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Needing some info I have had field service out to check loader and backhoe pressure it has OEM new filters the pressure is set at 2875 the backhoe stalls under a load the loader struggles to pickup a load of dirt my local dealers can't tell me if the loader has a relief valve one says it does the other dealer says its under the seat any ideas
Is your loader valve under the seat or up front.
Show some pictures.
Hyd outlet block has a relief and the loader also has 1. Backhoe has 6. The 3pt well have 1 and a safety valve.
Thanks ill try that
The BH should have one main relief, and maybe a work port relief for each spool.Quote:
Originally Posted by Leejohn
That's right,I think the hyd block relief takes care of the backhoe.
dale55 ,
Please show a picture of the input side of the BH.
Did you find out anything yet?
I have seen more than a few BH's, and they all had a relief valve.
What do you think would happen if you plugged in the pressure hose QD, and forgot to plug in the return or PB hose QD hose in a BH valve with out a relief valve. The main relief might catch the deadhead, might not.
A BH valve with a relief would instantly sound off maybe protecting the hoses, valve and what else.
If it did not have one, I would install an external relief valve.
I'm sorry I have been busy working it, I got the dealer to print me a parts list out of the hydraulic system, since I have good pressure they want to run a flow test and check the suction screen, they did tell me the loader does not have a relief valve , there is one at the main block below the loader frame and one under the seat and one main in the backhoe control valve, it could be as simple as a bad o ring or debris in one of the quick disconnects, thanks for your help JJ and Lee John I'll post back when I get it figured out dale55