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Cat385 Hydr & Elec3

Left : to make a level gauge,I need to make some special nuts with thread in it all the way.So first I made some regular nuts,and soldered a plate on them,wich is later made further in form on the lathe.Right you can see the gauge ready,wit the special made nuts the o-ring gets some pressure to make sure it is leak-free.

Left a sideview.Right a view from the bottem,the plates with the bended fixing holes ,that are bolted to the tank, are being used to fix the tank to the upper machine bottem.

Above you can see that the front and back sides have been attached to the tank,and the tank is placed on the machine,to see how it is going to look.

Left you see the soldering of the fins to the tubes,keeping the distance between the fins with aluminium strips.Right you can see that the radiator is finished.

Left you can see the gasoline fill cap with lock.

Left you see the parts of the fill cap,inside I make an air filter on the tank,so only clean air can enter the tank,and the tank can breathe through the filter.Right you can see the parts soldered together.

Left you can see the inspection lids that are going to placed on both the tanks,also some little details for the hydraulic tank.Right you can see that the parts are soldered on the tank.

Above you can see the tanks on the real machine.

Above you can see the tanks on my model.

Above you can see some close-ups of the tanks.07 May 2014:

Left you can see the line for the fuel level detection fitted,like it is on the real machine.

Left: first I'm making some ribs with the milling machine on a square piece of brass,this will become the tops of the filter housings.Right you see all the parts ready for soldering together.

Above you see the filters ready,and glued with 2 K glue on the tank.Also fitted are the ribs on the long vertical part of the filters from 1 mm brass wire,and the little bolts M1.2 ,they are glued with 10 sec. glue.

Left you can see how it looks on the upper carriage of the excavator.

12 May 2014:The construction of the oil cooler.

Left you see a block of brass,in wich I first drilled some holes,after that I cut the strips from the block,dat will become the radiator fins.Right you can see all the parts ready to be soldered together.

Left you can see that I made a protection for the fan.Because the lower part of the fan is not visible,I did not make more protection there,so the air flow is not disturbed at that point.right you can see the cooler placed on the model.The cooler is going to be temperature controlled,so the oil wil not get to hot or to cool.

To be continued.

Left you can see the back side of the cooler,the lower part is going to be covered with a metal plate,as you can see on the picture on the right of the real machine.29 May 2014:

Left you can see a pump that is used to pump the suspension on bikes,it can reach 20 Barr.I am going to use this pump to test my hydraulic lines on the model for leakage.on the background you can see the device I made,to connect the pump to the hydraulic lines.Right you see that I used a car tire air-valve to connect the pump to.

On the left you can see a top view,I also made a pressure relief valve on it,and a gauge to read the pressure that is applied.On the right you can see the unit under pressure,on the output I made a hose with a end-connection to it.

Ther was a little problem,the oil return hoses need to be clamped a little,but there are no clamps for sale at this size,so I made them myself.On the left you see a piece of brass,and a brass tube,in wich the hose fits perfectly.On the right you can see the piece of brass after drilling the holes,and put some screw-thread in it.

Left you can see the brass pieces soldered to the brass tube.On the right you see the result after cutting it into pieces,und deburring.

On the left you can see how the clamp is going to sit on the hose,and keep it in place

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