Search found 2182 matches

by FOWLER MAN
Sat Jan 26, 2019 12:05 pm
Forum: Excavators
Topic: Hymac 580 C Cross-Line Relief Valve Adjustment
Replies: 14
Views: 3048
Flag: Wales

Re: Hymac 580 C Cross-Line Relief Valve Adjustment

Hi, That's fine, good to have been of help :thumbup: . I have never been aware of direction arrows on these check valves but it's easy enough to see how they work. :think: As you say Hymac manuals were never the best. Hymac had a policy of constant development and improvement and the manuals never k...
by FOWLER MAN
Thu Jan 24, 2019 11:37 am
Forum: Excavators
Topic: Hymac 580 C Cross-Line Relief Valve Adjustment
Replies: 14
Views: 3048
Flag: Wales

Re: Hymac 580 C Cross-Line Relief Valve Adjustment

Thanks Fred for clarifying that....I will be working with the machine towards the weekend doing some digging and will swap these afterwards... Yes...there is a Tee on the flexible pipe which feeds into VB3... I will try to do it on a concrete surface so as if I drop something (which always happens)...
by FOWLER MAN
Wed Jan 23, 2019 4:59 pm
Forum: Excavators
Topic: Hymac 580 C Cross-Line Relief Valve Adjustment
Replies: 14
Views: 3048
Flag: Wales

Re: Hymac 580 C Cross-Line Relief Valve Adjustment

Hi Alex, No bother at all. The Valves you circled look like the ones. They are each teed into one of the two feeds to the Staffa motor. The one feed for clockwise and the other for anticlockwise rotation. They close under pressure when the slew is operated,(or under load), and open when off load to ...
by FOWLER MAN
Mon Jan 21, 2019 3:55 pm
Forum: Excavators
Topic: Hymac 580 C Cross-Line Relief Valve Adjustment
Replies: 14
Views: 3048
Flag: Wales

Re: Hymac 580 C Cross-Line Relief Valve Adjustment

Hi, I'm sure Jeremy will have sorted you out, but in answer to your question the cross line release valve only has one pressure setting so there is no way to vary the pressure to left or right. You problem is probably with one of the two check valves which you will find in the tubes feeding the Staf...
by FOWLER MAN
Sat Jan 19, 2019 12:32 pm
Forum: Loaders/Backhoes
Topic: Staliser ram rebuild.
Replies: 3
Views: 293
Flag: Wales

Re: Staliser ram rebuild.

Hi Thanks very much for your answer to my question. When I reassemble the piston to the rod how do you get the dowel to line up with the hole in the rod? Do you just drill a new hole or do you mark the piston and rod before removal? Thanks in advance. Sam. If fitting new rod and or piston nut they ...
by FOWLER MAN
Fri Jan 18, 2019 7:22 pm
Forum: Excavators
Topic: Total novice just bought a JCB 5C - help!
Replies: 10
Views: 884
Flag: Wales

Re: Total novice just bought a JCB 5C - help!

Hi Malcom, I too wish you success with your purchase. The engine servicing you will be familiar with. I don't know the 5C but here are a few pointers for the hydraulics. There will be a washable meatal suction strainer on the pickup in the hydraulic tank and in a long service machine like yours it w...
by FOWLER MAN
Tue Jan 15, 2019 4:32 pm
Forum: Loaders/Backhoes
Topic: 3c3 - Cleaning hydraulic oil strainer
Replies: 5
Views: 207
Flag: Wales

Re: 3c3 - Cleaning hydraulic oil strainer

Hi, When you remove the plate you will loose all the oil in the reservoir, say about half the total hydraulic oil. Be prepared for, (from memory), possibly 15 or 20 gallons, (100 litres). Drain the oil through the drain plug in the plate before removing it. Fully extend all rams to minimise the oil ...
by FOWLER MAN
Wed Jan 02, 2019 9:22 pm
Forum: Loaders/Backhoes
Topic: Staliser ram rebuild.
Replies: 3
Views: 293
Flag: Wales

Re: Staliser ram rebuild.

Hi, It's not an Allen bolt under the seal, but a dowel. The dowell will have a threaded hole tapped into it so that you can insert a bolt to pull it out. JCB also use Threadlock or Loctite to secure the piston nut and gland seal, (end cap), housing. These are usually very tight and difficult to undo...
by FOWLER MAN
Sun Dec 30, 2018 9:11 pm
Forum: Heavy Haulage
Topic: Classic pictures Updated 19/02/2019
Replies: 3035
Views: 289922
Flag: Wales

Re: Classic pictures Updated 27/12/2018

Is the dustcart a Market Transport body? They appear to be building a landfill embankment right beside a new build? For me the interesting thing in that pic. is the Cletrac, (BLAW-KNOX)??, dozer similar to the one "Dinky Toys" made some 70 years ago. http://www.classicmachinery.net/forum/...
by FOWLER MAN
Sun Dec 23, 2018 9:52 pm
Forum: Dumpers
Topic: George Fowell OR Fowler Dumpers
Replies: 71
Views: 14015
Flag: Wales

Re: George Fowell OR Fowler Dumpers

Yes Craig. I remember these GFs working on an extension to my school circa 1952.

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