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.
*Check the head control linkages at the thread between the two aluminum parts (
figure 1
). The play present in
this coupling is desired. Check after each flight that the play remains constant.
*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 silicone or Tri-Flow Synthetic grease , even though the gear is made of technopolymer,
a high mineral based filler, it still requires some lubrication.
*Check the screws that are highlighted in the following images frequently, making sure they 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.
Copyright@2012 - SAB Heli Division - All rights reserved
Page 34
Chapter 16, Maintenance
