Option Unit - Furuno DS-8500 Installation Manual

1. MOUNTING
2. Attach the supplied handle to the square projection and then turn the handle 90°
to change the stopper position.
Square projection Square projection
3. After opening or closing the ball valve,
tighten the removed nuts until the handle
cannot be turned.
Also, remove four bolts (M16) to remove
the shaft and the transducer assembly.
After removing the assemblies, replace
the gasket and the gasket CR as shown
in the figure to the right.
1.5

Option Unit

1.5.1 Junction Box
The junction box forms a joint between the distribution box and the transceiver unit.
Installation considerations
• Keep the junction box away from noise-emitting electrical machinery, for example,
electric generator, radio transmitter, TV, etc.
• Although the box is splash proof, do not install it in places of high humidity.
• Avoid installing the box where temperature varies greatly, since moisture may pen-
etrate the box.
Procedure
Open the box cover, and fix the unit to a bulkhead, referring to the outline drawing at
the back of this manual.
1. Select a mounting location, referring to the recommendations listed above.
2. Remove the cover of the junction box.
3. Fix the junction box from inside with the supplied self-tapping screws (5×25).
4. Attach the cover again.
1-22
Handle Handle
Stopper Stopper
Valve: OPEN
Bolt Bolt
Valve: CLOSE
Gasket CR
M16 bolt
Gasket