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Note in Repairing
Whenever you find any trouble in your machine, first, refer to this list to check the machine for solution.
(1) Use a full charged battery that 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 the running test 10 times.
3 TROUBLESHOOTING
Fig. T-2
Troubleshooting of Controller Using Tester
Trouble on Controller can be checked with Tester (1R402-A) as described in
Fig. T-2
.
Fig. T-1
Star mark
(1) Set Tester (1R402-A) to Diode mode ( ).
(2) Remove Battery from the machine,
(3) Touch (+) Terminal with the black probe and (-) Terminal
with the red probe. Then wait until the reading voltage
reaches a stable value.
Note:
You cannot make a correct test, if you touch
(+) Terminal with the red probe and (-) Terminal
with the black probe.
Black probe
Red probe
(+) Terminal
(-) Terminal
(4) If it reads
0.9 V-1.3 V
, Controller is
in order
.
If it reads
0 V
,
about 0.4
V or about 0.8V
,
FET (Field Effect Transistor) built in Controller
is broken, and
Controller must be replaced
.
