OPERATION CHECK |
1.Stop the engine from the idle state. |
2.Check that the drive belt are not protruding from the pulley width of drive belt auto-tensioner. |
3.Remove the drive belt (Refer to ). |
FUNCTION CHECK |
The drive belt auto-tensioner can be checked whether it is in good condition by checking
its tension. |
<When the vibration frequency is measured: Recommendation> |
1.Check the tension of the drive belt (Refer to ). |
2.Connect special tool microphone assembly (MB992082) to special tool belt tension meter
(MB992081) of special tool belt tension meter set (MB992080). 3.Press the "POWER" button to turn on the power supply. 4.Press number key "1". Check to ensure that "No. 01" appears on the upper left of the display and that the following numeric values are displayed for individual items ("M", "W", and "S"): M 000.9 g/m W 010.0 mm/R S 0100 mm
(1) Press down the "MASS" button till the belt mass select display appears. (2) Press the "UP" or "DOWN" button to select "01 1.5GT 0.9" and press the "MEASURE" button to decide it. Check to ensure that "M 000.9 g/m" is displayed. (3) Press the "WIDTH" button to change to the belt width input display. (4) Press number keys "0", "1", "0", and "0" sequentially, and press the "SELECT" button to apply them. Check to ensure that "W 010.0 mm/R" appears on the display. (5) Press the "SPAN" button to change to the span length input display. (6) Press number keys "0", "1", "0", and "0" sequentially, and press the "SELECT" button to apply them. Check to ensure that "S 0100 mm" appears on the display. 5.Press "Hz" button twice to change the display to the frequency display (Hz). |
6.
7.Press the "MEASURE" button. 8.Gently tap the middle of the drive belt between the pulleys (the place indicated by the arrow) with your finger as shown in the illustration. 9.Check that the vibration frequency of the drive belt is within the standard value. Standard value (Reference): 115 - 156 Hz
11.If not within the standard value, replace the drive belt auto-tensioner (Refer to ). |
<When tension is measured> |
1.Check the tension of the drive belt (Refer to ). |
2.
Standard value (Reference): 234 - 421 N 3.If not within the standard value, replace the drive belt auto-tensioner (Refer to ). |