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post #1 of 9 (permalink) Old 12-10-2014, 08:48 AM Thread Starter
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shifting transfercase into N for towing

Does anybody know if its really required to shift a transfer-case of a quadradrive2 (3CRD) into N-neutral, when towing a trailer or caravan?
It's written in the manual, but it seems to me as an long and idiot procedure.
Beside that, it looks like they say you also must put the selector into the P of Parking for driving with transfer-case in N !!!

Does anybody really do this all when towing a caravan ?
I wonder !

greezz
freddy
from Holland
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post #2 of 9 (permalink) Old 12-10-2014, 08:57 AM
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shifting transfercase into N for towing

I'm not sure I'm following.

If you're towing something *with* your Jeep, you clearly don't want the transfer case in neutral. (You wouldn't go anywhere)

You will *need* to put the transfer case in neutral if you're flat-towing the Jeep itself behind something else.

The TC neutral procedure is to tow the Jeep, not to tow with the Jeep.

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post #3 of 9 (permalink) Old 12-10-2014, 01:24 PM
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Short answer, if you're towing your Commander, you need to put the xfr case in neutral or you're likely to damage the automatic transmission.

Long answer: When you tow a vehicle on its drive wheels, the rotating wheels will back drive the driveshaft and it will back drive the xfr case and transmission. Automatic transmissions rely on the engine input to drive their lubricating and pressure pump, so if you back drive an automatic transmission from the driveshaft output, the parts will spin at high speed with no lubrication. Transmission damage will ensue.

If you tow a vehicle, you want to avoid towing it on its drive wheels.

If its a FWD or RWD only vehicle, you lift the drive wheels and tow it on non-drive wheels.

If you must tow a vehicle on its drive wheels (the O.M. will give you guidance to the max speed and distance you can do it without damage) more than the O.M. recommends, you need to disconnect and remove the driveshaft to prevent it from back driving the automatic transmission.

If you have a manual trans, the O.M. will tell you if its permissible to just put the manual trans in neutral.

4WD, you would think would be even more complicated, since all wheels are drive wheels. BUT, many 4WD have a xfr case that can be put into neutral. When you put the xfr case in neutral, it disconnects the drive shafts from the automatic transmission, and you can tow on either or both axles without back driving the automatic trans and causing damage.

Those with QTI, we're screwed, the xfr case can NOT be put in neutral, check your OM, but I "think" you have to have your vehicle towed on a flat bed with all 4 wheels off the ground. OR disconnect and remove the driveshaft on the axle being towed.

If you have a RWD Commander, then follow the advice for the RWD above.


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Last edited by Mongo; 12-11-2014 at 07:08 AM.
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post #4 of 9 (permalink) Old 12-10-2014, 01:26 PM
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Quote:
Originally Posted by commander2006 View Post
Does anybody know if its really required to shift a transfer-case of a quadradrive2 (3CRD) into N-neutral, when towing a trailer or caravan?
Doh! It looks like you have the concepts confused. The requirement to put the xfr case in neutral is for when your Commander is being towed, as in, the Commander is the one being pulled behind another vehicle.

If you're towing with your Commander, as in, you're pulling something else behind your Commander, those instructions do NOT apply.


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post #5 of 9 (permalink) Old 12-11-2014, 04:44 AM Thread Starter
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Thank you all for answering, but I do understand even less now

In my Dutch user guide is spoken about pulling a caravan or trailer behind the commander.
It is written that I must shift the transfer case into N and selector in P.

In the English manual they talk about towing a trailer s well, see section 5 page 312 to 327.
Here the same procedure to shift the transfer into N

Hopefully somebody can explain what is right thing to do by pulling a caravan behind the commander 3.0 CRD.

Please, use simple language, Iím from Holland, sure I do speak English but
. . . you know . . .

Iíve put the eng. manual temporary on my site so you can download it for a while
http://www.lara-engineering.nl/cms-jeep-manual.html



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post #6 of 9 (permalink) Old 12-11-2014, 06:16 AM
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shifting transfercase into N for towing

For towing a caravan behind the Commander, you should NOT shift the transfer case into neutral.

Or

niet de overdracht geval geen versnelling in zijn vrij te slepen met uw voertuig

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post #7 of 9 (permalink) Old 12-11-2014, 07:35 AM
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Something must have gotten lost in the translation of the Owner's Manual. to Dutch.

If you're towing, and the Commander is the pulling vehicle in the front, you use the transmission and transfer case control levers just like you would if you were driving. In most cases that means, leaving the transfer case in 4 High (the lever in its normal position) and when you're ready to drive, move the transmission level to "D" for drive.

Some Commanders come equipped with a "TOW" button on the dash, you would press that if you were towing. The "TOW" button just sends a signal to the transmission control module to tell it to use a alternate shift schedule to better handle the additional load of towing.

The things you read in the O.M. about putting the trans in park and then putting the transfer case in neutral is for when you're towing and the Commander is the vehicle that is behind, being pulled.


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post #8 of 9 (permalink) Old 12-12-2014, 02:59 AM Thread Starter
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Thank you all very much. Youíve been very helpful to me.
I normally go to my own Jeep a specialist http://www.robboerema.nl/ for regular maintenance.
Heís not an official dealer but a very good specialist and Jeep rider himself.
Rob also thinks there is a very stupid mistake in the translation from English to Dutch. Maybe cheap google translation ? ;-)
But he also asked a official Jeep dealer and this dealer is also thinking of an translationfailure.
Anyway, he doesn't know of such problem at all with caravanning.
So . . .Iím gona have my wintercamp, pulling my caravan behind my big fine diesel commander as usual. It's all clear to me now.

Thanks for helping me out, here is something back to you
Iíve searched for sidebars and have looked at several possibilityís everywhere in Europe, US ans UK.
I finally came to this company in the UK http://www.direct4x4.co.uk/jeep-comm...ps-accessories
They had the best sidebars, not just chromed iron! but real stainless-steel, fine finished and easily but robust mounting devices.
I can recommend this company to everyone who has the plan for mounting quality sidebars for low prices.
I paid £ 224,99 / Ä 283,- plus Ä35,- shipping. which is Ä 382 cheaper than at Mopar in Holland and which are not StSt but only chromed iron.
So, best buy I think is at direct4x4 in the UK.
See my album for the look at mine http://www.mijnalbum.nl/Album=TKJACGTB
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post #9 of 9 (permalink) Old 12-12-2014, 08:56 AM
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The Commander is no different than any other 4WD vehicle when it comes to towing. So, if the instructions in the Owner's Manual tell you something very wrong, it must have been a bad translation.

If the Commander is the vehicle doing the pulling in the front, you do NOT put the XFR case in neutral, that will result being unable to drive and tow.

If the Commander is the vehicle being towed another vehicle in the front doing the towing, then yes, you want to put the XFR cse in neutral, this results in disconnecting the drive shafts from the transmission. This is true for many, many 4WD vehicles. While a 4WD vehicle is towed, the spinning wheels spin the driveshafts, the driveshaft will back drive the transmission and it can damage the transmission. That is why you put the XFR case in neutral.


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