Frozen Hydraulics on 186d

Post your questions or problems you are haviing with your Yanmar tractor here.

Moderator: Aaron

jorgeofborg
Volunteer Poster
Posts: 3
Joined: Mon Apr 11, 2016 10:01 am

Frozen Hydraulics on 186d

Postby jorgeofborg » Fri Jan 12, 2018 11:28 am

Hi, I am having trouble with my hydraulics freezing. I have cold weather here, and the last time I started up my tractor none of my hydraulics were working - powershift tranny, 3-point, or bucket. I let it warm up for 3 hours and still nothing. Last time it did this, they started to work after 1 hour of warming up. Any suggestions on helping the hydraulics warm up in the cold weather? Should I take a torch to try to warm something up? The oil was changed a couple years ago. Maybe the oil is too thick or has water in it? What is the oil weight I should use in the cold temps? I know I have to use tranny hydraulic fluid. Thanks.
-Ben

alan
Volunteer Poster
Posts: 2763
Joined: Sat Oct 06, 2007 6:25 am
Location: West of Toronto

Re: Frozen Hydraulics on 186d

Postby alan » Fri Jan 12, 2018 12:00 pm

When you look down the fill hole, is the fluid level within a couple inches from the top? If you draw a sample, does it look milky?

winston
Volunteer Poster
Posts: 4504
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: Frozen Hydraulics on 186d

Postby winston » Fri Jan 12, 2018 2:33 pm

No doubt water in fluid would cause your problem. Many have had good success with automatic transmission fluid in cold climates. Of course water in it would do the same freezing.

jorgeofborg
Volunteer Poster
Posts: 3
Joined: Mon Apr 11, 2016 10:01 am

Re: Frozen Hydraulics on 186d

Postby jorgeofborg » Tue Jan 16, 2018 8:21 am

alan wrote:When you look down the fill hole, is the fluid level within a couple inches from the top? If you draw a sample, does it look milky?


The fluid level is a couple inches from the top (maybe a little less). The fluid does not look white milky if that is what you mean. What would milky mean for the fluid? Thanks

winston
Volunteer Poster
Posts: 4504
Joined: Mon Feb 01, 2010 7:29 am
Location: North East Texas

Re: Frozen Hydraulics on 186d

Postby winston » Tue Jan 16, 2018 8:40 am

Water in it causes a milky look.

alan
Volunteer Poster
Posts: 2763
Joined: Sat Oct 06, 2007 6:25 am
Location: West of Toronto

Re: Frozen Hydraulics on 186d

Postby alan » Wed Jan 17, 2018 1:24 pm

Since the fluid is the right kind, right amount, and free of water, I'm puzzled because a system blockage or pump failure is rare, especially if intermittent. And it's complex, equipment-needing, and potentially dangerous to try to diagnose a hydraulic fault. But you could sniff the fluid for a burned smell, and drain some out the bottom to inspect for metal bits.

You asked how to heat it.

Move hitch lever to lower the arms all the way. Close stop valve (full clockwise). Run at 1500 RPM. Move lever to full up. Have a coffee. When the in-pipe to the pump feels hot to the hand, the fluid's as warm as it will get.


Return to “Tech Support”

Who is online

Users browsing this forum: Google [Bot] and 9 guests