TM 10-3930-659-20 17-38.    HYDRAULIC OIL RETURN FILTER-TO-PRIORITY VALVE LINE REPLACEMENT (Con't). b. INSTALLATION 1. Install new preformed packing (11) and hose (1) on hydraulic oil return tube (15). 2. Position two clamp halves (12) around hose (1) and Install washer (10), spacer (9), and clamp halves on parking brake bracket (6) with washer (13), screw (14), washer (7), and nut (8). 3. Install new preformed packing (4) and adapter (3) on hydraulic oil return filter head (5). 4. Install new preformed packing (2) and hose (1) on adapter (3). FOLLOW-ON TASKS: • Fill hydraulic reservoir with hydraulic fluid as necessary (see TM 10-3930-659-10). • Install left transmission side guard (see paragraph 14-7). • Close left engine upper sideshield (see TM 10-3930-659-10). TA707894 17-117