-  Make sure that the driven
sprocket support (609) and both sprockets (506, 516) are fully seated.
 
- Pull the drive link assembly (507) toward the case at the indicated
location.
 
- Measure the distance between the case and the drive link assembly
(507):
 
| •  | If the measurement is 3.2 mm (1/8 in) or greater,
reuse the drive link assembly (507). | 
 
| •  | If the measurement is less than 3.2 mm (1/8 in),
replace the drive link assembly (507). |