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DISCUSSION FORUMS : Forkliftaction.communicate
Forum: Mechanical Troubleshooting
Brand: Toyota - Model: 7FGCU25
Number of messages: 3

START MESSAGE:
me_y
Ontario, Canada
While setting relief pressure for the lift circuit on a 7fGCU25 the guage reads around 450psi then while continuing to raise relief pressure setting the system spikes up from 450psi to over 5000psi  with the eng. rpm maxxed out and the lift cylinder extended, then blows the back of the pump offwithout even screwing in the relief valve.  Anyone else ever experience a similiar scenario? I completely drained and cleaned the circuit and reservoir, replaced pump and whole relief valve only to have the same issue repeat itself.    Any insight would be greatly appreciated.

Posted 4 Oct 2010 10:38 PM Reply  Report this message
REPLIES: Sort replies by
toyzilla
Texas, United States
there is a procedure for setting pressure on 7's. has to be done in order and if you are using the oem test port you have to use the tilt lever to get a reading on the lift circuit. do you have the instructions?

-------------------------
easier to ask forgiveness than to ask permission.

Posted 5 Oct 2010 10:00 AM Reply  Report this message
Prentice
Ontario, Canada

Are your parts OEM or Aftermarket????

Posted 5 Oct 2010 09:49 PM Reply  Report this message

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