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II. Maintenance Procedures
F. Replacing the Main PC Board
Note: Static electricity is a potential problem and could damage the PC board if a charge is transferred from yourself to the board
during handling and installation. Keep the board in the anti-static packaging until ready to install. It is best to use anti-static
protection such as a grounding wrist strap. Avoid performing this assembly on carpet or other areas which are prone to static
charge buildup.
Refer to
Figure B. PCB Layout and Belt Idler Assembly, page 3.
F.
Step 1.
1. Remove the handle and the dust cover.
2. Place the vacuum face down on the bench.
3. Remove the base plate by removing the 2 (two) screws.
4. Remove the agitator/brushroll.
5. Remove the 5 (five) mounting screws on the underside of the nozzle base tray. (See
Figure C. Location of Nozzle Cover
Screws
)
F.
Step 2.
Turn the vacuum over, depress handle release, and lay flat. Remove the nozzle cover.
F.
Step 3.
WARNING - If the vacuum is not in the upright position before continuing with the next step, injury may occur or vacuum
may be damaged.
1. Set the vacuum in the upright position and remove the 2 (two) screws from the spring assist bar.
2. Lay the vacuum flat. Remove the 3 (three) screws from the direct air motor inlet duct cover, and 1 (one) screw from each of
the wire strain relief (2 each)
3. Remove the belt.
4. Remove the 3 (three) screws from the idler cover and spring.
5. Disconnect the light lead connector from the light board (disconnect the ground wire if necessary).
6. Remove the 2 (two) screws from each of the pivot brackets.
F.
Step 4.
1. Lift the dust compartment up out of the nozzle base tray assembly.
2. Remove the pivot bushings and the direct air motor inlet seal from the dust compartment.
F.
Step 5.
1. Remove the 4 (four) screws holding the motor cover on the dust compartment.
2. Lift up on the motor cover and set it aside.
F.
Step 6.
Remove the screw connecting the PC board to the dust compartment.
F.
Step 7.
Disconnect the wire harness connector and slide the PC board from the dust compartment.
F.
Step 8.
Slide the board into the side channels and push board into place, then connect the wire harness to the new board.
F.
Step 9.
Re-insert the single screw to secure the board and reattach the wire harness connector.
F.
Step 10.
Re-assemble the vacuum by continuing to section
II. Maintenance Procedures, H. Installing the Motor Cover.
