|
Tips on replacing gears.
After flying into a tree when I first got the Heliocopter I needed to replace a gear I striped. The connecting gears come in sets of two, so I replaced both. They can be found on E-bay with free shipping and take about 5 days to receive them. I would recommend having a back-up set of gears and and other breakable items on hand.
Since I could find no instructions on how to disassemble the Hawkspy 711, I took lots of pictures before disassembly and these came in very handy when I reassembled the copter. I wasted a lot time because I had no instructions. With these tips, it shouldn't take more than a couple of hours. I read one person's review who said he could do it in 45 minutes, but he didn't say how.
Tools needed: a set of small Phillips head screw drivers. I used a set of 1.4 mm to 3.0 mm with long shafts and twisting heads that worked fine.
1. Remove the blades. 2. Remove the canopy by pulling on both sides where it has tension fasteners. The front light is fastened with tape and comes out to free the canopy completely. 3. Remove the camera and landing gear. Always put screws back into the holes that hold the part. 4. Remove both lower shrouding pieces. The top shrouds don't need to be removed. The charging port on the right side, does not need to be removed. On the left side, a housing for an electronic piece does need to be removed. 5. Take pictures of the exposed gear box and notice how they fit together. Take lots of pictures because they will come in handy upon reassembly. 6. There are four recessed screws that hold the the gear assembly together. They are accessed from the bottom where the landing gear was. Unscrew these and the gear box will separate. The front part of this assembly is tied by straps to the battery. Leave the straps in place. There is no need to remove these to access the gears. 7. Loosen the lower brass fitting on the lower large gear which secures the propeller shaft, and pull the shaft out from the top. Note there is an allighnment slot on the shaft for reassembly. The gears will separate after this for replacement. 8. The rear connecting gear that connects the engine to the large gear that turns the shaft is the one I sheared and needed replacing. It goes in first with the brass bushing covering the spindle. To the front, is the other connecting gear that goes in second and fits below the the upper large gear that turns the shaft. This connecting gear has no brass bushing and goes in upside down when compared to the rear connecting gear. The last gear to go in is the lower large shaft gear and brass fitting. The brass fitting is on the bottom of the assembly. 9. Run the removed shaft back through the gear assembly, and tighten the screw found in the brass fitting at the bottom of the lower large shaft gear. Make sure screw is aligned with shaft groove. Tighten screw. 9. Reassemble parts in the way they came off. Refer to photos for help.
When assembling the gears, it will feel like you need three hands, but I managed with two. By placing the screws into the parts taken off, it was easy to reassemble the helicopter without missing a screw.
My impression of the helicopter after disassembly was that it was a pretty good quality unit overall. All the parts fit well and went back together smoothly. I learned a lot in the process about RC helicopters and enjoyed the experience, even though my patience was tested without instructions. Please let me know if I missed anything in these instructions.
Thank you.
Hide Signatures
|
Search This Thread
Printable Version
All Forums >> RC Helicopters >> RC Helicopter General Discussions >> Replacing Rotor Gear 
Replacing Rotor Gear - 
) and they arrived today.. 
