Rigid hydraulic pipes

[blenkie1]

We never ever wrapped anything in Denso on the car transporters or forestry machines. It was always car transporter hoses that used to bust have yet to see a harvester/forwarder one go. Must be road salt that make them corrode quicker. Would of thought the more in the elements the forestry machines would get the most abuse. I think one driver said they had been billed £700 for a call out and repair on one wagon on one hose!

One thing with the car transporters it was all BSP. Then moved into Forestry and it was JIC, BSP and OFRS. A bit of a learning curve!

 

[penfold]

The combination of denso tape being applied by bored deckies, salt water exposure and the aforementioned company policy mean that corrosion is an inevitability at sea. Even if the deckies could be induced to do it properly, some of the equipment has pipe entries so close together that you can't physically get the denso around them individually. Ultimately it's the salt that kills them; either the fittings corrode or more often the outer sheath of the hose perishes and cracks and the reinforcing goes shortly afterwards.

 

[tinman123]

The combination of denso tape being applied by bored deckies, salt water exposure and the aforementioned company policy mean that corrosion is an inevitability at sea. Even if the deckies could be induced to do it properly, some of the equipment has pipe entries so close together that you can't physically get the denso around them individually. Ultimately it's the salt that kills them; either the fittings corrode or more often the outer sheath of the hose perishes and cracks and the reinforcing goes shortly afterwards.

there is always pitfalls with everything isnt there.
as for the hose itself, once the outer sheath is damaged, its only a matter of time really.

One thing with the car transporters it was all BSP. Then moved into Forestry and it was JIC, BSP and OFRS. A bit of a learning curve!

indeed, and i see a lot more WEO type fittings appearing now, on mostly the agri end of machines.
its a good enough system as long as you RTFM,
which 99% dont til after they have them hammered off....
then of course there lies the problem of nobody actually having the right end so it gets cut off and they get handed a bsp end with a union.
the only thing i see the weo is good for, is speed of assembly tbh.

 

[blenkie1]

Had to look WEO fittings up! Forestry machines have them fitted where its tight, usually the grapple. Used to be a similar system in the coal mines. We just knew them as staplelock fittings and they would be fitted to machines built in the 60s. Even a miner with half a brain could change one. Used to use stainless staples to hold them together as the mine water was like acid.

 

[NickyEng]

Yeah once the outer rubber casing is damaged, the spiral HT braid starts to corrode away until it's so weakened that it eventually succumbs to the high internal oil pressure... And hey presto big mess to clean up and my phone rings.

 

[blenkie1]

Thats what happened on the car transporters, Europower were bad for it. I know one driver was charged £700 for one burst hose. Wagon was fully loaded and they couldn't life the decks to get at it plus the fact he could not get it unfastened as it was corroded so much. +working in dark/rain/lying in oil. Yes getting jobs like that must be a nighmare. Its ok in a workshop with bottles and space to work on it.

I had an argument with our manager when we did some refurbs on the trailers, we only replaced hoses that we thought might burst. I said replace the lot when the trailer/unit was being stripped. It would just take one breakdown and your profit was lost. Could not see it till he got that bill and then they were all replaced.

 

[NickyEng]

Thats what happened on the car transporters, Europower were bad for it. I know one driver was charged £700 for one burst hose. Wagon was fully loaded and they couldn't life the decks to get at it plus the fact he could not get it unfastened as it was corroded so much. +working in dark/rain/lying in oil. Yes getting jobs like that must be a nighmare. Its ok in a workshop with bottles and space to work on it.

I had an argument with our manager when we did some refurbs on the trailers, we only replaced hoses that we thought might burst. I said replace the lot when the trailer/unit was being stripped. It would just take one breakdown and your profit was lost. Could not see it till he got that bill and then they were all replaced.

Jesus mate that's a lot of money. I have never charged even a 1/2 of that for a 1" 4sp hose which costs a lot more to make . Maybe that's why I skint lol...I assume that was the leading national hose replacement company pal?

 

[blenkie1]

Not sure who did it but out of hours and would of been a real pain if a car was sitting over it. ABS cables, electrical cable all running along the same tray I could see it being a nightmare. Highways agency hanging about as well. Think he used a shed load of absorbent mats as well. Every jobs different I suppose but I thought £700 was steep.

Tried to get that point over to our manager replace the lot and that's it. It just takes one breakdown and when you factor in the driver standing about and the lost time while it's fixed it was cheap to replace everything. But hey ho they know best!

You will have to start charging more Nicky!!

 

[NickyEng]

Not sure who did it but out of hours and would of been a real pain if a car was sitting over it. ABS cables, electrical cable all running along the same tray I could see it being a nightmare. Highways agency hanging about as well. Think he used a shed load of absorbent mats as well. Every jobs different I suppose but I thought £700 was steep.

Tried to get that point over to our manager replace the lot and that's it. It just takes one breakdown and when you factor in the driver standing about and the lost time while it's fixed it was cheap to replace everything. But hey ho they know best!

You will have to start charging more Nicky!!

yeah think so mate, to give you an example of only job i have done with a cost like that to the customer. Had forgot about this one...
I travelled to Oban. (4 hrs round trip!!) 2 hrs on site since it was a nightmare to access the machine. I repaired a steel pipe which had been mangled causing the flexi to get fouled. Made a new 1M 3/8" bsp hose and filled with 50L hydraulic oil. (the machine was literally empty). The whole bill was 750.00...

 

[Mikey D]

Bit of a thread revival but I've finally got round to measuring up the pipe I need bending I will pm you later today Nicky with the dimensions . Here's a pic of the offending bodge

 

[Mikey D]