Caterpillar excavator 320E LRR moving slow

[idss]

I am working on a caterpillar excavator 320E LRR serial number TFX00784 , The machine is moving slow, all attachments including
tracks, there is a Alarm in red SERVICE REQUIRED in the display, dose any know what this means and how to reset it ?

 

[8V71]

Machine could be in a derate,need to look for any active error or event codes in monitor. With that action alarm there should be an event code go into the monitor service diagnostics

 

[8V71]

Pass code for service Menu is 9992

 

[idss]

ok there are codes 3633-5,3576-5, 3575-5, 2103-5,581-5

 

[idss]

all shows unknown ECM , Current below normal, anyone can tell me where to get the service manual?

 

[Nige]

ok there are codes 3633-5,3576-5, 3575-5, 2103-5,581-5

Are those five Codes Active or Logged.?
The monitor display should differentiate between the two types of Code.
Once you confirm that I can post up some troubleshooting procedures.

Assuming they are all Active, they are as follows: -

0581-5 - Power Shift solenoid.
2103-5 - Boom circuit regeneration solenoid.
3575-5 - Pump #1 flow limitation solenoid.
3576-5 - Pump #2 flow limitation solenoid.
3633-5 - Swing Priority solenoid.

The FMI 05 for all of them relates to "Current Below Normal. FMI 05 occurs when the current through the identified circuit is below the valid range. FMI 05 most often relates to a driver circuit.

 

[Nige]

anyone can tell me where to get the service manual?

Search the internet for Caterpillar Publication reference KENR5510.
I can't see anything at the moment but that could change tomorrow.
Alternatively look HERE but make sure you're sitting down before looking at the price.........

 

[8V71]

All those codes are from the machine ECM MID299. They are all related to the solenoid bank. J2 connector on the machine ECM pin #19 & #22 are returns for those Solenoids. Two of the Solenoid returns in question use wire 739-yellow pin22 and 2 use 968-orange pin19. Look the harness over Between machine, ECM, and solenoids for something obvious to start with. Are all the codes active? Active codes will have an X stored codes will have a dash

 

[8V71]

You’re in good hands with Nige

 

[Nige]

You’re in good hands with Nige

No you ain't. Nige isn't the excavator man..........

To the OP. If you want an electrical schematic that shows Connector Numbers and their physical locations on the machine just ask.

 

[Nige]

Are all the codes active? Active codes will have an X stored codes will have a dash

That's the bit I'd forgotten about how to tell the difference..........

 

[idss]

yes ,the codes are all active, and yes can you send the schematics

 

[Nige]

Check your messages. You should have a schematic.

Attached the tropubleshooting procedure. As @8V71 said above you need to be looking for something common to some if not all of the Codes. Wires in the same harness, routed trhough the same connector, etc, etc.

 

[Nige]

And the last one......

 

[idss]

Thanks for all the help, I will be at the machine in a few days.

 

[Drborders]

I have the same problem and codes mentioned above , what was the issue

 

[Nige]

I have the same problem and codes mentioned above , what was the issue

If you have the exact same Codes Active as the OP I would suggest that you carry out the troubleshooting procedure for each one that were attached above. If you want a complete electrical schematic please post a machine Serial Number.

 

[idss]

Thanks for all the help, the problem was the J2 connection, there was corrosion from salt water, the machine working like a charm now.

 

[Nige]

the problem was the J2 connection, there was corrosion from salt water,

Not unusual in your type of climate. The main harness connectors, especially the ECM J1/J2, would always benefit from a spot of dielectric grease on each pin to assist in keeping condensation/corrosion at bay.