pbg somerset
Member
Can anyone suggest why when fitting or removing hydraulic hose quick couplers on grab I can't release any residual pressure in the system so end up slackening off pipe unions to let pressure go in order to fit or dissconnect ?
JCB 310S
- Thread starter pbg somerset
- Start date
farmerbill
Member
Are you dumping the pressure by pressing the switch then rocking the auxiliary roller on the joystick?
Stoxs
Member
- Location
- Andover , Hampshire
you need a new accuimilator, located under rear of boom.
Can only be checked with specialist equipment. Not sure on cost of new one but not mega bucks. easy to fit . I think i would just get one and try it.
pbg somerset
Member
With engine off , but switch on , operating auxiliary roller has no affect
pbg somerset
Member
Sounds like that accumulator then , can they be repaired ?
Stoxs
Member
- Location
- Andover , Hampshire
nope, new unit.
sealed sphere with a diaphragm inside, oil one side air the other, diaphragm splits stops working.
certain they are not expensive. I would guess under£100.
- Location
- East Sussex
Odd, I would have thought if you dumped the pressure that was it?
I partly unlock/ lock the pins and then the couplers will, 9 times out of ten, come off/on without switching the machine off. Flat face ones.
I partly unlock/ lock the pins and then the couplers will, 9 times out of ten, come off/on without switching the machine off. Flat face ones.
Last edited:
davidroberts30
Member
- Location
- pembrokeshire
Engine off,ignition on the dump the pressure
Mine needs about 4 or 5 seconds after turning the key back on before it dumps
Try your on the boom rocker,that will dump pressure as well
Mine needs about 4 or 5 seconds after turning the key back on before it dumps
Try your on the boom rocker,that will dump pressure as well
davidroberts30
Member
- Location
- pembrokeshire
Only accumulator I got near the boom are the 2 long 1s on the main lift ram
Stoxs
Member
- Location
- Andover , Hampshire
there is one for the release of pressure in the system, if i recall correctly it is under boom at the rear.
on a 536/60 its on the back corner of the cab under boom.
davidroberts30
Member
- Location
- pembrokeshire
Not on my 08 310s
- Location
- East Sussex
Nor mine. Maybe he’s got the pressure release button jobby?
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Stoxs
Member
- Location
- Andover , Hampshire
long time since i dicked around with a 310, looking at picture its under rear right.
check with local dealer before buying. Got a feeling they need to be set up so it may need fitting by dealer as well.
- Location
- East Sussex
Theres a few sphere shaped ones under the cab but not under the boom I don’t think. That diagram looks to be under cab and there’s two I can see.
- Location
- Down
Surely the accumulater is only to do with the soft ride facility for travelling on road ,pressure needs to be released in the system when changing oil fittings as described above by switching engine off and rolling appropriate switch to release pressure on fittings.
davidroberts30
Member
- Location
- pembrokeshire
The sphere in the middle of the pic is the brake accumulator
Thick Farmer
Member
- Location
- West Wales
I hit the ends of the fittings with a hammer and that usually does he trick!
davidroberts30
Member
- Location
- pembrokeshire
Hammers and matches
We have had this problem with a new Kramer, you can rock the third service switch to release the pressure but by the time you got out to the grab it’s built up pressure again. Sorted this week after some moaning to Kramer by fitting a pressure dump switch on the boom, the difference it has made has been dramatic. What was a bitch of a job is now easy, it was so bad we did think we were going to reject the Kramer over this issue. However they have told us we have to pay for this button which in my opinion should have been standard and it’s not cheap.
