TM 10-3930-659-20 12-6. PRIORITY VALVE-TO-HYDRAULIC RESERVOIR RETURN HOSE REPLACEMENT. This Task Covers: a. Removal b. Installation Initial Setup: Equipment Conditions: Materials/Parts: • Frame  locking bar Installed (see TM  10-3930- •  Rags (Item 27, Appendix C) 659-10). •  Four preformed packings • Hydraulic reservoir drained (see LO 10-3930- 659-12). Tools/Test Equipment: • Conveyorized fork attachments removed from side of forklift truck (see paragraph 17-13). •  General mechanic's tool kit (Item 44 Appendix F • Right engine upper sideshield opened (see TM 10- 3930-659-10). References: • Right transmission side guard removed (see para- graph 14-7). •  LO 103930-659-12 •  TM 10-3930-659-10 NOTE A suitable container should be used to catch any draining hydraulic fluid.  Ensure that all spills are properly cleaned. a. REMOVAL 1. Remove hose (4) from adapter (3). 2. Remove     adapter     (3)     and     two     preformed packings  (2)  from  priority  valve  (1).    Discard preformed packings. TA707564 12-22