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Appendix 4 - Annual preventive maintenance
check list
No.
Item
1
Air filter
2
System fan
3
PSU module
Auxiliary pow-
4
er supply
RFID reader
5
6
LCD screen
7
PCBAs
Switching
8
relay / con-
tactor
Power relay /
9
contactor
Charging
10
cable
Protection
11
device
Note: I = inspection; R = replacement or refill; - = no maintenance needed
Description
Air inlet & outlet
clean, Air filter clean
Fan clean and spin-
ning smoothly check
Clean, wiring con-
nection and function
check
Clean, wiring con-
nection and function
check
Function check
Display sharpness
and backlight bright-
ness
Dust remove and
function check
Wiring connection
and function check
Wiring connection
and function check
Contact and insula-
tion inspection
SPD and RCD func-
tion check
0.5
1st
2nd
year
year
year
-
I
R
-
I
R
-
-
I
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
109
3rd
4th
5th
year
year
year
I
R
I
I
R
I
I
I
R
I
I
R
I
I
I
-
I
R
-
I
I
-
-
R
-
-
R
-
-
R
-
-
R
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