TM 10-3930-659-20 12-23.    STEERING VALVE NEUTRAL LEAKAGE TEST (Con’t). 3. Place suitable container (5) under hose (2). 4. Start  engine  and  run  at  fast  engine  idle  speed (see TM 10-3930-659-10) for one minute. 5. If hose (2) leaks more than 0.4 gallons (1.5 one minute,  replace  steering  valve  (see  paragraph 12-24). 6. Shut down engine (see TM 10-3930-659-10). 7. Remove cap (1) from tee (4). 8. Install  new  preformed  packing  (3)  and  hose  (2 tee (4). FOLLOW-ON TASKS: • Install     transmission     side     guards     (see paragraph 14-7). • Install cab skirts (see paragraph 14-6). • Remove   frame   locking   bar   (see   TM   10- 3930-659-10). 12-60