Makita XBU02, Руководство по ремонту

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R
epair
[4] TROUBLESHOOTING
Whenever you find any trouble in your machine, refer to this chapter first.
Trouble on Controller can be checked with Tester as follows.
(1) Use a full charged battery which has the star mark. ( Fig. T-1 )
(2) When Housing is disassembled, check the conditions of the electrical parts
(Connectors, Lead wires, Switches, etc.), Rotor, Stator, Gear section, etc.
(3) Do a running test 10 times.
Black test probe
Red test probe
(-) pole (+) pole
Lock ON
button
Switch lever
１
.
１
Note in Repairin g
Star mark
Fig. T -1
Fig. T -2
Test for recognizing the trouble on FET (Field effect transistor) of Controller
2. After removing the battery from the machine,
lock Switch lever to ON position by pushing
Lock ON button.
1. Set Digital tester (1R402) in the diode mode
( mark on the tester).
3. Connect Black test probe to the plus pole,
Red test probe to minus pole of Terminal.
And, check the value display on the tester.
Note: Be careful not to connect the probes in reverse.
4. Wait until the reading is stable.
If it reads within 0.9V - 1.3V ,
there is no fault on FET of Controller.
If it reads 0V or 0.4V approx., Controller is
broken
. Replace it with a new one.