Koden Electronics Co. Ltd RB718A Manual Do Utilizador
81
CHAPTER 6. MAINTENANCE AND INSPECTION
A qualified engineer should carry out most of maintenance work on this radar. If your radar set has
any problem, contact your local dealer for repair.
Very High Voltage is present inside the radar set. Do
not attempt to open the display rear cover or dis-
assemble internal module. When you open the ra-
dome, make sure to turn off the main power supply
at switch board.
Even if the radar is switched OFF, the radar set is
still powered with very small amount of current.
not attempt to open the display rear cover or dis-
assemble internal module. When you open the ra-
dome, make sure to turn off the main power supply
at switch board.
Even if the radar is switched OFF, the radar set is
still powered with very small amount of current.
The following table shows the maintenance by user. Please check each item periodically.
Tab. 6-1 Maintenance
Articles of consumption
The radar uses the life-limited parts as listed below that require periodic replacement.
(1) Magnetron
This part is used in the scanner unit. If distant echo images have become weak, the
magnetron probably may have degraded. In such a case, you need to replace this item.
Consult your local service agent for replacement.
Practical life to replacement: 3000hour(typ.) (500hour guaranteed by the magnetron
manufacturer)
magnetron probably may have degraded. In such a case, you need to replace this item.
Consult your local service agent for replacement.
Practical life to replacement: 3000hour(typ.) (500hour guaranteed by the magnetron
manufacturer)
(2) LCD back-light
This part used in the display unit. If the display screen is extremely dark and its illumi-
nation cannot be corrected by adjusting the screen brightness, the LCD backlighting lamp
may be faulty or may have burnt out. In such a case, you need to replace it. Consult your
local agent for replacement.
Period of the replacement: 15000 hours (typ.) (1000 hours at 0
nation cannot be corrected by adjusting the screen brightness, the LCD backlighting lamp
may be faulty or may have burnt out. In such a case, you need to replace it. Consult your
local agent for replacement.
Period of the replacement: 15000 hours (typ.) (1000 hours at 0
°
C
)
Inspection Interval
Inspection Item
Method of Inspection and Maintenance
3-6 months
Rust and looseness in
scanner unit
scanner unit
Check if the scanner’s fitting bolts are corroded.
Display screen of LCD
display
display
Clean the filter plate and LCD screen surfaces with a soft
and wet cloth. Avoid organic solvent.
and wet cloth. Avoid organic solvent.
6-12 months
Grease application to
antenna drive gear
antenna drive gear
Apply an even coating of grease* to the entire surface of
the antenna drive gear with a spatula or brush.
the antenna drive gear with a spatula or brush.
Check for contact of
connectors
connectors
Check whether connectors are properly connected. If not,
redo connection or make good contact by using a contact
restoring chemical agent or by polishing or replace with a
new one if necessary.
redo connection or make good contact by using a contact
restoring chemical agent or by polishing or replace with a
new one if necessary.
Antenna motor
brush(RA52/53/54)
brush(RA52/53/54)
Check the length of brushes. If the length is less than
6mm, replace both brushes with new one.
6mm, replace both brushes with new one.
!
WARNING