Champion 730A VHP Series V literature

[cric8192]

Does anyone know where I can get a parts or service book for this unit? I found some old series 3 books but believe there are some significant differences.

Thanks

 

[Welder Dave]

Try Jade Equipment. They are in Edmonton and also have a location in Ontario. There is basic literature on the internet.

 

[cric8192]

Thanks I reached out to them. I can’t find anything other than a sales brochure for this specific unit online. I’m willing to pay but can’t swing a 500$+ hard copy off eBay.

 

[Welder Dave]

Is there something specific you need to repair?

 

[cric8192]

All hydraulics suddenly got really weak is the pressing issue. Was hoping for some pressure specs and to read up on the hydraulic system.

 

[Welder Dave]

Stuck relief valve maybe? Jade should be able to give you some guidance.

 

[cric8192]

I’ve got 250psi on the working line going to valve bank when a function is activated.

0psi on the load sense line

 

[Welder Dave]

I think those machines are closed center and have low pilot pressure when nothing is activated. Something is causing yours to not to go higher than standby pilot pressure. I don't know if it's electrical or hyd. that activates the load sense line. I'm sure Jade would have some ideas to troubleshoot your problem.

 

[cric8192]

Load sense line is hydraulic controlled I removed the load sense valve block- all the shuttle valves and seats are OK I blew air through the feedback line to the pump didn’t seem to be any issues with the load sense.

I wonder if the pump has failed, the shaft seal looks to have recently blown out maybe due to increased case pressure?

Will definitely give Jade company a call this week. I did message them about manuals

 

[Welder Dave]

If the pump blew a seal could be the problem. Could the pump have somehow deadheaded?

 

[jurick40]

Does anyone knows to troubleshoot MG230

 

[James Sorochan]

Cric8192. There is a guy selling some service manuals on Kajiji.

His name is Greg Kostiniuk ( Phone 780-826-1485 )

The add title is Champion Grader Snow Wing

 

[cric8192]

Cric8192. There is a guy selling some service manuals on Kajiji.

His name is Greg Kostiniuk ( Phone 780-826-1485 )

The add title is Champion Grader Snow Wing

Thanks it’s for a series 3 though different hydraulic setup.

I put a pump on it hydraulics are now strong pressures within spec.

Brake failure light is on and brakes are spongey. Jade doesn’t have books to give/sell you but are very helpful with bits of info.

Might have to buy a book off eBay $$$

 

[Welder Dave]

For series 3 graders there are manuals on the Sierra Park 730A website. Owners, parts and service. I've got lots of info from there.

 

[Fatgraderman]

Series 3 used open center hydraulics. They went to load sensing with series 4. Not a ton of change between series 3 & 4. I wonder if putting a bit of oil pressure on the load sensing line would troubleshoot if it’s the pump?