Reverse Switch

[goudacheese]

Has anyone installed the reverse backup switch? I have been looking all over the transmission trying to find where it installs and the only bolt that I can find that is big enough is where you fill the transmission! I was told it is above the shaft, but I still don't see it.

[Jim LaGuardia]

right above the trans output flange is a 17mm plug, pull that and you will see a plunger. (see picture)

You may have to cut the tail off the plunger to make it work, or if you have a new style one with a recess, just pull the old one out and replace with new one

[Ugo]

I confirm - I had to cut the "tail" with a dremel tool.
BTW, being afraid of risk of dropping the plunger into the gearbox, I put the reverse gear before undoing the screw plug.

Ugo
1977 710K
1990 716K
Torino, Italy

[gunipinzmutt]

Do I have to buy the switch from magna steyr or is it commonly available in the market? I have seen it in the spare parts catalogue with nr 7111850750, Kostal 8860; was it installed also in other cars?
Thanks

[Ugo]

I am sure there are several alternatives.
I bought a Fiat Iveco spare part ... small Iveco vans and trucks have a ZF transmission, and presumably ZF use a standardized switch (and thread) on gearboxes they produce.

Ugo

[gunipinzmutt]

Thanks Ugo, your help is always useful!
gunipinzmutt

[ExpeditionImports]

Readily available switch. Check with the Unimog dealers, same switch as used on the Clauss overdrives....whole lot better price.

Cheers,

Scott

[EuroPinz]

Hi there;

Here are the parts number:

7161225391 Kontaktbolzen ATS 24.2 (little connecting shaft)
7161850320 Rückfahrschalter ATS 666.4 (reverse switch)
7162850330 Anschlusssatz ATS 186.9 (Reverse switch cover with wires)






Best Regards

Jacques

[EuroPinz]

... here a few more pictures:






Good Luck

Jacques