Nick Drew Operator Services

[tone_rmz250]

Check valves? Is that what we in Sweden call "hydraulic hose rupture valves"?

yeah we call them check valves in this country, although i did hear our local volvo rep refer to them as rupture valves the other day!

[d4c24a]

tone does it make much differance to a 590 having check valves on
i used a 3cx once with them and it seemed a bit jerky
cheers graham

[tone_rmz250]

to be honest mate ive never had or tried a 590 with check valves

[d4c24a]

sorry mate i thought i read somewhere you had them fitted my mistake

[tone_rmz250]

no probs had them fitted on my new volvo 135blc when i had it!
we did almost have them fitted on it for lifting but we dont really use it for lifting that much! maybe something to consider on the next new one tho!

[Robban_C]

tone does it make much differance to a 590 having check valves on
i used a 3cx once with them and it seemed a bit jerky
cheers graham

As far as I know some "check valves" can make a machine a little jerky but sometimes the valves can be adjusted to minimize the problem. Adjustment is about adjusting the pressure needed to open the valve. With a high opening pressure it might be that the cylinder don not start moving when you apply very low pressure on it and then it suddenly starts mowing when the pressure reaches the opening pressure of the valve. Some valves can be adjusted by schims (maybe that is not the right translation? "Thin metal washers") or by screws and there are probably some valves that cannot be adjusted.
This is what I have been told but I have no experience from this myself, so you have to try this out for yourself if needed.

[superkerb]

Hi Nick, Did you drive a 215b for James King on the Oakham by-pass a few years back ????

[Nick Drew]

Hi Nick, Did you drive a 215b for James King on the Oakham by-pass a few years back ????

Hi Johnny,

No I didn't work on the Oakham bypass with the lads, I was operting the 215DLC on a site in Cambridge for them which I think was before the Oakham job started. I also worked for the King's around Northampton in 96-97 .. great lads to work for and a great firm all round in my opinion. Would not hesitate to go back if I was in their neck of the woods

Did you work on the Oakham job mate ?? Not far from the Cat factory in Desford I think

Nick