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ON-VEHICLE SERVICE TSB Revision POWER STEERING 37A-15 CAUTION • Loosen the nut from the ball joint instead of removing • Hang special tool MB991113 or MB990635 with ropes to 1. Use special tool MB991113 or MB990635 to disconnect the ball joint. 2. Move the ball joint stud several times and install the nut on the stud. Measure the ball joint breakaway torque with Standard value: 0.5 − 2.5 N ⋅ m (4.4 − 22.1 in-lb) 3. If the breakaway torque exceeds the standard value, replace the tie rod end. 4. If the breakaway torque is under the standard value, check the ball joint for end play or ratcheting. If no end play or 5. Tighten the nut to the specified torque and install a new cotter pin. Tightening torque: 29 ± 4 N ⋅ m (21 ± 4 ft-lb) STATIONARY STEERING EFFORT CHECK M1372001700075 1. With the vehicle stopped on a flat and paved surface, turn the steering wheel to the straight ahead position. 2. Start the engine and check the engine idle speed. Standard value: 3. Attach a spring scale to the outer circumference of the steering wheel and measure the steering force required to Standard value: ACX01123AB NUT BALL JOINT CORD MB991113 OR MB990635 ACX01129 AB MB990326 ENGINE ENGINE IDLE SPEED r/min 2.4L Engine 750 ± 100 3.0L Engine 700 ± 100 AC000987 |