L322 Range Rover System Description and Operation
WIPERS AND WASHERS
DESCRIPTION AND OPERATION
84-17
The motor drives a gearbox which drives the wiper blade across the headlamp in an arc. The motor spindle protrudes
through a finisher below the headlamp. A tapered spline provides positive location for the wiper arm which is secured
to the spindle by a nut.
The wiper arm attachment hole has tapered splines which mate with the splines on the motor spindle. The wiper arm
has a pivot point, close to the spindle attachment. A tension spring is connected to the wiper arm on each side of the
pivot point and applies pressure to maintain the wiper blade in contact with the headlamp lens.
A plastic cap, located on the arm pivot point, covers the spindle attachment nut. The cap also contains an adjustable
ball jet, which directs washer fluid onto the headlamp lens. The cap, when installed, connects and seals onto the
hollow motor spindle, through which the washer fluid flows to the jets.
The wiper blade is attached to the wiper arm with a clip that allows the blade to pivot. The blade comprises two yokes
to which the rubber wiper blade is attached. The yokes ensure that the pressure applied by the arm tension spring is
distributed evenly along the full length of the blade.
