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Topic: Speedometer Sender (Read 569 times) previous topic - next topic

Speedometer Sender

I replaced the speedo awhile ago but wasn't able to test it until now. The new one does the sweep action when the key is turned and displays the programed mileage but doesn't do anything when driving. I don't have the manual for the Allison 3060 trans. Anyone know where the sender is located? Thanks.
jor
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Re: Speedometer Sender

Reply #1 –
John, have you set the correct number of pulse's for tire size and rotation.

 The sender is on the transmission housing in the center.
The selected media item is not currently available.Bill&Doris 97 U270 36'
University of Parris Island Class of 66
Semper Fi  Build# 5174 MC#17094

Re: Speedometer Sender

Reply #2 –
Quote
set the correct number of pulse's

Thanks, Bill. I didn't realize that. Yesterday, I called Lauterdale Speedometer and got the instructions using the little button on the front of the speedo. I'll likely do the calibration next time out. I might, however, send it back and have them do it as they can input a mileage figure closer than my initial guess.
jor
93 225
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Re: Speedometer Sender

Reply #3 –
To set the tire rotation/size correctly, you have to follow a very specific procedure while running a accurate measure mile.  When I had to replace my speedometer I also thought is was the sending unit, until I found the right calibration procedure....    ^.^d
The selected media item is not currently available.
Gerry & Brenda
CHARLOTTE HARBOR, FL
1994 Grand Villa - # 4466
U300 Unihome - 6V92 Detroit
4 speed Allison - Jake Brake

Re: Speedometer Sender

Reply #4 –
Quote
To set the tire rotation/size correctly, you have to follow a very specific procedure while running a accurate measure mile.

Exactly what the speedo guy said. It registers both mph and miles; I had the pickup wire on the wrong terminal before. (looking down at the speedo induces dyslexia) Also, the schematic shows the pickup wire running to the Allison ATEC box. Anyhow, should work when I do that calibration. For future searches, here are the steps as explained to me.

Mark off a known mile on road.

Push button in and turn key on. It will display "Auto Cal"
Release button
Push button and start to drive (it will flash "start")
Drive 1 mile
Push button. It will display numbers like 29,000 and "test mode" and needle sweep, then display accurate data
That's it!
jor
93 225
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97 270
99 320

Re: Speedometer Sender

Reply #5 –
We replaced a VDO electric speedometer on a fire engine this week. It required some kind of a code from the manufacturer to get it to work. I wasn't directly involved so I don't know the specifics. It looked exactly like the speedometer in my U300 with the possible exception of the connectors on the back. It surprised me that it needed a code, that's the only reason I'm mentioning this. Contact the manufacturer to find out if this is the case with your speedometer instead of beating your head against the wall. The speedometer on the fire engine hasn't worked for many years even though a previous mechanic replaced it with a new one. He didn't know there was a code required. I didn't know that and the other mechanic here currently didn't know either.
Scott Cook
1991 U300 36' 6V92TA
Old Town Penobscot 16
1984 Honda VF1100C (V65 Magna)

Re: Speedometer Sender

Reply #6 –
When I installed the new speedometer I used gps and went one mile and set the VDO highway markers seem to indicate it is accurate.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Speedometer Sender

Reply #7 –
Quote
I used gps

Great idea. Thanks.
jor
93 225
95 300
97 270
99 320

Re: Speedometer Sender

Reply #8 –
and for Canadians reading this to get it to read in kilometers instead you drive exactly 1 kilometer
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


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