Toshiba Tortilla Maker HV6FS-MLD Installationsanweisungen
Page 28
MAINTENANCE
Table 2. Check Points for Inspection (cont’d)
Check Point
Check Item
Check Method
Criteria
What to do
Auxiliary
Switch
Switch
Terminals loose
or disconnected
or disconnected
Visual
inspection.
Tighten using a
screwdriver.
inspection.
Tighten using a
screwdriver.
Make sure terminals are
not loose or disconnected.
not loose or disconnected.
Repair if
disconnected.
Tighten if loose.
See
Table 1 for
tightening torques.
disconnected.
Tighten if loose.
See
Table 1 for
tightening torques.
Case/contacts
Visual
inspection.
inspection.
Make sure there is no
damage or warping.
damage or warping.
Replace if damaged
or warped.
or warped.
Control
Circuits
Circuits
Smooth
movement of
motor charging
mechanism
movement of
motor charging
mechanism
Energize the
control circuit.
control circuit.
Breaker (motor-operated
type) should charge
quickly and smoothly.
type) should charge
quickly and smoothly.
If the circuit fails to
operate, check the
cause and repair.
operate, check the
cause and repair.
Terminals
loose
or disconnected
Visual
inspection.
Tighten using a
screwdriver.
inspection.
Tighten using a
screwdriver.
Make sure terminals are
not loose or disconnected.
not loose or disconnected.
Repair if
disconnected.
Tighten if loose.
See
Table 1 for
tightening torques.
disconnected.
Tighten if loose.
See
Table 1 for
tightening torques.
Insulation
Resistance
Measure-
ment
Resistance
Measure-
ment
Measure main
circuit to ground
circuit to ground
Megger test at
1000V.
1000V.
Resistance should be
500M
500M
Ω or greater.
Measure
between main
circuit terminals
circuit terminals
Megger test at
1000V.
1000V.
Resistance should be
100M
100M
Ω or greater.
Measure
control
circuits to
ground
ground
Megger test at
500V.
500V.
Resistance should be
2M
2M
Ω or greater.
If the insulation
resistance is low,
wipe off the vacuum
interrupter and other
insulation surfaces
with a clean dry
cloth and then
repeat the test.
resistance is low,
wipe off the vacuum
interrupter and other
insulation surfaces
with a clean dry
cloth and then
repeat the test.
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