Welcome to MLF Kelly. 
The only diagram I found was in the owners manual on page 26 from Sears Parts Direct website:
Owner's Manual - POULAN Lawn, Tractor PB195H42LT - ManageMyLife.com
The only diagram I found was in the owners manual on page 26 from Sears Parts Direct website:
Owner's Manual - POULAN Lawn, Tractor PB195H42LT - ManageMyLife.com