TIGOR EV

SUSPENSION 38 9.8. PROCEDURE FOR CHECKING THE BALL JOINT PLAY LOWER ARM: It is recommended that the axial play on the ball joints should be checked as per the procedure given below before removal of the ball joints. Note: Please check tightening torque of all nut & bolts on the ball joint mounting bracket and ball pin nut before checking the ball joint play. The front lower arm ball joints play should be checked at every 10,000 kms as per the procedure given below. Procedure: a) Apply the parking brakes and remove front wheel by jacking up the car with the help of a floor jack or by lifting it on a two pole hoist b) Mount the dial gauge with magnetic stand on the brake disc. Important: Note that the Dial Indicator plunger axis should be perpendicular to the ball joint bottom face for the correct reading. c) The tip of the dial gauge should be in contact with the lower arm ball joint bottom plate. (With preloading of about 1mm on the dial gauge). d) Place another jack under the lower arm by gently lifting up the lower arm. The jack is to be placed under the lower arm. e) As the jack is lifted slowly spring in the ball joint gets fully closed (solid) at a load of about 100 kg. And then the dial gauge needle will start moving and indicate the play in the ball joint. f) Keep on increasing the load by lifting up the lower arm till the needle stops moving further. Note the reading. This should not be more than 0.5 mm. Do not further load the ball joint after the needle movement stops. g) If the reading found is in excess, replace ball joint.