RAND KAR s.a. ASSEMBLY MANUAL XAIR HANUMAN 2007 October, 15
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5)Weight balance
Weighing operation must be done with 3 similar weighing machines on an horizontal surface.
CG=150xA/A+B+C
The result must be located between 22 and 38,5
6) Lubrication:
The ideal lubricant is a silicone spray (if unavailable, you can use a WD-40 equivalent, but it is not so clean); apply to all points likely to cre-
ate unwanted friction: control tube washers and pivots, elevator and rudder hinges, aileron and pedal bearings, all pivot bolts of sticks and parallelo-
gram, as well as the fork main axle during assembly.
In short, to obtain smooth, precise controls, you need: barely taut cables, barely tight bolts, and regular lubrication.
7) Preflight checks:
When you are all done, sit in the cockpit, and make sure the control-to-control surfaces system works perfectly, and gives the right responses;
this is nothing but vital common sense: it is no fun to find out during your first fly-around that the rudder cables have not been crossed. Some pilots
never get over the surprise.
So it’s imperative to make
all
the following controls:
- Stick back
=> elevator up
- Stick forward => elevator down
- Stick left
=> left aileron up and right aileron down
- Stick right
=> right aileron up and left aileron down
- Push right foot => rudder right
- Push left foot => rudder left
Notice: during the first 10 minutes of engine run-in, some unburnt oil can be blown out by the exhaust muffler. To avoid the stain of
the wing fabric, it is recommended to cover parts of the aircraft risking to be touched.
Only use sweet soap and fresh water to clean the fabric.
HAPPY FLYING ...
WEIGHT
FRONT WHEEL
A
RIGHT REAR WHEEL
B
LEFT REAR WHEEL
C
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