Cobra Helicopter Goblin 500, Manual

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H0287
90
Boom Bolt
Safety lock
(H0287-S)
Socket Head
Cap M2.5x6
(HC018-S)
Metrix Nylon Hex Nut
M8H6.5mm
(HC224-S)
Plastic Wrench Nut M8
(HA016-S)
Socket Head Cap
M2.5x8mm
(HC020-S)
Finishing Washer M2.5
Socket Head Cap M2.5x8mm
...x4
...x4
Finishing Washer M2.5
(H0255-S)
Installation Of The Boom
- Make sure the 4 2.5x8 screws that go in the rear section of the side frames (2 on each side) are not installed or tightened all the way.
- Insert the boom in place helping enlarging the frame ( Fig 1,2 ).
- Push the boom forward until the nylon bolts bottom out against the end of the slot on the boom.
- Tighten the nylon bolts
- Insert or tighten the 4 side frame screws.
- For additional safety, install the boom bolt safety lock (Fig 3)
Tail Belt Tension
- Make sure the boom is assembled and installed correctly.
- Loosen up the tail case by loosening the 4 M3 screws.
- Mount the tail belt on the front pulley making sure the direction of rotation is correct (Fig 4).
- Adjust the belt tension by pulling on the tail case.
- Tighten the 4 M3 screws.
- Check that the tail output shaft is perpendicular to the boom (Fig 5).
- Connect the tail push rod to the tail servo.
- Make sure the tail belt and carbon rod are free, check the belt to ensure it is not twisted.
NOTE:
To remove the tail boom from the helicopter, it is possible to remove the front tail pulley
H0218-S without having to loosen up the tail case. Simply remove the locking screw and pull.
Copyright@2013 - SAB Heli Division - All rights reserved
Page 24
Chapter 14, Boom Assembly