Hitachi WR 16SE Repair Manual page 5

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Reverse the disassembly procedures above to reassemble the impact wrench. However, when

reassembling the impact wrench, pay particular attention to the following items.

1. Reassembly of the power supply portion and its vicinity

(1) For replacement of the Switch [32], Controller (A) [33], Controller (B) [40], and the Stator IGBT PCB

[28], connect these parts correctly with wires according to the wiring diagram.

(2) Connect the internal wires of Controller (A) [33] to the Switch [32] paying attention to the colors of the

internal wires. Then secure them with four screws as shown in Fig. 4.

(3) Note the following when connecting the connector cable to the connector of Controller (A) [33].

• Firmly connect the connector cable to the connector until it is fully seated.

• After connecting the connector cable to the connector, apply silicon adhesive (ThreeBond TB1211,

Code No. 306927) to the entire connector joint.

(4) Fully fit the internal wire and connector cable of the Stator IGBT PCB [28] into the wiring groove for

internal wires of housing (A), so that neither gets pinched.

(5) Be careful not to pinch the internal wires of Controller (A) [33].

(6) Insert the earth terminal of the Stator IGBT PCB [28] into a gap between the housing rib, screw boss,

and Stator IGBT PCB [28] as shown in Fig. 5. Be careful not to pinch the earth terminal.

Reassembly

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