Hitachi DH 50MB Technical Data And Service Manual page 22

Wiring connections
The wiring connections are described below with reference to Fig. 14. The Model DH 50MB uses a plug-in
module type wiring system consisting of plug (A) ass'y and plug (B) ass'y. The internal wires (2 and 3) of the
control circuit ass'y and the internal wires from the stator, and the internal wire (5) of the control circuit ass'y
and the internal wire from the piece ass'y, are press-connected by crimp-on connectors. The rest of the
internal wires (1 and 4) of the control circuit ass'y are connected to the plug (A) ass'y, then the plug (A) ass'y is
fitted into the housing. The plug (B) ass'y is fitted into the handle section through the plug holder and is
connected with the switch terminal and cord. Wiring connection is complete when the housing section, the
handle and handle cover section are all assembled and then fastened together with screws. With such a
wiring structure, assembling and disassembling procedures associated with wiring connection have been
largely simplified over previous models.
Housing
Internal wire of
piece ass'y
1
Control circuit ass'y
Internal wire of stator
Connector
2
Plug (A) ass'y
3
5
4
Dial
frame
Handle
Side cover
Housing
Plug (B) ass'y
Plug (A) ass'y
Side cover
Plug (B)
ass'y
Plug holder
Handle cover
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Handle
Switch
Cord
Cord crip
Fig. 14
Handle
cover