TM 10-3930-659-34 4-57.  STEERING VALVE REPAIR (Con’t). 2. Inspect parts for nicks, burrs, and damage.  Replace damaged parts. 3. Inspect and clean bearings in accordance with TM 9-214. c.           ASSEMBLY 1. Secure steering valve body (3) in machinist’s vise with vise jaw caps. 2. Install two thrustwashers (25), needle bearing  (26),  new  oil  seal  (24),  new  preformed  packing  (23),  new  backup ring (22), and new preformed packing (21) on steering valve body (3). 3. Install bushing (20), new seal (19), and retaining ring (18) on steering valve body (3). 4. Install  check  ball  retainer  (12),  check  ball  (13), new   preformed   packing   (14),   check   ball   seat (15), new preformed packing (16), and setscrew (17) on steering valve body (3). 4-217