SERVICE MANUAL CONDITION POSSIBLE CAUSE CORRECTION Low pressure to steering gear 6 Low oil level 6 Fill reservoir to proper level (Cont’d.) and check for leaks. 7 Loose belt 7 Adjust belt tension to specifica- tion Hard steering or lack of assist 1 Loose belt 1 Adjust belt tension to specifica- especially in parking tion 2 Low oil level 2 Fill reservoir to proper level and check for leaks. 3 Steering gear to column 3 Align steering column misalignment 4 Lower coupling flange rub- 4 Loosen pinch bolt and assemble bing against steering gear properly 5 Tires not properly inflated 5 Inflate to recommended pressure 6 Cracked or broken pres- 6 Replace parts. sure plate or cam ring 7 Missing housing ball plug 7 Replace part. or cracked housing Note: If checks 1 through 7 Further possible causes In order to diagnose conditions do not reveal cause of hard could be: such as listed in 8, 9, 10 and steering, refer to Power Steer- 8 Sticky flow control valve 11, a test of the entire power ing System Test Procedure steering system is required. 9 Insufficient pump pressure output 10    Excessive internal pump leakage 11    Excessive internal system leakage POWER STEERING SYSTEM TEST PROCEDURE This    -section    presents    a    systematic    method    of diagnosing    and    trouble    shooting    the    power    steering hydraulic     system.          Start     with     Step     1     and     move consecutively   through   the   remaining   steps   completing every     procedure     and     if     necessary,     the     correction described before moving on. 1. Disconnect  pressure  hose  at  pump  or  gear  and connect  power  steering  analyzer  SE-2780  (Fig. 2) in series with the pressure hose. 2. Open  valve  on  analyzer  and  start  engine.  Allow power    steering    system    oil    to    reach    normal operating temperature and check analyzer connections for leaks.  Correct if necessary. 3. Check   fluid   level   in   system   and   add   fluid   as required. 4. With engine at idle, record flow and pressure. If pressure is in excess of 517 kilopascals (75 PSI), check hoses for restrictions and correct as required. 5. With   engine   at   idle,   partially   close   valve   on analyzer to build 4826 kilopascals (700 PSI) and record   flow.      Subtract   this   flow   from   the   flow recorded in Step 4.  Flow should not drop more than 3.8 1/MIN (1 GPM).  If flow drops more than 3.8  1/MIN  (1  GPM),  check  rotating  group  (cam ring,  rolls  and  carrier)  in  pump  and  correct  as required. 6. Close   and   partially   open   analyzer   valve   three times.    Record  the  highest  pressure  each  time the valve is closed. IMPORTANT Do not leave valve fully closed for more than five seconds as the pump could be damaged. CTS - 4027 - Page 6