Pro Boat PRB3500 - Manual (Page 11)

11
Use a 1.5mm hex wrench to loosen the
setscrew that secured the drive shaft to
the motor adapter.
Slide the drive shaft out of the stuffing
box. It will pass close to the rudder, so
make sure the rudder is straight when
you remove the drive shaft.
Place the end of the PRB0100 Grease Gun
w/Marine Grease (see your local hobby
shop) against the drive shaft. Apply
grease along the length of the shaft.
Slide the shaft back into the stuffing
box. Use a paper towel to remove excess
grease near the propeller that oozes out
when inserting the shaft.
Note: Running the Motor Lifeboat
RTR in salt water could cause
some parts to corrode and is not
recommended. If you run the boat
in salt water, rinse it thoroughly
in fresh water after each use and
lubricate the drive system.