Table 2-10. Operator Preventive Maintenance Checks and Services (PMCS) for the Transporter cont. Item No. 18 19 20 21 22 23 24 25 Interval Before Before Before Before Before Before Before Before Location Item to Service/Check Splash  Guards Light,  Marker and  Reflector Tie  Down  Hook Assembly Walkway Clamp Cradle  Clamp Pivot  Clamp Towing  Pintle Pivot Clamp Item To be Inspected Procedure Inspect  guards  for  serviceability. Inspect stiffener for deformation, loose, broken or  missing  hardware. Check red clearance light and blackout marker operation. Inspect reflector, lenses and housings for cracks, loose, broken or missing hardware. Inspect wiring and connectors for cracks or bare  wires. Check  hook  operation.  (Should  retract  and return  easily). Check  locking  operation.  (Should  lock  hook against  tie  down  pin  easily). Inspect for cracks, broken welds, deformation, and loose, broken, or missing hardware. Check  clamp  position.  (Should  be  snug against  walkway). Inspect for deformation and loose, broken or missing  hardware. Check  clamp  position.  (Should  be  stowed beneath pivot bar if  not being used for cradle operation). Inspect for cracks, elongation and deformation and loose, broken, or missing hardware. Check clamp seating. (Should be tight against saddle). Inspect  for  cracks. CAUTION Pintle is to be inverted (hook opening toward cab)  prior to any  transporter  operations. Check  pintle  position. Inspect tongue and hook for cracks, deformation and loose, broken or missing retaining pin and rope. Check clamp seating. (Should be tight against saddle). Inspect  for  cracks. Equipment Is Not Ready/Available  If Hook does not retract or return  properly. Hook  does  not  lock against tie down pin. Cracks, broken welds or deformation  noted. Clamp not tightly seated against  saddle. Cracks  noted. CIamp not tightly seated against  saddle. Cracks  noted. 2-22 TM  5-5420-209-12