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I have a komatsu excavator pc30-7 serial number 23206 on…

Customer Question
I have a komatsu...

I have a komatsu excavator pc30-7 serial number 23206 on mystarboard side or right side the track stop rolling

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

Komatsu pc30-7 serial number 23206

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

Yes fixing myself

Submitted: 3 years ago.Category: Construction and Road Equipment
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Answered in 1 hour by:
4/19/2019
Mechanic: Dan, Technician replied 3 years ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,862
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
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Hi, My name is***** will be glad to help. We can follow up as needed on here, Give me some time to review your information and follow up with my responses. Professionals are not employees of the site but users of the site and help on here as time allows in between jobs, family, etc. Response time can vary depending on my work load each day but I will always respond back on my next available login. Feel free to respond back at anytime if for any reason we seem to get separated, for status, etc.

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Mechanic: Dan, Technician replied 3 years ago

If your track is not moving on the right side but all other excavator functions are working normally, either you have a faulty drive motor or gearbox, or a problem with your Rotary manifold, or finally, a faulty relief valve for that travel circuit not allowing pressure to build in the circuit. These are the things you want to check for. You can look inside the hydraulic filter for signs of fine metal or debris that would confirm a pump or component failure occurring. It would unlikely be a pump if all other functions are working normally. Your drive motor however could be experiencing a failure and any metal produced from that failure will usually get caught in the return hydraulic filter. It's a pleasure to help anyway I can.

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Dan
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,862
14,862 Satisfied Customers
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.

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