M-H 555 rpm?

Mopower · Feb 12, 2013

The old 55 tractors ran 1350 loaded rpm in the Nebraska tests. What was the 555 rated (load)? I don't believe it was tested and nobody around here has an owners manual. Thanks!

massey 333 · Feb 12, 2013

Same basic tractors with some mech.updates

Bruce Colbourne · Feb 12, 2013

The engine is set to the same specs as the 55.Full throttle no load is 1510 to 1520 rpm.Full throttle full load is 1350 rpm.The 555 is the same as the 55 except for the paint scheme.The paint colors and chrome was updated to match the 333 and 444.For any mechanical spec's you need just refer to a 55 manual.

fdt860 · Feb 12, 2013

I noticed it latelly, but also the hood is not the same.
The cut on the side panel is higher on the 44 and 55.

The 3 letters series get higher side panels, like the 44-6 and the 30 did.

The 555 has also a bearing ball with a cast bracket to hold the rear of the front axle. What the 55 got is not serious. Another major seeable difference is the hydraulic system commands, and different hydraulic pump and reservoir. The 555 Diesel get also a more modern manifold heater, but they remove the Diesel primer. I don't think it is possible to find parts for the coil heater of the 55.

M-H 555 rpm?

Mopower

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massey 333

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Bruce Colbourne

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fdt860

Well-known Member

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