Mercury 10 FOURSTROKE Installation Operation Maintenance Warranty Manual page 62

Insufficient friction adjustment can cause serious injury or death due to loss
of boat control. When setting the friction adjustment, maintain sufficient
steering friction to prevent the outboard from steering into a full turn if the
tiller handle or steering wheel is released.
a
Remote control models
a - Tighten
b - Loosen
FEATURES AND CONTROLS
WARNING
!
a
Tiller handle models
b
31965
b
32190
52
eng