Volvo G990 Grader

[Stefan]

Found some more pictures, and, since Nathan amongst others (me included ) likes to see the process of making parts, I will not withhold them.

So this is how I aligned the piston rod with its ring head during soldering. Note the small ring of solder paste around the piston end. I found the result to be rather sensitive to the amount of solder paste. Too little, and the solder did not fill the joint properly. Too much, and the solder spreads all around the correct place. What you don´t see in the picture is the small stub (1.5 mm, 1/16" long) at the end of the rod inserted in a corresponding hole in the ring. For maximum strength the fit should be loose to leave a ring shaped gap for the solder to enter. I made the hole about 0.15 mm (6 "thou") oversized.


The next pic I just shot to show how the solder was added. I´m not so good at adding the right amount manually for these delicate jobs, so I bent a piece to fit around the rod and stuck it in the paste. When the water in the paste boils those small pieces of solder tends to move away from the corner, so have some pointed object at hand for pushing them back.




Stefan

[RCP57]

Thanks very much for posting that! You've just taught me how to do something and I appreciate it!

Reg

[Stefan]

Thank you for the appreciation, Reg!

Meanwhile I made adapters for the chain wheels.





Using off-the-shelf clamping sets.


Thanx for looking
Stefan

[Stefan]

Here some pics of the drawbar assembly:

The scale thickness of the side plates is 2,5 mm, but only 3 mm (1/8") was available, so I removed 0,5 mm along the edges. Now they at least look to be to scale.












Luckily I found stainless balls of the correct to scale size (18 mm). They were glued with epoxy resin to the stub.
















Thanks for looking.
Stefan

[JAMMER]

This is another amazing excellence scratch build. I know you milled some metal off to make thing perfect but only you would know but then again if you are like me that would drive me craze knowing I didn't fix it. Ed