Table 2. Check Points For Periodic Inspection - Toshiba HV6AS Instruction Manual

MAINTENANCE
Table 2 Check Points for Periodic Inspection
Check Point Check Item
Operating Loose bolts,
Mechanism nuts or screws
Dust or foreign
matter inside
Indicator
operation
Warpage
Smooth
operation
Main Circuit Discoloration
due to heat
from conducting
parts
Loose bolts,
nuts or screws
Dust on surface
of vacuum
interrupter
Insulator Dust, foreign
matter or
damage
Check Method
Tighten using Make sure all bolts, nuts
screwdriver or and screws are tight.
wrench.
Visual The circuit breaker
inspection. should be clean and
contain no foreign matter.
Visual Make sure the number of
inspection. operations is correctly
displayed.
Visual There should be no
inspection. warpage or missing
parts.
Manual Make sure moving parts
operation. operate smoothly.
Visual
inspection or
touch. Check
lubrication.
Visual Make sure there is no
inspection. discoloration.
Tighten using a Make sure all bolts, nuts
wrench. and screws are tight.
Visual Make sure there is no
inspection. dust on the surface.
Visual Make sure there is no
inspection. dust, foreign matter or
breakage.
Criteria
Tighten if loose.
See Table 1 for
tightening torques.
Wipe with a clean
dry cloth.
Check the cause
and repair.
Check the cause
and repair.
Apply a small
amount of
lubrication.
Check the cause
and repair. Tighten
connections to circuit
breaker. See Table
1 for tightening
torques.
See Table 1 for
tightening torques.
Wipe with a clean,
dry cloth.
Wipe with a clean,
dry cloth. If
damaged, contact
Toshiba.
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