Wire Rope Hoist
PAGE: 28
Model WR
WR-0214
2721 NE 4
th
Ave Pompano FL, 33064 | (954) 367-6116
Visit WWW.ACIHOIST.COM for the most current information
4.8 Before Operating the Hoist:
Before energizing the power supply, and inspecting and testing the hoist prior to initial operational use, check
that all electrical connections are in accordance with the wiring diagram located in hoist control enclosure.
ASME B30.16 requires that all new, altered, or modified hoists be inspected by a designated person prior to
initial use to verify that the equipment and installation comply with applicable provisions of the standard. Such an
inspection should be performed at this time, using ASME B30.16 as the basis for inspection procedures.
Energize the power supply to the hoist.
Conduct Operational Test 5.4.1
Check operation of the end limit switch and adjust the lever system.
4.8.1 Checking the end limit switch function
The end limit switch terminates the motion of the lifting mechanism in both directions in accordance with the disposition
of the two limiting rackets 1 and 3 (fig. 4.8.1.1) along the bar 2. The bar actuates the end limit switch disposed in the
electric panel.
Figure 4.8.1.1
All checking of limit switches should be accomplished without a load on the hook. All checking of limit switches should
be accomplished by using the low speed of multiple-speed hoists, or inched into the limit if the hoist is a single-speed
unit. The check is performed as you put the hook-block about its medium position in relation to the lifting height. After
that with the button pressed "upward" put the bar of the limit switch into motion by hand in the direction of the movement
of the rope guide, corresponding to "upward" direction; the movement of the hook-block shall cease.
The lever system of the limit switch is adjusted for using the entire lifting height. Adjustment for other intermediate
positions of the hook, i.e. using the limit switch as operational one is not allowed.
Daily, before starting work, check the operation of the brake and the limit switch.
Do not use the limit switch as an operational one in any case.
Damage to the hoist, a dropped load, and injury may result if limit switches fail due to improper
use.
Under normal operating conditions, stop hoist travel before engaging limit switches. Limit switches
are safety devices and should not be used as normal operating control.
