CDL usage ???

I engage the CDL in the RR on all loose surfaces. Say you're travelling fast on loose gravel and into a turn a wheel spins out (either air-bourne, or in a bull dust hole etc) Without the CDL that's all your traction momentarily lost! That means your control of the vehicle. Land Rover recommend you use it on all loose surfaces, and I find that makes sense.

Disengaging it takes a little effort, so it's worth wiring in the light, as the light will let you know when it's been disengaged. When I drove Land Cruisers in the snow, I found their transmission wound up very quickly, and coming off a snow track onto a sealed road, I had to give the accelrator a light tap to induce some wheel spin as I slid the t/case back into 2WD. I use a similar technique with the RR, as I pull back onto the bitumen I leave the LHS wheels on the loose edge of the road, hit the accelerator slightly and disengage the CDL.

Leaving it engaged on a sealed twisty mountain road could wind your transmission up pretty quickly. I've heard of a L/Cruiser that was driven off Mt Buller with the CDL engaged, then onto Mansfield - by which time the transmission was wrecked. - Another good reason to wire in the light.

Its a good habit to get into engaging it as soon as you come off the bitumen. It dos'nt matter what range you need to go into after that, but you dont have to worry about the CDL untill you hit the bitumen again. Its too late to engage it once your in a jam??. Also using it all the time whilst off road ensures it works when you need it. Your dash will have a light in it depending on year model as I think the 89 model hade it on the l/h of the dash next to the heater controls, maybe?????.Whatever the case have a good reliable indicator light. Just ask MickG!!!.

Regards Justin

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Originally Posted by byron

Th Diff Lock Warning Light must be adjusted by screwing the switch body in or out in its position on top of the Transfer Case.;)

Just adjust by screwing inwards until it lights up when Diff Lock is on fully and positively. ;) Do NOT screw in too far!

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What he said.:D

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Originally Posted by Tusker

You can engage & disengage on the move provide the front wheels are pointing straight ahead. I only do this at walking speeds, but apparently it can be done at 80 kph. Wouldn't recommend it though.

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CDL can be engaged at any speed. The only time to NOT engage is when the diff is actually working, i.e. turning corners, loss of traction, etc...

Changing from Hi-Lo should only be done at speeds no faster than a walking pace.

M

The Army doctrine for the CDL in their 110's is everytime you go off road, first thing on is the CDL. by habit I usually do it but the other weekend I had to have 2 stabs at a mud obstacle, being Tail end Charlie I thought it may have been due to the ground torn up by the other 10 vehicles before me but to my dismay I had forgot the CDL..put it on and presto up and over first try;)

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In my experience, almost everywhere off the bitumen. The theory says engage it before you hit an obstacle.

You'll find it faster & more stable on high speed dirt with CDL in. Just knock it out for tight, 3 point turns where there's no tyre slip.

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same here :D :D

The centre diff lock uses springs to engage it - the lever only applies pressure on the spring and position of the lever does not mean that the diff is locked or unlocked.

The switch should be adusted down the minimum necessary for it's contacts to close. If it is too far down, the spring can not lock the diff.

The switch is on top of the front output shaft housing, behind the linkage from the diff lock lever. It has 2 spade terminals on top for the wiring. The body of the switch is threaded and screws into the housing. A lock nut prevents it from loosening.

The switch is in series with the indicator lamp in the dash panel. The wiring goes from the lamp to one spade terminal on the switch, then from the other switch terminal to earth.

https://www.aulro.com/afvb/images/im...2006/09/15.jpg
I had to drive through a forest at one time to get to work,, loose gravel yarda yarda--
about 40 kays each way,, at first the CDL was great,, then I discovered the extra fuel bill,
( :rolleyes: stop laughing please--)

cdl adds maybe 10-15 %

mind you, the daily trip only took, um, er -- 30 mins with the cdl in---

not really sure if it was more fun with it in or out:D:D:D

I can't believe all you fella's use the CDL on gravel. :eek:
I drive the stuff everyday and never want to use it. CDL on fast gravel = understeer
It's got to be really slippery for me to throw it in, otherwise it's much nicer without it.

maybe--

but how much oversteer do you want in a vehicle 2 metres tall?? (which requires a modicum of power to achieve;))

straight is good.
straight is fast.
straight does not roll over at 120kph.


edit1.
[not a Tdi dig ;)]