Hydraulic Power Cart

[cessnadriver]

FYI. REF: Steve G. commit about the home made mule, I used his a few times to do the gear swings. The only problem, which I'd like to know about the other members mule, is at the high pressure at the end of the gear cycle the electric motor would bog down and trip the circuit breaker. Steve uses, I think, half horse. Did the other member use a bigger electric motor??
BILLS

[SteveG]

I used a 2HP, 120V motor. It's more than sufficient to operate the gear thru its cycle but has trouble building sufficient pressure to return the gear handle to the neutral position. I suppose a 5HP, 240V motor such as might be found on an air compressor would be a better choice. More grunt, less current draw but significantly higher cost. Or design a geared drive rather than direct drive, but again at higher cost and complexity. I can't help with the weak 15amp circuit breaker.

[JAG]

For those that requested, I will put together a readable drawing with parts list soon.
Jeff

[MelsML55]

UM......yeah.......I'll take that list please.
Keith 817-991-4318

[n86121]

Some years back
an A&P removed hydraulic pump from the engine, leaving hoses connected.

Then used hand held battery drill to spin it.
Worked like a charm

[hharney]

Originally Posted by n86121

Some years back
an A&P removed hydraulic pump from the engine, leaving hoses connected.

Then used hand held battery drill to spin it.
Worked like a charm

It's a good system, still being used today by a few of us out there. No risk of contamination or air in the system when using a mule. Here's a quick video of the operation, most you have probably seen it but it's worth posting again.


https://youtu.be/w67UYBa48Lg

[JAG]

All who asked, here is a schematic and parts list for the hydraulic unit/cart I built for my C337A. You can PM me if you have any questions.
Jeff