red reflector is serviceable. Check  lenses  and  housings  for  cracks. Check wire harness for loose/bare wiring and connector  integrity. 21 Monthly    Walkway Ensure clamp is secured property to walkway. Clamp  not  secured Clamp property. Check for deformation. 22 Monthly    Cradle Clamp Ensure  clamp  position  is  in  proper  position  for intended  operation. Check for deformation of cradle retaining hook. Ensure  clamp  alignment  hole  alines  with support  tube. 23 Monthly    Pivot  clamp Ensure clamp is properly seated against Clamp  not  tightly  seated saddle. against  saddle. Check  grease  fitting  for  serviceability. Inspect for cracks. Cracks  noted. 24 Monthly Pivot  clamp Ensure clamp is properly seated against Clamp  not  tightly  seated saddle. against  saddle. Check  grease  fitting  for  serviceability. Inspect for cracks. Cracks  noted. 25 Monthly    Cradle  Clamp Ensure  clamp  position  is  in  proper  position  for intended  operation. Check for deformation of cradle retaining hook. Ensure  clamp  alignment  hole  alines  with support  tube. 26 Monthly    Walkway Check clamp position. (Should be snug Clamp against  walkway). Inspect for deformation and loose, broken or missing  hardware. 27 Monthly    Bay  Roller Ensure roller rotates freely. Assembly Check roller for gouges, nicks, and cuts to Roller  damages  bay. surface  area. Ensure grease fitting is serviceable. Check axle, bearing and thrust washer serviceability. 4-8 TM 5-5420-209-12