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Caterpillar 730 Off-Highway Truck NO START

Discussion in 'Other Earthmoving Equipment' started by zx240lc-3, Oct 30, 2017.

  1. zx240lc-3

    zx240lc-3 Member

    Sep 22, 2016

    We had a Caterpillar 730 off-highway truck go down last week. There was a fuel line that rubbed through from the tank to the primary filter. The truck ran out of fuel and since replacing the line and both fuel filters we have not been able to get it started again.

    We have bled the system as best we can and have 70psi fuel pressure after the transfer pump at the secondary fuel filter base. I also replaced the fuel check valve in the secondary filter base and that did not help and did not change our fuel pressure at all. The motor is a C11. We get no smoke out the exhaust pipe and we have tried running it off ether to try to get the air bled from the system and out of the injectors but once the ether runs out the truck just dies.

    What can we do as a next step? it almost seems like the ECM isn't firing the injectors. I have no way of checking the codes but today i noticed there is a little book icon coming up on the display. Anyone with experience dealing with one of these? I am not sure why simply replacing the line is causing us so much trouble getting it going again. I've herd these can be a b!@Tch to get going again but maybe we are missing a simple step somewhere.

  2. Nige

    Nige Senior Member

    Jun 22, 2011
    Can you post a Serial Number and maybe a photo of the dash panel showing which indicator on the display is illuminated..?
  3. Bls repair

    Bls repair Well-Known Member

    Jan 21, 2017
    Equipment operator,mechanic
    S E Pa
    Did you crack the injector lines? I do not recommend using starting fluid.