Shimano GRX RX 815 Series Dealer's Manual page 189

MAINTENANCE
Replacement of the plate and the plate tension spring
5.
Install the cam unit and chain stabilizer.
Pay attention to the positioning of the convex section of the cam unit
TECH TIPS
• When installing, it helps to move the
plate while holding down the cam unit
and chain stabilizer.
• If there is resistance when moving the
lever switch to the ON position, the
components are installed correctly. If
there is no resistance, check the
position of the convex section of the
cam unit and then reinstall the
components.
Switch lever
189
Plate