RACOM RAy11, Руководство пользователя

Страница: 46 / 177

5.2.3. Lubrication and preservation of the antenna pivot
Before fitting the FOD unit bush onto the antenna pivot ensure that the "O" ring (part No. 1) is in the
correct position. It is also essential to prevent moisture getting in between these two parts. This moisture
could cause oxidation which would complicate disassembly of this mechanical coupling in the future.
For this reason we need to treat these surfaces with the lubricant grease which is supplied in the box
marked RAy bridge accessories. If you use a different grease for lubrication then it should be a Teflon
grease or a silicon lubricant grease.
Fig. 5.28: Grease points on the antenna pivot and FOD unit bush
Grease the internal area of the bush on the FOD unit (2) and the "O" ring (1) with a thin even layer that
allows the pin to slide easily into the bush without damaging the "O" ring. Grease the area beyond the
"O" ring on the antenna pin (3) with a thicker layer so that it fills the gap caused by the play between
the pin and the bush (max. 0.1 mm/ø) thus preventing moisture getting in. Installation should be carried
out according to the antenna installation description – see point f of this description.
RAy Microwave Link – © RACOM s.r.o. 46
Installation