The IH / Case Thread

Skintagain · Feb 14, 2023

Gapples said:
Well one things for sure you cannot afford to lose much oil out of that gearbox before you'll run into major problems.
The box doesn't hold a lot of oil, maybe 25 to 30 ltrs.
So get the oil level check immediately at the level bung/filler bung behind the lhs steps.

As for the lever that engages the 4wd this has been added, originally its done via a switch.
The 4wd system uses pressure to keep it in 2wd so it's likely the 4wd pack is either not getting pressure or the pump is knackered...

Is the gearbox seperate to the back end? Is it same on a 895? I have lost hi and low checked electrics out down to solenoid all ok but no high ta.
Got problem suddenly after some heavy lifting with loader

keith armitage · Feb 14, 2023

Any other Case 580 diggers on here? This one still earns her keep, despite needing a few seals, pins and bushings.

Thomas5060 · Feb 14, 2023

Gapples said:
Well one things for sure you cannot afford to lose much oil out of that gearbox before you'll run into major problems.
The box doesn't hold a lot of oil, maybe 25 to 30 ltrs.
So get the oil level check immediately at the level bung/filler bung behind the lhs steps.

As for the lever that engages the 4wd this has been added, originally its done via a switch.
The 4wd system uses pressure to keep it in 2wd so it's likely the 4wd pack is either not getting pressure or the pump is knackered...

Is the oil seperate from the rest of the backend? I just put oil in the rear filler, didn’t realise there was different fill points

Boohoo · Feb 14, 2023

If you look through the nearside cab steps you'll see the transmission oil filler/level bung.
I took a picture of the 844...

Skintagain · Feb 14, 2023

Thomas5060 said:
Is the oil seperate from the rest of the backend? I just put oil in the rear filler, didn’t realise there was different fill points

Boohoo said:
If you look through the nearside cab steps you'll see the transmission oil filler/level bung.
I took a picture of the 844...
View attachment 1094053

Does it lose pressure for hi low if this is low?

Skintagain · Feb 14, 2023

Skintagain said:
Does it lose pressure for hi low if this is low?

What oil does this use?

Gapples · Feb 14, 2023

Thomas5060 said:
Is the oil seperate from the rest of the backend? I just put oil in the rear filler, didn’t realise there was different fill points

Oh yes, the gearbox is completely different to the hydraulic oil ( it's the hydraulic oil tank you've been filling at the back of the tractor.
If you look past the steps on the lhs you can see a tin cover plate on the gearbox side, the plate has a bulge in it, it also has a 32 mm bung. That bung is the filler/level bung for the gearbox oil, it uses hytran oil or equivalent.
Also the 2 back axles oils are separate as well, you can see the level bungs on each one of them looking from the back.
The axles hold gear oil, EP90 or similar.
Hope this helps.

Skintagain · Feb 14, 2023

Gapples said:
Oh yes, the gearbox is completely different to the hydraulic oil ( it's the hydraulic oil tank you've been filling at the back of the tractor.
If you look past the steps on the lhs you can see a tin cover plate on the gearbox side, the plate has a bulge in it, it also has a 32 mm bung. That bung is the filler/level bung for the gearbox oil, it uses hytran oil or equivalent.
Also the 2 back axles oils are separate as well, you can see the level bungs on each one of them looking from the back.
The axles hold gear oil, EP90 or similar.
Hope this helps.

Which oil does the hi low get its feed from?

Boohoo · Feb 14, 2023

@Thomas5060 if there's no sign of oil when you remove the filler bung you might be as well removing the filter and cleaning it out before filling with oil.
Again, assuming the 844 is the same...

Thomas5060 · Feb 14, 2023

Thanks @Gapples @Boohoo , will let him know, too much hassle for me

blackieman83 · Feb 14, 2023

Skintagain said:
Is the gearbox seperate to the back end? Is it same on a 895? I have lost hi and low checked electrics out down to solenoid all ok but no high ta.
Got problem suddenly after some heavy lifting with loader

895 totally different setup to 844, 856, 956 etc

Skintagain · Feb 14, 2023

blackieman83 said:
895 totally different setup to 844, 856, 956 etc

Yes I was just looking and none of it looks the same. I am going to have to take the bottom plates off I think and see if there is a gasket blown and if the solenoid is doing anything. Looks a bit involved for me but I will go steady.

Gapples · Feb 14, 2023

Skintagain said:
Which oil does the hi low get its feed from?

Different tractor as stated, IF your tractor is stuck in low check the clutch safety start switch first, this switch also puts the hi/low into low when you dip the clutch.
It's extremely common for this switch to stick in and thus leave the hi low stuck in low.

There are other causes of course if its not this.

It's extremely

Skintagain · Feb 14, 2023

Gapples said:
Different tractor as stated, IF your tractor is stuck in low check the clutch safety start switch first, this switch also puts the hi/low into low when you dip the clutch.
It's extremely common for this switch to stick in and thus leave the hi low stuck in low.

There are other causes of course if its not this.

It's extremely

I have traced the electrics down to the solenoid plug and it’s switching as it should. The clutch switch is working ok. It has defaulted to low gear suddenly after driving perfectly. I Have read the old threads which points towards low pressure somewhere or the solenoid. Is there any other silly things?

Gapples · Feb 14, 2023

Skintagain said:
I have traced the electrics down to the solenoid plug and it’s switching as it should. The clutch switch is working ok. It has defaulted to low gear suddenly after driving perfectly. I Have read the old threads which points towards low pressure somewhere or the solenoid. Is there any other silly things?

Yes solenoid can and does fail, they are pretty expensive things as well.
You should be able to hear the solenoid clicking as its switched off and on with ignition only on.
It's also common enough for the wire to break where it goes into the bottom plate where the solenoid is.
The gasket in the bottom plate can blow causing instant loss of power.
Pop a 500 psi pressure gauge in the bottom and see what's happening

Skintagain · Feb 14, 2023

Gapples said:
Yes solenoid can and does fail, they are pretty expensive things as well.
You should be able to hear the solenoid clicking as its switched off and on with ignition only on.
It's also common enough for the wire to break where it goes into the bottom plate where the solenoid is.
The gasket in the bottom plate can blow causing instant loss of power.
Pop a 500 psi pressure gauge in the bottom and see what's happening

I’ll get rigged up with a gauge and get someone in the cab to flick the switch and have a listen too. I was on my own belling the wiring out so jumped up flicked the switch etc . Thankyou

SuperTwo · Feb 14, 2023

Thomas5060 said:
Is the oil seperate from the rest of the backend? I just put oil in the rear filler, didn’t realise there was different fill points

I'd say this is the number 1 killer of these old girls, people don't realize the gearbox is separate and they end up running low on oil.

devonbeef · Feb 15, 2023

Do the 4240 s have separate gearbox lubrication too? or does it come from backend oil?

Gapples · Feb 15, 2023

devonbeef said:
Do the 4240 s have separate gearbox lubrication too? or does it come from backend oil?

All the same oil, hydraulic and transmission.

devonbeef · Feb 15, 2023

Gapples said:
All the same oil, hydraulic and transmission.
[/QUOT
thank you,panic over

The IH / Case Thread

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