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SAB Heli Division Goblin Urukay Manual

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MAINTENANCE
*On the Goblin, areas to look for wear include:
* Motor belt
* Tail belt
* Damper
* Main gear and pinion
The lifespan of these components varies according to the type of flying. On average it is recommended to replace
these special parts every
100
flights.
*The head tends to lose rigidity after a while. Check this condition every
20
flights. Preloading with precision shim washers,
it is possible to vary the rigidity of the head.
*Check all uniballs often.
*The most stressed bearings are definitely those of the tail shaft. Check them frequently.
All other parts are not particularly subject to wear.
*Periodically lubricate the tail slide movement and its linkages as well as the swashplate movement and its linkages.
*Lubricate the main gear with proper Lubricant every 20 flights.
*Check the screws that are highlighted in the following images frequently, make sure you remain tight (
fig.2
and
fig.3
).
*To ensure safety you should do a general inspection of the helicopter after each flight. You should check:
* The maintenance of proper belt tension.
* The proper isolation of wires from the carbon and aluminum parts.
* That all screws remain tight.
ABOUT HPS2 and HPS3
The new HPS head offers an independent dampening system for each blade grip,
there are three dampening settings:
A = Soft for smooth response.
B = Medium.
C = Firm for direct and precise response.
In the kit, there is the damper for medium setting H0426-B
Other Setting >> p/n H0426-S
ABOUT HPS3 SETUP
3 blade rotor heads require a much lower cyclic gain on flybarless systems.
We recommend that you set your gain at least 30% lower than the gain you
normally use on your 2 blade rotor head helicopters.
You can start increasing the gain after you complete your first flight.
Running too high of a gain can induce a violent oscillation that can potentially
cause damage to your helicopter in flight.
With 3 blades rotor head, it is very important to have a perfect tracking
Often, unusual vibration are determined by wrong tracking
TIPS:
To remove the dampeners,
you can use a flathead
screwdriver through the
hole as shown.
Page 33
Chapter 16, Maintenance
… 35 …


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