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Cat385 Hydr & Elec 5

13 December 2014:

5

On the left you can see the output from the valves,this is going to be connected to the oil cooler.The output from the oil cooler goes to the oil tank.On the right you see that the pipe goes first to a filter,to filter the oil.

And from the filter it goes to the tank.

On the left you can see the top panel flipped open,and acces to the bottem parts is possible this way.On the right you see the machine's plating in place,and you can also see this way,that there is not much room left anymore..... .12 Januari 2015:

Left you can see that the parts of the valve return have been disassembled and where possible the fittings have been soldered,the rest is put in place with hydraulic sealing liquid.On the right you can see the parts assembled together .

On the left you see al the valves put together ,and the oil return hoses already connected.On the right a close-up, here you can see that I made some 90 degrees output connections,otherwise the hoses will touch the pump,which is going to be right in front of the valves.

Above a view on the triple pump,it has finally arrived this week.It's a Jung pump, oil flow: 0,45 ccm/m,0,30 ccm/m,030 ccm/m .24 December 2014:

On the left you can see that there is a temperature sensor attached to the oil cooler,this sensor is connected with the reciever in the model,and the data are send to the transmitter.On the right you can see the temperature read out on the display of the transmitter.

On the left you can see al the parts that I made to assemble the e-motor to the pump.On the right you can see the base plate assembled to the pump,I also made a bearing in it,to support the pump axle,so that the toothed belt force will not be applied to the pump bearings,but on the extra bearings.

On the left you can see that the front plate is assembled,and there is also a bearing made in it.On the right you see the e-motor assembled.

On the left you can see that the pump is placed on a base plate,wich is supported by studs with vibration dampers on it.on the right you can see the pump placed on the upper carriage of the model.

On the left you can see the covers placed,funny detail is that the pump is placed on the same spot as it is on the real machine.On the right you can see a view from the side,through the openings in the cover the e-motor can take fresh air for cooling.

On the left you can see that there is not much room left....On the right a view from above .30 December 2014:

On the left you can see the connections for the input side of the pump.on the right you can see that I made tubes from copper to make a tight bend towarts the oiltank.

On the left you can see the tube underneath the pump straight to the tank.On the right you can see that it all comes very close together in the excavator.

above you can see the connections of the pressure side of the pump,there are two connectors,one for the pressure line to the valves, the other is for the pressure gauge.03 Januari 2015:

On the left a close-up of the fuse panel.On the right you can see the left hand side of the machine,there is placed a fan on the left,wich keeps the pump motor controller cool,that is sitting on the right of the fan, and the big pcb is the backside of the BEC power supply.

On the left you can see that I made a panel, wich holds the speaker,the sound module pcb and the fuses,the panel is going to be attached to the backside of the valve panel with a hinge,so for maintenance on the valves it can be flipped open.Also for maintenance use, the fuse panel can be removed,so when the valve panel needs to be removed from the excavator,the wiring can stay in place .On the right you can see the panel placed.Also the speaker is placed and the soundmodule pcb.

On the left you can see that the pressure lines from the pumps to the input of the valves are also connected.The hoses with the quick connectors are for connecting the pressure gauges

Left: Last week I did get the extended manual in electronic version, and in German Language,so I could programm the transmitter/reciever.Thanks to Scale-Art for this service !On the right you can see that I made the servo wiring longer,and at the same time I added a yellow shrink tube to it,so I could write the number on it, of the socket where it goes in the reciever.

After that,I connected all the servo's and programmed them all, and also the pump motor is programmed now.The servo's:In idle mode of the sticks (no hydraulic function is asked) the pressure regulation valve is open,so the oil without pressure, can flow from the pump back to the tank.When a hydraulic function is activated,the pressure regulation valve closes,so pressure can be build up to activate the hydraulic function.The pump-motor:The pump-motor can be given a pre-set rpm from 0 to 100% by a knob on the transmitter.So if the setting of the knob is 1/4 max rpm,with the mixing in the transmitter the rpm can increase to a higher programmed value,when a hydraulic function is activated,and so saving battery life.19 Januari 2015:

On the left you can see that all the hydraulic lines are connected from the central connection to each valve.On the right you can see the suction lines from the tank to the pumps.