TM 10-3930-659-20 12-1. STEERING SYSTEM LEAKAGE TEST (Con't). 15. Holding  firm,  constant  pressure  on  steering  wheel,  turn  steering  wheel  rapidly  and  note  pressure  reading  on pressure gage (24).  Repeat step turning steering wheel in opposite direction.  Pressure gage should read 3000- 3200 psi (20,685-22,064 kPa).  If pressure reading is not within specification, replace crossover relief valve (see paragraph 12-25). 16. Shut down engine (see TM 10-3930-659-10). 17. Remove pressure gage (24) and hose (25) from tee (21). 18. Remove hose (22) from tee (21). 19. Remove  two  preformed  packings  (23)  from  tee (21).  Discard preformed packings. 20. Remove  tee  (21)  and  preformed  packing  (20) from   priority   valve   (19).      Discard   preformed packing. 21. Install  new  preformed  packing  (20)  and  hose (22) on priority valve (19). 22. Perform  priority  valve  relief  pressure  test  (see paragraph 12-27). FOLLOW-ON TASKS: • Install right and left transmission side guards (see paragraph 14-7). • Install right and left side cab skirts (see paragraph 14-6). • Remove frame locking bar (see TM 10-3930-659-10). TA707550 12-6