Measure the pump relief pressure at idle with T/N 07406-0010001 (see PUMP PRESSURE TEST

YES -Repair or replace the lines. NO -Faulty valve body unit. 8. Check the flow control valve (see step 10 ) for smooth movement and leaks.

Is the flow control valve OK?

YES -Faulty pump assembly. NO -Faulty flow control valve. 9. Check the cylinder lines A and B for deformation (see STEERING LINKAGE AND GEARBOX

INSPECTION ).

Are the A or B lines deformed?

YES -Replace the lines. NO -Go to step 10. 10. Check for a bent rack shaft or misadjusted rack guide (to tight).

Is the rack shaft bent or the rack guide adjusted too tight?

YES -Replace the rack shaft or readjust the rack guide. NO -Faulty valve body unit.

STEERING WHEEL ROTATIONAL PLAY CHECK

1. Turn the front wheels to the straight ahead position. 2. Measure how far you can turn the steering wheel left and light without moving the front wheels.  If the play is within the limit, the gearbox and linkage are OK.  If the play exceeds the limit, adjust the rack guide (see RACK GUIDE ADJUSTMENT ). If the play is still excessive after rack guide adjustment, inspect the steering linkage and gearbox (see STEERING LINKAGE AND GEARBOX INSPECTION ).

ROTATIONAL PLAY: 0-10 mm (0-0.39 in.)