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Assembling the scanner unit
The scanner unit consists of the scanner radiator and the scanner unit chassis, and they are
packed separately. Fasten the scanner radiator to the scanner unit chassis as follows:
1) For the XN20AF, XN24AF, attach two guide pins to the underside of the scanner radiator.
2) Remove the waveguide cap from the radiator bracket. The cap may be discarded.
3) Coat the waveguide flange with anticorrosive sealant as shown in Figure 1-2.
Anticorrosive sealant
10 mm
O-ring
5 mm
Hole for
a guide pin
Hole for
a guide pin
Figure 1-2 Coating the waveguide flange with anticorrosive sealant
4) Coat fixing holes for the scanner radiator with anticorrosive sealant.
5) Grease the O-ring and set it to the O-ring groove of the radiator flange.
6) Set the scanner radiator to the radiator bracket.
7) For the XN20AF, XN24AF, coat hex bolts (M8 x 40, slotted washer head, 8pcs.) with
anticorrosive sealant and use them to loosely fasten the scanner radiator to the scanner unit
chassis. For the XN12AF, coat hex bolts, flat washers and spring washers with anticorro-
sive sealant and use them to loosely fasten the scanner radiator to the scanner unit chassis.
8) Remove two guide pins (inserted at step 1), and then tighten fixing bolts.
CAUTION
CAUTION
Be sure to remove the guide pins.
Injury may result if the guide pins loosen
and fall.