Huawei RTN XMC ODU V200 Quick Installation Manual page 19

Installing the ODU
Installing the Hybrid Coupler on the Antenna
b
Installing the Hybrid coupler on the Antenna
1. Apply lubricant on gasket ⑤ of the antenna interface of the hybrid coupler. (Note: End face ④ should not be
applied with lubricant.)
2. Apply anti-seize grease to the four M6 captive screws ③ of the hybrid coupler.
3. Slide guide pin ② of the hybrid coupler into guide trough ①, and then install the hybrid coupler onto the antenna.
4. Screw the four M6 captive screws ③ of the hybrid coupler part way in and then tighten them cornerwise.
①
The direction of the waveguide cavity of the antenna feeder
must be the same as that of the waveguide cavity on the
antenna interface of the hybrid coupler.
③
18 18
Apply lubricant on gasket ⑤ .
Do not apply lubricant on end
face ④.
②
⑤
④