Furuno CH-250 SONAR User Manual


 
12
7. If the gap at a side is more than 0.5 mm, install a shim to make the gap within 0.5 mm.
a) Unscrew four M10x50 bolts.
b) Unscrew four countersunk screws, then attach the shim with the countersunk screws as
shown below.
Hex. bolt
(M10X50)
Flat washer
Nut
Flat washer
Spring washer
Countersunk screw
(M4x16)
Guide plate
Shim (1.0)
Shim (1.5)
Hex. bolt
(M10x70)
Installing shims