M-Monthly 1 2 3 4 5 6 7 8 Item No. ARMY  TM  9-6115-644-24 AIR  FORCE  TO  35C2-3-446-12 MARlNE   CORPS   TM   09249A/09246A-24/2 TABLE  2-5. Unit  Preventive  Maintenance  Checks  and  Services Q-Quarterly S-Semi-annually A-Annually B-Bi-annually H-Hours M Q Interval S l A B l H 300 300 1500 300 300 750 300 Item to be Inspected Engine   Lube Oil Drain  engine  lube  oil.  Add proper lube oil per LO 9-6115-644-12. Fuel   Filter/ Change  fuel  filter/water Water  Sepa- separator.  Refer  to  TM rator 9-2815-255-24. Cooling   Sys- tem Drain  coolant  and  flush cooling system. Add proper  coolant.  Refer  to paragraph 2-76-2. Inspect  radiator  cap  for corrosion,  tom  or  deterio- rated  seal,  and  obvious damage. Remove batteries. Refer to paragraph 2-12-2. Clean  batteries,  cable  ter- minals,  and  battery  posts. Test batteries for state of charge. Refer to para- graph 2-12-1. Inspect    air    cleaner  assem- bly  and  mounting  bracket for  cracks,  dents,  and  oth- er damage. Inspect ele- ment  for  clogs  and  dam- age.  Clean  or  replace  as necessary. Clean housing with  cleaning  cloth. Remove,  clean,  and  in- spect  tubing  and  breather. Refer  to  paragraph  2-75. Inspect  for  loose,  dam- aged,  or  missing  hardware and  sound  insulation. Tighten  loose  hardware. Repair  or  replace  dam- aged  or  missing  hardware and  insulation. Radiator  Cap Batteries Air Cleaner Assembly Air  Cleaner Tubing   and Breather Hardwareand Sound  Insula- tion Procedures Equipment  is Check  for  and  have not repaired  or  adjusted Ready/Available as necessary if: NOTE:  Oil  filter  should  be changed    with  lube  oil change.  Refer  to  TM 9-2815-255-24. Radiator cap or seal is damaged. Batteries will not hold charge. Loose, missing, or damaged  hardware  or insulation. Change 1 2-11