Makita DTS141 Technical Information page 9

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 re-check again.
Symptom
Does the tester indicate 0.79V ~ 0.81V ?
When a tester cannot be prepared, go to "Yes".
Yes
Yes
Motor runs when the machine
is switched on.
(Check in forward rotation
mode and in reverse rotation
mode 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.
No
No
Battery fuel gauge
lights on.
Yes
Speed and Rotating
direction can be
No
changed with Trigger
and F/R change lever.
Yes
No
LED Job light is ON.
Yes
The machine does
not have any trouble.
No
Battery fuel gauge
lights on.
Yes
No
LED Job light is ON.
Yes
No
Rotor is rubbed to
Stator.
Yes
Cause
Controller is broken.
Controller is broken.
Connectors are in incomplete
connection.
Lead wires are broken.
Switch is broken.
Connectors are in incomplete
connection.
Lead wires are broken.
LED Light circuit is broken
Switch is broken.
Switch is broken.
Terminal is broken.
Controller is broken.
Connectors are in incomplete
connection.
Lead wires are broken.
LED Light circuit is broken
Switch is broken.
Controller is broken.
Rotor is broken.
Stator is broken.
P 9/ 11
Corrective action
Replace Controller.
Replace Controller.
Connect it firmly.
Check Lead wires,
or replace it.
Replace Switch.
Connect it firmly.
Check Lead wires,
or replace it.
Replace LED Light
circuit.
Replace Switch.
Replace Switch.
Check Terminal,
or replace it.
Replace Controller.
Connect it firmly.
Check Lead wires,
or replace it.
Replace LED Light
circuit.
Replace Switch.
Replace Controller.
Replace Rotor.
Replace Stator.
Replace Controller.