hi to all, i need some help with a kobelco sk120-7 lp-08549. it has started to stall the motor at low revs & make the motor work very hard at working revs when running the dipper arm ram in,all good ram out, left & right tracks all good ,boom up/ boom down all good bucket & swing all good, ram out & all combinations all good, but dipper arm in no left track, or swing. it has kpss, seems to make no difference when kpsss is turned off, the computers have been removed & checked out ok, it seems to be a stuck hydraulic valve or faulty pilot system. where & what should i check next?? cheers matt
Mate are you sure its a -7 not a -6E?
the tag reads sk120-7 serial- LP-08549 but i will recheck what is stamped beneath the boom mount
Mate i must admit i have never seen a -7 kobelco in australia or china and i have no parts books for them either.
the tag is not a genuine kobelco tag, the serial number stamped below boom mount is lp-08549. that seems to be about a series 3
so mate did u get ripped off when you brought the machine? when did you buy it and what did the sales person tell you?
its a kobelco sk120-3 serial no -08549