TM 10-3930-659-20 5-7. ENGINE OIL SAMPLING VALVE REPLACEMENT. This Task Covers: a. Removal b. Installation Initial Setup: Equipment Conditions: Tools/Test Equipment: • Battery disconnect switch in OFF position (see •  General mechanic's tool kit (Item 44, Appendix F) TM 10-3930-659-10). • Left engine upper sideshield opened (see TM 10- References: 3930-659-10). •  TM 10-3930-659-10 a. REMOVAL 1. Disconnect turbocharger oil supply line (1) from tee (2). 2. Remove  engine  oil  sampling  valve  (5),  tee  (2), and bushing (3) from engine block (4). b. INSTALLATION NOTE Ensure that engine oil sampling valve Is facing down when Installed. 1. Install bushing (3), tee (2), and engine oil sampling valve (5) on engine block (4). 2. Connect turbocharger oil supply line (1) to tee (2). FOLLOW-ON TASKS: • Close left engine upper sideshield (see TM 10-3930-659-10). TA706857 5-17