3.3.4
Hook Test
Measure hook for hook throat spread before and after load test. Establish
a throat dimension base measurement by installing two tram points and
measuring the distance between these tram points (plus or minus 0.4 mm 1/64
inch). Record this base dimension. Measure the distance between tram
points before and after load test. An increase in the throat opening by
more than 5 percent from the base measurement shall be cause for rejection.
3.3.5
No-Load Test
a.
Hoist: Raise the load hook the full operating lift distance and
verify satisfactory operation of hoist, upper limit switch, lower
limit switch, and the hoisting and lowering speeds. [Operate the
hoist at low and high speed in both directions.]
b.
Trolley: Operate trolley assembly the full length of the monorail
in both directions. [Operate trolley at low and high speed in
each direction.] Verify satisfactory operation and verify trolley
speed. [Operate all rail switches.]
3.3.6
Load Test
125 Percent (plus 5 percent minus 0) of rated capacity
a.
Hoist Static Test: Raise test load approximately one foot above
the floor and hold for 10 minutes. Observe load lowering that may
occur which will indicate malfunction of hoisting component or
brake. Lower the test load to the floor until the hoist line is
slack.
b.
Hoist Dynamic Test: Raise the test load to approximately 1.5 m 5
feet above the floor [using both speed points in the process].
Lower the load back to the floor [using both speed points]. Stop
the test load at least once while lowering [at high speed] and
observe proper brake operation. Wait 5 minutes, then repeat the
above cycle.
**************************************************************************
NOTE: Load Brake Test and Loss of Power Test shall
be performed at low speed for two speed hoists.
**************************************************************************
c.
Load Brake Test: Raise test load approximately 1.5 m 5 feet.
With the hoist controller in the neutral position, release the
holding brake. The load brake should hold the test load. Again
with the holding brake in the released position, start the test
load down [at low speed] and return the controller to off position
as the test load lowers. The load brake should prevent the test
load from accelerating. NOTE: It is not necessary for the load
brake to halt the downward motion of the test load.
d.
Loss of Power Test: Raise the test load approximately 1 m 3 feet
and while lowering test load [at low speed], cut main power to
hoist. Load should stop.
e.
Trolley Test: With test load hoisted to a height of 300 mm one
foot above the floor, operate trolley the full distance of the
monorail in both directions [using both speed points in the
SECTION 14622N
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