EFA Posted February 8, 2010 Share Posted February 8, 2010 My engine hoist is buggered. Seasls are OK, seemingly a problem with one of the safety valves. Clarke can't help, its a 1995 model they no longer have a manual for. Link to comment Share on other sites More sharing options...
jj48 Posted February 8, 2010 Share Posted February 8, 2010 Hi Arnie- i have an engine hoist if you wish to borrow it . It's at my garage in Uckfield. Richard Sussex Swede R400 Link to comment Share on other sites More sharing options...
EFA Posted February 8, 2010 Author Share Posted February 8, 2010 Hi Richard, Thanks for your offer, but this will be a long term thing, as there are no mounts for said engine on the chassis. The engine is being lowered to work out their positions then get my chassis man in. I'm just confused as hell why it will not work. I think its a bleeding problem, but its proving a complete basket case to resolve. Link to comment Share on other sites More sharing options...
Paul Gibb Posted February 8, 2010 Share Posted February 8, 2010 My engine goes back in early next week & you are welcome to have my hoist as soon as it is free. L7 FUN Link to comment Share on other sites More sharing options...
Stuart Miller 7 Posted February 8, 2010 Share Posted February 8, 2010 Arnie I use speedy lifting, formely Lifting Gear Hire for all my hydraulics service and repair work. www.speedyhire.com and type in your postcode for your local branch. Seal kits generally £50ish and control valves £20 and upwards. Labour normally £40/hour. If your hoist is Machine Mart you may find it cheaper to buy new? Worth the call anyway and they'll probably have a look and tell you what's wrong FOC. Good luck Link to comment Share on other sites More sharing options...
Paul Deslandes Posted February 8, 2010 Share Posted February 8, 2010 Arnie, I had a similar problem with my Clarke 1 tonne crane a few weeks ago. It was useless under load and I couldn't bleed the bloody thing so in the end took the ram off and emptied it out (rubber bung about half way up), dismantled and cleaned the valve assembly at the bottom, refilled with new fluid (Halfords) and after about four or five unloaded ups and downs it fully recovered. The gauze filter and the balls in the valve had some crap which may have been the problem. Also, the fluid was very mucky with grey metal particles in it which may not have helped. If you do take it to bits make careful note of how it comes apart as there is a right and wrong way up for the valve unit to go in. Also watch out for springs and bits that go boing! If you don't have the instructions (assuming its a Clarke) you can download from their website or I can forward them to you. It took me about half an hour to fix, plus a trip to Halfords for the fluid. Paul oops, just re-read the last bit of your post. I'd try to take it apart anyway, can't be that different to the current ones can it? Edited by - Paul Deslandes on 8 Feb 2010 23:36:07 Link to comment Share on other sites More sharing options...
John Howe Posted February 9, 2010 Share Posted February 9, 2010 Arnie, Their is a company near Three Bridges that play with hydraulics... have look in yellow page - I'm afraid I don't know their name. If you get stuck, give me a shout and I'll try to find out their name from the chap who does my tractors. JH Deliveries by Saffron, the yellow 230bhp Sausage delivery machine Link to comment Share on other sites More sharing options...
EFA Posted February 9, 2010 Author Share Posted February 9, 2010 Thanks Chaps! Paul, your comment "Also watch out for springs and bits that go boing! " has made me realise there appears to be a spring missing in the valve. Link to comment Share on other sites More sharing options...
Paul Deslandes Posted February 9, 2010 Share Posted February 9, 2010 Actually Arnie, I don't think it does have any springs in it. There is a gauze filter and a steel cylinder with a ball valve at each end as I recall. I think these work by pressure and/or gravity, but it does have a 'right way up'. If you've got as far as taking it to bits and cleaning it, I'd try refilling it with fresh fluid and trying to bleed it out again. Mine did take a few unloaded ups and downs to bleed out, as I said, but it fully recovered. The exploded diagram in the manual isn't very helpful but no springs are listed in the ram assembly. Base CFC301 Ball CFC302 Seal CFC303 Release Valve CFC304 Cylinder CFC305 Washer CFC306 Check Valve Kit CFC307 Seal CFC308 Washer CFC309 Pump Cylinder CFC310 O-Ring CFC311 Cup Seal CFC312 Back-up Ring CFC313 Pump Plunger CFC314 Handle Sleeve Assy CFC315 Link CFC316 Rivet CFC317 Pin CFC318 Clip CFC319 Screw CFC320 Packing CFC321 Reservoir CFC322 Ram CFC323 Retainer CFC325 O-Ring CFC326 Cup Seal CFC329 Cup Washer CFC331 Circlip CFC332 Top Nut CFC333 O-Ring CFC334 Filler Plug CFC335 Handle CFC336 Grip CFC337 I wish we could post pictures on this website! Paul Link to comment Share on other sites More sharing options...
EFA Posted February 9, 2010 Author Share Posted February 9, 2010 Paul, Take a look at this 70 Sphere 3/8" R2073 Part 70 sits under the M12 bolt 144. There is a gap of about 15mm which would suit a spring. I have found a spring, but have no idea of the rating. I think the ball at 12 possibly is gravity or pressure fed. Whichever Clarke themselves do not have a drawing for the exact ram I have, and none of the spares above in the UK - quoting 12 weeks to deliver. Does anyone have a 3/8" and 1/4" ball bearing spare? I'll pack out the safety valve (only there to prevent overloading) which will at least let me figure how to get it going.">here Link to comment Share on other sites More sharing options...
ChrisHawkins Posted February 9, 2010 Share Posted February 9, 2010 You could try pumping the handle with the hoist lowered and the release valve released, this works on bleeding hydraulic pallet trucks that have been on there side in the back of a lorry Chris K93 AMJ Link to comment Share on other sites More sharing options...
EFA Posted February 9, 2010 Author Share Posted February 9, 2010 Sorry Chris, I should add that I, Angus, Geoff Dixon and the Culmernator all tried bleeding it to the point that we got several eyefuls of fluid. Its ball bearings and a spring or bust! Edited by - EFA on 9 Feb 2010 22:45:57 Link to comment Share on other sites More sharing options...
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