ADAPTER 4865191 - Caterpillar

Transmission Quick-Shift - This will enable the transmission to automatically shift from first speed into second speed when the operator moves the transmission control from the FORWARD position to the REVERSE position. When the direction is shifted from the REVERSE position to the FORWARD position, the transmission will remain in second speed.Note: A quick-shift can only occur when the transmission is in first speed and the operator is moving the transmission control from the FORWARD position to the REVERSE position.
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Press the top of the quick-shift switch in order to activate the quick-shift function.
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An indicator on the front dash panel comes on when the transmission quick-shift is activated. Move the transmission control from the FORWARD position to the REVERSE position.
Press the bottom of the quick-shift switch in order to deactivate the quick-shift function.