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Electric Chain Hoists (Single Brake)
Model NECH
PAGE: 16
NECH-0214
ACI Hoist & Crane | 2721 NE 4th Ave Pompano Beach, FL 33064| 954.367.6116
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If personnel are required to work at elevations in excess of 6 feet above floor or ground level, a fall prevention
policy and procedure shall be developed, documented, and implemented prior to installation.
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Check power supply that will be furnished to the hoist and trolley. It must be the same as shown on the hoist and
trolley serial plate.
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Check load chain for damage. Be sure load chain is properly seated in load sheave and sheave pockets.
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After repair and reassembling of the electric hoist check the phasing and the limit switch adjustment for upper
and lower position of the loading hook.
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While conducting maintenance and repair activities for electric repairs/maintenance, make sure that there is no
load on the hook; the power supply switch is turned off and unauthorized switching on is eliminated.
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Check the loading hook for cracks and deformities as well as the good working order of the fuse for self-release
of the load.
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Check the connection of cable protective conductors to the grounding terminals in the electric board as well as
the transformer and electricity.
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If the hoist has a trolley, check that the crane bridge beam or monorail beam is level, straight, and clean. Check
that trolley stops are installed, or install trolley stops, at the open end or ends of the beam to prevent the trolley
from traveling off the beam. Trolley stops that engage trolley wheels are not recommended. Check that trolley
stops will prevent overhanging parts of the hoist and trolley from interfering with other equipment beyond the
ends of the beam or monorail.
4.2
Installation of Hoist
Prior to mounting the hoist ensure that the suspension and its supporting structure are adequate to support the hoist and
its loads.
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Hook Mounted
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Attach the hoist’s
top hook to the fixed suspension point. Ensure that the fixed suspension
point rests on the center of the hook’s saddle and that the hook’s latch is
engaged.
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Lug Mounted
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Fasten securely with lug suspension pins. Check that there are no obstructions to the
operation of the hoist including the path of the chain. Use only the lug mounting hole for suspension of the
hoist.
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Under Running Trolley Hoist Unit -
Trolley is mounted on hoist and shipped as one unit. Trolley will operate on
standard S-shapes or W-shapes flanges.
The main switch (disconnect) supplying power to
the crane, monorail, or other piece of equipment
where the hoist is to be installed, shall be de-
energized. Lock and tag the main switch in the de-
energized position in accordance with ANSI Z244.1.