kelvin12 Report post Posted July 1, 2011 G'Day All, Just stumbled across this forum and was impressed. Not sure exactly where this question should go so added it here, hope its right. I need some help here regarding an Allison HT750DR auto. I have this trans fitted to a 6v92TA Detroit with Jake brake. On the bottom of the transmission under the converter housing there is a 2 pin sensor, I am not 100% sure if the Jake switch should be routed through this sensor switch or not. I have been told the sensor is to detect transmission lock up but can't get a definite answer over here as to whether or not this should be so. Is my thinking right here or not. Also is voltage a problem here with this sensor. My old motor which was replaced ran 24 volt electrics, this new motor ran 12 volt when I got it. I have fitted the old 24 volt accessories to this new installation as near everything on the bus was 24 volt. I am in Australia so hence the 24v. stuff. Thanks for any help in advance. Dirk Share this post Link to post Share on other sites
wolfe10 Report post Posted July 1, 2011 Dirk, Welcome to the FMCA Forum. And G'day to you down under. My wife and I spend a delightful 6 weeks traveling in your country-- not near enough. Allison is already closed for the Fourth of July holiday. Their after hours answering service gave me these two contacts in Australia for Allison Service: Heavy Automatics: 0882432111 NOTU Diesel Australia: 61882850000 Note: Ya, the different number of digits in the phone number made no sense to me, but had them repeat it and that is what they said. I also have the number for tech support here in the U.S. (eastern time zone), but suspect they are off until 7/5/11: Allison help line 800 252 5283. This is a U.S. toll free number and may not work from Australia. Allison's main number is 317 242-5000. Ask for technical support. For the level of detail you want, you really should contact Allison or one of their servicing dealers who can pull out schematics for your transmission. Suggest you have your transmission serial number handy when you contact them. Brett Share this post Link to post Share on other sites
kelvin12 Report post Posted July 2, 2011 G'Day Brett, Thank you for the quick reply, Glad you enjoyed your time down here with us, remember you are always welcome again. Thank you for the numbers, I think I have rang one of the numbers previously but will give it another shot. Unfortunately here in Australia, especially in NSW there is a fair bit of reluctance to give help over the phone, the usual comment is, "We will have to see it here in the shop" which is another way of saying we want a service fee. Leaving a message for the tech. blokes is a dead end as they never get back to you. I afraid down this end of the work customer service is in short supply. However I will give them another shot, failing that I'll contact your US number. Dirk Share this post Link to post Share on other sites
