When a spring scale is used
- Carry out the confirmation before the looseness check with the same manner as the check using a push-pull gauge.
- At the position that is 25 mm (1.0 in) above from the wheel center, bind the tire and the wheel rim with a cord for both the front and rear sides, and fix them with a tape not to loose vertically.
- Set the spring scale to the cord bound as above. At this time, the point to pull shall be in the dimension between the "Position C" and "Position D" by wheel size, and the position on the vehicle front side shall be the "Position C" and the vehicle rear side shall be the "Position D".
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Wheel size C - D dimension 16 inches 480 - 495 mm (18.9 - 19.5 in) 18 inches 525 mm (20.7 in) - To stabilize the relationship between the load and fluctuation, pull with the specified load by wheel size in the order of "Position C", "Position D", and "Position C" using the spring scale. Note that the pulled load on each position shall be extracted.
Wheel size Specified load 16 inches 120 N 18 inches 80 N - Using the spring scale, carry out the procedure below to read the value on the dial gauge and calculate the looseness.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
NOTE: The +/- sign acquired with the calculation result shall be used as it is.- While pulling the "Position D" with the specified load by wheel size, read the values on the dial gauges in the "Position a" and "Position b". The values on the dial gauges at this time shall respectively be "aD" and "bD".
Wheel size Specified load 16 inches 120 N 18 inches 80 N - Remove the load at the "Position D". Then while pulling the "Position C" with the specified load by wheel size, read the values on the dial gauge in the "Position a" and "Position b". The values on the dial gauges at this time shall respectively be "aC" and "bC".
Wheel size Specified load 16 inches 120 N 18 inches 80 N - Make calculation taking the value differences of the dial gauge positions a and b which were read while pulling the "Position C" and "Position D" as each fluctuation.
- Fluctuation of the dial gauge position a: aC - aD
- Fluctuation of the dial gauge position b: bC - bD
- Calculate each fluctuation difference of the dial gauge positions a and b acquired above for looseness. Perform the procedure above twice.
Fluctuation of the dial gauge position a - Fluctuation of the dial gauge position b
- Calculate the average of the looseness calculated twice.
- While pulling the "Position D" with the specified load by wheel size, read the values on the dial gauges in the "Position a" and "Position b". The values on the dial gauges at this time shall respectively be "aD" and "bD".
- If the average exceeds the standard value, check the ball joint rotation torque. (Refer to BALL JOINT DUST COVER CHECK
).
Standard value: Within ± 2.0 mm (0.08 in)
NOTE:
Measure the tie-rod looseness on the right side and left side respectively.