Komatsu 45-1 grab rotator

[elfinwood saws]

I,ve got a spare grab and rotator and i would like to fit it to a Komatsu 45-1 but i will be one service short? So is there a way around this problem?

[Matthew Storrs]

I think its a case of having to use either the crowd ram or offset boom function- put a t junction into the piping for either function and then turn the tap when you want to use the grab and the controls for either bucket curl or offsetting boom will spin/close the grab. You won't need bucket curl anyway and not likely to need offset using a rotating grab anyway...

[tommytopsoil]

I think its a case of having to use either the crowd ram or offset boom function- put a t junction into the piping for either function and then turn the tap when you want to use the grab and the controls for either bucket curl or offsetting boom will spin/close the grab. You won't need bucket curl anyway and not likely to need offset using a rotating grab anyway...

 

This will be fine if you hang the grab off a swing-link on the end of the boom and fully retract the bucket cylinder. Otherwise a change-over valve with a switch on a joystick to activate.

It looks like you have no auxiliary circuit so I take it you are already thinking of using the bucket circuit for one of the services? If so then just run a line down the boom from the offset for the other as Matthew says.