ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 4-8 TABLE 4-1.  DIRECT SUPPORT TROUBLESHOOTING (Sheet 7 of 12) Not OK   OK   OK   Not OK   LOW OIL PRESSURE Low oil pressure. Check for defective regulating valve (refer to paragraph 4.5.2). Replace regulating valve (refer to paragraph 4.5.2). Check for defective oil pump (refer to paragraph 5.4.9). Check for clogged oil pickup tube assembly (refer to paragraph 4.5.4). Remove and clean pickup tube assembly (refer to paragraph 4.5.4). Replce defective oil pump (refer to paragraph 5.4.9). Check for worn rocker arm bushings (refer to paragraph 4.7.3). Not OK   OK   Replace rocker arm bushings (refer to paragraph 4.7.3). Notify next higher level of maintenance. OK   Not OK