to engage cdl .....

[onebob]

Like many on this forum i have retro fitted a CDL shifter to my Disco 2. I been wondering when wanting to engage the centre diff lock is it allowable to be rolling like it is when engaging low ratio. I was told the truck had to be stationary and gearbox in neutral, but many times the 'bits' don't line up and the CDL can't engage and then you have to move the truck an inch or two forward or backward and try again.

I tried unsuccessfully online to find a Disco 1 Owner Manual for some guidance on the recommended method 'cos the transfer boxes are the same i believe.

What do others do??

onebob

[warren9981]

Depends whether manual or auto box.
My Previous D1 (Manual) you could shift from low range to high range on the move. Handy if you are towing a heavy load.
My current D1 (Auto) you need to put the box into Neutral to change from low to high or vice versa. I usually stop the vehicle and roll forwards/backwards using gravity and then shift the lever. Presumably you could shift L to H on the go if you move to neutral first then back into drive.

[Pedro_The_Swift]

huh?
the CDL can be engaged at any speed on a loose surface,,
just slot it across and alls good:cool:

D1 and 2 CDL's are a use it or lose it affair;)

[onebob]

huh?
the CDL can be engaged at any speed on a loose surface,,
just slot it across and alls good:cool:

D1 and 2 CDL's are a use it or lose it affair;)


would you say 5kms/hr - I have an auto trans, should it be in neutral or in drive ??

[sniegy]

Shifting CDL as Pedro has said at "any speed" up to 80km/h in a straight line will work.
Shifting High range to Low range should be done at walking pace or slower with the palm of the hand against the shifter.

Cheers.

Sent from my iPad using Forum Runner

[warren9981]

Oops. Got confused.
Pedro is correct for CDL. I was thinking of high to low.

[OffTrack]

would you say 5kms/hr - I have an auto trans, should it be in neutral or in drive ??

Pretty much any speed providing you aren't spinning a wheel. Keep it in drive.

Range change from hi-lo can be done at speeds below 8kph. Range change lo->hi can be done at up to 30-40kph, but there is a technique for doing this that involves revving to specific figure, then letting revs drop to a certain point before shifting up. I haven't been game to try it out yet, but Tom Sheppards The Landrover Experience book goes into detail about how it's done.

[onebob]

Pretty much any speed providing you aren't spinning a wheel. Keep it in drive.


.... so the AT can be in drive;) vehicle rolling yes? - well my CDL doesn't seem to want go in.

CDL does lock in sometimes if i'm stationary, AT is in neutral, wheels are straight, and the hand brakeis off. If it dont go in first up i find i gotta roll forward or backward a bit until it finds the slot - does that sound right??

onebob

[1976_michelle]

*grin* all of this assumiung you have the lever thingy in your cab and are not hanging underneath with a spanner trying to do it manually yeah?

[Pedro_The_Swift]

....
CDL does lock in sometimes if i'm stationary, AT is in neutral, wheels are straight, and the hand brakeis off. If it dont go in first up i find i gotta roll forward or backward a bit until it finds the slot - does that sound right??

onebob

This sounds like the procedure for selecting low range in my Brumby:p:p

[OffTrack]

.... so the AT can be in drive;) vehicle rolling yes? - well my CDL doesn't seem to want go in.

CDL does lock in sometimes if i'm stationary, AT is in neutral, wheels are straight, and the hand brakeis off. If it dont go in first up i find i gotta roll forward or backward a bit until it finds the slot - does that sound right??

onebob

Onebob,

I suspect you are being a bit too cautious! None of the mucking about you are doing should be necessary. ;)

The cdl might not lock straight away but you can move the lever to the locked position, and keep driving. The CDL should lock reasonably quickly - half a km tops. Unlocking is a similar process, move the lever to unlocked position and keep driving. If conditions allow I usually unlock about a km from the bitumen. If you have any windup in the transmission you might need to stop and reverse up a bit to get the transmission to unlock.

With the 03/04MY SLABS ECU you get three chimes when the CDL locks or unlocks. Not sure if the pre-facelift ecu does.

Bear in mind that the cdl dash light reflect the actual state of the cdl - if it's lit the cdl is locked and vice versa.