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Voltage (V)
110
115
Current (A) Max.
2.7
2.6
10-4. Insulation Tests
On completion of disassembly and repair, measure the insulation resistance and conduct insulation tests
(dielectric strength test).
Insulation resistance: 7M
Ω
or more with 500 VDC Megohm Tester.
Dielectric strength:
AC 4000 V/1 minute, with no abnormalities
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
110 V, 230 V
AC 2500 V/1 minute, with no abnormalities
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
115 V
CAUTION
• Ensure without fail that the insulation resistance measurement and
dielectric strength test are conducted between the plug blade and some
portion of the external metal frame such as the gear cover with main
switch turned ON. Never carry out these tests between the two blades of
the plug. This could cause burning out of the control element in the
switch.
10-5. No-Load Current Value
After no-load operation for 30 minutes, the no-load current value should be as specified below at a
frequency of 50/60 Hz.
Cord
Switch
Controller circuit
Noise suppressor
Wiring block (C)
Stator
1
2
3
4
Armature
Fig. 21 With noise suppressor
230
1.3
