Pro Boat PRB4100B - Manual (Page 9)

Miss Geico 29
Maintenance
Always replace the flex shaft when it is damaged or
shows visible wear or injury and property damage may
result.
Lubricating the flex shaft is vital to the life of the
drivetrain. The lubricant also acts as a water seal, keeping
water from entering the hull through the stuffing box.
Lubricate the flex shaft, propeller shaft and all moving
parts after every 2–3 hours of operation. Always replace
any parts that show visible wear or damage.
1. In the hull, use tools to loosen the collet nut (A) from
the flex shaft (B).
2. Turn the rudder (C) and remove the flex shaft from
the stuffing box (D) and drive strut (E) at the rear of
the boat.
Tip: Use paper or cloth to touch the flex shaft.
3. Wipe lubricant and material from the flex shaft.
Lubricate the full length of the flex shaft assembly
up to the drive dog using marine grease (PRB0101 or
PRB0100). Also apply grease to the collet threads.
4. Carefully reinstall the flex shaft in the drive strut,
stuffing box and collet. If the flex shaft is difficult to
remove or install in the collet, use a flat screwdriver to
spread the grips of the collet.
Ensure there is a 1–2mm gap and a washer (F)
between the drive strut and drive dog (G) to allow for
flex shaft shrinkage under load
NOTICE : Running the boat in saltwater could cause
some parts to corrode. If you run the boat in saltwater,
rinse it thoroughly in freshwater after each use and
lubricate the drive system.
NOTICE : Because of its corrosive effects, running RC
boats in saltwater is at the discretion of the modeler.
Propeller Service
Always replace a damaged propeller.
1. Use a tool to loosen or tighten the prop nut (I) on the
prop shaft (F).
2. Align the propeller with the drive dog (J) on the prop
shaft and tighten the prop nut.
A
B
D
E
G
G
I
H
B
B
C
F
A
B
D
E
G
G
I
H
B
B
C
F
A
B
D
E
G
G
I
H
B
B
C
F
9
EN