Electric Chain Hoists (Single Brake)
Model NECH
PAGE: 44
NECH-0214
ACI Hoist & Crane | 2721 NE 4th Ave Pompano Beach, FL 33064| 954.367.6116
Visit WWW.ACIHOIST.COM for the most current information
6.9
Tests
All new complete hoists, less trolley or trolleys, are load tested by ACI in accordance with ASME B30.16. Hoists furnished
in an uncompleted condition (example, less controls, less motor, less load chain, etc.) as hoist components, and winch
units are not load tested by ACI. Therefore, it is the responsibility of the owner/user to load test the final lifting system,
using such hoist components or winches in accordance with ASME B30.16. If the hoist is installed on a crane, load
testing of the crane in accordance with, as applicable, ASME 830.2, ASME B30.11, or ASME B30.17 may be required.
Testing of hoists after original installation is required when the hoist has been altered or repaired; has been idle for a
period 12 months or longer; or in accordance with specific testing requirements established by the owner/user. General
testing requirements are outlined in ASME 830.16 and should be followed. ASME B30.16 lists two types of hoist tests as
follows:
•
Operational Test
•
Load Test
ASME B30.16 uses the words
SHALL
and
SHOULD
in listing requirements and defines these two words as follows:
•
SHALL
–
indicates that the rule is mandatory and must be followed.
•
SHOULD
–
indicates that the rule is a recommendation, the advisability of which depends on the facts in
each situation.
6.9.2
Operational Test
All altered or repaired hoists, or hoists that have not been used within the past 12 months,
SHALL
be tested by the
owner/user before being placed in operational service. The operational test is performed without a load on the hook and
includes:
•
Operation of control devices.
•
Lifting and lowering.
•
Operation of brakes.
•
Operation and setting of limit switch devices.
Operational test procedures are as follows:
i.
Check hoist travel for correct hook motion to ensure the hoist motor is properly phased. Since motor rotation
of a three-phase AC motor can be changed by reversing any two of the lines feeding power to the motor, the
direction of hook motion must be checked to verify that it is correct in accordance with the hoist control
device markings.
-
MOMENTARILY
activate the
UP
button of the hoist control device and observe the direction of hook
motion. If the direction of the hook travel matches with the direction marking of the hoist control
device button activated (example, hook direction is UP when the hoist UP control device button is
activated), the hoist motor is properly phased and proceed to step 2. If the direction of the hook
travel does not match with the direction marking of the hoist control device button activated, the
hoist motor is improperly phased and must be corrected.
DO NOT
use the hoist until motor phasing
is corrected.