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How to turn off converter lock up for certain gears ZF


Haydos87
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On 3/31/2021 at 4:35 PM, Steve752 said:

Regarding those 5 ZF Converter Schedule Tables (e.g. ZF03885 Converter Schedule 2 Manual Shift Mode) I wonder if someone can help as to the meaning of the three columns for each gear, L, M & H  ?

 

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did you work this out mate

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occurred to me it may part of a TCC partial lock strategy viz. Light, Medium, Hard   still not 100% sure though & havn't verified.                                                                          

Not sure if the the ZF runs it,  but common these days to see TCC partial lock (e.g. controlled approx 50 rpm TCC slip)  - helps keep the fuel economy benefits right down at low rpm , but the slip isolates out otherwise annoying driveline booms & vibe disturbances  - above certain rpm then can transition to full TCC lock  etc..

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