f.
Check electrical drive components for proper operation, freedom
from chatter, noise, overheating, and lockout/tagout devices for
energy isolation.
g.
Inspect gears for abnormal wear patterns, damage, or inadequate
lubrication.
h.
Verify that locations of crane capacity plates are visible from
pendant operator's position.
3.2.1.4
Hooks
Hooks shall be measured for hook throat spread before and after load test.
A throat dimension base measurement shall be established by installing two
tram points and measuring the distance between the tram points to within
0.4 mm 1/64 inch. This base dimension shall be recorded. Distance between
tram points shall be measured before and after load test. An increase in
throat opening by more than 1 percent from base measurement shall be cause
for rejection.
3.2.2
No-Load Testing
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NOTE: Delete references to micro-drive when not
applicable.
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3.2.2.1
Hoist Operating and Limit Switch Test
Load hook shall be raised and lowered through the full range of normal
travel at rated speed and other crane speeds. Load hook shall be stopped
below the geared limit-switch upper setting. In slow speed only, proper
operation of upper and lower limit-switches for primary and micro-drive
motions shall be verified. The test shall be repeated a sufficient number
of times (minimum of 3) to demonstrate proper operation. Brake action
shall be tested in each direction. Proper time-delay shall be verified
between the actuation of dual brakes.
3.2.2.2
Trolley Travel
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NOTE: Delete references to micro-drive when not
applicable.
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Trolley shall be operated the full distance of bridge rails exercising all
primary drive and micro-drive speed controls in each direction. Brake
operation shall be verified in each direction. In slow speed or
micro-drive, trolley bumpers shall contact trolley stops located on the
bridge girders. In slow speed the proper operation (interrupt power,
automatic reset) of the trolley limit-switches at both limits of trolley
motion shall be tested.
3.2.2.3
[Bridge] [Gantry] Travel
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NOTE: Delete references to micro-drive when not
applicable.
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SECTION 14630A
Page 53
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