Check List For Troubleshooting - Makita XBU02 Repair Manual

R
epair
[4] TROUBLESHOOTING

Check List for Troubleshooting

Check the items from top of the following list. (Description of the item is referred to Circuit diagram in Fig. D-1.)
After corrective action, return to the start of Trouble shooting and check again.
Does it read 0.9V ~ 1.3V on the tester?
When a tester cannot be prepared, go to "Yes".
Yes
Yes
Motor runs when the machine
is switched on.
(Check by repeating 10 times.)
In case of running inconstantly,
go to "No".
No
If your problem cannot be solved although
its corrective action has been carried out.
Symptom
No
3 lamps on each
battery fuel gauge
light on.
Yes
Variable control
can be functioned
by trigger.
Yes
Air volume/speed
selection can be
functioned by dial.
Yes
The machine does
not have any trouble.
Battery fuel gauge
lights on.
Yes
Rotor is rubbed to
Stator.
Yes
Cause
Controller is broken.
No
Controller is broken.
Connectors are in incomplete
connection.
No
Lead wires are broken.
Switch is broken.
Connectors are in incomplete
connection.
No
Lead wires are broken.
Sub controller is broken.
Switch is broken.
No
Terminal is broken.
Controller is broken.
No
Controller is broken.
Rotor is broken.
Stator is broken.
P 10/ 13
Corrective action
Replace Controller.
Replace Controller.
Connect them firmly.
Check Lead wires,
or replace them.
Replace Switch.
Connect them firmly.
Check Lead wires,
or replace them.
Replace Sub controller.
Replace Switch.
Check Terminal,
or replace it.
Replace Controller.
Replace Controller.
Replace Rotor.
Replace Stator.
Replace Controller.