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galecommon
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Post subject: Flow and return pipes on 990 selectamatic
Posted: 11.03.2012, 21:49
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Joined: 17.10.2011
Wakefield,West Yorkshire.UK
Posts: 15
Location: Wakefield,West Yorkshire.UK
Status: Offline
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| Hi guys ,I am hoping run run a water bowser with my 990 it has a two pipe ram fitted on the sluce door,where would i atatch these pipes on the tractor,would it be to the valve on the left hand side of the seat that has four positions?Cheers. |
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cambs1594
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Post subject: RE: Flow and return pipes on 990 selectamatic
Posted: 11.03.2012, 21:54
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Joined: 01.06.2011
cambridgeshire
Posts: 1840
Location: cambridgeshire
Status: Offline
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| unless you tractor has the double acting spool fitted (this fits in place of the camels hump to the right of the seat, near main lift lever) you will need to rig up an auxillary control valve, fed off of your tipper pipe, and returned to the port on the rear axle behind the 3 way valve. The three way valve is only a diverter valve for the main system, it has not got double acting capability. Single slice spool is easy enough to rig up. then you just leave the tractors hydraulics in constant pumping to operate it |
_________________ 990 selectamatic
1390/gd90 loader
1494
1594 comm edition
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galecommon
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Post subject:
Posted: 14.03.2012, 19:08
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Joined: 17.10.2011
Wakefield,West Yorkshire.UK
Posts: 15
Location: Wakefield,West Yorkshire.UK
Status: Offline
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| Thanks for that cambs 1594 ,but I fear I have bigger problems ,I lowered the lift arms and they would not lift back up ,everything in the right position but nothing ,when I removed the cover on the R,H Ramshaft bracket with the engine running there was no continuous flow of oil as described in the fault finding notes,also should the oil be a milky colour....any Ideas or is it terminal? |
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cambs1594
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Post subject:
Posted: 14.03.2012, 19:16
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Joined: 01.06.2011
cambridgeshire
Posts: 1840
Location: cambridgeshire
Status: Offline
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| drop the oil and change/clean the filter between the drawbar arms under the back end, were the lift arms working before, could be blocked bypass valve, unscrew the dump valve, remove oval plate and you see top of the valve chest, undo the slotted plug and remove bypass valve, unscrew the brass plug inside the pluger and clean the filer/restrictor washer and re-assemble, dont forget the sealing washers |
_________________ 990 selectamatic
1390/gd90 loader
1494
1594 comm edition
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galecommon
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Post subject:
Posted: 14.03.2012, 20:05
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Joined: 17.10.2011
Wakefield,West Yorkshire.UK
Posts: 15
Location: Wakefield,West Yorkshire.UK
Status: Offline
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| Right will do that and report back .Thanks for that oh and yes the arms worked before.cheers |
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galecommon
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Post subject:
Posted: 22.03.2012, 21:32
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Joined: 17.10.2011
Wakefield,West Yorkshire.UK
Posts: 15
Location: Wakefield,West Yorkshire.UK
Status: Offline
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cambs1594 wrote: drop the oil and change/clean the filter between the drawbar arms under the back end, were the lift arms working before, could be blocked bypass valve, unscrew the dump valve, remove oval plate and you see top of the valve chest, undo the slotted plug and remove bypass valve, unscrew the brass plug inside the pluger and clean the filer/restrictor washer and re-assemble, dont forget the sealing washers
Hi cambs 1594 have done all the above and have got the arms working ,problem I have now is in Hieght or depth the arms when lowered want to lift back up again,also nothing happens when dial is in TCU do I have to move the lever on the left side of the seat to another position for the arms to work in TCU |
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cambs1594
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Post subject:
Posted: 22.03.2012, 21:41
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Joined: 01.06.2011
cambridgeshire
Posts: 1840
Location: cambridgeshire
Status: Offline
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| in tcu the arms should lift then he lever is fully front, ie in lower if you was in height or depth, pull lever fully back against spring and they shoul also lift, release lever and it should hold. The lever on left of seat (three way valve) should be in L or L1 for the arms to work correctly |
_________________ 990 selectamatic
1390/gd90 loader
1494
1594 comm edition
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