lift pump on 743

[ddsprint]

So tell me this, is there anyway to test a lift pump, my machine dies after running, pump and runs for a bit and dies again, have already blown out lines and flushed tank 3 times, bobcat dealer says lift pump or injector pump, the injectors are new and rebuild, thanx for all input,

 

[OldMachinist]

Pressure should be 4-5psi