KOMATSU Excavator from Malaysia

[izzzul]

Thanks everyone, glad that you accepted me to join this page..

Lil,
I have the same fear, tested on the flat floor in the house shows no sign of sweat at all, see below:

http://www.youtube.com/watch?v=Y6DSmQBOrdk

But when we tested them on extreme surface, the gear is breaking apart, no problem to the motor, but gear is a total damage... at this point my excavator total weight is about 90% of full weight, see pic below:


Per your advice, i should go with bigger and better strength bewel gears, had ordered a some for testing this week. we are using TRUCK PULLER, LRP 5A BEC

As for hyd powerplant..if you notice, i'm using industrial hyd pump, attached to powerful brushless motor, spec for 100bar max!!, but tested to 17bar with no issues/leaking, using teflon seals, nilon pipes. My only prob is control valves, anyone has some advice how i can improve them?

Prob is servo kindda stuck and slow respond/fluid speed, any better design that we can try..? will upload the valve pic later..

[ihbuilder]

welcome Izzzol your excavators look great . with a little beefing up of the drive you should have some fine working models 2 things I notice I like to find the surce of : 1) the pump and 2) the double pitch attachment chain . Looking forword to updates

Steve

[izzzul]

Originally Posted by ihbuilder

welcome Izzzol your excavators look great . with a little beefing up of the drive you should have some fine working models 2 things I notice I like to find the surce of : 1) the pump and 2) the double pitch attachment chain . Looking forword to updates

Steve

Thx Steve..pump is industrial type ones, commonly used for hyd machines, will get more details to send you in couple days...
chain bracket..i can source this locally, quite cheap stuff, not sure whether it sell elsewhere..looking for some old pictures to share here, later..

Azizul