Troubleshoot - Makita HP332D Technical Information

Cordless hammer driver drill

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epair

[4] TROUBLE SHOOT

Note in Repairing

(1) Use the full charged battery that has a star mark. (Fig. T-1)

(2) Do the running test 10 times.

(3) When Housing is disassembled, check the conditions of the electrical parts

(Connectors, Lead wires, Switches, etc.), Rotor, Stator, Gear section, etc.

Trouble Shooting using Tester

Trouble on FET (Field effect transistor) of Controller can be checked with Tester as follows. See Fig. T-2.

Fig. T-2

4. Controller is in order, if the Tester designates 0.7V ~ 0.9V. However, if 0 V~0.4 V is designated,

Field effect transistor built in Controller, has any trouble. Then, the Controller has to be replaced.

3. Contact black probe with (+) Terminal. And red probe with (-) Terminal.

Wait until the Tester designates stable figure.

Fig. T-1

1. Set 1R402-A Tester to diode mode.

2. Removing Battery, lock Switch lever

to "ON" position, for example, by bundling

with tape.

P 16/ 20

Star mark

Terminal

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