Book doesn't seem to show it. I also haven't taken the scuttle trim from around to wipers to properly have a look. So the only advice I could give, is to try (if its actually possible) to take the lot out as a complete assembly to look how the rods are connected to the front wiper motor. Side note: Thinking about circular motion into lateral motion; the rod can be held to the motor shaft via C-clips
Thanks N185. Have removed the scuttle trim - rods are interconnected to each other and to the motor shaft by a ball & socket arrangement which is the difficulty - they are impossible to separate from each other. Cannot remove as an assembly as bodywork won't allow that. Thanks for response anyway.