TM 10-3930-659-20 5-6. TURBOCHARGER OIL LINES AND FITTINGS REPLACEMENT (Con't). 2. Remove screw (6), lockwasher (5), clamp (4), and turbocharger oil supply line (3) from engine block (8).  Discard lockwasher. 3. If damaged, remove elbow (2) from turbocharger (1). 4. If removed, install elbow (2) on turbocharger (1). 5. Install turbocharger oil supply line (3) on elbow (2) and engine oil sampling valve (7). 6. Install clamp (4) on turbocharger oil supply line (3) and engine block (8) with new lockwasher (5) and screw (6). b. TURBOCHARGER OIL RETURN LINE AND FITTINGS REPLACEMENT 1. Loosen two clamps (13), and remove hose (14) and turbocharger oil return line (12) from adapter (15). 2. Remove two screws (11), lockwashers (10), turbocharger oil return line  (12),  and  gasket  (9)  from  turbocharger (1).  Discard gasket and lockwashers. 3. If damaged, remove adapter (15) from engine block (8). TA706855 5-15