Furuno WR2120, Руководство по установке

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4.1.1. Service space for maintenance ATU and SPU
For maintaining inside the ATU, use the maintenance tool to lift and secure the upper radome by
350 mm as described in section 4.2.5.
It is possible to replace almost all components of ATU except Rotary Joint (SP RJ-AZ Assy).
For replacing Rotary Joint, it has to remove the upper radome to bring it down to the working
plane first. Then remove the antenna assembly and bring it down to the working plane either.
Service space is necessary also for SPU (a door should be fully opened), in order to be able to
replacing every parts in SPU.
4.1.2. Standard radar stand
The radar stand needs a structure as shown in Table 4.1 according to its height.
The height instead of the scaffold is as shown in Figure 4.3 from the work plane where the
service engineer can work to the top surface of the scaffold excluding the lifting fixture of the ATU
attachment portion.
○：
Necessary,
●：
Unnecessary
4.1.3. Installation and Dimensions of SPU
For SPU installation and the service space, refer to section 6.Outline drawing 2).
Case 1 Case 2 Case 3
Height of radar stand Below 0.9m Between 0.9 to 2 m Higher than 2m
Safety belt fix part
● ○ ○
Scaffold
● ○ ○
Storage structure
● ○ ●
Ladder
● ● ○
Ladder fix part Entrustment Inside radar stand
Figure 4.3: Radar stand
Table 4.1
Top of radar stand
Working plane
Radar stand
Height