Installation of the ADU
3-18
Chapter 3: Installation
98-146706-A
3.3.1
To install the ADU
Prerequisites
• Check for potential interference, read more in
Interference from radar, GPS and other
• Install the ADU at a location where
vibrations are limited to a minimum
.
• Maximum allowed cable loss
20 dB at 1950 MHz. This is to ensure optimum
performance of the system.
Installation procedure
To install the ADU, do as follows:
1. Install the mast with the mast flange and have the 4 M12 bolts ready.
2. Undo all shipping buckles, take off the wooden top and remove the casing.
3. Unscrew the 4 bolts holding the ADU on the wooden platform.
4. Attach a webbed, four-part sling with a belt to all 4 lifting brackets.
5. Attach 2 tag lines of suitable length to 2 lifting brackets and man them.
6. With a crane lift the ADU off the wooden platform and move it on top of the ADU mast.
It is important to maintain
vertical orientation of the ADU center line
.
7. Install the ADU on the mast flange with 4 M12 bolts and washers. Read carefully and
follow instructions given in
Tightening torque value: 30 Nm.
Always use
all 4 bolts
when installing the ADU.
Figure 3-16: ADU installation, webbed sling attached to the 4 lifting brackets
SAILOR900Ka-IM-98-146706.book Page 18 Thursday, July 16, 2015 11:07 AM
