Furuno 1932 MARK-2 - Manual (Page 11)

1-4
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.
RFunit
Hex head bolt
M10X20
SUS 4pcs.
Hex head bolt
M8X25
SUS 2pcs.
Spring Washer
M10 SUS
4 pcs.
Cover
Pan head screw
M3X8 4pcs.
Upper chassis
Square bushing
Lower chassis
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.
11. Do steps 6-8 in “Outside fixing holes”.
1.5 Display Unit Mounting
Mounting considerations
When selecting a mounting location for the
display unit keep in mind the following points:
• Provide adequate space behind and
around the unit to permit circulation of air
and to provide convenient access to the
rear connection.
• Even though the picture is quite legible
even in bright sunlight, keep the display
unit out of direct sunlight or at least shaded
because of heat that can build up inside
the cabinet.
• 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
operator 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
mounting knobs. 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 con-
nectors.
• The compass safe distance of 0.75 meters
(standard compass) and 0.6 meters (steer-
ing compass) should be observed to pre-
vent deviation of the magnetic compass.
• Even though the display unit meets wa-
terproof standard IPX-5, the connection of
external buzzer, radar plotter and/or re-
mote display can affect waterproofness.
Watertight integrity cannot be guaranteed.
When these modification has been done,
the display unit should not be mounted
where exposed.
Mounting
The display unit is designed to be mounted
on a tabletop or bulkhead.
1. Using the hanger as a template, mark
screw locations in the mounting location.
2. Fix the hanger to the mounting location
with five M6 tapping screws (supplied).
3. Fit the knob bolts to the display unit. In-
stall the display unit in the hanger. Tighten
the knob bolts securely.