Removing Bearing; Removing Coupling; Removing Printed Circuit Board (Pcb) - Hitachi FSG Series Service Manual

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WARNING: TURN OFF all power source switches
5. Loosen the screw of the coupling by a hexagon wrench.
6. Remove the motor, after removing the fixing band for the
motor. Perform this work by supporting the motor by hand.
2.4.6

REMOVING BEARING

1. Remove the optional air panel according to the item 2.4.4,
"Removing Optional Air Panel".
2. Loosen two (2) fixing screws fixing the bearings and shaft
by a hexagon wrench.
3. Remove the bearing.
2.4.7

REMOVING COUPLING

1. Remove the optional air panel according to the item 2.4.4,
"Removing Optional Air Panel".
2. Remove the fan assembly according to the item 2.4.5,
"Removing Fan Motor".
3. Remove the bearing according to the item 2.4.6,
"Removing Bearing".
4. Remove the coupling and the turbo fan after removing the
fan assembly.
2.4.8

REMOVING PRINTED CIRCUIT BOARD (PCB)

1. Remove the intake air grille according to the item 2.4.2,
"Removing Intake Air Grille".
2. Remove the electrical box cover according to the item
2.4.3, "Removing Electrical Box Cover".
3. Pull out the PCB holders (Holder A: 6pcs., Holder B: 1pc.)
by pinching the expanded part of the holders by long-nose
plier and remove the PCB.
NOTE:
Do not touch electrical components on the PCB.
Do not apply big force to the PCB. If applied, it will be
faulty.
counter-
clockwide to
loosen
Hexagon Wrench
Fixing screw
Fixing
Screw
Screw
Bearing
Holder A (6pcs.)
Holder B (1pc.)
PCB
Electrical Box Cover
2
SERVICING
25
Motor
Turn
Coupling
Band
Casing
PCB
Expanded Part of Holder