TM 10-3930-659-20 12-13.    SECONDARY  STEERING  MANIFOLD-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 (tem 27, Appendix C) 659-10). • Four preformed packings • Cab skirts removed (see paragraph 14-6). • Priority valve-to-steering valve hoses and fittings removed (see paragraph 12-10). References: •   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 (4) from adapter (3). 2. Remove adapter (3) and two preformed packing,(2) from secondary steering manifold (1).  Discard preformed packings. TA707578 12-38