PRB08033 Pro Boat Valvryn F1 RTR Manual

Valvryn™ 25
Maintenance
Drivetrain Lubrication
Always replace the drivetrain parts when they are damaged
or show visible wear or injury and damage may result.
Lubricating the flex shaft is vital to the life of the drivetrain.
The lubricant also acts as a seal, keeping water from
entering the hull through the stuffing tube.
Lubricate the flex shaft, drive strut, and all moving parts
after every 30 minutes of operation.
1. Use a 5.5mm nut driver to remove the propeller nut
from the propeller shaft.
2. Carefully remove the propeller from the propeller shaft.
3. Use a 2mm hex driver to loosen the set screw on the
motor coupler.
4. Carefully remove the flex shaft from the boat.
Tip: If the flex shaft is difficult to remove, use small
tongue-and-groove pliers (multi-grip) to hold the motor
coupling while rotating the shaft clockwise as you
remove the flex shaft from the boat.
NOTICE: Rotating the shaft counter clockwise inside of
the motor coupler will damage the flex shaft, requiring flex
shaft replacement.
NOTICE: The outer bearing and composite spacer can
dislodge from the rudder housing when removing the flex
shaft. Take care not to drop the bearing and spacer.
5. Inspect the bearing for signs of wear. Use Dynamite
Precision Oiler: Medium (DYNE0100) to lubricate the
bearing if it does not need to be replaced. Use new
bearings and seals (PRB286053) as a replacement.
Tip: The spacer dimensions are 6mm x 2.66mm x
4.17mm.
6. Remove the old lubricant and material from the flex shaft.
7. Lubricate the full length of the flex shaft assembly up
to the drive dog using marine grease (DYNE4200 or
DYNE4201).
NOTICE: When lubricating the flex shaft, do not lubricate
the first 20mm of the flex shaft. If grease gets into
the motor coupler, it may cause the flex shaft to slip
inside of the coupler, thereby damaging it and requiring
replacement.
8. Insert the flex shaft into the stuffing tube.
9. Use a 2mm hex wrench to tighten set screw.
NOTICE: Running the boat in saltwater could cause
some corrosion. If you run the boat in saltwater, rinse it
thoroughly in freshwater after each use and lubricate the
drive system. Use water displacement spray sparingly.
NOTICE: Because of its corrosive effects, running RC
boats in saltwater is at the discretion of the modeler.
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