Fuji Electric FVR-C11S-7EN Series - Page 81

8 Maintenance and Inspection 8-4
FVR-C11S-EN
8
Table 8-2-1 Periodic inspection list
Check part Check item How to inspect Evaluation criteria
Control circuit
Control
PC board
and
connector
1. Loose screws or connec-
tors?
2. Unpleasant smell or
discoloration?
3. Cracks, dama
g
e, deforma-
tion, or excessive rust?
4. Electrol
y
te leaka
g
e or a
deformed mark on the
capacitor?
1. Ti
g
hten more.
2. Olfactor
y
and
visual inspection
3., 4. Visual
inspection
1., 2., 3., 4.
Not abnormal.
Cooling system
Coolin
g
fan
(1.5 kW
minimum)
1. Abnormal sound or
vibration?
2. Loose of bolts?
3. Discoloration
b
y
overheatin
g
?
1. Aural and visual
inspection. Turn
with hand. (Make
sure power is off)
2. Ti
g
hten more
3. Visual inspection
1. The fan must rotate
smoothl
y
.
2., 3. Not abnormal
Ventila-
tion wa
y
Clo
gg
in
g
-up or forei
g
n sub-
stance on heat sink or intake/
exhaust ports?
Visual inspection Not abnormal
Note: Use a capacitance measurin
g
instru-
ment available on the market which is
eas
y
to use.
Remark: If the equipment is stained, wipe it with
a cleanin
g
cloth, which is chemicall
y
neutral.
Vacuum-clean the dust.