Is it normal for the blade control lever to be the right handle? The steel lines connect with the two center ports on the front unit and the outside ports are blocked off. Really don't want to cross the linkage and the hard lines can't be moved so is this factory? Going to Ebay tonight to look for the 44 manual. If it matters it has the tank on the hood for scraper use I understand. 

Vance Nickerson 

I downloaded and looked at them and it appears hooked up correctly I'll just take the torch and heat and twist the control rods to swap them so the left handle controls the blade.

It's a dual handle setup for scraper use. The left handle is for the blocked ports on the far right and left of the unit. The lines have been removed and some block off plates installed. I can message or email pictures but don't have the ability to downsize them at the moment.

What's the concern?? Normally the right hand lever controls the blade which uses the two inner pipe connections on top of the #44 control.

Just wanted to be certain that's the way it is supposed to be. I was guessing the front blade control would have been the left handle. If its correct I'm happy thank you Old Magnet. Bought this as a project and have found it to be pretty useful around the farm.

Now that I know it's hooked up correctly I would like to see if anyone has the piping to add the extra service to the rear as I hope to locate a scraper in the Texas area to show behind it. I believe it could be made up with schedule 80 pipe and work fine but if I can find original tubing it would look better. Having spent several hours working it filling in a pond and leveling some other areas it's proven its worth. My biggest issue is going to be moving the seat back and up to suit my 6'6" 360lb frame with a little more room. Thanks to all of you over the years who have chimed in with awesome advice. My first Caterpillar project was a 22 that was way more than I expected and without a blade wasn't much more than a trailer queen when finished. Enjoying this D4.

Mine is the side mounted fuel tank but I was thinking along the same lines. Thanks