![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-21999-wp_20150529_001.jpg)
Lower drive pulley OD diameter 240mm
Dual pulley on engines output shaft
for cutter belt OD 107mm
for drive belt OD 67mm
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-22000-wp_20150529_006.jpg)
Dual pulley on engines output shaft
Belt centres 38mm
Total length across 65mm
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-22001-wp_20150529_002.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-22002-wp_20150529_003.jpg)
This handle when pulled down, pulls the engine back tightening the cutter belt.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-22003-wp_20150529_004.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/05/full-4730-22004-wp_20150529_005.jpg)
SP drive handle & linkages.
Handle moves tyre treads to meet the drive dogs, which are always spinning when the engine is running.