L322 Range Rover System Description and Operation
WIPERS AND WASHERS
84-8
DESCRIPTION AND OPERATION
Front Wipers
The front wiper system comprises:
l
Wiper motor and linkage assembly
l
Washer reservoir and pumps
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Wiper arms and blades.
Wiper Linkage
1 Wiper spindle cap (2 off)
2 RH pivot housing assembly
3 Link rod
4 Tube
5 Motor crank
6 Link rod
7 Crank
8 LH pivot housing assembly
9 Bush
10 Sleeve
11 Bolt
12 Sleeve
13 Bush
14 Motor assembly
15 Bracket
The wiper linkage and motor assembly are available as separate components. The wiper linkage differs between LH
and RH drive models. The wiper motor is common to LH and RH drive models.
The assembly is located below the plenum grill in the engine compartment and is secured with bushes, sleeves and
bolts. The rubber bushes isolate the assembly from the body mountings.
The linkage assembly comprises a main tube, with a pivot housing at each end. A bracket is attached, offset along
the tube length, which locates the motor assembly. A motor crank is positively attached to the motor output shaft. A
link rod is connected to the motor crank and is connected at the opposite end to the RH pivot housing, via a crank.
The RH link rod has a pivot attachment for the LH link rod, which is connected at its opposite end to the RH pivot
housing, via a second crank.
The motor crank converts rotary motion from the motor output shaft into linear movement of the link rods. The cranks,
connected between the each link rod and pivot housing, convert the linear motion back to rotary motion of the pivot
housing. This rotary motion is passed to the wiper arms and blades causing the blades to wipe an arc across the
windscreen.