7245 Hydraulic problems

[roffensian]

Hi guys - great site and I'm happy to find it.

I have a problem with my 7245 that I am hoping you can help me with. This winter the hydraulics have stopped working on my 7245 - bucket and 3ph won't lift at all under any conditions.

At first I thought it was just the thermal cutout feature that prevents the hydraulic pump from working when too cold, but I have run the tractor for an hour or more, and tried during a mild day (+8 celsius) and still nothing.

I am now thinking that maybe there is some air in the system (maybe because the oil was too viscous), but I can't see anywhere to bleed the system, so my questions are:

1) How can I bleed the hydraulics
2) Is there anything else that might have caused this that I can check before assuming that the pump is dead

I've checked the oil level, and this was a problem that occurred all of a sudden when the weather turned cold rather than coming on gradually.

Thanks in anticipation of your assistance!

 

[robert_young]

Hi,

Just a thought,but perhaps there was some water in the hydraulic resevoir and it froze ,thus blocking the inlet for the pump.Saw this happen on a Fiat.Good Luck!

Take care,
Rob Young

 

[ixer0]

Hi and welcome to the forum.

First of all, do you have the external pump driven off the front pulley or the standard internal type ?
If it's the external type, the drive couplings wear out.
If internal, it is driven off the same drive train as the PTO so make sure you have the PTO selector lever in the correct place. This is the L/H of the 2 levers between your feet. It has 4 positions. The front is Hyds only, the 2nd is Hyds and PTO, the next position is neutral and the rearmost is PTO only. also the 540/100 lever must be engaged.
If you're sure it is driving okay and the PTO clutch isn't pulled up (no light showing on the dash) the next thing to try is the suction filter which is on the aluminium housing screwed into the hydraulic pump plate in the bottom of the rear axle. You don't need to drain the oil to clean it.
Try that lot and let us know how you get on.

Good luck

Mike

 

[roffensian]

Hi and welcome to the forum.

First of all, do you have the external pump driven off the front pulley or the standard internal type ?
If it's the external type, the drive couplings wear out.
If internal, it is driven off the same drive train as the PTO so make sure you have the PTO selector lever in the correct place. This is the L/H of the 2 levers between your feet. It has 4 positions. The front is Hyds only, the 2nd is Hyds and PTO, the next position is neutral and the rearmost is PTO only. also the 540/100 lever must be engaged.
If you're sure it is driving okay and the PTO clutch isn't pulled up (no light showing on the dash) the next thing to try is the suction filter which is on the aluminium housing screwed into the hydraulic pump plate in the bottom of the rear axle. You don't need to drain the oil to clean it.
Try that lot and let us know how you get on.

Good luck

Mike

To be honest, I didn't realise that there were two configurations, but it must be off of the front pulley, because I have always used the 'neutral' setting of the PTO select lever as the 'off' position when not using the PTO and have always had hydraulic power in that setting.

I know where you mean for the filter, so I'll check that - where will I find the couplings for a set up from the front pulley?

Thanks for the help guys!

 

[ixer0]

Hi

The shaft joins between the pulley and the pump. It is difficult to see but you should be able to look under the radiator and may hear it rattling if it's gone. To get access to it I usually take the bonnet off complete as it has a plastic cover over the pump. If you have to order parts for it be aware that there are 2 different types of coupling/pump and shaft.

Mike

 

[roffensian]

Hi

The shaft joins between the pulley and the pump. It is difficult to see but you should be able to look under the radiator and may hear it rattling if it's gone. To get access to it I usually take the bonnet off complete as it has a plastic cover over the pump. If you have to order parts for it be aware that there are 2 different types of coupling/pump and shaft.

Mike

Thanks Mike, I'll take a look - probably have to wait until the weekend now as we are headed for a few days of below -20 celsius. I appreciate the help .