7130 low hyd flow

756puller · Feb 23, 2009

i have a 7130 at work that has low flow out all hyd remotes, i have gone thru all the tests listed in the service manual, and i have just replaced the pump, i have the cables off the flow controls and can still only get 17 gpm any ideas what to look for?

JJK · Feb 23, 2009

I don"t know what tests you"ve done but is the suction screen clean, tips in the couplers not hammered out, compensator on the pump working like it should?

756puller · Feb 23, 2009

yes i cleaned the suction sccrren and just set the comp before i ran the flow rater

JJK · Feb 24, 2009

What is your high pressure standby set at? It can be set as high as 2900 psi.

756puller · Feb 24, 2009

the high pressure standby is set at roughly 2800 psi, i have the brakes steering and 3 pionnt caped off right now and nothing hass changed yet, i pulled all 4 remotes at once, 2 3 and 4 work the same way but when i pull on 1 the syetsm just dies off

JJK · Feb 24, 2009

#1 remote has priority and the other remotes will drop off until #1 is satisfied. Slow #1 down and the others should pick up. I assume that all the flow controls on the valves are free to turn and are turned to the max position. Did you have the flow control spools apart? Make sure the springs under the spool aren't broke and the little roll pin for turning the spool haven't broke off and the ends started floating in the system somewhere and that ALL the orings are good. I'd start on #1 first or just go through the whole valve stack and be done with it. It's your overhaul! Keep me posted if you could please.

7130 low hyd flow

756puller

Member

JJK

Member

756puller

Member

JJK

Member

756puller

Member

JJK

Member

Similar threads