Shimano FC-T8000 Dealer's Manual page 17

INSTALLATION
Installing the crank arms
(C)
(z)
(A)
4
(B)
Push in the stopper plate and check that
the plate pin is securely in place, and
then tighten the screws of the left crank
arm.
Tighten both screws equally to the
specified tightening torque (12 - 14 N·m).
(z)
The illustration is of the left crank
arm (cross-section)
17
(A)
Plate pin
(B)
Stopper plate
(C)
Left crank arm
Tightening torque
12 - 14 N·m
NOTICE
•
The two screws should be tightened
alternately in stages rather than each screw
being fully tightened at once.
•
Spacers used vary according to the width of
the bottom bracket shell. For details, refer
to "Spacer installation method".
•
Set the stopper plate in the correct
direction as shown in illustration.