Sunday 26 November 2017

Cubster hydro box oil level

The gearbox has always been a bit talkative, grumbling to itself when cold, irrespective of ambient. Last time it went out to collect leaves it was positively reluctant.
The K46 box fitted is sealed for life. However, under 'heavy' use, its oil should be checked and changed. I'd say this ride-on has had an easy life, however, it was worth a quick check of the oil level.
In order to make life easy for the customer, there is no dip tube, or emptying point. By removing the collection tube, and the breather you can almost get to the recommended filling/inspection point, conveniently located under the pulley and fan.
Some variants have an oil expansion vessel, but I've got a breather in that spot. I had to remove that to get to the cap. Again, to help the customer, they fit one-use jubilee clips which are easy to fit in production, but risk injecting yourself with a screwdriver when trying to remove them, assuming you don't stuff the screwdriver straight through the pipe. Once removed, I couldn't get the cap off, so managed to measure through the dip tube and refer it to the cap. 35mm was what it appeared to be. The recommended range is 17-22mm. I added some 5-30 fully synthetic. The forums suggest 10-30, 15-50 or 5-50 synthetic. It's now about 25mm and a lot quieter.
The oil is oily colour, not grey or black.

http://www.tufftorq.com/tuff-torq-k46-oil-maintenance/

A pdf here 
https://www.tufftorqservices.com/instance1EnvEEdefault/FlatHTML/TechInfo/ttcoil/pdfs/cc%20Changing%20&%20Checking%20Oil%20in%20the%20K46AM%20Transmission.pdf

this is a nice post
http://forums2.gardenweb.com/discussions/3541703/k46-oil-change-with-pictures

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