Procedure In Replacement Of Primary And Secondary Pulley, Or In Replacement Of Primary Pulley, Secondary Pulley And VARIATOR Chain
WARNING: This page is about a different variant/trim than selected.
- Measure depth "Lp" from the ST upper face to the primary pulley bearing catch surface at several points and calculate the average.
ST 499575400 GAUGE
- Measure the depth "Ls" from the ST upper face to the secondary pulley bearing catch surface at several points and calculate the average.
ST 499575400 GAUGE
- Calculate the following formula.
Calculation formula:
T (mm) = B - A + Lp - Ls -28.602
[T (in) = B - A + Lp - Ls - 1.126]
T: Pulley alignment
A: Specified primary pulley dimension
B: Specified secondary pulley dimension
Lp: Depth from the ST upper face to the primary pulley bearing catch surface
Ls: Depth from the ST upper face to the secondary pulley bearing catch surface
28.602 mm (1.126 in): Constant
Pulley alignment T mm (in) Thickness of shim mm (in) 0.05-0.049 (0.002-0.002) No shims 0.050-0.149 (0.002-0.006) 0.1 (0.004) 0.150-0.249 (0.006-0.010) 0.2 (0.008) 0.250-0.349 (0.010-0.014) 0.3 (0.012) 0.350-0.449 (0.014-0.018) 0.4 (0.016) 0.450-0.549 (0.018-0.022) 0.5 (0.020) 0.550-0.649 (0.022-0.026) 0.6 (0.024) 0.650-0.749 (0.026-0.029) 0.7 (0.028) 0.750-0.849 (0.029-0.033) 0.8 (0.031) 0.850-0.949 (0.033-0.037) 0.9 (0.035) 0.950-1.049 (0.037-0.041) 1.0 (0.039) 1.050-1.149 (0.041-0.045) 1.1 (0.043) - Select one to two shims so that the total thickness meets the value obtained from step 3).
Part No. Shim thickness mm (in) 32451AA050 0.1 (0.004) 32451AA060 0.2 (0.008) 32451AA070 0.3 (0.012) 32451AA080 0.4 (0.016) 32451AA090 0.5 (0.020) 32451AA100 0.6 (0.024)