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Transfer Case Solenoid Logic

This document summarizes the switch logic and functions of an ADD41-VG 2600 transfer case. It has low range, highway range, and neutral settings controlled by switch signals to air solenoids S4109M and S4108M. In low range, solenoids Y4101 and Y4102 are pressurized while Y4103 is not. In highway range, Y4101 is not pressurized while Y4102 and Y4103 are. In neutral, Y4101 and Y4103 are pressurized while Y4102 is not.

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Sarra Chouchene
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199 views1 page

Transfer Case Solenoid Logic

This document summarizes the switch logic and functions of an ADD41-VG 2600 transfer case. It has low range, highway range, and neutral settings controlled by switch signals to air solenoids S4109M and S4108M. In low range, solenoids Y4101 and Y4102 are pressurized while Y4103 is not. In highway range, Y4101 is not pressurized while Y4102 and Y4103 are. In neutral, Y4101 and Y4103 are pressurized while Y4102 is not.

Uploaded by

Sarra Chouchene
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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ADD41-VG 2600 Transfer Case

Switch Logic S4109M S4108M N/O Switch signals = ESX 3


Low range Off On
HighwayRange On Off
Neutral On On

Air solenoid S4109M Highway range


ports S4108M Low range
Y4102
Y4101 Y4103

Low Range
Solenoid function Y4101 Y4102 Y4103
Low range O O X
HighwayRange X O O Highway Range
Neutral O X O
X = Air pressure O = No pressure
Neutral Longitudinal power
Note: For 8 x 6 drive the additional drive division = 1: 2
selector is permanently engaged
A A
Differential long lock
Additional drive

A
A
Power division principle

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