TM 10-3930-664-24 D. INSTALLATION 1. Install  fittings  (8),  elbow  (13)  and  new  O-rings  (11) into orbital steering valve (2). Install elbow (10) and new O-ring (12). 2. Connect  hose  assemblies  (4,  5,  6)  to  fittings  (8). Connect hose assembly (7) to elbow (13).   Connect hose assembly (9) to elbow (10). 3. Mate  orbital  steering  valve  (2)  to  steering  column (3) and instrument panel.   Secure using screws (1). FOLLOW-ON MAINTENANCE: Service hydraulic oil in accordance with Lubrication Order END OF TASK 2-327