Top Speed Tunnel Hull Instruction Manual Download Page 9

3. Slide the Pushrod Seals onto the mounts. Use

scissors to trim the end of the seal 1/32" [.8mm] so the
pushrod can exit. Use the rubber O-Rings to secure the
seals onto the mounts.

4. Temporarily install the radio box using two rubber

bands as shown in step 7.

5. Thread a 2-56 Nut onto each of the 17-1/2" Pushrods.

Add a Silicone Retainer to a Threaded Metal Clevis and
thread the clevis onto the pushrod about 14 turns.

6. Remove two of the four arms from a cross servo arm.

Switch your radio system on and center the steering trim.
(See your radio manual for details.) Install the servo arm so
it is 90-degrees to the centerline of the servo. Switch your
radio system off and proceed to the next step.

7. Slide a pushrod through one of the pushrod seals in the

radio box. Attach the clevis to the steering arm of the engine.

8. Position the engine so it is 90-degrees to the transom.

Enlarge the outer most hole in the servo arm using a 5/64"
[2mm] drill bit. Mark one of the pushrods where it crosses
the servo arm. (Make sure the radio box is fully seated
against the hull before marking the pushrod.)

9. Make a 90-degree bend in the pushrod on your mark,

then cut off the excess wire 3/8" [9.5mm] above the bend.
Insert the bent wire into the servo arm, then secure the
linkage using a Nylon FasLink

®

as shown in the sketch.

Bend the pushrod if necessary to provide clearance around
the fuel tank.

10. Locate the 24" [610mm] Pushrod Tube and cut it to a

length of 11-1/2" [293mm]. Roughen the outside of the tube
using 180-grit sandpaper. Slide the tube 2-1/2" [64mm] into
the remaining hole in the radio box as shown. Use medium
CA to glue the tube to the radio box.

GP

9

Summary of Contents for Tunnel Hull

Page 1: ...his instruction manual in its entirety before beginning assembly It contains important instructions and warnings concerning the assembly and use of this model Warning THIS MODEL IS NOT A TOY Assembly...

Page 2: ...1 FINISHING 12 Apply the decals and trim 12 FINAL PREPARATIONS 12 Balancing your model 12 Operation check 13 Range check your radio 13 Engine safety precautions 13 Operating procedures 13 Operational...

Page 3: ...ommended but not required NOTE It is recommended one of the servos have at least 65 Oz In of torque for use as the steering servo Waterproof bag for receiver such as the Kyosho TR 12 waterproof rubber...

Page 4: ...wn in the photo Slide the cross member S onto the front of the sides there is a slight upward curve at the front 5 Apply a few drops of medium CA glue to the joints where the cross members meet the si...

Page 5: ...photo While holding the servos in place mark the locations for the servo mounting screws onto the tray Remove the servos and drill 1 16 1 6mm pilot holes through each mark Mount the servos with the s...

Page 6: ...ch will attach and drill a hole using a 3 16 4 8mm drill bit Secure the switch using the Switch Retainer 12 Place the Switch Actuator onto the switch with the hole in the actuator facing towards the r...

Page 7: ...This is where the weight to balance the hull will be placed 1 Locate the Upper Tunnel Trim the upper tunnel along the lines scribed onto the tunnel 2 Use a 1 8 3mm drill bit to drill four holes into t...

Page 8: ...bottom hull are joined 1 Assemble the FuelTank using the instructions included with the tank Use the 90 degree tube when assembling the fuel tank 2 Position the fuel tank as shown in the photo Use one...

Page 9: ...one of the pushrod seals in the radio box Attach the clevis to the steering arm of the engine 8 Position the engine so it is 90 degrees to the transom Enlarge the outer most hole in the servo arm usi...

Page 10: ...Nylon Retainer onto the screw lock connector post on the opposite side of the throttle arm 14 Slide a silicone clevis retainer onto the clevis Slide the cable into the pushrod housing starting from in...

Page 11: ...enna Tube to a slight taper this will permit you to thread the hex nut on 6 Grasp the antenna tube firmly and thread one of the 6 32 Hex Nuts 1 4 6mm onto the tube with a pliers HINT If you find it di...

Page 12: ...llowing the boat to get up on plane faster and operate at a higher speed than without the speed strips The only modification to the speed strip would be to lightly sand the edges to re sharpen them if...

Page 13: ...ial in your face or eyes Keep your face and body as well as all spectators away from the plane of rotation of the propeller as you start and run the engine Keep these items away from the prop loose cl...

Page 14: ...e reassembling To dry electrical components use a paper towel to absorb the water droplets Then use a hair dryer to make sure they are completely dry Dry the inside of the radio box and reinstall the...

Page 15: ...e Top speeds in the same race can be a lot of fun especially if they are all using battery packs having the same number of cells If you must race boats having large speed differences try giving the sl...

Page 16: ...DD 10 00 EXP DATE NEXT DAY AIR ADD 20 00 PLEASE SEND CATALOG IL RES ADD 7 25 TAX TOTAL NAME __________________________________________ ADDRESS_______________________________________ CITY______________...

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