Mercury GO BOLDLY SeaPro 500hp Operation And Maintenance Manual page 110

Fluid Drain Hose
a
a - Gearcase fill/evacuation tube
b - Fluid drain hose lock button
4. Remove the gearcase vent filter or cap from the vent tube. The vent tube
is located behind the fill/evacuation tube.
b
a
a - Gearcase vent tube
b - Gearcase fill/evacuation tube
MAINTENANCE
64627
b
100
8M0129230
Aids in the removal of engine fluids.
Connect to a fluid transfer pump.
72281
72553
eng