Fujitsu Airstage J-II Service Manual page 200

6-2. INVERTER PCB removal
Screws (For Diode Bridge)
Remove the 4 mounting screws.
For screws of IPM.
Note the tightening torque at the installation.
1. Temporary tightening : 0.2 to 0.4N m
2. Final tightening : 0.98 to 1.47N m
For screws of Diode Bridge.
Note the tightening torque at the installation.
1. Temporary tightening : 0.2 to 0.4N m
2. Final tightening : 0.5 to 0.8N m
IPM
6-3. ACTPM removal
Remove the connectors.
Screws
(For IPM)
Diode Bridges
Spread the heat transfer compound on IPM and Diode Bridges
when you exchange INVERTER PCB by the repair.
Note at the installation.
1. Remove the old heat transfer compound as possible from IPM and
Diode Bridges when you exchange INVERTER PCB by the repair.
2. Spread the heat transfer compound evenly on IPM and Diode Bridges.
3. Prevent foreign matter from attaching to the surface of IPM and Diode Bridges.
Specifications for the heat transfer compound
Remove the screws.
For screws of ACTPM.
Note the tightening torque at the installation.
1. Temporary tightening : 0.2 to 0.4N m
2. Final tightening : 0.6 to 0.9N m
06-04
Hook
Remove the connectors and spacers.
- Manufacturer : Shin-Etsu Chemical Co.,Ltd
- Grade : G746
Screws
Spread the heat transfer compound on ACTPM
when you exchange ACTPM by the repair.
Note at the installation.
1. Remove the old heat transfer compound as possible from
ACTPM when you exchange ACTPM by the repair.
2. Spread the heat transfer compound evenly on ACTPM.
3. Prevent foreign matter from attaching to the surface of ACTPM.
Specifications for the heat transfer compound
- Manufacturer : Shin-Etsu Chemical Co.,Ltd
- Grade
Spacers
: G746