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Big Rigs & Semis Discussion of Diesels Used for Transportation of Goods

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  #1  
Old 02-06-2010, 09:29 PM
gump's Avatar
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Status: On my 4th Cummins truck

   
Default International Paystar 5000 PDL

Here's a good one for y'all. We have a whatever year Int. Paystar 5000 at the mine we use to repump the explosives. The Power Divider Lock (PDL) does not work, but the head truck operator swears it does. He says it kicks itself out in tough terrain so as not to break an axle or whatever. Now we all know that pretty much defeats the purpose of the PDL. I know it doesn't work because when you get the rear tires off the ground when going over bad stuff the rear tires spin free, and you stop forward motion. The truck also has FR and RR lockers. My question is how do you go about fixing something like this? I don't have any idea what to look for on a heavy duty duel axle truck. You can flip the lever in the cab and hear air release when it's turned off from on, but it just does not work. Help me out so I can prove the stupid guy wrong.

gump's Sig:01 Dodge QC LB HO Cummins, 590hp/1460tq, drag comp, lots of lift, bagged rear, 40" tires, big stacks
70 Plymouth Duster, 408, 727, fast street car and killer bracket racer
1995 12V, 450 hp, totaled and still my favorite; 2005 CR, hated it, sold; 2001 24V non-HO, sold
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  #2  
Old 02-06-2010, 09:55 PM
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not 100% sure but it should be actuated by air and you should be able to flip the switch and here the locker engage......check power to the solnoid and air supply it....don't quote me I could be wrong

dustys24valve's Sig:2002 cummins, Quadzilla Adrenaline, Air Dog 100, BHAF, 4'' straight pipe, my work in progress when money allows


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  #3  
Old 02-06-2010, 10:04 PM
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also listen at the locker at the front of the front rearend and see if you can hear engaging
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  #4  
Old 02-07-2010, 01:21 AM
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Make sure the air line going to the Power divider in the front rear is connected and not leaking. Sounds obvious but I see this all the time at work. Then try taking a rubber tiped blow gun to the fitting and see if you can hear the Power divider engaging. There are no relays to check, it should be a supply line right off the switch all the way to the front rear.

dieseldocter16's Sig:01 dodge 2500
00 Ford f350
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  #5  
Old 02-09-2010, 08:07 PM
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The Power divider will only transfer some of the engine torque between axels. It will use both differentials in other words. It doesn't neccassarily lock the two axles in. Any of the 4 drive wheels will turn. rather than only one of the 2 on the rear axle. The lockers (the cups on the side of the differentials with the airline) will lock in so both wheels on the axle will turn at the same time.
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  #6  
Old 02-11-2010, 08:12 PM
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I understand. The problem is neither of the front wheels will turn under power, even with the front rear and rear rear lockers engaged. I would think then that all four tires should turn under normal conditions. Many times I have got the rear tires of the ground on uneven terrain and the fronts won't do anything.
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  #7  
Old 02-12-2010, 12:11 AM
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Broken axle shafts?
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  #8  
Old 02-12-2010, 09:21 AM
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Never thought of it, but that could be the issue.
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  #9  
Old 02-12-2010, 09:34 AM
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x2 on the broken axle ,some of the ih are air to disengage and spring loaded to engage all three of my ih trucks are this way,they have ih rears in them

yj junker's Sig:09 6.7 cummins QC/SB ,H&S egr & cooler deletes,Mini max tuner,5" flo pro exhaust,custom rail protector/headach rack,eagle alloy wheels and toyo open ctry 285/75/17's,buddy ramp tailgate A must have for loading
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  #10  
Old 02-12-2010, 01:12 PM
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its possible also that the power divider itself has come apart. the spiders in the power divider shattered.
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