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Fixing holes inside szcanner unit
This method requires removal of the RF unit
in the scanner unit to access inside fixing
holes. Use hex head bolts, flat washers,
spring washers and nuts (local supply) to
mount the scanner unit, confirming lengh of
bolts.
1. Loose four scanner bolts to open the scan-
ner unit. Refer to Figure 11 for location.
Hex head bolt
M8X25
SUS 2pcs.
Hex head bolt
M10X20
SUS 4pcs.
Spring Washer
M10 SUS
4 pcs.
Figure 10 Scanner unit chassis, upper
chassis separated
2. Unplug connector connected between up-
per and lower chassis.
3. Separate upper chassis from lower chas-
sis by removing two hex head bolts.
4. Remove cover by unfastening four pan
head screws.
5. Remove connector from RF unit .
6. Remove RF unit by unfastening four hex
head bolts.
7. Lay the corrosion-proof rubber mat (sup-
plied) on the mounting platform.
8. Fasten the lower chassis to the mounting
platform with hex head bolts, spring
washers, flat washers and nuts (local sup-
ply ), and then coat flat washers, nuts and
exposed parts of bolts with anticorrosive
sealant. Cut a slit in rubber bushing and
insert bolt into bushing. Do not use seal
washers.
9. Reassemble RF unit, cover and upper
chassis.
10. Set four knob caps (supplied) into
outside fixing holes.
1-4
Upper chassis
RFunit
Pan head screw
M3X8 4pcs.
Cover
Square bushing
Lower chassis
11. Do steps 6-8 in "Outside fixing holes".
1.5 Display Unit Installation
Mounting consideration
When selecting a mounting location for the
display unit keep in mind the following points.
•
Even though the display unit is waterploof,
it is recommended that the display unit
must be mounted inside an enclosed cabi-
net.
•
Provide adequate space behind and
around the unit to permit circulation of air
and to provide convenient access to the
rear connectors.
•
Locate the display unit in a position where
you can view and operate it conveniently
but where there is no danger of salt or
fresh water spray or immersion.
•
The orientation of the display unit should
be so the radar screen is viewed while
the operatior is facing in the direction of
the bow. This makes determination of your
position much easier.
•
Make sure you allow enough clearance
both to get to the connectors behind the
unit and to allow you to get your hands in
on both sides to loosen or tighten the knob
bolts. Make sure you leave at least a foot
or so of "service loop" of cables behind
the unit so it can be pulled forward for
servicing or easy removal of the connec-
tors.
•
The compass safe distance of 0.5 meters
(standard compass) and 0.4 meters
(steering compass) should be observed
to prevent deviation of the magnetic com-
pass.
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