Position arm correctly, flip back the cover at the base, and tighten the 13mm screw.

Break the wipers free from the windshield on these older cars before operating them -- the casting at the base of the arm is fairly soft, and evenutally it will wear enough from slipping that it will not hold.

Same problem on the Volvo 740, by the way.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!