Thread: Plumbing schematic LT95 CDL vacuum controls

the valve is a 5 port 2 position valve yes the valve ports the not selected side to atmosphere, thats why you hear a sucking noise behind the dash from the valve if the diaphragm fails.

the top 3 are vent, vac supply, vent

the bottom 2 are engage and disengage.

From memory Red goes to the outboard position for the actuators on the box and is the disengage function
White goes to the inboard postiion and is the engage postion.

where that goes on your particular valve depends on the orientation of the ports and spool on the valve you get

OEM part number BYG2049

you can use a 4 port 2 postion valve in the same place its basically the same but the exhaust ports are joined internally to a single outlet.

the electrical version
https://www.ebay.com.au/itm/15478997...J47PBe5tqCyK8W
the manual version
https://www.ebay.com.au/itm/22704971...Bk9SR8bH-LnKZg

as with all things, the generi part numbers for a local pnuematics suppliers are the part numbers in the listing

Does this help or do you already have it?

BYG2049.JPG

The RPS says that tube 14 is red, 15 is white, 17 is black.

This is the switch.

Thanks Dave and Ron.

As to Ron's question, no I don't have the manuals at this location, and don't want to take my Perentie apart because its doing an RSL event on Saturday, ( this switch not for that vehicle).

Originally Posted by Blknight.aus

the valve is a 5 port 2 position valve yes the valve ports the not selected side to atmosphere, thats why you hear a sucking noise behind the dash from the valve if the diaphragm fails.

the top 3 are vent, vac supply, vent <snip> ...

....<snip>the electrical version
https://www.ebay.com.au/itm/15478997...J47PBe5tqCyK8W
the manual version
<snip> ...

...<snip>

This gives me an alternative option.

The install is for the intermediate axle on my Defender RB-6x6 Ikea (because it came to me flat packed).

I could use the electrical solenoid connected to an instantaneous switch on the CDL cable for the LT230, this would engage the lock on the middle axle at the same time as the CDL is engaged.