Oldsmobile 12506172 Insert Assembly, Windshield Wiper

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If adjustment is needed, raise the hood and remove the wiper arms. Open the transmission adjustment window on the left side of the cowl vent screen. Loosen the transmission drive link-to-motor crank arm attaching screws, position the left arm and blade assembly to the transmission shaft, align the slot in the arm to the key-way, and push the arm down to engage the slide latch. Rotate the left arm assembly to a position one inch below the ramp stop. Tighten the attaching screws on the transmission link-to-motor crank arm to 4 ft lbs. While the left arm assembly is still below the ramp stop, position the right arm and blade assembly to the transmission shaft approximately one inch below the ramp stop. Push the arm down and engage the slide latch. Close the adjustment window and place the arm assemblies on the ramp stop on the vent screen. Check the wiper pattern and park position as specified.

Manually moving the wipers across the windshield should be avoided, as it can damage the motor and drive mechanism.

For 1991-up vehicles, use a suitable tool to disengage the retaining latch and remove the arm from the transmission shaft.