NH 617 disk mower oil

ptfarmer · Aug 4, 2016

Does anyone know what kind, and how much oil is required for the gearbox on a New Holland 617 disk mower.

ptfarmer · Aug 4, 2016

And where, or how do you check the oil level in the gear box?

keh · Aug 4, 2016

I've never used a 617 so take this with a grain of salt. Disc mowers I am familiar with use 80-90 weight gear oil. As for checking oil, usually you can just look
in the filler hole and if the oil runs out, it is full. The manufacturers say gear boxes, and cutterbars, last longer if oil is a little low rather than too high,
so I think they design the gearbox housing filler hole to prevent overfilling. I would get a manual from NH.

KEH

Fred Werring · Aug 4, 2016

Gearbox with the belt pulley (top box)...with the mower flat, there's a square headed pipe plug on the top, that's the fill
plug, and one on the side towards the pto shaft, that's the level plug. Put oil in the fill hole until it comes out the level
hole.

The lower unit under the gearbox...on the front side of the box is a plug with a breather in it, that's the fill plug.It can
be hard to find the first time, lot of chaff gets caught there. Down low on the side towards the middle, pretty much straight
down from the square head plug for the gearbox...it would be pointed down if the cutter were raised vertical...is an allen
head pipe plug, that's the level plug when the bar is flat, and the drain plug when vertical. clean out that allen head real
good and make sure your wrench is all the way in, where those things are located they get packed full of dirt, easy to round
it out.

all levels are checked with the bar flat.

And every cutter module has its own threaded dipstick as well.

If you can't find the plugs post back, I'll try to get some pics (I've got a 616, it's the 7'10" version of your mower)

Fred

NH 617 disk mower oil

ptfarmer

Well-known Member

ptfarmer

Well-known Member

keh

Well-known Member

Fred Werring

Well-known Member

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