Ex100-2 Slow hydraulics

[Chris1113]

Is there anything wrong with the connector besides the terminals at one end protrude a bit further out than the others ?

Heres that shhhh noise I was hearing. Was able to replicate it. You can see in the video how much I have to adjust the connector

Honestly not sure. I thought you had a good conclusion with the arc gouging. Some of those smaller pins probably causing issues as well

 

[Chris1113]

Heres that shhhh noise I was hearing. Was able to replicate it. You can see in the video how much I have to adjust the connector

Honestly not sure. I thought you had a good conclusion with the arc gouging. Some of those smaller pins probably causing issues as well

Going to inspect more soon. Home shortly

 

[Chris1113]

Well no i dont think there is besides the shorter pins

 

[Chris1113]

@Diesel Dave

 

[Chris1113]

Only two things im seeing on this

 

[Diesel Dave]

Only two things im seeing on this

That sucks.
Have another look around where the missing machine serial # tag was below the cab , see if there are any numbers stamped in the frame.
.

 

[Chris1113]

That sucks.
Have another look around where the missing machine serial # tag was below the cab , see if there are any numbers stamped in the frame.
.
View attachment 337795

Ill keep looking right now having a bit a fun since its fixed. I narrowed it down to either this wire im pointing at or that side

 

[Chris1113]

That sucks.
Have another look around where the missing machine serial # tag was below the cab , see if there are any numbers stamped in the frame.
.
View attachment 337795

I think it might be below the boom on the frame. I have to double check. I got my Dr.zx in today but the software that came with it is out of date.

Do you know if I can download the latest software online anywhere?

 

[Diesel Dave]

I think it might be below the boom on the frame. I have to double check. I got my Dr.zx in today but the software that came with it is out of date.

Do you know if I can download the latest software online anywhere?

No help with DRzx here.

 

[Chris1113]

No help with DRzx here.

Tried looking below the boom for the serial number, couldn’t find it. Might need to get a power washer

 

[mg2361]

Serial number should be here.

 

[Chris1113]

Serial number should be here.

View attachment 337827

The plate isnt there anymore but looks like there might be another below the one on the cab? Ill check.

Anyway to tie the manufacturing date and serial of the pump to the current model?

 

[Chris1113]

That whole side I was pointing at is responsible for those sensors and power/ground to the PVC.

Not sure if its one wire, seemed to be three

Either the box wasnt on causing max flow and engine stall with hydraulic input?
Box was on but hydraulic was slow
Box was on, heard a audible clunk and felt below my feet when i got it the wire position just right like something was turning on - which fixes it

 

[Diesel Dave]

For information only , at Friday parts all 3 Hitachi PVC part #’s sub to 1 aftermarket # .

 

[Chris1113]

For information only , at Friday parts all 3 Hitachi PVC part #’s sub to 1 aftermarket # .

I could try to look at the EC later maybe has a model number. Those look to be oem. Last thing i can think of is open up the pvc to see if theres anything inside

 

[Diesel Dave]

I could try to look at the EC later maybe has a model number. Those look to be oem. Last thing i can think of is open up the pvc to see if theres anything inside

There is only one EC part # listed in the Hitachi parts catalog.

 

[Diesel Dave]

Is there a specific model number for the PVC? I bought one on ebay and the seller messaged asking about what the model number was off my PVC. Its for a ex100-2 so not sure if it matters

I wonder if the eBay seller is offering a generic EX100-2 PVC similiar to Friday parts.
If so, the ebay selller is wanting to confirm the machine is actually an EX100-2 and not something else .
The EC part # is unique to an EX100-2 so an EC part # may have some value if you can find it.

 

[Chris1113]

I wonder if the eBay seller is offering a generic EX100-2 PVC similiar to Friday parts.
If so, the ebay selller is wanting to confirm the machine is actually an EX100-2 and not something else .
The EC part # is unique to an EX100-2 so an EC part # may have some value if you can find it.

PVC Controller 9131576 9116368 for Hitachi EX120-2/3 EX100-2/3 Excavator CPU Box | eBay

Available Part Number: 9131576, 9104907, 9116368, 9131579, 9116366, 9104905, 9133701. Application model: Hitachi EX100-2 EX120-2 EX100-3 EX120-3. Maintenance service: repairing for monitor, ECU computer and hydraulic pump; monitor hours resetting, etc.

www.ebay.com

Heres the link to what I bought

Ok heading home ill check when i get there

 

[Chris1113]

Welp valve block just gave out. Its got a crack

 

[Diesel Dave]

Welp valve block just gave out. Its got a crack

Don‘t see the exact crack here , can you clean it and re post a picture ?