Chapter 11: Belt Tension & Adjustment - Oxy Heli 5 Instruction Manual

Use Two Screw Driver to lift up
Lower Main Shaft Bearing block
page 29
- Be sure the boom is assembled and installed correctly.
- Loosen the tail boom by loosening the eight Hex Cap Screws on Boom Mount.
- Adjust the Belt tension by pulling on the Tail Boom.
- Tighten the eight Hex Cap Screws on Boom Mount.
- The belt must have good tension. We suggest re-checking after a few
flights. We suggest to check belt tension often, before each flying session.
- If spool up get difficult, may Tail Belt is over tight,
recheck and eventually loose Belt tension little bit
- If the belt is often loose, you should check the lock system or belt integrity.
- Tests show that a hard 3D pilot can perform over 400 flights before the belt
will fail. We recommend replacing the Tail Belt after 300 flights, even if it
does not show wear, to avoid it breaking unexpectedly in flight.
- After a crash, spend some time checking Belt integrity and replace if any
teeth are missing.
Chapter 11: Belt Tension & Adjustment
Pull Tail Boom and lock
all Screw on Boom Mount
Use a Screw Driver to check
Belt Tension (suggested max
deflection is 1mm)
- Note: We recommend a tight
Belt tension.
- If spool up get difficult, may Tail Belt
is over tight, recheck and eventually
loose Belt tension little bit
- Check the Belt tension again
after the first 2 flights.
- With a new Tail Belt, when the
head is rotated slowly, it is normal
to hear a tooth sound as the belt
engages with the Main Pulley. This
sound is normal and will disappear
after a few flights and the necessary
"break-in".