Oliver 1550 with 770 engine PTO speed dilemma

OC4-3D · Jan 1, 2015

I've got a 1550 that I am restoring; it has a 770 diesel engine in it. With the 770 engine rated @ 1750 RPM I think I'll be about 100 RPM shy of the necessary 540 RPM at the PTO. Question is, should I just turn the engine speed up on the injector pump, or re-gear it with 1000 RPM parts and run the engine at 1190 RPM? I don't plan on any full horsepower PTO work.

J. Schwiebert · Jan 1, 2015

First of all, does your 1550 have a single speed PTO or is it a dual speed unit? If it is a single speed unit with a dry clutch I would get two gears from a 770 and you will be good to go. Gears from an 1600 or 880 will do the same thing.

OC4-3D · Jan 3, 2015

Thanks for the reply John. I've been through the parts books and I have my 'shopping list'. I can't tell you how much I appreciate your help.

Oliver 1550 with 770 engine PTO speed dilemma

OC4-3D

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J. Schwiebert

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OC4-3D

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