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It's very slow is komatsu pc220-7. Excavator pc220-7 serial…

Customer Question

Hello, it's very slow...

Hello, it's very slow is komatsu pc220-7

Mechanic's Assistant: Hi. What is the complete model and serial number of your machine?

Excavator pc220-7 serial 67693

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

Yes am fixing it my self,I've changed the pilot pressure valve and solenoids.

Mechanic's Assistant: Is there anything else the Equipment Mechanic should know before I connect you? Rest assured that they'll be able to help you.

Nothing

Submitted: 3 months ago.Category: Construction and Road Equipment

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Answered in 8 minutes by:

2/20/2023

Mechanic: Field Tech, Technician replied 3 months ago

Field Tech, Technician

Category: Construction and Road Equipment

Satisfied Customers: 411

Experience: Expert

Verified

Hello and thank you for using Just Answers

Customer reply replied 3 months ago

Hie.Can we use WhatsApp?We can talk here by just typing

Mechanic: Field Tech, Technician replied 3 months ago

No sorry that's against our policy I'm an independent contractor for just answers and need to adhere to the policies. But we can talk here in the chat feed and if you see an offer to talk on the phone that's an automated offer if you want to talk on the phone let me know and I'll send you an offer it does cost more but I can set the price on my side I think we can probably do this over the chat feed though

So is it just drive that slow or all your functions slow?

Customer reply replied 3 months ago

All functions are slowIt's late at night now, will call tomorrow when I'm by the machine

Mechanic: Field Tech, Technician replied 3 months ago

Okay I will look over the service manual for your machine and try to send you a link for it too will come up with a reason this might be going on and what we can do to test it have a good evening

Customer reply replied 3 months ago

Thank u

Mechanic: Field Tech, Technician replied 3 months ago

Your welcome

Mechanic: Field Tech, Technician replied 3 months ago

https://truckmanualshub.com/komatsu-excavator-service-workshop-parts-manual-pdf/

Mechanic: Field Tech, Technician replied 3 months ago

I would check your LS pressure which is what's going to stroke your pump there is a relief valve for it I'm trying to get you some more details on where it's located and how to adjust it

Customer reply replied 3 months ago

Okay

Mechanic: Field Tech, Technician replied 3 months ago

Your manual in this link is marked pc200-6 workshop manual

Mechanic: Field Tech, Technician replied 3 months ago

This section of the book talks about your LS system these diagrams show you where the LS relief valve is at

Screenshot_20230221-045526.pngScreens...png Screenshot_20230221-045545.pngScreens...png Screenshot_20230221-045722.pngScreens...png

Mechanic: Field Tech, Technician replied 3 months ago

Feel free to contact me on this chat feed and Thank you for using Just Answers

Customer reply replied 3 months ago

Alright I will definitely rate u

Mechanic: Field Tech, Technician replied 3 months ago

Thank you and again you can contact me on this chat feed you also can request me if you would like

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