Hi Mike, and sorry for the delay in replying, I must have missed your post.
Here is a pic of the set-up of the chain adjuster, its just an angled slot that the adjuster slides up and down in and secured by the nut and bolt when the correct tension is reached...which is roughly 1/2" play in the primary chain, taken from the middle of the chain. wink

There is a piece of metal strap on the inside of the mower frame that the bolt passes through to stop dirt, water and grime getting into the chain-case through the slot. wink

You will see it here, Part Numbers: 35,22,23,39,34,and 33.
Click HERE

[Linked Image]
cheers2

Last edited by Deejay; 11/02/14 04:51 PM. Reason: Added Detail
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin