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 7.2.11 Start Switch
Check the key-operated switch in the run position. If the key can be left in the run position or
removed in the run position, check that the emergency stop buttons will function properly and the
escalator will not restart when the emergency stop buttons are released. Where automatic
starting devices are provided, check that they are nonfunctional after the emergency stop buttons
are released.
7.3 PERIODIC INSPECTION AND TESTS
7.3.1 Scope
Division 310 of the A17.2 Manual covers operational inspections and tests. It is required that
these inspections and tests must be performed every 12 months.
7.3.2 Machinery Space
Permanent electric lighting and a 20 Amp ground type 110V duplex receptacle shall be
provided in every remote machine room. The illumination shall be not less than 10 foot candles
at the floor level. The lighting control switch shall be located within easy reach of the access to
such rooms. Where practical, the light control switch shall be located on the lock jamb side of
the access door. Where the machine is located in the truss, a permanent 20 Amp grounding type
110 V duplex receptacle accessibly located within the machine area of the truss shall be provided
to accommodate a drop cord light. Determine whether the machinery space is clean and free of
oil and debris.
7.3.3 Controls
Examine controller (See Figure 7-9) visually to determine that it is clean and that contacts of
magnetically operated contactors and relays and the electrical connections thereto are in good
condition. Determine that the fuses are in place and have not been jumped or otherwise tampered
with. Where there is more than one driving machine in a room, check that each disconnect
switch or circuit breaker is numbered to correspond to the number of the driving machine which
it controls. Visually check the condition of the mechanical brake, if possible.
7.3.4 Wiring
All electrical wiring should be checked for damage. Many times conductors and conduits have
become damaged when working in the area. This must be constantly inspected to maintain a safe
environment.
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