Harrington-hoists-and-cranes (N)ER Load Limiter - ((N)ER2) Manual de usuario descargar pdf (Pagina 21)

4.0 Adjustment

4.1 General:

The general sequence for adjusting is to determine the Static Set Load (SSL), then use the SSL to adjust the Load

Limiter (LL).

4.2 Determine Static Set Load

4.2.1 General

The general formula for determining the SSL is

SSL = RC X SP X f

Where

RC is Rated Capacity of either LL or hoist. (see sections 4.2.2 or 4.2.3)

SP is the percentage of the hoist’s rated capacity at which the LL is to actuate (Factory set at

1.15%)

f is the Dynamic Load Factor to account for small load increases due to acceleration while

lifting.

4.2.2 Prior to Load Limiter installation:

If the LL is to be adjusted prior to installation on the hoist, then determine SSL using f and the LL’s RC from

Table 4-1.

4.2.3 After Load Limiter installation:

If the LL is to be adjusted after installation on to the hoist, then determine the SSL using f and the hoist’s RC

from Table 4-1.

Table 4-1

Hoist

Capacity Code*

Load Limiter Type

Rated Capacity

(lbs.)

Hoist

(Tons)

001H 01H 176 1/8 1.55

003S 03S 331

1/4

1.45

003H 03H 375 1.64

005L

05S 595 1/2 1.30

005S

010L

10S 1190 1 1.30

010S

015S 15M 1279 1 1/2 1.14

020L

20S 1962 2 1.32

020S

025S 25M 2359 2 1/2 1.27

030C 30S 4145 3 1.09

050L 50R 6945 5 1.10

*Refer to ER2/NER2 Owner’s Manual.

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Harrington-hoists-and-cranes (N)ER Load Limiter - ((N)ER2) Manual de usuario Pagina 21

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