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How to assembly FatBoy SS Gear Drive

What you need

  1. How to assembly FatBoy SS Gear Drive, Prepare parts for assembly: step 1, image 1 of 1

    • It is best to prepare all the parts for assembly

    • Hex Keys, Wrenches for wheel nut and wheel hub nuts

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  2. How to assembly FatBoy SS Gear Drive, Attach wheel mounting plate to wheel hubs: step 2, image 1 of 3 How to assembly FatBoy SS Gear Drive, Attach wheel mounting plate to wheel hubs: step 2, image 2 of 3 How to assembly FatBoy SS Gear Drive, Attach wheel mounting plate to wheel hubs: step 2, image 3 of 3

    • Use Provided M3 Bolts to attach wheel mounting plate to the wheel hub.

    • Nuts should face outside

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  3. How to assembly FatBoy SS Gear Drive, Attach wheel mounting plate to wheel hubs: step 3, image 1 of 1

    • Make sure to tighten nuts in star pattern to make sure equal tension on all bolts

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  4. How to assembly FatBoy SS Gear Drive, Preparation to install motors: step 4, image 1 of 3 How to assembly FatBoy SS Gear Drive, Preparation to install motors: step 4, image 2 of 3 How to assembly FatBoy SS Gear Drive, Preparation to install motors: step 4, image 3 of 3

    • If you using motors longer than 90mm (80100, 63100 and etc) mount motor directly to the baseplate and skip to Step 5

    • If using 63xx motors use a masking tape to prevent nuts from falling from motor mounting plate.

    • Attach the plate and use 4 x M3 bolts to attach motor plate to the motors

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  5. How to assembly FatBoy SS Gear Drive, Mount baseplate to the hanger: step 5, image 1 of 2 How to assembly FatBoy SS Gear Drive, Mount baseplate to the hanger: step 5, image 2 of 2

    • Use Loctite to secure grub screws on mounting hub

    • Tighten grub screws and make sure baseplate is flat and not angled

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  7. How to assembly FatBoy SS Gear Drive, Attach motor gear to motor axle: step 6, image 1 of 1

    • If your motor has keyway use provided keyway.

    • Use Loctite 648 to secure grub screws inside the motor gear to prevent loosening from vibrations.

    • Measure position lengthwise to stick out of baseplate

    • If motor axle sticks out of motor gear it will need cutting of as it would prevent lid from closing down.

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  8. How to assembly FatBoy SS Gear Drive, Attach motor to the baseplate: step 7, image 1 of 2 How to assembly FatBoy SS Gear Drive, Attach motor to the baseplate: step 7, image 2 of 2

    • Use provided 4 x M3 bolts to attach motor (with motor mount adapter if use)

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  9. How to assembly FatBoy SS Gear Drive, Attach wheel gear to the wheel for gear meshing: step 8, image 1 of 3 How to assembly FatBoy SS Gear Drive, Attach wheel gear to the wheel for gear meshing: step 8, image 2 of 3 How to assembly FatBoy SS Gear Drive, Attach wheel gear to the wheel for gear meshing: step 8, image 3 of 3

    • Use 5 x M4 bolts to attach wheel gear to the wheel hub for gear meshing.

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  10. How to assembly FatBoy SS Gear Drive, Mesh gears: step 9, image 1 of 3 How to assembly FatBoy SS Gear Drive, Mesh gears: step 9, image 2 of 3 How to assembly FatBoy SS Gear Drive, Mesh gears: step 9, image 3 of 3

    • Baseplate should be parallel to the wheel otherwise wheels will mesh on angle and will cause negative effects.

    • Attach wheel to the hanger and lower down motor to prepare gear meshing.

    • Motor gear and Wheel gear should be always parallel to each in all wheel position. If gears not parallel and at angle it can cause negative effects and product more noise than necessary.

    • If wheel gear one side is pulled in or further than other sides check wheel hub bolts probably one bolt is more tighten than others or otherwise

    • If wheel gear is more inside than motor gear use washers provided to pull wheel gear away from baseplate

    • Loosen up motor bolts so that motor gear would press wheel gear.

    • Use sheet of paper to drive it through wheel gear and motor gear. Spin wheel to push paper through the gears

    • After meshing is good tighten motor bolts

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  11. How to assembly FatBoy SS Gear Drive, Lock motor in position: step 10, image 1 of 2 How to assembly FatBoy SS Gear Drive, Lock motor in position: step 10, image 2 of 2

    • Tighten motor bolts to secure motor in correct position

    • Remove wheel from wheel gear

    • Use grease to lubricate gears.

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  12. How to assembly FatBoy SS Gear Drive, Close the lid: step 11, image 1 of 2 How to assembly FatBoy SS Gear Drive, Close the lid: step 11, image 2 of 2

    • Put the plastic lid with stainless steel plate on top of it and tighten all M2.5 bolts

    • Dont use too much force as plastic will compress

    • Lubricate V-Ring using grease on ID and on the flap. Mount the V-Ring on top of wheel gear

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  13. How to assembly FatBoy SS Gear Drive, Attach wheel to the wheel gear: step 12, image 1 of 1

    • Make sure 5 x M4 bolts are tighten securely.

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  14. How to assembly FatBoy SS Gear Drive, Repeat same for other side: step 13, image 1 of 1

    • Use same instructions for assembling another side

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  15. How to assembly FatBoy SS Gear Drive, Test spin: step 14, image 1 of 1

    • Do a test spin on the bench to make sure everything is fine and sounds okay

    • On the first test ride start by slowly accelerating and slowly braking to make sure everything is working fine.

    • If there is some minor vibration happening at specific RPM it can be some misbalance in wheel/gears which should disappear after gears sit down in their place.

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Conclusion

To disassembly gear drive, follow these instructions in reverse order.

Author

with 1 other contributor

Aurimas Niekis

Member since: 11/26/18

695 Reputation

3 Guides authored

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