TM 10-3930-659-20 12-10.    PRIORITY VALVE-TO-STEERING VALVE 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). • Three preformed packings • Cab skirts removed (see paragraph 14-6). • Right transmission side guard removed (see -  References: paragraph 14-7). • TM 10-3930-659-10 Tools/Test Equipment: • General mechanic's tool kit (Item 44, Appendix F) 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 (3) from adapter (2). 2. Remove adapter (2) and two preformed packings (4) from priority valve (1).  Discard preformed packings. TA707571 12-30