southernman13
Senior Member
may have bad Hitachi main pump. HPV 102GW-RH23A had deal check it out. 3500 psi. Relief valve all the way in. Said could have broken spring. Purchased used machine. No pump noise or metal showing in any filters anywhere. Weak drive and will barely lift the tracks off ground. If you hit boom out while trying to lift tracks off ground it will jump and lift tracks with ease. Dealer talking about replacing main relief valve and checking pump pressure. Pump rebuildable or worth rebuilding. Etc. thanks