Durango 2WD V8-4.7L Flex Fuel (2009)
Wiper Arm: Description and Operation
Wiper Arm - Operation
Front
FRONT
The front wiper arms are designed to mechanically transmit the motion from the wiper pivots to the wiper blades. The wiper arm must be properly
indexed to the wiper pivot in order to maintain the proper wiper blade travel on the glass. The combination of the drive link, articulating link, wiper arm
pivot end, the drone pivot and the wiper module bracket creates a four link system that articulates the wiping action of the right wiper arm to effectively
clear a larger area of the windshield glass.
The tapered mounting hole in the left wiper arm pivot end or in the right wiper arm links interlock with the serrations on the tapered outer circumference
of the wiper pivot shafts and the drone pivot, allowing positive engagement and finite adjustment of these connections. The mounting nuts lock the wiper
arms to the threaded studs of the pivot shafts. The spring-loaded wiper arm hinge controls the down-force applied through the tip of the wiper arm to the
wiper blade on the glass. The hook formation on the tip of the wiper arm provides a cradle for securing and latching the wiper blade pivot block to the
wiper arm.
Rear
REAR
The rear wiper arm is designed to mechanically transmit the motion from the rear wiper motor output shaft to the rear wiper blade. The wiper arm must
be properly indexed to the motor output shaft in order to maintain the proper wiper blade travel on the glass.
The tapered hole in the wiper arm pivot end interlocks with the serrations on the outer circumference of the tapered motor output shaft, allowing positive
engagement and finite adjustment of this connection. A hex nut secures the wiper arm pivot end to the threads on the rear wiper motor output shaft and
the plastic nut cap snaps over this connection for a neat appearance. The spring-loaded wiper arm hinge controls the down-force applied through the tip
of the wiper arm to the wiper blade on the glass. The receptacle formation on the tip of the wiper arm provides a cradle for securing and latching the
wiper blade to the wiper arm.