Hitachi WH 14DBDL Service Manual page 7

7. Disassembly of the Wiring Ass'y
(1) Remove the two Machine Screws (W/Sp. Washer) M3 x 5 [38]<35> that fasten the terminals of lead
wires (red and black) of the Stator FET PCB [37A]<34> and DC-Speed Control Switch [35]<32>.
(2) Scrape away silicon grease on the connector of the DC-Speed Control Switch [35]<32> with the edge of
a flat-edge screwdriver or similar tool, slowly pull up the connector zip and gradually pull out flat cable
(B) of the Controller [34]<31>.
(3) Cut open the SUMITUBE(R) that covers the joint of connector cables (A) and (B), and then slowly pull
out the cable from the connector.
NOTE: Be careful not to damage the connector cable when cutting open the SUMITUBE(R).
Fig.5 • Power supply
Connector cable (A)
B
Connector cable (A)
Pulling
direction
Pulling
direction
Connector cable (B)
Connector
Connector cable (B)
Stator FET PCB [37A]<34>
Connector
A
B
-6-
Lead wire (black)
Lead wire (red)
Machine Screw
(W/Sp. Washer) M3 x 5 [38]<35>
DC-Speed Control Switch [35]<32>
Connector
A-A
A
Flat cable (B)
Controller [34]<31>
Capacitor
LED light
Flat cable (B)
Zip
Pull up
Connector