HARRIER SERVICE MANUAL PART -1

STEERING 8 COMPLAINT AS MAY BE NARRATED BY CUSTOMER HARD STEERING  Won't turn  Not enough power assist  Lockup/ stuck up  Wont turn unless moving  Sticky/ binding CONDITION POSSIBLE CAUSE REMEDY A) Present during cold. B) Sensitive to steering, wheel speed. C) More prevalent when steering fast. Some power steering pumps have temporary state, when pump element vanes are sticky. Increase engine speed briefly to correct the problem. Air drawn in due to insufficient fluid per filling and bleeding procedure. Add fluid and bleed the system. Air being sucked in through cracks or loose fittings/hose / pipes in suction line. Correct/ Replace the crack/ loose fitting, hoses, pipes in suction line fill and bleed the system as per procedure. Flow from the pump is less than the minimum recommended for steering gear. Repair (or) replace the Pump. Steady state fluid pressure (with hands off steering wheel) at idling with shut off valve fully open is high, due to clogging/deformation of feed and return hydraulic lines. Clean/replace the clogged/deformed hydraulic lines as required. D) Present only in one direction of turn Unequal tyre pressure. Inflate both steered wheels equal specified pressure. Feed pipe to concerned cylinder is deformed. Replace the deformed feed pipe. Excessive internal leakage in one direction of turn only (verify with internal leakage test.) Repair or replace the steering gear. E) Present in both the direction of turn Low tyre pressure. Inflate both steered wheels to equal specified pressure. Low hydraulic fluid. Check and rectify external leak Improper rotation or binding in column related parts. Determine by inspection what interference or condition is causing binding and correct the problem. Low pressure or flow from Pump. Check pump’s performance. Repair or replace as required. Faulty steering joints. Replace the joints. Faulty steering link components like inner/outer ball joints etc. Determine by inspection. Identify and replace the defective steering link component. Bent rack shaft. Replace RAP assembly. Feed pipes to both the cylinders deformed. Replace the feed pipes. Excessive internal leakage. Repair or replace the Steering gear as required.