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I am new to this forum so i dont know if i have missed this subject.

I drove mixer from july 2000 to oct 2005 then left, i have recently returned to the industry in july of 2012, they are right once its in your blood you cant get rid of it.


The question i have is, In extreme cold weather what is the best way to get a drum to turn when it has stopped (before loading)?

When you first attempt to start a drum and the hydro fluid is like syrup we put hot water to the hydro filter which seems to work.

If you throttle up the truck the drum stops, using hot water on the filter starts it going again, If you throttle down it will restart also after a moment or two.
Also if you get it moving in the charge direction, and change directions you are back to square one, a stopped drum.
Is there a "best" way to work around this problem?
Thanks.
 

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Use oil with a lower viscosity.
 

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Welcome---We actually have a mixer driver as an active member----Mort---
Also a bunch of members who are familiar with fluid drives----some one will help---Mike---
 

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if hot water does it. use a propane torch to heat it up. the propane will not get the part hot enough to damage it, well, unless you are purposely trying to damage something.
 

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What do you call extremely cold weather?
Is the equipment parked outside during the night?
Are the hydraulic filters changed regularly?
Do you let the unit warm up for a while before you start to load?
 

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It sounds like the OP is working with the wrong concrete supplier using obsolete equipment with no weather protection irregardless of the weather that good suppliers cannot afford to run.

Here we have very cold weather and the good suppliers shut down some plants (whith hot mixing water and internal aggregateto funnel production through) and rotate trucks for annual maintenance schedule. The trucks are heated or plugged in and started before a driver gets there and they are ready to go.

Dick
 

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What kind of equipment are you using? We run newer McNeilus bodies (2003-2007), and we don't really have a problem with the hydraulic oil getting too viscous. Granted, it probably gets much colder in Maine (even though we're about the same latitude, go figure), but as long as you get that fluid circulating right when you fire the truck up, it would have to be pretty friggin cold to make the drum not turn.

Maybe post a pic of your truck so I can see where the pump is, etc. Maybe it isn't insulated enough. Also, do you know how long it's been since the system has been flushed?

Also, make sure to blow out your water system. Frozen hoses can turn a good day bad really quick.
 

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Discussion Starter #9
Thanks Mort,
I also figured we are close to the latitude, We flushed the hydro system since i posted this question so hopefully we have cured this problem.
We also run Mcneilus equiptment, this problem doesnt present itself too often i was just looking to see how other drivers have remedied this problem. We are a small family owned/run company. The owners purchased 4 new trucks last year, and over the years have updated the fleet.
 

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" We flushed the hydro system since i posted this question so hopefully we have cured this problem.
this problem doesnt present itself too often i was just looking to see how other drivers have remedied this problem."


The company i worked for had 120 mixers in 5 yards,and as far as i know we never had that problem,and all of our hydraulic pumps were front mounted,but we operated in Chicago and temps were usually no colder than the upper teens and rising before anyone would try to pour.

I would guess that by flushing the system you'll see an improvement though.
 
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