Search found 18 matches

by Chris Vince
Tue Nov 07, 2017 9:14 pm
Forum: Dumpers
Topic: 1977 Thwaites Orion Hydraulics Help Please
Replies: 4
Views: 3438
Flag: Great Britain

Re: 1977 Thwaites Orion Hydraulics Help Please

Forums like this are all about helping each other keep fine old machines working, my Thwaites Orion's hydraulic oil service was far from straightforward, my experience may help someone else? I had the old style filter housing for which filter elements are now obsolete, I have tried for two months to...
by Chris Vince
Sat Sep 09, 2017 8:48 am
Forum: Dumpers
Topic: 1977 Thwaites Orion Hydraulics Help Please
Replies: 4
Views: 3438
Flag: Great Britain

Re: 1977 Thwaites Orion Hydraulics Help Please

All sorted, confirmed the details elsewhere, this may help other Orion owners?
It does have a return filter also a reusable suction filter.
The return filter is identical to a 1978 Skoda 110, £3.48 off Ebay, bargain!
It needs 32 grade hyd oil.
by Chris Vince
Sat Sep 02, 2017 9:11 am
Forum: Dumpers
Topic: 1977 Thwaites Orion Hydraulics Help Please
Replies: 4
Views: 3438
Flag: Great Britain

1977 Thwaites Orion Hydraulics Help Please

Gentlemen, I wish to service the hydraulic oil filters on my Thwaites Orion 1 ton dumper tipping mechanism, it is a 1977 model. Please can someone confirm what type of filters it will have? I am assuming it only has a suction filter in the oil tank(?) as this is all I can find, would this be a washa...
by Chris Vince
Fri Sep 01, 2017 3:48 pm
Forum: Dumpers
Topic: Thwaites Digger Dumper Filter part No
Replies: 10
Views: 6326
Flag: Great Britain

Re: Thwaites Digger Dumper Filter part No

Gentlemen, I have a similar question to the one on this thread so have placed it here rather than clutter the site up with a new thread, I hope this is OK? I wish to attend to the hydraulic oil filters on my Thwaites Orion dumper, it is a 1977 model. Please can someone confirm what type of filters i...
by Chris Vince
Tue Feb 25, 2014 7:43 pm
Forum: Member Introductions
Topic: Hello from Farnborough Hants and Dorset
Replies: 7
Views: 4920
Flag: Great Britain

Re: Hello from Farnborough Hants and Dorset

Hi, just to introduce myself. I found the Forum whilst searching for info. On a Thomas Green and sons Griffin Roller. I'a member of Llandudno Cricket Club and I volunteered to service their mowing machines, you"d think that I'd know better at my age. They have now asked me to have look at the ...
by Chris Vince
Tue Jun 18, 2013 8:18 pm
Forum: Tech Talk
Topic: Dropping Jib
Replies: 3
Views: 2814
Flag: Great Britain

Re: Dropping Jib

Sadly, I thought seals so replaced them but the problem is exactly the same.
Cylinder bore all good, I now think there must be an overload/pressure release valve that needs adjustment or replacement.
by Chris Vince
Wed May 22, 2013 8:43 am
Forum: Tech Talk
Topic: Dropping Jib
Replies: 3
Views: 2814
Flag: Great Britain

Dropping Jib

Gents, May I ask your advice please? I have a Richard Smalley 430 Gravedigger (a toy compared to what you blokes know), it is in perfect working order and has electric servo operated hydraulics. The only thing that niggles me is that given 5 minutes that jib will creep down until the bucket hits the...
by Chris Vince
Wed Feb 20, 2013 10:36 pm
Forum: Construction Equipment
Topic: Thomas Green & Sons (Atkinson) roller
Replies: 13
Views: 8224
Flag: Great Britain

Re: Thomas Green & Sons (Atkinson) roller

Hello Martyn, Forget my previous comments, I was still not happy with the starting of this engine, I have an old Thwaites dumper with a Lister PH1 that starts first time even after a 4 month layoff, I have also been watching (in envy) other Petter AB1's on UTube that also start easily. I need this e...
by Chris Vince
Fri Feb 15, 2013 8:07 pm
Forum: Construction Equipment
Topic: Thomas Green & Sons (Atkinson) roller
Replies: 13
Views: 8224
Flag: Great Britain

Re: Thomas Green & Sons (Atkinson) roller

Martyn, I have sorted it out. This Petter AB1 engine is the fixed speed version, however it is set to run pretty slow at 2,200rpm. When I was trying to start it, it was trying really hard, with a diesel knock and a little exhaust smoke, but just not getting there, once the priming effect ran out it ...
by Chris Vince
Wed Feb 13, 2013 12:37 pm
Forum: Construction Equipment
Topic: Thomas Green & Sons (Atkinson) roller
Replies: 13
Views: 8224
Flag: Great Britain

Re: Thomas Green & Sons (Atkinson) roller

They can be hard to start in cold weather,we used to put 10 W engine oil for those engines.May just need a decoke .Can you hear the injector "creak " when turning the handle ?. Martyn Thanks again Martyn, I have tried to listen for the injector creak but as yet have not heard it, the nois...

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