Furuno 1833 Installation Manual page 48

4. Fasten four spacers and washers (supplied with option kit) to the locations shown below.
5. Mate P109 on the ARP Board (option) to J109 on the SPU Board.
6. Fix the ARP Board and SPU Board with four pan head screws and spring washers
(supplied with option kit).
Spacer SQ15 (long)
3 pcs.
7. Reassemble the display unit.
4-2
J109
ARP Board attachment
Spring washer (M3)
4 pcs.
Spacer SQ9 (short)
1 pc.
P109
Pan head screws
(M3x6) 4 pcs.