I had an issue with the top link hitch on the back axle - which i had someone in to fix. The one with top link sensing and i think the retaining nut had come adrift. He fixed that but when he refitted the top cover he somehow lost the half moon clips holding the rising hydraulic pip in place. After some 'discussion' i haven't used him again!! As i was busy i left the tractor for a while (well a couple of years!!) I eventually had some clips made and put it all back together. Cleaned the bottom filter gauze and replaced the oil with new. The hydraulics now only work very slowly, even at full revs, and have no power to lift any implement - as the revs drop so the arms drop even with the leaver at the top. Any thoughts about where i should start to look at for problems. The 'O' ring where the rising hydraulic pip enters the top cover looks OK. Could it be the seals on the ram or the pressure relief valve stuck and if so how can i check these? Help would be appreciated as i do like the old girl - we have spent may happy hours together.
Fordson Major hydraulic problem
- Thread starter Veryoldfarmer
- Start date
Not sure - a later one - inboard brakes - two stage clutch - sensing top link - what other differences identify it? Thanks.
Have you put correct grade oil in ?, have you got trailer pipe connection if so when using auxcullar you should hear hyd pump prv blow off when moving quadrant lever up if not then pump needs checking, if you do here prv then you have problem with top cover,what parts of cover have been taken off and refitted ?. i appreciate you do not know correct names of parts but i do not know what part you refer to as pip...............
sorry - fat finger issue - 'the rising pipe' - seen here in the photo. It is held in place by 2 Colettes - these were missing so i guess the pipe just pushed down when pressure was applied and oil would escape. We thought we would find them in the bottom of the sump when we drained it - but no luck - had to get them made in the end. There is a trailer pipe - i will pull the plunger out and try that - why didn't i think of that? stupid me??? There is another adjuster knob on the top - which i would guess is speed control
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Thanks for the diagram
suffolksmallholder
Member
- Location
- Suffolk
No a Super Major by the description.
This site is a mine of information and there are articles on there specifically with regard to setting up the hydraulic system;
Mine suffered from slow hydraulics and would barely pick a hay bob up on full revs. Turned out to be the pressure release valve (on the hydraulic block under the seat). You can unscrew this and add shims which increases the pressure the valve relieves at. Very simple 10 minute job.
Mine suffered from slow hydraulics and would barely pick a hay bob up on full revs. Turned out to be the pressure release valve (on the hydraulic block under the seat). You can unscrew this and add shims which increases the pressure the valve relieves at. Very simple 10 minute job.
Thanks for that suggestion - i was my next step - i assume it is the big hex nut just behind your right leg. I was something i could get at easily without taking the top off again. being shut down i thought i would have loads of time but with the sunshine my daily list of jobs seems to get longer every day. This is a wet day job.
Went out to try it - now there seems to be an electrical fault on the starter wiring somewhere. I expect as she has been stood a while contacts or something have become oxidized or corroded - i will add it to my list of wet weather jobs. Amazing engines. she must have been stood for maybe 4 or 5 years and - before developing this fault - first spin of the engine and away she went. Thanks everyone for your thoughts.
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