163
10a
CONTROL UNIT
252W1036
l
Checking the capacitor
Analog tester
Fitting part
Main terminal
Main terminal
461S007E
l
Inspection of "FET module" (2)
: Tightening torque
10a-3-3. Capacitor - inspection and replacement
l
Main terminal (M6)
l
Fitting part (M6)
Tightening torque
3.5 - 4.5 N
m
{0.36 - 0.49 kgf
m}
CAUTION
Use an analog tester to check the capacitor.
CAUTION
If it is found to break down IGBT module / FET
module, replace it.
2. If any continuities are shown, check
the Board comp. for any burning marks.
(Travel or Hydraulic : PBC107).
It is probably damaged also by electric surge
3. When installing the "FET module" to the "sink, heat",
be sure to apply the thermal conductive compound
[G-747] (Shin-Ethu Silicones or equivalent) to the
entire contact surface.
4. Apply the tightening torque shown on the right to the
main terminal (M6) and the base plate (M6).
1. Discharge the energy stored in the capacitor with a
resistor.
Refer the next clause "Procedure to discharge
capacitor".
2. Set the tester to the resistance range. (k
range)
3. Apply the positive (+) prove to the (+) pole of the
capacitor, and the negative (-) prove to the (-) pole.
4. First, the tester shows a few k
, then increase the
resistance and shows " " finally if the capacitor is
normal.
l
Check the appearance visually.
If the appearance looks no problem, check with
following procedures.
The above checking procedure is only for the
basic performance of the capacitor.
If you have any doubts, replace all capacitors.
CAUTION
Do not touch each terminal of "FET module"
directly.
The element is damaged because of static
electricity.
Remove the insulation cap which covers the
terminal of "FET module" immediately before
connecting the connector.
CAUTION
https://www.forkliftpdfmanuals.com/
