L4610 Leak at hyd. "level window"

[mopar2ya]

i seem to have a leak at the sight glass for the hyd. level on the rear of tractor near pto shaft. Can these be easily changed?? thanks Mopar2ya

 

[North Idaho Wolfman]

Yep easy, drain fluid down below window, pop the old window and gasket (grommet) out and replace with new one.

 

[mopar2ya]

Thanks Wolfman that is what I was hoping, I thought the leak was from the "o" ring behind the rear pto shaft so I replaced the bearing , nut, and both seals.... and still leaked. So I am pretty sure it must be coming from the site glass......Mopar2ya......

 

[Daren Todd]

Yep easy, drain fluid down below window, pop the old window and gasket (grommet) out and replace with new one.

Here's a trick you can use. Drop the nozzle from a shop vac into the fill hole for the tranny oil and turn it on Doesn't need to contact the oil. Just put the system under a vacuum. No need to drain the oil.

I use that trick on engines if I have to replace a crush washer on a leaky drain plug or convert to a quick connect drain setup. Just drop the vac line in the engine oil fill, or slide it over the hose for the crank case vent.

I about fell over when I had an old timer show me that trick

 

[North Idaho Wolfman]

Here's a trick you can use. Drop the nozzle from a shop vac into the fill hole for the tranny oil and turn it on Doesn't need to contact the oil. Just put the system under a vacuum. No need to drain the oil.

I use that trick on engines if I have to replace a crush washer on a leaky drain plug or convert to a quick connect drain setup. Just drop the vac line in the engine oil fill, or slide it over the hose for the crank case vent.

I about fell over when I had an old timer show me that trick

It won't work in this scenario because the fluid level is only normally 1/2 way up the window, so air would just rush in as fluid is pouring out.

 

[Daren Todd]

It won't work in this scenario because the fluid level is only normally 1/2 way up the window, so air would just rush in as fluid is pouring out.

True. I hadn't tried that trick on one of those plugs. I usually just Jack up the side the site glass is on to swap the plug then test the trailer brakes on that side while it's in the air. Or if im doing a quick check with it in the wash bay, ill just reposition the unit on the slanted floor so the site glass is on the up hill side.

 

[North Idaho Wolfman]

True. I hadn't tried that trick on one of those plugs. I usually just Jack up the side the site glass is on to swap the plug then test the trailer brakes on that side while it's in the air. Or if im doing a quick check with it in the wash bay, ill just reposition the unit on the slanted floor so the site glass is on the up hill side.

Yea I would have told him that option, but it's on the rear on that model, really hard to jack up the whole rear end, but I guess if he's got a steep hill available that would work.

 

[rjcorazza]

I replaced the sight glass on my previous L3410 and don’t recall fluid pouring out. Just pop out, pop in.


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[mopar2ya]

I just picked up new sight glass, should I use a sealant of some kind?

 

[D2Cat]

When I asked service tech, he said it wasn't necessary to use an adhesive/sealer. BUT I wiped the hole with brake cleaner and used a slight smear of silicone. I thought it might make it slide in easier and maybe help seal. I think all that was just to make me feel better. He was correct it's really not needed.