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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Re: Drott Skidloader

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Dennis K (WA)

12-03-2012 13:39:32

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I just thought of another possibility for the spring etc on the back end of the spool. Could be the detent assembly which is there so the handle will lock into the raised position until it reaches a predetermined height at which time it will kickout by itself. If that is what it is it would not have an effect on your lift unless assembled wrong and not allowing the spool to shift totally.

Maybe some pictures of what you have would help identify the valve.

Do you have any manuals for the unit? Parts or service.


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12-03-2012 15:40:26

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 Re: Drott Skidloader in reply to Dennis K (WA), 12-03-2012 13:39:32  
I have manuals for the machine but not my hydraulic system.

I ran the machine tonight some more and I do have go pressure/force with down and curl both ways on the bucket,

I took the handle off the spool and operated the spool through the full stroke and its no different,appears the handle is allowing full travel

I broke a fitting loose on the valve going to the loader lift cylinder and have fluid oming out when the valve is in the lift position.

Without a gauge its useless because I have no idea of how much volume or pressure is coming thru.

Still suprises me the loader will not even try to lift at all,no movement in the cylinders what so ever.

I do hear oil traveling somewhere within the valve when in the up position.

Though maybe it was going back to the tank but thats not the case.

Sounds like its just circulating thru the valve.

I do notice the hydraulic oil looks to be full of air just not a solid color like oil would be.

The valve is a


I will get a picture of it tomorrow while its light out still

Thats again for taking the time to help with your responses

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Stick welding

12-03-2012 21:20:39

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 Re: Drott Skidloader in reply to tpmx, 12-03-2012 15:40:26  
There might be float position on the boom valve. If it's going into float position would cause it not to lift.

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12-03-2012 21:38:56

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 Re: Drott Skidloader in reply to Stick welding, 12-03-2012 21:20:39  
It does have a float position on the lift spool.

All the way forward is float,back slightly is down,back more is neutral all the way back is lift

This is interesting but how would it be going into float with the spool in the lift position.

I am asking this because I am not sure how the float actually works

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Stick welding

12-03-2012 22:14:39

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 Re: Drott Skidloader in reply to tpmx, 12-03-2012 21:38:56  
Internal leak in the valve? I'm not sure but it would account for it not lifting. Float opens up the ports in the valve so the weight of the boom and bucket follows the contour of the ground when back blading.

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12-04-2012 03:17:22

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 Re: Drott Skidloader in reply to Stick welding, 12-03-2012 22:14:39  
An internal leak in the valve is what I am leaning towards

I am going to ser if i can switch the lines over to the extra spool

And see what happens

Should tell the story

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