Toshiba Tortilla Maker HV6FS-MLD Installationsanweisungen

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